Re: Importing classes
Why don't you jar the package and add it to the classpath -Original Message- From: panos periorellis [mailto:[EMAIL PROTECTED]] Sent: Monday, January 14, 2002 9:29 PM To: [EMAIL PROTECTED] Subject: Importing classes I have developed some java classes which i want to import in my JSP code.. can somebody tell me how do i do this. i have a list of classes in a package called travel but this %@ page import=travel.* % produces errors. In fact it says that the package cannot be found? Anyone with similar problems? thanks P === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com THIS E-MAIL MESSAGE ALONG WITH ANY ATTACHMENTS IS INTENDED ONLY FOR THE ADDRESSEE and may contain confidential and privileged information. If the reader of this message is not the intended recipient, you are notified that any dissemination, distribution or copy of this communication is strictly Prohibited. If you have received this message by error, please notify us immediately, return the original mail to the sender and delete the message from your system. === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: A java question.
Whenever you have to write a statement block within if or else, use {
and } to wrap the statement block. Ur way only works for a single statement.
Try this code :
class test {
static boolean check;
public static void main(String args[]) {
int i;
if(check == true)
i=1;
else
i=2;
if (check == false)
{
i=2;
i=i+2;
}
else
i = i + 4;
System.out.println(i);
}
}
-Original Message-
From: Miao, Franco CAWS:EX [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, January 15, 2002 4:05 AM
To: [EMAIL PROTECTED]
Subject: A java question.
class test {
static boolean check;
public static void main(String args[]) {
int i;
if(check == true)
i=1;
else
i=2;
if (check == false)
i=2; i=i+2;
else
i = i + 4;
System.out.println(i);
}
}
C:\javac test.java
test.java:13: 'else' without 'if'
else
^
I know this is cause by i=2; i=i+2;
if just i=2, then everthing will be fine, how to make i=2; i=i+2; as a
block, so compiler will not consider it should need another if ?
Franco
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Problem while writting the response to an Excel file.
Hi, I am writting the response of a
servlet/jsp page to an Excel file. I am setting the
response.setContentType("text/xls"); But the output is written to a text file in
plain text format.
How to write the response to an excel
file.
Actually my application is like this. I am having
an JSP page, where i have an "download Result" link. By clicking on the link,
the results can either be saved on to the hard disk as an Excel file or can be
displayed on the same window by opening an excel sheet. Your help will really be
appreciated.
Thanks,
Regards,Raja
Re: Problem with IBM Websphere Application Server 4
Hi, You have to look at the log files in as_root/logs to see why your appserver is not starting (stderr + stdout). The Adminconsole will just start if you appserver is running. So it's normal if you can't get it if your appserver is down. The fact that you sometimes got it is a hint that your http server is correctly configured. To access a database from Websphere, you have to configure a jdbc driver and a DataSource from the adminconsole and let your application point to that DataSource. regards Chris |+--- || Debopam Ghoshal | || [EMAIL PROTECTED]| || Sent by: A | || mailing list | || about Java Server| || Pages| || specification and| || reference| || JSP-INTEREST@JAV| || A.SUN.COM | || | || | || 14/01/2002 20:11 | || Please respond to| || A mailing list | || about Java Server| || Pages| || specification and| || reference| || | |+--- | | | | To: [EMAIL PROTECTED] | | cc: | | Subject: Problem with IBM Websphere Application Server 4 | | Dear All, I recently installed IBM Websphere Application Server 4 along with IBM HTTP Server. The HTTP server starts automatically when my machine starts(OS: Windows 2000 Server). But when I start my Application Server, sometime it starts and most of the times it does not start. The administrator's console page (http://localhost:9090/admin) does not show up most of the times. Can someone help me configure my Appserver as well as HTTP Server so that they run smoothly. Moreover I would like to know how to connect my appserver to Oracle 8i server running on my machine, since i do not have DB2 installed. thanx a lot in advance, regards, Debopam. === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
signoff JSP-INTEREST
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Re: Problem while writting the response to an Excel file.
instead of "text/xls"
use
"application/vnd.ms-excel"
Geert
Van Damme
-Original Message-From: A mailing list about Java
Server Pages specification and reference
[mailto:[EMAIL PROTECTED]]On Behalf Of rajacSent:
dinsdag 15 januari 2002 2:14To:
[EMAIL PROTECTED]Subject: Problem while writting the
response to an Excel file.
Hi, I am writting the response of
a servlet/jsp page to an Excel file. I am setting the
response.setContentType("text/xls"); But the output is written to a text file
in plain text format.
How to write the response to an
excel file.
Actually my application is like this. I am having
an JSP page, where i have an "download Result" link. By clicking on the link,
the results can either be saved on to the hard disk as an Excel file or can be
displayed on the same window by opening an excel sheet. Your help will really
be appreciated.
Thanks,
Regards,Raja
JSP and MS Acces97
Hi panos, thanks for your help. Hi everybody, i'm running tomcat4.0 with jdk1.3.1_02 in win 98. Bun now i need know how can i do to make a connection win a data base in Microsoft acces 97 trought any web page into my web site soported with tomcat 4.0. thanks in advanced. --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas Universidad Industrial de Santander --- On Mon, 14 Jan 2002, panos periorellis wrote: If you're doing this from DOS it should work Note that one of the directories inside the set catalina_home=c:\tcat\jakarta-tomcat-4.0\ should be bin lib etc in other words our directory should point to those so if there is another directory inside jakarta-tomcat-4.0 before the bin and lib directories then set the path to that the other thing i thought of is that the jakarta-tomcat-4.0 directory name is a bit long...I remember i had to shorten mine I have renamed it as jak.. take care panos - Original Message - From: Wilson E. Lozano R. [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, January 14, 2002 09:38 Subject: Re: TOMCAT4.0 + win98 help!!! Hi Panos, Thanks but i was do it, however i don't use jrun in this version of tomcat the variable isn't tomcat_home, is catalina_home, and i does set catalina_home=c:\tcat\jakarta-tomcat-4.0\ and i use jsdk and java_home=c:\jsdk1.3.1_02\ and my problem don't stop. ?? Thanks in advanced. --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas Universidad Industrial de Santander --- On Mon, 14 Jan 2002, panos periorellis wrote: you have to set the variables from DOS. i.e. set TOMCAT_HOME=c:\tomcat\jak\jak (this is on my machine ...replace with the direcotyr on yours. set JAVA_HOME=c:\jbuilder\jdk1.3 (if you rin jbuilder that is) === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: JSP and MS Acces97
First of all you need to load the drivers. To do that you need: Class.forName(the whole path of the drivers here); After that the only thing you have to do is to open a connection with the speciffic DB server Connection con = DriverManager.getConnection(url of your database server, username- optional, password - optional); After that you can communicate with the server by just sending SQL statements. 15/01/2002 04:26:17, Wilson E. Lozano R. [EMAIL PROTECTED] wrote: Hi panos, thanks for your help. Hi everybody, i'm running tomcat4.0 with jdk1.3.1_02 in win 98. Bun now i need know how can i do to make a connection win a data base in Microsoft acces 97 trought any web page into my web site soported with tomcat 4.0. thanks in advanced. --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas Universidad Industrial de Santander --- On Mon, 14 Jan 2002, panos periorellis wrote: If you're doing this from DOS it should work Note that one of the directories inside the set catalina_home=c:\tcat\jakarta-tomcat-4.0\ should be bin lib etc in other words our directory should point to those so if there is another directory inside jakarta-tomcat-4.0 before the bin and lib directories then set the path to that the other thing i thought of is that the jakarta-tomcat-4.0 directory name is a bit long...I remember i had to shorten mine I have renamed it as jak.. take care panos - Original Message - From: Wilson E. Lozano R. [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, January 14, 2002 09:38 Subject: Re: TOMCAT4.0 + win98 help!!! Hi Panos, Thanks but i was do it, however i don't use jrun in this version of tomcat the variable isn't tomcat_home, is catalina_home, and i does set catalina_home=c:\tcat\jakarta-tomcat-4.0\ and i use jsdk and java_home=c:\jsdk1.3.1_02\ and my problem don't stop. ?? Thanks in advanced. --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas Universidad Industrial de Santander --- On Mon, 14 Jan 2002, panos periorellis wrote: you have to set the variables from DOS. i.e. set TOMCAT_HOME=c:\tomcat\jak\jak (this is on my machine ...replace with the direcotyr on yours. set JAVA_HOME=c:\jbuilder\jdk1.3 (if you rin jbuilder that is) === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com __ It can only be attributed to human error 2001 A Space Odyssey === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Problem while writing the response to an Excel file
Hi, I am writting the response of a
servlet/jsp page to an Excel file. I am setting the
response.setContentType("text/xls"); But the output is written to a text file in
plain text format.
How to write the response to an excel
file.
Actually my application is like this. I am having
an JSP page, where i have an "download Result" link. By clicking on the link,
the results can either be saved on to the hard disk as an Excel file or can be
displayed on the same window by opening an excel sheet. Your help will really be
appreciated.
