Re: Bean-Managed Persistance - Initializing db connection pool
Evan,
What you are doing does not seem necessary depending on the server that you
are using.
Keep in mind that ejbs are of a transactional nature and do not really need
to use them to initialize a pool. I am using the Weblogic server and it
comes with a pooling feature and I believe most servers do.
Some where in your servers configuration properties should be a setting to
create a pool. This is will be initialized upons startup. Do create your
own solutions. You can then use something like :
Properties props = sessionContext.getEnvironment();
String url = props.getProperty("url");
return DriverManager.getConnection(url);
to get a connection.
Hope this helps.
Suneet Shah
Architect - Diamelle Technologies
http://www.diamelletechnologies.com
visit us at Pod 1019
-Original Message-
From: Evan Vaala [EMAIL PROTECTED]
To: [EMAIL PROTECTED] [EMAIL PROTECTED]
Date: Thursday, December 02, 1999 10:51 PM
Subject: Bean-Managed Persistance - Initializing db connection pool
Does this scenario sound ok?
I want to create an ejb that will provide the initialization and admin
routines
on a static db connection pool.
This ejb will have an initialization routine that will create the db
connection
pool and place it into the InitialContext.
Following startup of the ejb server, an admin routine would be run that
would
create/initialize this ejb that would then create the db connection pool
making
it available for other beans to access.
Does this sound ok?
If there is a standard to adhere to for initializing db connections, I
would be
interested in a URL that describes it. I am aware of the jdbc objects for
"pooling" but what I want to know is the best way to initialize these in an
ejb
server.
Thanks!
Evan Vaala
===
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff
JSP-INTEREST".
FAQs on JSP can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
===
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
FAQs on JSP can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
No Subject
Title: Can any body tell me how to un-subscribe
Re: AW: Redirection to another page
I think both of us are right because servlet API2.1 does not support relative URLs in redirect request but Servlet API 2.2 does and also unequivocally. There is no mention, however, that this function was modified in API2.2. http://java.sun.com/products/servlet/2.2/javadoc/index.html Thanks, KM -Original Message- From: Govind Seshadri [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 02, 1999 11:03 PM To: Khurram Mahmood Cc: [EMAIL PROTECTED] Subject: Re: AW: Redirection to another page The Servlet 2.1 API unequivocally states that relative URLs are not permitted with response.sendRedirect(). See the following API link: http://java.sun.com/products/servlet/2.1/api/javax.servlet.http.HttpServletR esponse.html#sendRedirect(javax.servlet.http.String) But you know what? You are right! It seems you can indeed use relative URLs with sendRedirect(). I am now not sure whether this is a bug or an unintended 'feature'... :- I have appropriately modified the FAQ entry. Thanks for pointing it out. Govind Khurram Mahmood wrote: I think jguru is wrong about this one. I have been using sendRedirect() with relative URL's and it works fine. KM -Original Message- From: Govind Seshadri [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 02, 1999 12:06 PM To: [EMAIL PROTECTED] Subject: Re: AW: Redirection to another page The response.sendRedirect() accepts only a fully qualified URL. For handling relative URLs see the following jGuru JSP FAQ entry: http://www.jguru.com/jguru/faq/view.jsp?EID=376 hth, Govind "Bernard, Frank" wrote: Is it possible to write JSP code to redirect the browser to open a new page, say, page B from JSP code in page A? use:response.sendRedirect ( target_URL ); Frank Bernard Healy Hudson AG CDT - Core Development Team 67691 Hochspeyer, Nelkenstr. 43 Tel.: 06305 / 92 11-804, Fax: 06305 / 92 11-60 === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html -- Govind Seshadri [EMAIL PROTECTED] Enterprise Java Guru jGuru.com - The Java Portal http://www.jguru.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html -- Govind Seshadri [EMAIL PROTECTED] Enterprise Java Guru jGuru.com - The Java Portal http://www.jguru.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: AW: Redirection to another page