Thanks,
Regards,Raja
Re: JSP and MS Acces97
Hi Panagiostis, thanks for your help, Well but where can i find o how can i load the drivers? i don't understod when you write class.forName(the whole path of the drivers here); an the data base is host in the same PC, remembre ithe plataform is win98. Can you send me an example please? --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas --- On Tue, 15 Jan 2002, Panagiotis Konstantinidis wrote: First of all you need to load the drivers. To do that you need: Class.forName(the whole path of the drivers here); After that the only thing you have to do is to open a connection with the speciffic DB server Connection con = DriverManager.getConnection(url of your database server, username- optional, password - optional); After that you can communicate with the server by just sending SQL statements. 15/01/2002 04:26:17, Wilson E. Lozano R. [EMAIL PROTECTED] wrote: Hi panos, thanks for your help. Hi everybody, i'm running tomcat4.0 with jdk1.3.1_02 in win 98. Bun now i need know how can i do to make a connection win a data base in Microsoft acces 97 trought any web page into my web site soported with tomcat 4.0. thanks in advanced. --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas Universidad Industrial de Santander --- On Mon, 14 Jan 2002, panos periorellis wrote: If you're doing this from DOS it should work Note that one of the directories inside the set catalina_home=c:\tcat\jakarta-tomcat-4.0\ should be bin lib etc in other words our directory should point to those so if there is another directory inside jakarta-tomcat-4.0 before the bin and lib directories then set the path to that the other thing i thought of is that the jakarta-tomcat-4.0 directory name is a bit long...I remember i had to shorten mine I have renamed it as jak.. take care panos - Original Message - From: Wilson E. Lozano R. [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, January 14, 2002 09:38 Subject: Re: TOMCAT4.0 + win98 help!!! Hi Panos, Thanks but i was do it, however i don't use jrun in this version of tomcat the variable isn't tomcat_home, is catalina_home, and i does set catalina_home=c:\tcat\jakarta-tomcat-4.0\ and i use jsdk and java_home=c:\jsdk1.3.1_02\ and my problem don't stop. ?? Thanks in advanced. --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas Universidad Industrial de Santander --- On Mon, 14 Jan 2002, panos periorellis wrote: you have to set the variables from DOS. i.e. set TOMCAT_HOME=c:\tomcat\jak\jak (this is on my machine ...replace with the direcotyr on yours. set JAVA_HOME=c:\jbuilder\jdk1.3 (if you rin jbuilder that is) === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Problem while writting the response to an Excel file.
See also Excel taglib from Coldtags suite: http://www.servletsuite.com/jsp.htm -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of rajac Sent: dinsdag 15 januari 2002 2:14 To: [EMAIL PROTECTED] Subject: Problem while writting the response to an Excel file. Hi, I am writting the response of a servlet/jsp page to an Excel file. I am setting the response.setContentType(text/xls); But the output is written to a text file in plain text format. How to write the response to an excel file. -- Coldbeans Software - server-side Java (tm) components http://www.servletsuite.com __ Your favorite stores, helpful shopping tools and great gift ideas. Experience the convenience of buying online with Shop@Netscape! http://shopnow.netscape.com/ Get your own FREE, personal Netscape Mail account today at http://webmail.netscape.com/ === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: JSP and MS Acces97
i know the rmijdbc driver. this is a little slow but it runs well - Original Message - From: Wilson E. Lozano R. [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 15, 2002 5:59 AM Subject: Re: JSP and MS Acces97 Hi Panagiostis, thanks for your help, Well but where can i find o how can i load the drivers? i don't understod when you write class.forName(the whole path of the drivers here); an the data base is host in the same PC, remembre ithe plataform is win98. Can you send me an example please? --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas --- On Tue, 15 Jan 2002, Panagiotis Konstantinidis wrote: First of all you need to load the drivers. To do that you need: Class.forName(the whole path of the drivers here); After that the only thing you have to do is to open a connection with the speciffic DB server Connection con = DriverManager.getConnection(url of your database server, username- optional, password - optional); After that you can communicate with the server by just sending SQL statements. 15/01/2002 04:26:17, Wilson E. Lozano R. [EMAIL PROTECTED] wrote: Hi panos, thanks for your help. Hi everybody, i'm running tomcat4.0 with jdk1.3.1_02 in win 98. Bun now i need know how can i do to make a connection win a data base in Microsoft acces 97 trought any web page into my web site soported with tomcat 4.0. thanks in advanced. --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas Universidad Industrial de Santander --- On Mon, 14 Jan 2002, panos periorellis wrote: If you're doing this from DOS it should work Note that one of the directories inside the set catalina_home=c:\tcat\jakarta-tomcat-4.0\ should be bin lib etc in other words our directory should point to those so if there is another directory inside jakarta-tomcat-4.0 before the bin and lib directories then set the path to that the other thing i thought of is that the jakarta-tomcat-4.0 directory name is a bit long...I remember i had to shorten mine I have renamed it as jak.. take care panos - Original Message - From: Wilson E. Lozano R. [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, January 14, 2002 09:38 Subject: Re: TOMCAT4.0 + win98 help!!! Hi Panos, Thanks but i was do it, however i don't use jrun in this version of tomcat the variable isn't tomcat_home, is catalina_home, and i does set catalina_home=c:\tcat\jakarta-tomcat-4.0\ and i use jsdk and java_home=c:\jsdk1.3.1_02\ and my problem don't stop. ?? Thanks in advanced. --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas Universidad Industrial de Santander --- On Mon, 14 Jan 2002, panos periorellis wrote: you have to set the variables from DOS. i.e. set TOMCAT_HOME=c:\tomcat\jak\jak (this is on my machine ...replace with the direcotyr on yours. set JAVA_HOME=c:\jbuilder\jdk1.3 (if you rin jbuilder that is) === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with
Re: JSP and MS Acces97
thanks Carlos, but, where find it? (the rmijdb) how install it? or how config it? --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas --- On Tue, 15 Jan 2002, Carlos wrote: i know the rmijdbc driver. this is a little slow but it runs well - Original Message - From: Wilson E. Lozano R. [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 15, 2002 5:59 AM Subject: Re: JSP and MS Acces97 Hi Panagiostis, thanks for your help, Well but where can i find o how can i load the drivers? i don't understod when you write class.forName(the whole path of the drivers here); an the data base is host in the same PC, remembre ithe plataform is win98. Can you send me an example please? --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas --- On Tue, 15 Jan 2002, Panagiotis Konstantinidis wrote: First of all you need to load the drivers. To do that you need: Class.forName(the whole path of the drivers here); After that the only thing you have to do is to open a connection with the speciffic DB server Connection con = DriverManager.getConnection(url of your database server, username- optional, password - optional); After that you can communicate with the server by just sending SQL statements. 15/01/2002 04:26:17, Wilson E. Lozano R. [EMAIL PROTECTED] wrote: Hi panos, thanks for your help. Hi everybody, i'm running tomcat4.0 with jdk1.3.1_02 in win 98. Bun now i need know how can i do to make a connection win a data base in Microsoft acces 97 trought any web page into my web site soported with tomcat 4.0. thanks in advanced. --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas Universidad Industrial de Santander --- On Mon, 14 Jan 2002, panos periorellis wrote: If you're doing this from DOS it should work Note that one of the directories inside the set catalina_home=c:\tcat\jakarta-tomcat-4.0\ should be bin lib etc in other words our directory should point to those so if there is another directory inside jakarta-tomcat-4.0 before the bin and lib directories then set the path to that the other thing i thought of is that the jakarta-tomcat-4.0 directory name is a bit long...I remember i had to shorten mine I have renamed it as jak.. take care panos - Original Message - From: Wilson E. Lozano R. [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, January 14, 2002 09:38 Subject: Re: TOMCAT4.0 + win98 help!!! Hi Panos, Thanks but i was do it, however i don't use jrun in this version of tomcat the variable isn't tomcat_home, is catalina_home, and i does set catalina_home=c:\tcat\jakarta-tomcat-4.0\ and i use jsdk and java_home=c:\jsdk1.3.1_02\ and my problem don't stop. ?? Thanks in advanced. --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas Universidad Industrial de Santander --- On Mon, 14 Jan 2002, panos periorellis wrote: you have to set the variables from DOS. i.e. set TOMCAT_HOME=c:\tomcat\jak\jak (this is on my machine ...replace with the direcotyr on yours. set JAVA_HOME=c:\jbuilder\jdk1.3 (if you rin jbuilder that is) === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some
Re: JSP and MS Acces97
http://www.objectweb.org/rmijdbc/ put in the java (jsp, web) server - Original Message - From: Wilson E. Lozano R. [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 15, 2002 6:40 AM Subject: Re: JSP and MS Acces97 thanks Carlos, but, where find it? (the rmijdb) how install it? or how config it? --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas --- On Tue, 15 Jan 2002, Carlos wrote: i know the rmijdbc driver. this is a little slow but it runs well - Original Message - From: Wilson E. Lozano R. [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 15, 2002 5:59 AM Subject: Re: JSP and MS Acces97 Hi Panagiostis, thanks for your help, Well but where can i find o how can i load the drivers? i don't understod when you write class.forName(the whole path of the drivers here); an the data base is host in the same PC, remembre ithe plataform is win98. Can you send me an example please? --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas --- On Tue, 15 Jan 2002, Panagiotis Konstantinidis wrote: First of all you need to load the drivers. To do that you need: Class.forName(the whole path of the drivers here); After that the only thing you have to do is to open a connection with the speciffic DB server Connection con = DriverManager.getConnection(url of your database server, username- optional, password - optional); After that you can communicate with the server by just sending SQL statements. 15/01/2002 04:26:17, Wilson E. Lozano R. [EMAIL PROTECTED] wrote: Hi panos, thanks for your help. Hi everybody, i'm running tomcat4.0 with jdk1.3.1_02 in win 98. Bun now i need know how can i do to make a connection win a data base in Microsoft acces 97 trought any web page into my web site soported with tomcat 4.0. thanks in advanced. --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas Universidad Industrial de Santander --- On Mon, 14 Jan 2002, panos periorellis wrote: If you're doing this from DOS it should work Note that one of the directories inside the set catalina_home=c:\tcat\jakarta-tomcat-4.0\ should be bin lib etc in other words our directory should point to those so if there is another directory inside jakarta-tomcat-4.0 before the bin and lib directories then set the path to that the other thing i thought of is that the jakarta-tomcat-4.0 directory name is a bit long...I remember i had to shorten mine I have renamed it as jak.. take care panos - Original Message - From: Wilson E. Lozano R. [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, January 14, 2002 09:38 Subject: Re: TOMCAT4.0 + win98 help!!! Hi Panos, Thanks but i was do it, however i don't use jrun in this version of tomcat the variable isn't tomcat_home, is catalina_home, and i does set catalina_home=c:\tcat\jakarta-tomcat-4.0\ and i use jsdk and java_home=c:\jsdk1.3.1_02\ and my problem don't stop. ?? Thanks in advanced. --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas Universidad Industrial de Santander --- On Mon, 14 Jan 2002, panos periorellis wrote: you have to set the variables from DOS. i.e. set TOMCAT_HOME=c:\tomcat\jak\jak (this is on my machine ...replace with the direcotyr on yours. set JAVA_HOME=c:\jbuilder\jdk1.3 (if you rin jbuilder that is) === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html
Re: JSP and MS Acces97
It depends on what kind of drivers you want to use. You can use one of the four types available, but the easiest for you (for the beginning) would be to use type 1 drives (jdbc:odbc bridge). After you make it work and run I would recommend to migrate to either type 3 or four drivers, according to how large and scalable your application should be... I have to add here that you might have to pay some money in order to obtain any other drivers apart from the odbc:jdbc ones... In order to use the jdbc:odbc drivers you have to do: Class.forName(sun.jdbc.odbc.JdbcOdbcDriver); This will load the drivers. In orde to conenct to the database you can use: Connection con = DriverManager.getConnection(jdbc:odbc: database source name, username, password); The database source name is the name of your ODBC data source. You have to define one by doing (on Windows 2000) Start...Settings... Control Panel...Administrative Tools...Data Sources(ODBC)Add... and so on... By using type 4 drivers you conenct straight to a specific database. I would recommend this approach as it is faster (with ODBC you have to translate each call to ODBC specific commands) and easier (with ODBC you have to configure the ODBC bridge for every machine you want to use). The only drawback istaht you have to find some kind of drivers. I am using the TDS drivers by I-net software (unfortunatelly there do not come for free) and all I am doing to conenct is a Class.forName(com.inet.tds.TdsDriver); to just load the drivers. Then Connection connection = DriverManager.getConnection(jdbc:inetdae:my server, e.g. localhost:1433?database=my database name, i.e. Access name, username, password); Hope this helps... 15/01/2002 04:59:57, Wilson E. Lozano R. [EMAIL PROTECTED] wrote: Hi Panagiostis, thanks for your help, Well but where can i find o how can i load the drivers? i don't understod when you write class.forName(the whole path of the drivers here); an the data base is host in the same PC, remembre ithe plataform is win98. Can you send me an example please? --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas --- On Tue, 15 Jan 2002, Panagiotis Konstantinidis wrote: First of all you need to load the drivers. To do that you need: Class.forName(the whole path of the drivers here); After that the only thing you have to do is to open a connection with the speciffic DB server Connection con = DriverManager.getConnection(url of your database server, username- optional, password - optional); After that you can communicate with the server by just sending SQL statements. 15/01/2002 04:26:17, Wilson E. Lozano R. [EMAIL PROTECTED] wrote: Hi panos, thanks for your help. Hi everybody, i'm running tomcat4.0 with jdk1.3.1_02 in win 98. Bun now i need know how can i do to make a connection win a data base in Microsoft acces 97 trought any web page into my web site soported with tomcat 4.0. thanks in advanced. --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas Universidad Industrial de Santander --- On Mon, 14 Jan 2002, panos periorellis wrote: If you're doing this from DOS it should work Note that one of the directories inside the set catalina_home=c:\tcat\jakarta-tomcat-4.0\ should be bin lib etc in other words our directory should point to those so if there is another directory inside jakarta-tomcat-4.0 before the bin and lib directories then set the path to that the other thing i thought of is that the jakarta-tomcat-4.0 directory name is a bit long...I remember i had to shorten mine I have renamed it as jak.. take care panos - Original Message - From: Wilson E. Lozano R. [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, January 14, 2002 09:38 Subject: Re: TOMCAT4.0 + win98 help!!! Hi Panos, Thanks but i was do it, however i don't use jrun in this version of tomcat the variable isn't tomcat_home, is catalina_home, and i does set catalina_home=c:\tcat\jakarta-tomcat-4.0\ and i use jsdk and java_home=c:\jsdk1.3.1_02\ and my problem don't stop. ?? Thanks in advanced. --- Wilson Ernesto Lozano RolOn Ingeniero de Sistemas Universidad Industrial de Santander --- On Mon, 14 Jan 2002, panos periorellis wrote: you have to set the variables from DOS. i.e. set TOMCAT_HOME=c:\tomcat\jak\jak (this is on my machine ...replace with the direcotyr on yours. set JAVA_HOME=c:\jbuilder\jdk1.3 (if you rin jbuilder that is) === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST.
Utilizing EVAL_BODY_AGAIN in A Tag class from Forte for JAVA 3.0 Community Ed.
Please could some on offer assistance to
executing the following code within the environment
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
public class myTagClass extends TagSupport {
String name = ;
public void setName() {
}
public String getName() {
return name;
}
public int doStartTag throws JspException {
return EVAL_BODY_INCLUDE;
}
public int doAfterBody throws JspException {
try {
JspWriter out = pageContext.getOut();
out.print();
} catch(Exception ioex) {
throw new JspExcetion(ioex.getMessage());
}
rtnValue = SKIP_BODY;
if (!isComplete) {
rtnValue = EVAL_BODY_AGAIN;
}
return rtnValue;
}
}
When I attempt to compile the code in forte4j 3.0 I receive a
compilation error
stating that it can not resolve EVAL_BODY_AGAIN.
Incidentally, this option does not appear when you attampt a code look
up using CNTRL + SPACEBAR
Do I need to attach tomcat 4.0? to the IDE Howo do I acheive this.?
Any clues?
Thanks,
Paul Idusogie
Technical Architect
Consulting Services
Stellent Inc.
Golden Triangle Drive
Eden Prairie, MN 55104
Desk: 952.656.2755
Fax: 952.903.2115
Email: [EMAIL PROTECTED]
website: http://www.stellent.com
==To
unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST.
For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST.
Some relevant FAQs on JSP/Servlets can be found at:
http://archives.java.sun.com/jsp-interest.html
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.jsp
http://www.jguru.com/faq/index.jsp
http://www.jspinsider.com
Re: Utilizing EVAL_BODY_AGAIN in A Tag class from Forte for JAVA 3.0 Community Ed.
Paul Idusogie wrote:
Please could some on offer assistance to
executing the following code within the environment
[...]
if (!isComplete) {
rtnValue = EVAL_BODY_AGAIN;
}
[...]
When I attempt to compile the code in forte4j 3.0 I receive a
compilation error
stating that it can not resolve EVAL_BODY_AGAIN.
Incidentally, this option does not appear when you attampt a code look
up using CNTRL + SPACEBAR
Do I need to attach tomcat 4.0? to the IDE Howo do I acheive this.?
Any clues?
The EVAL_BODY_AGAIN constant was added in JSP 1.2. You can either
upgrade your environment to JSP 1.2 (e.g. using Tomcat 4) or use
stick to JSP 1.1 and use the corresponding constant available in
JSP 1.1: EVAL_BODY_TAG.
Hans
--
Hans Bergsten [EMAIL PROTECTED]
Gefion Software http://www.gefionsoftware.com
Author of JavaServer Pages (O'Reilly), http://TheJSPBook.com
===
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For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST.
Some relevant FAQs on JSP/Servlets can be found at:
http://archives.java.sun.com/jsp-interest.html
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.jsp
http://www.jguru.com/faq/index.jsp
http://www.jspinsider.com
Importing my Own class
I rent space on a commercial Tomcat JSP-Enabled server. I have a JSP page in the directory /usr50/home/mgardne/public_html/jsp/pictures.jsp I have a Class file in the directory /usr50/home/mgardne/public_html/servlets/ScrapBook.class The ScrapBook class is not part of any package. I would like to import the ScrapBook class into my JSP code so that I can instantiate objects of that type. In the Archives someone stated that you could import a class file by using the actual path like this %@ page import=/usr50/home/mgardne/public_html/servlets/ScrapBook % but when I tried to run that code I got an error. My web host provider generally doesn't let me change class path settings, or put my own classes in the class path, so I was wondering if there was a direct way of telling the JSP engine where my class file is located. --Monte Glenn Gardner === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Downloading files with jsp/servlets...