The Servlet 2.1 API unequivocally states that relative URLs are not permitted with response.sendRedirect(). See the following API link: http://java.sun.com/products/servlet/2.1/api/javax.servlet.http.HttpServletResponse.html#sendRedirect(javax.servlet.http.String) But you know what? You are right! It seems you can indeed use relative URLs with sendRedirect(). I am now not sure whether this is a bug or an unintended 'feature'... :- I have appropriately modified the FAQ entry. Thanks for pointing it out. Govind Khurram Mahmood wrote: I think jguru is wrong about this one. I have been using sendRedirect() with relative URL's and it works fine. KM -Original Message- From: Govind Seshadri [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 02, 1999 12:06 PM To: [EMAIL PROTECTED] Subject: Re: AW: Redirection to another page The response.sendRedirect() accepts only a fully qualified URL. For handling relative URLs see the following jGuru JSP FAQ entry: http://www.jguru.com/jguru/faq/view.jsp?EID=376 hth, Govind "Bernard, Frank" wrote: Is it possible to write JSP code to redirect the browser to open a new page, say, page B from JSP code in page A? use:response.sendRedirect ( target_URL ); Frank Bernard Healy Hudson AG CDT - Core Development Team 67691 Hochspeyer, Nelkenstr. 43 Tel.: 06305 / 92 11-804, Fax: 06305 / 92 11-60 === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html -- Govind Seshadri [EMAIL PROTECTED] Enterprise Java Guru jGuru.com - The Java Portal http://www.jguru.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html -- Govind Seshadri [EMAIL PROTECTED] Enterprise Java Guru jGuru.com - The Java Portal http://www.jguru.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
AW: AW: Redirection to another page
Craig McClanahan wrote: "Bernard, Frank" wrote: Is it possible to write JSP code to redirect the browser to open a new page, say, page B from JSP code in page A? use:response.sendRedirect ( target_URL ); You can also do this on the server side (without a second round trip back to the client) with jsp:forward page="/targetpage.jsp" / % response.sendRedirect ( target_URL ); % is server side, isn't it. Frank Bernard Healy Hudson AG CDT - Core Development Team 67691 Hochspeyer, Nelkenstr. 43 Tel.: 06305 / 92 11-804, Fax: 06305 / 92 11-60 === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: jsp param trouble
Hi Mario,
Try using:
param name="MYNAME" value='%=var%'
hth,
Govind
"Pizzonia, Mario Carmelo" wrote:
Hi everyone,
I'm working with JSP1.0 and I have a trouble with the tag
jsp:pluginparam name="MYNAME" value="ANTONIO"
The strings myname and antonio must be quoted otherwise it falls in
compilation error.
But I have the need to evaluate a variable with %=var% so :
param name="MYNAME" value="%=var%" but in this case it doesn't
evaluate the expression but send out the value %=var%.
If I don't put the " " it falls in compilation error.
How can I do to set a value the must be the evaluation of an expression ??
(my particular expression is %=session.getValue("parameter")%)
Thanks a lot for an answer.
--
Govind Seshadri [EMAIL PROTECTED]
jGuru.com - The Java Portal
Check out our JSP FAQ:
http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
http://www.jguru.com
===
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
FAQs on JSP can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
Re: AW: Redirection to another page
I think jguru is wrong about this one. I have been using sendRedirect() with relative URL's and it works fine. KM -Original Message- From: Govind Seshadri [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 02, 1999 12:06 PM To: [EMAIL PROTECTED] Subject: Re: AW: Redirection to another page The response.sendRedirect() accepts only a fully qualified URL. For handling relative URLs see the following jGuru JSP FAQ entry: http://www.jguru.com/jguru/faq/view.jsp?EID=376 hth, Govind "Bernard, Frank" wrote: Is it possible to write JSP code to redirect the browser to open a new page, say, page B from JSP code in page A? use:response.sendRedirect ( target_URL ); Frank Bernard Healy Hudson AG CDT - Core Development Team 67691 Hochspeyer, Nelkenstr. 43 Tel.: 06305 / 92 11-804, Fax: 06305 / 92 11-60 === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html -- Govind Seshadri [EMAIL PROTECTED] Enterprise Java Guru jGuru.com - The Java Portal http://www.jguru.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: AW: Redirection to another page
For some reason jsp forward tag never works. Instead of compiling the target jsp page into servlet and then executing it, it just shows the jsp code on the html page as text. KM -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 02, 1999 12:19 PM To: [EMAIL PROTECTED] Subject: Re: AW: Redirection to another page "Bernard, Frank" wrote: Is it possible to write JSP code to redirect the browser to open a new page, say, page B from JSP code in page A? use:response.sendRedirect ( target_URL ); You can also do this on the server side (without a second round trip back to the client) with jsp:forward page="/targetpage.jsp" / Craig McClanahan === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: AW: Redirection to another page
Khurram Mahmood wrote: For some reason jsp forward tag never works. Instead of compiling the target jsp page into servlet and then executing it, it just shows the jsp code on the html page as text. KM What version of JSP does your environment support? jsp:forward was added in version 1.0 -- if you are on a version 0.91 or 0.92 system, you won't be able to use this. Craig -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 02, 1999 12:19 PM To: [EMAIL PROTECTED] Subject: Re: AW: Redirection to another page "Bernard, Frank" wrote: Is it possible to write JSP code to redirect the browser to open a new page, say, page B from JSP code in page A? use:response.sendRedirect ( target_URL ); You can also do this on the server side (without a second round trip back to the client) with jsp:forward page="/targetpage.jsp" / Craig McClanahan === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: AW: Redirection to another page
But I am using jsp1.0. I am using tags like jsp:useBean ... %@ include and ! for server scripts. Now all of the above tags are only valid in jsp1.0 and they perform fine in the environment I am using. jsp:forward tag is the only tag I am having problems with. Thanks, KM -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 02, 1999 9:22 PM To: Khurram Mahmood; [EMAIL PROTECTED] Subject: Re: AW: Redirection to another page Khurram Mahmood wrote: I am using jsp1.0 and JRUN2.3. There was no jsp:forward in 0.92 and if I was using 0.92, I would've gotten a compilation error, not this strange behavior. That was my first thought as well, until I remembered how stupid compilers really are. The JSP engine looks through your page for tags it recognizes. Anything else is considered to be template text, and is passed through unchecked. For 0.92 engines, it recognizes things like usebean (without the jsp prefix). It saw jsp:forward, concluded "this must be some new HTML tag I do not understand", and sent it on to the output file where it showed up in your browser's text. One of the reasons that the "jsp:" prefix was added in 1.0 was to allow the compiler to be smarter than this. It can look at a tag jsp:x and complain if it does not know what x is. But, if you omit the prefix and just incorrectly use forward, I bet it would make the same mistake. Thanks, KM Craig McClanahan -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 02, 1999 9:06 PM To: Khurram Mahmood Cc: [EMAIL PROTECTED] Subject: Re: AW: Redirection to another page Khurram Mahmood wrote: For some reason jsp forward tag never works. Instead of compiling the target jsp page into servlet and then executing it, it just shows the jsp code on the html page as text. KM What version of JSP does your environment support? jsp:forward was added in version 1.0 -- if you are on a version 0.91 or 0.92 system, you won't be able to use this. Craig -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 02, 1999 12:19 PM To: [EMAIL PROTECTED] Subject: Re: AW: Redirection to another page "Bernard, Frank" wrote: Is it possible to write JSP code to redirect the browser to open a new page, say, page B from JSP code in page A? use:response.sendRedirect ( target_URL ); You can also do this on the server side (without a second round trip back to the client) with jsp:forward page="/targetpage.jsp" / Craig McClanahan === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: AW: Redirection to another page