but why does the synchronousity prevent simultaneous download? The output stream gets declared and obtained inside service() method, doesn't it? and if so, as any other local variable/object, it gets duplicated for each and every one of the threads that invokes that servlet instance, so there isn't a common monitor that locks other requests/ Am I missing something here? Could you please explain that matter? zm. -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Brian Bohnet Sent: Tuesday, January 15, 2002 12:40 AM To: [EMAIL PROTECTED] Subject: Re: Downloading files with jsp/servlets... Joe Cheng wrote: Can you post the servlet code? What servlet container are you using (WebLogic, Tomcat...?) The servlet should absolutely be able to handle two simultaneous requests, unless your service method is synchronized. === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com Well we have figured out a solution. Since the BufferedOutputStream is synchronized, only one request had access to the file object at one time so, we wrote a new class that is very similar to BufferedOutputStream. This new class relies on the operating system to delegate bandwidth and thread the simultaneous processes for the same file, allowing asynchronous downloads from the same servlet. The servlet passes the responsibility on to the new class to handle the reading/writing of the file contents. Also, during testing we had 5 requests for the same file occur, and all five began and ended downloading a 56M file within seconds of each other and all with equally balanced bandwidth on Dell servers running linux7.1 using Apache/Tomcat configuration. Thanks for your response. Brian === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Importing my Own class
I love you. === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Importing my Own class
1. place the class file insode your WEB-INF/clasess directory, not public_html 2. import statements refer to a fully qualified class name, not a file name with path and everything. 3. there should be a compliance between a package name and directory structure. For example, if your class is a part of a package called mypackage, then it should reside inside directory WEB-INF/clases/mypackage, and you should use import=mypackage.ScrapBook. Besides, Weblogic 5.1 does not allow using JavaBeans from within a JSP that belong to the default package. This might be a bug or a spec dictation (stranger things have been recorded), so you may consider using a package for your class. zm. -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Gardner Monte Sent: Tuesday, January 15, 2002 9:59 PM To: [EMAIL PROTECTED] Subject: Importing my Own class I rent space on a commercial Tomcat JSP-Enabled server. I have a JSP page in the directory /usr50/home/mgardne/public_html/jsp/pictures.jsp I have a Class file in the directory /usr50/home/mgardne/public_html/servlets/ScrapBook.class The ScrapBook class is not part of any package. I would like to import the ScrapBook class into my JSP code so that I can instantiate objects of that type. In the Archives someone stated that you could import a class file by using the actual path like this %@ page import=/usr50/home/mgardne/public_html/servlets/ScrapBook % but when I tried to run that code I got an error. My web host provider generally doesn't let me change class path settings, or put my own classes in the class path, so I was wondering if there was a direct way of telling the JSP engine where my class file is located. --Monte Glenn Gardner === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Downloading files with jsp/servlets...
Zvika, The default behavior for servlets is to have a *single* servlet instance serve all incoming requests for that servlet, simultaneously. In other words, it's not that each incoming request instantiates your servlet; on the contrary, the servlet only gets instantiated once in the lifetime of your webserver (well, more or less). That's why it's a bad idea to declare member data fields for servlets; you may as well be declaring static fields, because that's effectively what you're doing. Same thing with declaring variables in %! % blocks in JSP. The exception is if you implement SingleThreadModel, which guarantees that a single instance of a servlet will not be serving two requests simultaneously; the spec doesn't make it clear whether that happens via synchronization, or whether multiple instance get created. http://java.sun.com/docs/books/tutorial/servlets/client-interaction/threads. html Hope that helps clear it up a little. -jmc === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Downloading files with jsp/servlets...
Well, Zvika, according to my team, the file requested for download was being locked by using BufferedOutputStream(being synchronized by default), so any other requests for that file were not allowed until the previous request was finished reading/writing to buffer. Hope that helps, Brian Zvika Markfeld wrote: but why does the synchronousity prevent simultaneous download? The output stream gets declared and obtained inside service() method, doesn't it? and if so, as any other local variable/object, it gets duplicated for each and every one of the threads that invokes that servlet instance, so there isn't a common monitor that locks other requests/ Am I missing something here? Could you please explain that matter? zm. -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Brian Bohnet Sent: Tuesday, January 15, 2002 12:40 AM To: [EMAIL PROTECTED] Subject: Re: Downloading files with jsp/servlets... Joe Cheng wrote: Can you post the servlet code? What servlet container are you using (WebLogic, Tomcat...?) The servlet should absolutely be able to handle two simultaneous requests, unless your service method is synchronized. === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com Well we have figured out a solution. Since the BufferedOutputStream is synchronized, only one request had access to the file object at one time so, we wrote a new class that is very similar to BufferedOutputStream. This new class relies on the operating system to delegate bandwidth and thread the simultaneous processes for the same file, allowing asynchronous downloads from the same servlet. The servlet passes the responsibility on to the new class to handle the reading/writing of the file contents. Also, during testing we had 5 requests for the same file occur, and all five began and ended downloading a 56M file within seconds of each other and all with equally balanced bandwidth on Dell servers running linux7.1 using Apache/Tomcat configuration. Thanks for your response. Brian === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Downloading files with jsp/servlets...
Joe, Isn't the default behavior for servlets determined by the webserver you are using? Some servers do have a single servlet instance per all users, but I know the previous version of JRUN server (3.01) instantiated a new copy of the servlet for every new/unique session id. I don't know about the new version of JRUN server (3.1). I did look at the Sun page you reference below, but it did not reference the page where the Sun standard for servlet behavior is spelled out. Celete -Original Message- From: Joe Cheng [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 15, 2002 3:39 PM To: [EMAIL PROTECTED] Subject: Re: Downloading files with jsp/servlets... Zvika, The default behavior for servlets is to have a *single* servlet instance serve all incoming requests for that servlet, simultaneously. In other words, it's not that each incoming request instantiates your servlet; on the contrary, the servlet only gets instantiated once in the lifetime of your webserver (well, more or less). That's why it's a bad idea to declare member data fields for servlets; you may as well be declaring static fields, because that's effectively what you're doing. Same thing with declaring variables in %! % blocks in JSP. The exception is if you implement SingleThreadModel, which guarantees that a single instance of a servlet will not be serving two requests simultaneously; the spec doesn't make it clear whether that happens via synchronization, or whether multiple instance get created. http://java.sun.com/docs/books/tutorial/servlets/client-interaction/threads. html Hope that helps clear it up a little. -jmc === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
execute java code with out command view and another thing!!!
Hi All Well ... i have two big problems... First, i need execute some java code.. which will be used like a screensaver, but i would like that commander view doesnt appear, because it looks very bad... how can i do that? Second, this screensaver appears by times, so when the screensaver appears, this wont dissapear until the estimated time finished. how can i do for banned that user cant close the window or the screensaver.. it screensaver can be developed by applet or application. thanks for all atte Christian === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Downloading files with jsp/servlets...
to Brian: okay, I think I see what you mean: The BufferedOutputStream is able to read a file only when the file is not being read by any other BufferedOutputStream object at the same time. Generally speaking, when saying an object is synchronized, it usually means that when two threads are trying to invoke this object's methods simultaneously, one thread has to wait untill the other is done - which is not the case here, as two different BufferedOutputStream objects or more are used simultaneously. It is the file itself which is synchronized. get my drift? to Joe: I'm afraid we're having somewhat of deaf people's conversation here. Read Brian's original post and his response and see what I mean. Thanks for the through explanation anyway... zm. -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Brian Bohnet Sent: Tuesday, January 15, 2002 11:38 PM To: [EMAIL PROTECTED] Subject: Re: Downloading files with jsp/servlets... Well, Zvika, according to my team, the file requested for download was being locked by using BufferedOutputStream(being synchronized by default), so any other requests for that file were not allowed until the previous request was finished reading/writing to buffer. Hope that helps, Brian Zvika Markfeld wrote: but why does the synchronousity prevent simultaneous download? The output stream gets declared and obtained inside service() method, doesn't it? and if so, as any other local variable/object, it gets duplicated for each and every one of the threads that invokes that servlet instance, so there isn't a common monitor that locks other requests/ Am I missing something here? Could you please explain that matter? zm. -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Brian Bohnet Sent: Tuesday, January 15, 2002 12:40 AM To: [EMAIL PROTECTED] Subject: Re: Downloading files with jsp/servlets... Joe Cheng wrote: Can you post the servlet code? What servlet container are you using (WebLogic, Tomcat...?) The servlet should absolutely be able to handle two simultaneous requests, unless your service method is synchronized. === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com Well we have figured out a solution. Since the BufferedOutputStream is synchronized, only one request had access to the file object at one time so, we wrote a new class that is very similar to BufferedOutputStream. This new class relies on the operating system to delegate bandwidth and thread the simultaneous processes for the same file, allowing asynchronous downloads from the same servlet. The servlet passes the responsibility on to the new class to handle the reading/writing of the file contents. Also, during testing we had 5 requests for the same file occur, and all five began and ended downloading a 56M file within seconds of each other and all with equally balanced bandwidth on Dell servers running linux7.1 using Apache/Tomcat configuration. Thanks for your response. Brian === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp
Re: Downloading files with jsp/servlets...
That would be a no: The servlet spec. specifically dictates that a servlet container instantiates _only_ one instance of a given servlet, unless the servlet implements the SingleThreadModel interface, as Joe suggested. In that case, the servlet container can either queue incoming requests or create multiple servlet instances. This decision is left to the servlet container's manufacturer. Some Web servers have problems keeping the spec. Orion, for example, had (may still have) this bug where multiple instances of a servlet were created when the servlet's first invocation was made by a numerous clients, as in when bombing the servlet with some stress test tool (which is what we did). I don't know of anything about JRUN. zm. -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Haseltine, Celeste Sent: Wednesday, January 16, 2002 12:03 AM To: [EMAIL PROTECTED] Subject: Re: Downloading files with jsp/servlets... Joe, Isn't the default behavior for servlets determined by the webserver you are using? Some servers do have a single servlet instance per all users, but I know the previous version of JRUN server (3.01) instantiated a new copy of the servlet for every new/unique session id. I don't know about the new version of JRUN server (3.1). I did look at the Sun page you reference below, but it did not reference the page where the Sun standard for servlet behavior is spelled out. Celete -Original Message- From: Joe Cheng [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 15, 2002 3:39 PM To: [EMAIL PROTECTED] Subject: Re: Downloading files with jsp/servlets... Zvika, The default behavior for servlets is to have a *single* servlet instance serve all incoming requests for that servlet, simultaneously. In other words, it's not that each incoming request instantiates your servlet; on the contrary, the servlet only gets instantiated once in the lifetime of your webserver (well, more or less). That's why it's a bad idea to declare member data fields for servlets; you may as well be declaring static fields, because that's effectively what you're doing. Same thing with declaring variables in %! % blocks in JSP. The exception is if you implement SingleThreadModel, which guarantees that a single instance of a servlet will not be serving two requests simultaneously; the spec doesn't make it clear whether that happens via synchronization, or whether multiple instance get created. http://java.sun.com/docs/books/tutorial/servlets/client-interaction/threads. html Hope that helps clear it up a little. -jmc === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Downloading files with jsp/servlets...
Zvika, OK, so the spec does dictate how many instances of a given servlet is instantiated. This may be why JRUN 3.1 is now Sun certified as a compliant JSP/EJB container, where as the previous version (3.01) was not. Thanks for the clarification. Celeste -Original Message- From: Zvika Markfeld [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 15, 2002 4:10 PM To: [EMAIL PROTECTED] Subject: Re: Downloading files with jsp/servlets... That would be a no: The servlet spec. specifically dictates that a servlet container instantiates _only_ one instance of a given servlet, unless the servlet implements the SingleThreadModel interface, as Joe suggested. In that case, the servlet container can either queue incoming requests or create multiple servlet instances. This decision is left to the servlet container's manufacturer. Some Web servers have problems keeping the spec. Orion, for example, had (may still have) this bug where multiple instances of a servlet were created when the servlet's first invocation was made by a numerous clients, as in when bombing the servlet with some stress test tool (which is what we did). I don't know of anything about JRUN. zm. -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Haseltine, Celeste Sent: Wednesday, January 16, 2002 12:03 AM To: [EMAIL PROTECTED] Subject: Re: Downloading files with jsp/servlets... Joe, Isn't the default behavior for servlets determined by the webserver you are using? Some servers do have a single servlet instance per all users, but I know the previous version of JRUN server (3.01) instantiated a new copy of the servlet for every new/unique session id. I don't know about the new version of JRUN server (3.1). I did look at the Sun page you reference below, but it did not reference the page where the Sun standard for servlet behavior is spelled out. Celete -Original Message- From: Joe Cheng [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 15, 2002 3:39 PM To: [EMAIL PROTECTED] Subject: Re: Downloading files with jsp/servlets... Zvika, The default behavior for servlets is to have a *single* servlet instance serve all incoming requests for that servlet, simultaneously. In other words, it's not that each incoming request instantiates your servlet; on the contrary, the servlet only gets instantiated once in the lifetime of your webserver (well, more or less). That's why it's a bad idea to declare member data fields for servlets; you may as well be declaring static fields, because that's effectively what you're doing. Same thing with declaring variables in %! % blocks in JSP. The exception is if you implement SingleThreadModel, which guarantees that a single instance of a servlet will not be serving two requests simultaneously; the spec doesn't make it clear whether that happens via synchronization, or whether multiple instance get created. http://java.sun.com/docs/books/tutorial/servlets/client-interaction/threads. html Hope that helps clear it up a little. -jmc === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
MSACCESS JSP SOLUTION
OK fellas for once and for all
if you have a an access database and you want to connect it with JAVA or JSP
you do the following
go to control panel and open ODBC data sourceclick on tab user DSN
click on MS access and click on Add
Select MS access again Click Finish...i will aks for a datasource name
Give it a name...such as 'phonedirectory' and then Click on Select button
and select your msaccess database in your directory example phonebook.mdb
NOW you have a data source connected to your access database ...
NOw in your JSP or JAVA program write the follogin code..
try {
Class.forName( sun.jdbc.odbc.JdbcOdbcDriver );
Connection con =
DriverManager.getConnection(jdbc:odbc:phonedirectory);
String sql = SELECT * FROM phonenumbers;; // this is an example of a
table inside the phonebook ms access database
System.out.println( set the SQL);
Statement stmt= con.createStatement();
System.out.println( SET THE STATEMENT );
ResultSet rs=stmt.executeQuery(sql);
System.out.println( Executing SELECT query );
while (rs.next()) {
String s = rs.getString(name);
String n = rs.getString(number);
}
con.close( );
} catch( Exception e ) {
System.out.println(e);
System.exit( -1 );
}
HOPE this helps
panos
===
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Re: MSACCESS JSP SOLUTION
ok Panos.. thanks, but, then i don't need to download any jdbc:odbc drver?
??
Thanks in advanced.
---
Wilson Ernesto Lozano RolOn
Ingeniero de Sistemas
---
On Tue, 15 Jan 2002, panos periorellis wrote:
OK fellas for once and for all
if you have a an access database and you want to connect it with JAVA or JSP
you do the following
go to control panel and open ODBC data sourceclick on tab user DSN
click on MS access and click on Add
Select MS access again Click Finish...i will aks for a datasource name
Give it a name...such as 'phonedirectory' and then Click on Select button
and select your msaccess database in your directory example phonebook.mdb
NOW you have a data source connected to your access database ...
NOw in your JSP or JAVA program write the follogin code..
try {
Class.forName( sun.jdbc.odbc.JdbcOdbcDriver );
Connection con =
DriverManager.getConnection(jdbc:odbc:phonedirectory);
String sql = SELECT * FROM phonenumbers;; // this is an example of a
table inside the phonebook ms access database
System.out.println( set the SQL);
Statement stmt= con.createStatement();
System.out.println( SET THE STATEMENT );
ResultSet rs=stmt.executeQuery(sql);
System.out.println( Executing SELECT query );
while (rs.next()) {
String s = rs.getString(name);
String n = rs.getString(number);
}
con.close( );
} catch( Exception e ) {
System.out.println(e);
System.exit( -1 );
}
HOPE this helps
panos
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Re: Downloading files with jsp/servlets...
I'm afraid we're having somewhat of deaf people's conversation here. Read Brian's original post and his response and see what I mean. Zvika, I thought you were replying to my message, not Brian's response... my apologies. FWIW, I haven't looked into it but it sounds like JDK 1.4's java.nio.* package (offering non-blocking I/O operations) might resolve this issue. -jmc === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: MSACCESS JSP SOLUTION
no the driver comes with the JDK...
you dont need to download anything...do as i said and it will work..i
promise you
panos
- Original Message -
From: Wilson E. Lozano R. [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, January 15, 2002 12:41
Subject: Re: MSACCESS JSP SOLUTION
ok Panos.. thanks, but, then i don't need to download any jdbc:odbc drver?
??
Thanks in advanced.
---
Wilson Ernesto Lozano RolOn
Ingeniero de Sistemas
---
On Tue, 15 Jan 2002, panos periorellis wrote:
OK fellas for once and for all
if you have a an access database and you want to connect it with JAVA or
JSP
you do the following
go to control panel and open ODBC data sourceclick on tab user DSN
click on MS access and click on Add
Select MS access again Click Finish...i will aks for a datasource name
Give it a name...such as 'phonedirectory' and then Click on Select
button
and select your msaccess database in your directory example
phonebook.mdb
NOW you have a data source connected to your access database ...
NOw in your JSP or JAVA program write the follogin code..
try {
Class.forName( sun.jdbc.odbc.JdbcOdbcDriver );
Connection con =
DriverManager.getConnection(jdbc:odbc:phonedirectory);
String sql = SELECT * FROM phonenumbers;; // this is an example
of a
table inside the phonebook ms access database
System.out.println( set the SQL);
Statement stmt= con.createStatement();
System.out.println( SET THE STATEMENT );
ResultSet rs=stmt.executeQuery(sql);
System.out.println( Executing SELECT query );
while (rs.next()) {
String s = rs.getString(name);
String n = rs.getString(number);
}
con.close( );
} catch( Exception e ) {
System.out.println(e);
System.exit( -1 );
}
HOPE this helps
panos
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Using JNDI in a JSP/Servlet
I'm attempting to use JNDI with a third party JDBC driver inside of a
servlet. When I attempt to call the servlet, my catch block catches the
following error message:
Error . Cannot instantiate class:
com.sun.jndi.fscontext.RefFSContextFactory
I moved the code into a pure Java class for debugging. The line that the
error message occurs on is as follows:
ctx = new InitialContext(env);
Does anyone have a guess as to why I am unable to instantiate a new Context
class? I suspect it may have to do with setting permissions for jndi, but I
am not certain. I do have the JNDI.jar file in my server jvm jre\lib\ext
subdirectory, and I moved it into my jdk jre\lib\ext subdirectory for
debugging the class code. Just for grins I included the jdk jre\lib\ext
path in my dev box classpath for testing the class code. The class code is
as follows:
import java.sql.*;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.sql.DataSource;
import net.avenir.jdbcPool.*;
import java.util.Hashtable;
public class DataSourceTest{
public static void main(String[] argv){
System.out.println(got to beginning);
Context ctx =null;
System.out.println(got to 1);
try{
JDBCConnectionPoolDataSource cpds1 = new
JDBCConnectionPoolDataSource();
System.out.println(got to 2);
//cpds1.setServerName();
cpds1.setDatabaseName(Northwind);
cpds1.setPort(1433);
Hashtable env = new Hashtable(11);
System.out.println(got to 3);
env.put
(Context.INITIAL_CONTEXT_FACTORY,com.sun.jndi.fscontext.RefFSContextFactory
);
System.out.println(got to 4);
env.put(Context.PROVIDER_URL,file:/);
System.out.println(got to 5);
ctx = new InitialContext(env); //THIS IS THE LINE THE
ERROR OCCURS ON
System.out.println(got to 6);
ctx.rebind(jdbc:pool:poolDS,cpds1);
System.out.println(got to 7);
JDBCDataSource ds1=new JDBCDataSource();
ds1.setDataSourceName(jdbc:pool:poolDS);
env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,com.sun.jndi.fscontext.RefFSContext
Factory);
env.put(Context.PROVIDER_URL,file:/);
ctx = new InitialContext(env);
ctx.rebind(jdbc:datasource,ds1);
} catch(Exception e) {
System.out.println(Error . +e.getMessage());
}
}//end main
}//end class definition
Thanks in advance for any advice/suggestions.
Celeste
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Re: Downloading files with jsp/servlets...