Khurram Mahmood wrote: I am using jsp1.0 and JRUN2.3. There was no jsp:forward in 0.92 and if I was using 0.92, I would've gotten a compilation error, not this strange behavior. That was my first thought as well, until I remembered how stupid compilers really are. The JSP engine looks through your page for tags it recognizes. Anything else is considered to be template text, and is passed through unchecked. For 0.92 engines, it recognizes things like usebean (without the jsp prefix). It saw jsp:forward, concluded "this must be some new HTML tag I do not understand", and sent it on to the output file where it showed up in your browser's text. One of the reasons that the "jsp:" prefix was added in 1.0 was to allow the compiler to be smarter than this. It can look at a tag jsp:x and complain if it does not know what x is. But, if you omit the prefix and just incorrectly use forward, I bet it would make the same mistake. Thanks, KM Craig McClanahan -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 02, 1999 9:06 PM To: Khurram Mahmood Cc: [EMAIL PROTECTED] Subject: Re: AW: Redirection to another page Khurram Mahmood wrote: For some reason jsp forward tag never works. Instead of compiling the target jsp page into servlet and then executing it, it just shows the jsp code on the html page as text. KM What version of JSP does your environment support? jsp:forward was added in version 1.0 -- if you are on a version 0.91 or 0.92 system, you won't be able to use this. Craig -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 02, 1999 12:19 PM To: [EMAIL PROTECTED] Subject: Re: AW: Redirection to another page "Bernard, Frank" wrote: Is it possible to write JSP code to redirect the browser to open a new page, say, page B from JSP code in page A? use:response.sendRedirect ( target_URL ); You can also do this on the server side (without a second round trip back to the client) with jsp:forward page="/targetpage.jsp" / Craig McClanahan === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
GNUJSP 1.0 on Apache/NT/4
When I call the example date.asp, it doesn't work and the file error.log says: [Wed Dec 01 18:57:24 1999] [warn] [client 155.132.241.31] handler "jsp-handler" not found for: c:/javaprojects/examples/date.jsp [Wed Dec 01 18:57:24 1999] [error] [client 155.132.241.31] File does not exist: c:/javaprojects/alph/gnujsp/Examples/date.jsp ant html files said : Not Found The requested URL /alph/gnujsp/Examples/date.jsp was not found on this server. Apache/1.3.6 Server at bcees0f.eu.cit.alcatel.fr Port 80 My config is : All examples in c:\JavaProjects\Examples The root of WEB is c:\JavaProjects\ and my Config files are like the instructions given.. Thanks for you help. Cédric. === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
HI gurus...
Hi I have some problem in JSP's. Actually i have list box and some text fields in display.jsp file. When i select one particular value in list box the coreesponding details should be queried and displayed in the textfields. All components are in the same page ! Some fields are non-editable and static fields and they have to retain their values (like date suppose). I wrote the bean but how should i handle events inside a JSP file. Can anyone help me in this regard. Thanks in Advace. Surya.
Encoding URL for links
Hi,
As I said in a previous mail, I have many jsp files that call each
other using links. To avoid 'disable cookies' problem, I'd like to
encode the URL. I tried both :
A HREF=%=response.encodeURL("mypage.jsp")
%?TheDb=%=allInstances.getTheDbName()%
and
String instanceURL = response.encodeUrl("instance.jsp");
A HREF=%=instanceURL%?TheDb=%=allInstances.getTheDbName()%
Instance.jsp, I display the session ID (session.getId()), and it
changes each time i call the instance jsp page. Did i forget something ?
I also wanted to be able to keep same session while my errorPage is
called, is there a way to encode the errorPage URL ?
Thanks for your help
veronique
===
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
FAQs on JSP can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
Re: weblogic html and jhtml
The weblogic properties files will allow you to set working directories for JSP JHTML classes etc, but there is only one entry for the document root (where the HTML JSP files that you serve live). So you can separate your class files into different directory, but all your serveable files need to be below the document root. Of course this is how html etc works, using relative references. The weblogic properties file is in the weblogic root directory (i.e. c:\weblogic). This is all in the documentation for WebLogic. Does this help? Cheers, Dan -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Joshua Rudin Sent: Friday, December 03, 1999 1:41 AM To: [EMAIL PROTECTED] Subject: weblogic html and jhtml Is there a way in weblogic to have the HTML and JHTML (or JSP) pages each have a different default directory? Thanks, Josh __ Get Your Private, Free Email at http://www.hotmail.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: HI gurus...