Brian Bohnet wrote:
one of our developers decided to investigate the source
of the BufferInputStream class instead. Finding everything to be
synchronized gave him the idea to write his own class removing
synchronization, and allowing the server to handle the bandwidth and
threading, instead of relying on the single instance of the servlet.
Wait a second, there's something wrong here. Serving static
files from a servlet is a very common thing to do. Generally
the code looks something like:
public void doGet() {
...
InputStream istr =
new BufferedInputStream(new FileInputStream(some_file.txt));
... loop around writing istr to rsp output stream ...
}
Is that what you're talking about? If not, then never mind,
I've misunderstood your situation.
If so, then synchronization on BufferedInputStream is not
your problem. It can't be, since each servlet thread gets its
own BufferedInputStream. Besides, the code works fine for
everybody else.
Are you trying to share the BufferedInputStream? or the
FileInputStream? Do you have a synchronized block in some
of your servlet code? Have you accidently set your servlet
container to allow only a very few simultaneous threads?
Etc, etc.
--
Christopher St. John [EMAIL PROTECTED]
DistribuTopia http://www.distributopia.com
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Re: Using JNDI in a JSP/Servlet
the exception means that the nitialContextFactory object specified in your
env cannot be located. This might be due to the fact that your jndi.jar
contains only the interfaces that are related to jndi (that is, package
javax.naming and related packages) but not the JNDI provider classes. you
need to add to your classpath these classes, that are usually bundled with
the Naming Manager you are trying to access.
zm.
-Original Message-
From: A mailing list about Java Server Pages specification and reference
[mailto:[EMAIL PROTECTED]]On Behalf Of Haseltine, Celeste
Sent: Wednesday, January 16, 2002 1:07 AM
To: [EMAIL PROTECTED]
Subject: Using JNDI in a JSP/Servlet
I'm attempting to use JNDI with a third party JDBC driver inside of a
servlet. When I attempt to call the servlet, my catch block catches the
following error message:
Error . Cannot instantiate class:
com.sun.jndi.fscontext.RefFSContextFactory
I moved the code into a pure Java class for debugging. The line that the
error message occurs on is as follows:
ctx = new InitialContext(env);
Does anyone have a guess as to why I am unable to instantiate a new Context
class? I suspect it may have to do with setting permissions for jndi, but I
am not certain. I do have the JNDI.jar file in my server jvm jre\lib\ext
subdirectory, and I moved it into my jdk jre\lib\ext subdirectory for
debugging the class code. Just for grins I included the jdk jre\lib\ext
path in my dev box classpath for testing the class code. The class code is
as follows:
import java.sql.*;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.sql.DataSource;
import net.avenir.jdbcPool.*;
import java.util.Hashtable;
public class DataSourceTest{
public static void main(String[] argv){
System.out.println(got to beginning);
Context ctx =null;
System.out.println(got to 1);
try{
JDBCConnectionPoolDataSource cpds1 = new
JDBCConnectionPoolDataSource();
System.out.println(got to 2);
//cpds1.setServerName();
cpds1.setDatabaseName(Northwind);
cpds1.setPort(1433);
Hashtable env = new Hashtable(11);
System.out.println(got to 3);
env.put
(Context.INITIAL_CONTEXT_FACTORY,com.sun.jndi.fscontext.RefFSContextFactory
);
System.out.println(got to 4);
env.put(Context.PROVIDER_URL,file:/);
System.out.println(got to 5);
ctx = new InitialContext(env); //THIS IS THE LINE THE
ERROR OCCURS ON
System.out.println(got to 6);
ctx.rebind(jdbc:pool:poolDS,cpds1);
System.out.println(got to 7);
JDBCDataSource ds1=new JDBCDataSource();
ds1.setDataSourceName(jdbc:pool:poolDS);
env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,com.sun.jndi.fscontext.RefFSContext
Factory);
env.put(Context.PROVIDER_URL,file:/);
ctx = new InitialContext(env);
ctx.rebind(jdbc:datasource,ds1);
} catch(Exception e) {
System.out.println(Error . +e.getMessage());
}
}//end main
}//end class definition
Thanks in advance for any advice/suggestions.
Celeste
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Re: Downloading files with jsp/servlets...
that's exactly what I thought, but apparently Brian meant that two
BufferedInputStream objects cannot access the same file simultaneously.
Meaning, it is the file that is actually synched, not the Stream object...
zm.
-Original Message-
From: A mailing list about Java Server Pages specification and reference
[mailto:[EMAIL PROTECTED]]On Behalf Of Christopher K. St. John
Sent: Wednesday, January 16, 2002 2:26 AM
To: [EMAIL PROTECTED]
Subject: Re: Downloading files with jsp/servlets...
Brian Bohnet wrote:
one of our developers decided to investigate the source
of the BufferInputStream class instead. Finding everything to be
synchronized gave him the idea to write his own class removing
synchronization, and allowing the server to handle the bandwidth and
threading, instead of relying on the single instance of the servlet.
Wait a second, there's something wrong here. Serving static
files from a servlet is a very common thing to do. Generally
the code looks something like:
public void doGet() {
...
InputStream istr =
new BufferedInputStream(new FileInputStream(some_file.txt));
... loop around writing istr to rsp output stream ...
}
Is that what you're talking about? If not, then never mind,
I've misunderstood your situation.
If so, then synchronization on BufferedInputStream is not
your problem. It can't be, since each servlet thread gets its
own BufferedInputStream. Besides, the code works fine for
everybody else.
Are you trying to share the BufferedInputStream? or the
FileInputStream? Do you have a synchronized block in some
of your servlet code? Have you accidently set your servlet
container to allow only a very few simultaneous threads?
Etc, etc.
--
Christopher St. John [EMAIL PROTECTED]
DistribuTopia http://www.distributopia.com
===
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Re: Downloading files with jsp/servlets...
Zvika Markfeld wrote: apparently Brian meant that two BufferedInputStream objects cannot access the same file simultaneously. Meaning, it is the file that is actually synched, not the Stream object... I'd have to re-read the whole thread in detail to be sure, but I don't think that makes sense. I mean, if that were true, then there would be no way to fix it by using a non-synchronized BufferedInputStream, right? And anyway, he said he was using Linux on a x86 box. I use Linux as one of my dev platforms, and unless he's using some really bizarre JVM, then I can guarantee you it doesn't work that way. I suspect he was hitting random variations in how his threads were getting scheduled, resulting in one thread briefly getting most of the bandwidth. Or maybe they were running one set of tests with native threads, and another with green threads. There's not really enough data to draw a conclusion. But it wasn't a problem with BufferedInputStream. -- Christopher St. John [EMAIL PROTECTED] DistribuTopia http://www.distributopia.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Importing my Own class
I read your message about importing classes and copied all my classes in th WEB-INF directory.. MY JSP compiles now and i can make instances of my classes... However when i try to reference attributes in those classes it produces an error why do you think that may be? this is my code html head titleResults/title /head body %@ page import=travel_agent.*; % // this is a directory with classes which exists in WEB-INF so I guess this line is fine % Accomodation ac= new Accomodation; % // this is a class in the travel_agent directory %! ac.HotelName=one; % // this line produces an error it says that is cannot be referenced. input type=text name=T2 size=20 value=%= ac.HotelName % /body /html - Original Message - From: Zvika Markfeld [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 15, 2002 20:16 Subject: Re: Importing my Own class 1. place the class file insode your WEB-INF/clasess directory, not public_html 2. import statements refer to a fully qualified class name, not a file name with path and everything. 3. there should be a compliance between a package name and directory structure. For example, if your class is a part of a package called mypackage, then it should reside inside directory WEB-INF/clases/mypackage, and you should use import=mypackage.ScrapBook. Besides, Weblogic 5.1 does not allow using JavaBeans from within a JSP that belong to the default package. This might be a bug or a spec dictation (stranger things have been recorded), so you may consider using a package for your class. zm. -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Gardner Monte Sent: Tuesday, January 15, 2002 9:59 PM To: [EMAIL PROTECTED] Subject: Importing my Own class I rent space on a commercial Tomcat JSP-Enabled server. I have a JSP page in the directory /usr50/home/mgardne/public_html/jsp/pictures.jsp I have a Class file in the directory /usr50/home/mgardne/public_html/servlets/ScrapBook.class The ScrapBook class is not part of any package. I would like to import the ScrapBook class into my JSP code so that I can instantiate objects of that type. In the Archives someone stated that you could import a class file by using the actual path like this %@ page import=/usr50/home/mgardne/public_html/servlets/ScrapBook % but when I tried to run that code I got an error. My web host provider generally doesn't let me change class path settings, or put my own classes in the class path, so I was wondering if there was a direct way of telling the JSP engine where my class file is located. --Monte Glenn Gardner === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Importing my Own class
It seems like you are declaring your Accomodation object in a scriptlet (% ... %) and trying to assign values to it in a declaration(%! ... %) . Which means you should probably change the declaration to a scriptlet as well. Keep in mind that scriptlets are inserted into the service() method and declarations are inserted into the generated servlet's class but outside the service method. zm. -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of panos periorellis Sent: Wednesday, January 16, 2002 2:00 AM To: [EMAIL PROTECTED] Subject: Re: Importing my Own class I read your message about importing classes and copied all my classes in th WEB-INF directory.. MY JSP compiles now and i can make instances of my classes... However when i try to reference attributes in those classes it produces an error why do you think that may be? this is my code html head titleResults/title /head body %@ page import=travel_agent.*; % // this is a directory with classes which exists in WEB-INF so I guess this line is fine % Accomodation ac= new Accomodation; % // this is a class in the travel_agent directory %! ac.HotelName=one; % // this line produces an error it says that is cannot be referenced. input type=text name=T2 size=20 value=%= ac.HotelName % /body /html - Original Message - From: Zvika Markfeld [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 15, 2002 20:16 Subject: Re: Importing my Own class 1. place the class file insode your WEB-INF/clasess directory, not public_html 2. import statements refer to a fully qualified class name, not a file name with path and everything. 3. there should be a compliance between a package name and directory structure. For example, if your class is a part of a package called mypackage, then it should reside inside directory WEB-INF/clases/mypackage, and you should use import=mypackage.ScrapBook. Besides, Weblogic 5.1 does not allow using JavaBeans from within a JSP that belong to the default package. This might be a bug or a spec dictation (stranger things have been recorded), so you may consider using a package for your class. zm. -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Gardner Monte Sent: Tuesday, January 15, 2002 9:59 PM To: [EMAIL PROTECTED] Subject: Importing my Own class I rent space on a commercial Tomcat JSP-Enabled server. I have a JSP page in the directory /usr50/home/mgardne/public_html/jsp/pictures.jsp I have a Class file in the directory /usr50/home/mgardne/public_html/servlets/ScrapBook.class The ScrapBook class is not part of any package. I would like to import the ScrapBook class into my JSP code so that I can instantiate objects of that type. In the Archives someone stated that you could import a class file by using the actual path like this %@ page import=/usr50/home/mgardne/public_html/servlets/ScrapBook % but when I tried to run that code I got an error. My web host provider generally doesn't let me change class path settings, or put my own classes in the class path, so I was wondering if there was a direct way of telling the JSP engine where my class file is located. --Monte Glenn Gardner === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with
Re: Using JNDI in a JSP/Servlet
Zvika,
When you mention Java provider classes, are you referring to classes that
should be in my third party driver's jar file? The only jndi jar file I
have in my classpath is the one included in the JDK from Sun. The test
servlet I was using came out of the vendors examples files that they ship
with the driver. They are pretty much incomplete, so if this is an error
being thrown from the vendors jar file, I'll post this with their tech
support group. Or are you referring to something else?