Regenerate the file when you change some values in some box. Use the onChange event and JavaScript to reload the page with more specific parameters. /Marcus -Original Message- From: Siva Surya Kumar V [mailto:[EMAIL PROTECTED]] Sent: den 3 december 1999 10:39 To: [EMAIL PROTECTED] Subject: HI gurus... Hi I have some problem in JSP's. Actually i have list box and some text fields in display.jsp file. When i select one particular value in list box the coreesponding details should be queried and displayed in the textfields. All components are in the same page ! Some fields are non-editable and static fields and they have to retain their values (like date suppose). I wrote the bean but how should i handle events inside a JSP file. Can anyone help me in this regard. Thanks in Advace. Surya. === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Connection Pool
Ok. I am on a roll now. I am trying to setup a Connection Pool. I have a few samples. But I don't know where to put it in my project. Should I put it in the Beans? Or should I just make one connectionpool jsp file and include it in all the pages? What is the best way? I know this is an opened end question but, I'd like to hear a few suggestions. === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
JSP/HTML Field Validation
What is the generally accepted way of performing HTML field validation using JSPs. Is it better done in JavaScript because it's performed client side? Thanks in advance. Cheers, Chris This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. This message is provided for informational purposes and should not be construed as a solicitation or offer to buy or sell any securities or related financial instruments. === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: How to get the text after the jsp file?
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On Fri, 3 Dec 1999, Bernander, Marcus wrote:
I know about a and c, in the standard GET query. That's no
problem. ("Nothing" was a bad choice of words.) But what would the name of
the parameter of value "a" be for "http://host/file.jsp/a"?
Parameters.
Don't be affraid to try!
/Marcus
-Original Message-
From: Joseph B. Ottinger [mailto:[EMAIL PROTECTED]]
Sent: den 3 december 1999 15:56
To: [EMAIL PROTECTED]
Subject: How to get the text after the jsp file?
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Sorry, I forgot the term for it.
Getting the query parameters is easy; file.jsp?a=bc=d, the a and c
parameters are nothing to extract.
However, what if the URL is of the form file.jsp/a? Is the "a" accessible
at all?
-BEGIN PGP SIGNATURE-
Version: PGP 6.5.1i
iQA/AwUBOEfaAAhcVZKknQwGEQJ66ACgvBaahp3UQOSGWUKzQauN1wtsxXUAni5U
gbmegO+Lk2r6X2ZrzCPcYMTP
=dkXM
-END PGP SIGNATURE-
===
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff
JSP-INTEREST".
FAQs on JSP can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
-BEGIN PGP SIGNATURE-
Version: PGP 6.5.1i
iQA/AwUBOEfk6AhcVZKknQwGEQIfZACfboxwbbU2IvrgAktp3NHlIicnL9wAn3BR
081Bcz/TnKS93Ci6A9sZ9/jg
=HYcr
-END PGP SIGNATURE-
===
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
FAQs on JSP can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
Re: How to get the text after the jsp file?
Parameters. Don't be affraid to try! /Marcus -Original Message- From: Joseph B. Ottinger [mailto:[EMAIL PROTECTED]] Sent: den 3 december 1999 15:56 To: [EMAIL PROTECTED] Subject: How to get the text after the jsp file? -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Sorry, I forgot the term for it. Getting the query parameters is easy; file.jsp?a=bc=d, the a and c parameters are nothing to extract. However, what if the URL is of the form file.jsp/a? Is the "a" accessible at all? -BEGIN PGP SIGNATURE- Version: PGP 6.5.1i iQA/AwUBOEfaAAhcVZKknQwGEQJ66ACgvBaahp3UQOSGWUKzQauN1wtsxXUAni5U gbmegO+Lk2r6X2ZrzCPcYMTP =dkXM -END PGP SIGNATURE- === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
JSP develoment tool
Does it exist any tool for developping and debuging jsp files ? === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: Connection Pool
I use a Singelton class ConnectionHandler to manage my connection pools. This ConnectionHandler has static methods to get and close a connection. When you get a connection you really get a wrapper for a connection (but it implements sql.connection itself as well.) the close method of the wrapper doesn't close the underlying connection but releases it in the pool. Geert 'Darling' Van Damme -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Cory L Hubert Sent: vrijdag 3 december 1999 16:55 To: [EMAIL PROTECTED] Subject: Connection Pool Ok. I am on a roll now. I am trying to setup a Connection Pool. I have a few samples. But I don't know where to put it in my project. Should I put it in the Beans? Or should I just make one connectionpool jsp file and include it in all the pages? What is the best way? I know this is an opened end question but, I'd like to hear a few suggestions. == = To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: JSP/HTML Field Validation
My comments relate to the Server vs Client side validation My background includes several years of Forte, which is a three tier client/server environment and language (similar to Java). As such we have had to deal with the issue outlined in your question and I am giving you the take that we use with Forte. Some of the considerations that we take into account when deciding where to place the processing, in this case the validation, is - how complex is the validation, if simple let the client side handle it. - where is the processing power (if it is anticipated that the client machine may be heavily utilized put it on the server. - Likewise if the server is heavily utilized you may what to move it, or a portion, to the client. - The amount of data required to do the validation (i.e. if you have to pass lots of data to the client do not do it) relates to network traffic and speed to load the page. - What is the being validated (i.e. do not validate the user id/password at the client side) - To add some context to using this information Forte has a client side event handler. Thus there is no issues with having anything other than the native Forte on the client. - One thing that can be done in Forte, that I will try in the Java/JSP, is... Forte widgets have an object, that is similar to a vector, such that when the user selects a value (i.e. from a drop list) an associated value is used. (i.e. if the user was selecting 'U.S.A.' from a countries drop list the value that would be transferred to a 'record' would be 1). This could probably be accomplished using beans. I have done something similar, to the above, using servlets, though not in the same event driven manor, but not on the client side. Perhaps someone could comment more on that side. Robert Heske Chris wrote: What is the generally accepted way of performing HTML field validation using JSPs. Is it better done in JavaScript because it's performed client side? Thanks in advance. Cheers, Chris This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. This message is provided for informational purposes and should not be construed as a solicitation or offer to buy or sell any securities or related financial instruments. === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: AW: AW: Redirection to another page
"Bernard, Frank" wrote: Craig McClanahan wrote: "Bernard, Frank" wrote: Is it possible to write JSP code to redirect the browser to open a new page, say, page B from JSP code in page A? use:response.sendRedirect ( target_URL ); You can also do this on the server side (without a second round trip back to the client) with jsp:forward page="/targetpage.jsp" / % response.sendRedirect ( target_URL ); % is server side, isn't it. It is initiated at the server side, but requires an extra round trip HTTP transaction with the client. The overall flow goes like this: * Client makes the original request * Server reads the request, decides which servlet or JSP page should create this response, and sends back a "redirect" response telling the client to call that servlet or page directly * Client automatically follows the "redirect" * Server sends back the actual response Request forwarding is more like a "go to" on the server side: * Client makes the original request * Server reads the request, decides which servlet or JSP page should create this response, and then calls it to create the actual response If the client is at the far end of a slow modem, the time difference between these approaches can be substantial. Frank Bernard Craig McClanahan === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
mailing lists options...