Celeste
-Original Message-
From: Zvika Markfeld [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, January 15, 2002 5:29 PM
To: [EMAIL PROTECTED]
Subject: Re: Using JNDI in a JSP/Servlet
the exception means that the nitialContextFactory object specified in your
env cannot be located. This might be due to the fact that your jndi.jar
contains only the interfaces that are related to jndi (that is, package
javax.naming and related packages) but not the JNDI provider classes. you
need to add to your classpath these classes, that are usually bundled with
the Naming Manager you are trying to access.
zm.
-Original Message-
From: A mailing list about Java Server Pages specification and reference
[mailto:[EMAIL PROTECTED]]On Behalf Of Haseltine, Celeste
Sent: Wednesday, January 16, 2002 1:07 AM
To: [EMAIL PROTECTED]
Subject: Using JNDI in a JSP/Servlet
I'm attempting to use JNDI with a third party JDBC driver inside of a
servlet. When I attempt to call the servlet, my catch block catches the
following error message:
Error . Cannot instantiate class:
com.sun.jndi.fscontext.RefFSContextFactory
I moved the code into a pure Java class for debugging. The line that the
error message occurs on is as follows:
ctx = new InitialContext(env);
Does anyone have a guess as to why I am unable to instantiate a new Context
class? I suspect it may have to do with setting permissions for jndi, but I
am not certain. I do have the JNDI.jar file in my server jvm jre\lib\ext
subdirectory, and I moved it into my jdk jre\lib\ext subdirectory for
debugging the class code. Just for grins I included the jdk jre\lib\ext
path in my dev box classpath for testing the class code. The class code is
as follows:
import java.sql.*;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.sql.DataSource;
import net.avenir.jdbcPool.*;
import java.util.Hashtable;
public class DataSourceTest{
public static void main(String[] argv){
System.out.println(got to beginning);
Context ctx =null;
System.out.println(got to 1);
try{
JDBCConnectionPoolDataSource cpds1 = new
JDBCConnectionPoolDataSource();
System.out.println(got to 2);
//cpds1.setServerName();
cpds1.setDatabaseName(Northwind);
cpds1.setPort(1433);
Hashtable env = new Hashtable(11);
System.out.println(got to 3);
env.put
(Context.INITIAL_CONTEXT_FACTORY,com.sun.jndi.fscontext.RefFSContextFactory
);
System.out.println(got to 4);
env.put(Context.PROVIDER_URL,file:/);
System.out.println(got to 5);
ctx = new InitialContext(env); //THIS IS THE LINE THE
ERROR OCCURS ON
System.out.println(got to 6);
ctx.rebind(jdbc:pool:poolDS,cpds1);
System.out.println(got to 7);
JDBCDataSource ds1=new JDBCDataSource();
ds1.setDataSourceName(jdbc:pool:poolDS);
env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,com.sun.jndi.fscontext.RefFSContext
Factory);
env.put(Context.PROVIDER_URL,file:/);
ctx = new InitialContext(env);
ctx.rebind(jdbc:datasource,ds1);
} catch(Exception e) {
System.out.println(Error . +e.getMessage());
}
}//end main
}//end class definition
Thanks in advance for any advice/suggestions.
Celeste
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Re: Downloading files with jsp/servlets...
gotcha. that does sound strange. I just wrote a little program to test that and found out that's also true for Windowz. no probs reading same file simultaneously using two BufferedInputStream objects. strange, huh? zm. -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Christopher K. St. John Sent: Wednesday, January 16, 2002 2:50 AM To: [EMAIL PROTECTED] Subject: Re: Downloading files with jsp/servlets... Zvika Markfeld wrote: apparently Brian meant that two BufferedInputStream objects cannot access the same file simultaneously. Meaning, it is the file that is actually synched, not the Stream object... I'd have to re-read the whole thread in detail to be sure, but I don't think that makes sense. I mean, if that were true, then there would be no way to fix it by using a non-synchronized BufferedInputStream, right? And anyway, he said he was using Linux on a x86 box. I use Linux as one of my dev platforms, and unless he's using some really bizarre JVM, then I can guarantee you it doesn't work that way. I suspect he was hitting random variations in how his threads were getting scheduled, resulting in one thread briefly getting most of the bandwidth. Or maybe they were running one set of tests with native threads, and another with green threads. There's not really enough data to draw a conclusion. But it wasn't a problem with BufferedInputStream. -- Christopher St. John [EMAIL PROTECTED] DistribuTopia http://www.distributopia.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Importing my Own class
Unfortunately, your syntax is a bit off. Try this: html head titleResults/title %@ page import=travel_agent.* % /head body % Accomodation ac= new Accomodation(); % % ac.HotelName = one; % input type=text name=T2 size=20 value=%= ac.HotelName % /body /html (*Chris*) - Original Message - From: panos periorellis [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 15, 2002 3:59 PM Subject: Re: [JSP-INTEREST] Importing my Own class I read your message about importing classes and copied all my classes in th WEB-INF directory.. MY JSP compiles now and i can make instances of my classes... However when i try to reference attributes in those classes it produces an error why do you think that may be? this is my code html head titleResults/title /head body %@ page import=travel_agent.*; % // this is a directory with classes which exists in WEB-INF so I guess this line is fine % Accomodation ac= new Accomodation; % // this is a class in the travel_agent directory %! ac.HotelName=one; % // this line produces an error it says that is cannot be referenced. input type=text name=T2 size=20 value=%= ac.HotelName % /body /html - Original Message - From: Zvika Markfeld [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 15, 2002 20:16 Subject: Re: Importing my Own class 1. place the class file insode your WEB-INF/clasess directory, not public_html 2. import statements refer to a fully qualified class name, not a file name with path and everything. 3. there should be a compliance between a package name and directory structure. For example, if your class is a part of a package called mypackage, then it should reside inside directory WEB-INF/clases/mypackage, and you should use import=mypackage.ScrapBook. Besides, Weblogic 5.1 does not allow using JavaBeans from within a JSP that belong to the default package. This might be a bug or a spec dictation (stranger things have been recorded), so you may consider using a package for your class. zm. -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Gardner Monte Sent: Tuesday, January 15, 2002 9:59 PM To: [EMAIL PROTECTED] Subject: Importing my Own class I rent space on a commercial Tomcat JSP-Enabled server. I have a JSP page in the directory /usr50/home/mgardne/public_html/jsp/pictures.jsp I have a Class file in the directory /usr50/home/mgardne/public_html/servlets/ScrapBook.class The ScrapBook class is not part of any package. I would like to import the ScrapBook class into my JSP code so that I can instantiate objects of that type. In the Archives someone stated that you could import a class file by using the actual path like this %@ page import=/usr50/home/mgardne/public_html/servlets/ScrapBook % but when I tried to run that code I got an error. My web host provider generally doesn't let me change class path settings, or put my own classes in the class path, so I was wondering if there was a direct way of telling the JSP engine where my class file is located. --Monte Glenn Gardner === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com === To unsubscribe: mailto [EMAIL
Re: Importing classes
It is not important to jar the package. What is important is that the classes should be located in WEB-INF\classes\PackageName folder. Just put all your classes over there and things will work. --- Ramaswamy, Rathnapriya (CORP, GTS, L531741) [EMAIL PROTECTED] wrote: Why don't you jar the package and add it to the classpath -Original Message- From: panos periorellis [mailto:[EMAIL PROTECTED]] Sent: Monday, January 14, 2002 9:29 PM To: [EMAIL PROTECTED] Subject: Importing classes I have developed some java classes which i want to import in my JSP code.. can somebody tell me how do i do this. i have a list of classes in a package called travel but this %@ page import=travel.* % produces errors. In fact it says that the package cannot be found? Anyone with similar problems? thanks P === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com THIS E-MAIL MESSAGE ALONG WITH ANY ATTACHMENTS IS INTENDED ONLY FOR THE ADDRESSEE and may contain confidential and privileged information. If the reader of this message is not the intended recipient, you are notified that any dissemination, distribution or copy of this communication is strictly Prohibited. If you have received this message by error, please notify us immediately, return the original mail to the sender and delete the message from your system. === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com __ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Problem with IBM Websphere Application Server 4
There could be two reasons for this: 1. Access/Security permissions - Check if you are member of the group having permission to run the server etc. 2. Some other web server/application server may be running and listening on the same port. So, the port is not free for the server to listen to and thus start properly. le --- Debopam Ghoshal [EMAIL PROTECTED] wrote: Dear All, I recently installed IBM Websphere Application Server 4 along with IBM HTTP Server. The HTTP server starts automatically when my machine starts(OS: Windows 2000 Server). But when I start my Application Server, sometime it starts and most of the times it does not start. The administrator's console page (http://localhost:9090/admin) does not show up most of the times. Can someone help me configure my Appserver as well as HTTP Server so that they run smoothly. Moreover I would like to know how to connect my appserver to Oracle 8i server running on my machine, since i do not have DB2 installed. thanx a lot in advance, regards, Debopam. === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com __ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Importing classes