It is great to see all the interest in JSP Servlets, and all the good messages at the lists. The JSP and Servlet mailing lists are the two interest lists with highest subscriptions (check at http://archives.java.sun.com) which is quite impressive, specially considering that we have not been on the front cover of java.sun.com for a while. With the interest comes additional mail traffic. I want to remind people that there are several options to keeping in touch with the JSP Servlet technologies: - register to the jsp-interest and servlet-interest mailing list with usual per-mail delivery. This is best to follow email conversations and to get up-to-the-minute messages. - register to the jsp-interest and servlet-interest mailing lists with digest mode. This way you get a single message a day. There are different digest formats available. I subscribe this way with the standard digest mode so I can do textual searches within the digest (subject lines are usually not very helpful). - register to the jspservlet-announce mailing list. This is a mailing list for announcements from the JSP/Servlet team at Sun, and will post all important milestones and events to this mailing list. An announcement list is not a replacement to an interest list but when we used it for JavaBeans we have found it provides a very useful service. You can register to the mailing lists by email or using your browsers. * Point your browser to http://archives.java.sun.com, and follow the links to your favorite list. * Send mail to: [EMAIL PROTECTED] With a message of: subscribe jspservlet-announce [Your Full Name] or whatever is your favorite list Now back to your regular broadcasting... - eduardo === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
how to displaying in browser
Title: how to displaying in browser Hi friends, I am using lt and quot' to display and double quote () respectively. Everything is fine in IE4 but not in netscape. Can anyone give me some tips. Plus, how can my server side servlet/jsp detect what browser the clients are using? Any helps are highly appreciated J.H
Re: AW: Redirection to another page
Govind Seshadri wrote: The Servlet 2.1 API unequivocally states that relative URLs are not permitted with response.sendRedirect(). See the following API link: http://java.sun.com/products/servlet/2.1/api/javax.servlet.http.HttpServletResponse.html#sendRedirect(javax.servlet.http.String) But you know what? You are right! It seems you can indeed use relative URLs with sendRedirect(). I am now not sure whether this is a bug or an unintended 'feature'... :- In spite of what the specs say, some servlet engines converted relative-absolute for you, and some browsers even know how to do a relative sendRedirect in spite of what the HTTP protocol specs say (absolute), so it sometimes worked even when the servlet engine did not do anything. The version 2.2 API recognizes this reality and will say that relative URLs are allowed, but it requires the servlet engine to produce an absolute one to send back to the browser, in conformance with HTTP. I have appropriately modified the FAQ entry. Thanks for pointing it out. Govind Craig McClanahan Khurram Mahmood wrote: I think jguru is wrong about this one. I have been using sendRedirect() with relative URL's and it works fine. KM -Original Message- From: Govind Seshadri [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 02, 1999 12:06 PM To: [EMAIL PROTECTED] Subject: Re: AW: Redirection to another page The response.sendRedirect() accepts only a fully qualified URL. For handling relative URLs see the following jGuru JSP FAQ entry: http://www.jguru.com/jguru/faq/view.jsp?EID=376 hth, Govind "Bernard, Frank" wrote: Is it possible to write JSP code to redirect the browser to open a new page, say, page B from JSP code in page A? use:response.sendRedirect ( target_URL ); Frank Bernard Healy Hudson AG CDT - Core Development Team 67691 Hochspeyer, Nelkenstr. 43 Tel.: 06305 / 92 11-804, Fax: 06305 / 92 11-60 === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html -- Govind Seshadri [EMAIL PROTECTED] Enterprise Java Guru jGuru.com - The Java Portal http://www.jguru.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html -- Govind Seshadri [EMAIL PROTECTED] Enterprise Java Guru jGuru.com - The Java Portal http://www.jguru.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: JSP/HTML Field Validation
An additional concern for browser based clients is that there's usually no way to ensure that the client code will be executed at all; no guarantees that JavaScript and/or Java applets are enabled. In an Intranet you may have some control over this, but never on the Internet. So even if you do validation on the client (for a more user-friendly interface), you have to do it on the server as well. Robert Anglos wrote: My comments relate to the Server vs Client side validation My background includes several years of Forte, which is a three tier client/server environment and language (similar to Java). As such we have had to deal with the issue outlined in your question and I am giving you the take that we use with Forte. Some of the considerations that we take into account when deciding where to place the processing, in this case the validation, is - how complex is the validation, if simple let the client side handle it. - where is the processing power (if it is anticipated that the client machine may be heavily utilized put it on the server. - Likewise if the server is heavily utilized you may what to move it, or a portion, to the client. - The amount of data required to do the validation (i.e. if you have to pass lots of data to the client do not do it) relates to network traffic and speed to load the page. - What is the being validated (i.e. do not validate the user id/password at the client side) - To add some context to using this information Forte has a client side event handler. Thus there is no issues with having anything other than the native Forte on the client. - One thing that can be done in Forte, that I will try in the Java/JSP, is... Forte widgets have an object, that is similar to a vector, such that when the user selects a value (i.e. from a drop list) an associated value is used. (i.e. if the user was selecting 'U.S.A.' from a countries drop list the value that would be transferred to a 'record' would be 1). This could probably be accomplished using beans. I have done something similar, to the above, using servlets, though not in the same event driven manor, but not on the client side. Perhaps someone could comment more on that side. Robert Heske Chris wrote: What is the generally accepted way of performing HTML field validation using JSPs. Is it better done in JavaScript because it's performed client side? Thanks in advance. Cheers, Chris -- Hans Bergsten [EMAIL PROTECTED] Gefion Software http://www.gefionsoftware.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: how to displaying in browser
You're missing the ; (semi-colon). Use "lt;" or "quot;". You can ask for
browser information by looking at the request header information on the
servlet call. Check out HttpServletRequest for your options.