U can set the classpath in autoexec.batOn windows system, control panel - system - environment tab Look for CLASSPATH variable under user variables. If it is not there, enter CLASSPATH in the variable text field and enter the path to the jar file of ur package, eg: if it is in c:\myJars\myPackage.jar, enter this full path including the jar file name in the value field and click on set button. the value u have to enter in the value field is : %CLASSPATH%; c:\myJars\myPackage.jar i.e., the reference to previous classpaths (if any set), the path to ur jar file. Now u start ur tomcat server and run ur application. I have never worked with tomcat, but went thru some docs, regarding setting classpath. Also I am sending a URL for ur reference. http://www.moreservlets.com/Using-Tomcat-4.html#Set-CLASSPATH Hope this helps. Priya. -Original Message- From: Ramaswamy, Rathnapriya (CORP, GTS, L531741) [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 15, 2002 1:28 PM To: [EMAIL PROTECTED] Subject: Re: Importing classes Why don't you jar the package and add it to the classpath -Original Message- From: panos periorellis [mailto:[EMAIL PROTECTED]] Sent: Monday, January 14, 2002 9:29 PM To: [EMAIL PROTECTED] Subject: Importing classes I have developed some java classes which i want to import in my JSP code.. can somebody tell me how do i do this. i have a list of classes in a package called travel but this %@ page import=travel.* % produces errors. In fact it says that the package cannot be found? Anyone with similar problems? thanks P === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com THIS E-MAIL MESSAGE ALONG WITH ANY ATTACHMENTS IS INTENDED ONLY FOR THE ADDRESSEE and may contain confidential and privileged information. If the reader of this message is not the intended recipient, you are notified that any dissemination, distribution or copy of this communication is strictly Prohibited. If you have received this message by error, please notify us immediately, return the original mail to the sender and delete the message from your system. === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com THIS E-MAIL MESSAGE ALONG WITH ANY ATTACHMENTS IS INTENDED ONLY FOR THE ADDRESSEE and may contain confidential and privileged information. If the reader of this message is not the intended recipient, you are notified that any dissemination, distribution or copy of this communication is strictly Prohibited. If you have received this message by error, please notify us immediately, return the original mail to the sender and delete the message from your system. === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
How to use Different Fonts
Dear All, Can anyone suggest on how I can use different fonts(multilingual) in my JSPs, especially when there is a chance that those fonts may not be present on the client's machine. Thanx in advance, Debopam -- Sent through GMX FreeMail - http://www.gmx.net === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Problem while writting the response to an Excel file.
Hi Dmitry Namiot, Thanks a lot. Now it is working fine, ie after using application/vnd.ms-excel. Regards Raja - Original Message - From: Dmitry Namiot [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 15, 2002 8:41 PM Subject: Re: Problem while writting the response to an Excel file. See also Excel taglib from Coldtags suite: http://www.servletsuite.com/jsp.htm -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of rajac Sent: dinsdag 15 januari 2002 2:14 To: [EMAIL PROTECTED] Subject: Problem while writting the response to an Excel file. Hi, I am writting the response of a servlet/jsp page to an Excel file. I am setting the response.setContentType(text/xls); But the output is written to a text file in plain text format. How to write the response to an excel file. -- Coldbeans Software - server-side Java (tm) components http://www.servletsuite.com __ Your favorite stores, helpful shopping tools and great gift ideas. Experience the convenience of buying online with Shop@Netscape! http://shopnow.netscape.com/ Get your own FREE, personal Netscape Mail account today at http://webmail.netscape.com/ === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Offbeat.........A Java question.
Hi, Is there any API existing which can trap the standard errors and can display on demand. I am using an IBM API which sends the errors to stderr which I want to trap and show to the client on demand. Many Thanks, -ShriKant === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
Re: Using JNDI in a JSP/Servlet
Hi Celeste,
JNDI is a spec provided by Sun for Naming Managers. Various 3rd Party
Vendors offer their Naming manager implementations, some of which support
the JNDI spec. When including jndi.jar from your JDK files, you are
including the spec but not any concrete implementation. Since you _are_
trying to connect to a real naming manager, there should be a another
jar/library containing those real implementation classes.
The INITIAL_CONTEXT_FACTORY param that you are using, however, is the one
used for Sun's reference implementation of a naming manager utilizing a file
system (which is a valid naming server) - so you would probably want to dig
some more into your documentation and find a real example. btw are you using
a connection pool on iPlanet?
zvika.
When saying JNDI provider classes I am refering to those classes that were
supplied by the JNDI service implementor, such as
com.sun.jndi.fscontext.RefFSContextFactory. BTW how come you're using
-Original Message-
From: A mailing list about Java Server Pages specification and reference
[mailto:[EMAIL PROTECTED]]On Behalf Of Haseltine, Celeste
Sent: Wednesday, January 16, 2002 2:16 AM
To: [EMAIL PROTECTED]
Subject: Re: Using JNDI in a JSP/Servlet
Zvika,
When you mention Java provider classes, are you referring to classes that
should be in my third party driver's jar file? The only jndi jar file I
have in my classpath is the one included in the JDK from Sun. The test
servlet I was using came out of the vendors examples files that they ship
with the driver. They are pretty much incomplete, so if this is an error
being thrown from the vendors jar file, I'll post this with their tech
support group. Or are you referring to something else?
Celeste
-Original Message-
From: Zvika Markfeld [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, January 15, 2002 5:29 PM
To: [EMAIL PROTECTED]
Subject: Re: Using JNDI in a JSP/Servlet
the exception means that the nitialContextFactory object specified in your
env cannot be located. This might be due to the fact that your jndi.jar
contains only the interfaces that are related to jndi (that is, package
javax.naming and related packages) but not the JNDI provider classes. you
need to add to your classpath these classes, that are usually bundled with
the Naming Manager you are trying to access.
zm.
-Original Message-
From: A mailing list about Java Server Pages specification and reference
[mailto:[EMAIL PROTECTED]]On Behalf Of Haseltine, Celeste
Sent: Wednesday, January 16, 2002 1:07 AM
To: [EMAIL PROTECTED]
Subject: Using JNDI in a JSP/Servlet
I'm attempting to use JNDI with a third party JDBC driver inside of a
servlet. When I attempt to call the servlet, my catch block catches the
following error message:
Error . Cannot instantiate class:
com.sun.jndi.fscontext.RefFSContextFactory
I moved the code into a pure Java class for debugging. The line that the
error message occurs on is as follows:
ctx = new InitialContext(env);
Does anyone have a guess as to why I am unable to instantiate a new Context
class? I suspect it may have to do with setting permissions for jndi, but I
am not certain. I do have the JNDI.jar file in my server jvm jre\lib\ext
subdirectory, and I moved it into my jdk jre\lib\ext subdirectory for
debugging the class code. Just for grins I included the jdk jre\lib\ext
path in my dev box classpath for testing the class code. The class code is
as follows:
import java.sql.*;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.sql.DataSource;
import net.avenir.jdbcPool.*;
import java.util.Hashtable;
public class DataSourceTest{
public static void main(String[] argv){
System.out.println(got to beginning);
Context ctx =null;
System.out.println(got to 1);
try{
JDBCConnectionPoolDataSource cpds1 = new
JDBCConnectionPoolDataSource();
System.out.println(got to 2);
//cpds1.setServerName();
cpds1.setDatabaseName(Northwind);
cpds1.setPort(1433);
Hashtable env = new Hashtable(11);
System.out.println(got to 3);
env.put
(Context.INITIAL_CONTEXT_FACTORY,com.sun.jndi.fscontext.RefFSContextFactory
);
System.out.println(got to 4);
env.put(Context.PROVIDER_URL,file:/);
System.out.println(got to 5);
ctx = new InitialContext(env); //THIS IS THE LINE THE
ERROR OCCURS ON
System.out.println(got to 6);
ctx.rebind(jdbc:pool:poolDS,cpds1);
System.out.println(got to 7);
JDBCDataSource ds1=new JDBCDataSource();
ds1.setDataSourceName(jdbc:pool:poolDS);
env = new Hashtable();
offtopic transaction !!
Hi All, I am running a transaction, and I want it to run wiht in a time frame i.e. if it exceeds more than 1 min, transaction should be rolled back. (Transaction is supposed to succeed in 1 min). Is there any way i can do it like doing it in a running thread which destroys it self after 1 min etc. If some body knows better way of achieving it. Replys will be appriciated. Cheers!! Raj === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://archives.java.sun.com/jsp-interest.html http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.jsp http://www.jguru.com/faq/index.jsp http://www.jspinsider.com