Dan
--
From: Hu, Jeffery X (Jeff)[SMTP:[EMAIL PROTECTED]]
Reply To: Hu, Jeffery X (Jeff)
Sent: Friday, December 03, 1999 9:42 AM
To: [EMAIL PROTECTED]
Subject: how to displaying "" in browser
Hi friends,
I am using "lt" and "quot' to display "" and double quote (")
respectively. Everything is fine in IE4 but not in netscape. Can anyone
give me some tips. Plus, how can my server side servlet/jsp detect what
browser the clients are using?
Any helps are highly appreciated
J.H
===
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
FAQs on JSP can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
How to get the text after the jsp file?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Sorry, I forgot the term for it. Getting the query parameters is easy; file.jsp?a=bc=d, the a and c parameters are nothing to extract. However, what if the URL is of the form file.jsp/a? Is the "a" accessible at all? -BEGIN PGP SIGNATURE- Version: PGP 6.5.1i iQA/AwUBOEfaAAhcVZKknQwGEQJ66ACgvBaahp3UQOSGWUKzQauN1wtsxXUAni5U gbmegO+Lk2r6X2ZrzCPcYMTP =dkXM -END PGP SIGNATURE- === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: How to get the text after the jsp file?
"Joseph B. Ottinger" wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Sorry, I forgot the term for it.
Getting the query parameters is easy; file.jsp?a=bc=d, the a and c
parameters are nothing to extract.
However, what if the URL is of the form file.jsp/a? Is the "a" accessible
at all?
Because JSPs are mapped by filename extension, I would bet that this URL
("file.jsp/a") doesn't even get the page correctly, because the extension is
supposed to be at the end of your URL. A couple of things to think about:
* If you can use "file.jsp?a" instead, then the "a" is available in
request.getQueryString().
* If you are talking about servlets instead of JSPs, and you map
a servlet to a specific URL, you can get the stuff after the path
of the servlet with request.getPathInfo(). For example, if you have
your servlet mapped to "/myservlet" and you submitted the URL
"/myservlet/a", your servlet would be called, and getPathInfo()
would return "/a".
Craig McClanahan
-BEGIN PGP SIGNATURE-
Version: PGP 6.5.1i
iQA/AwUBOEfaAAhcVZKknQwGEQJ66ACgvBaahp3UQOSGWUKzQauN1wtsxXUAni5U
gbmegO+Lk2r6X2ZrzCPcYMTP
=dkXM
-END PGP SIGNATURE-
===
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
FAQs on JSP can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
===
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
FAQs on JSP can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
Re: how to displaying in browser
lt; and quot; HTML entities are supposed to be
terminated with a ';'.
-t
- Original Message -
From:
Hu, Jeffery X
(Jeff)
To: [EMAIL PROTECTED]
Sent: Friday, December 03, 1999 9:42
AM
Subject: how to displaying "" in
browser
Hi friends,
I am using "lt" and "quot' to display "" and
double quote (") respectively. Everything is fine in IE4 but not in
netscape. Can anyone give me some tips. Plus, how can my server
side servlet/jsp detect what browser the clients are using?
Any helps are highly appreciated
J.H
Re: how to displaying in browser
Hi,
See the following links for addressing special characters with Netscape or
IE:
http://developer.netscape.com/docs/manuals/htmlguid/tags22.htm
or
http://msdn.microsoft.com/workshop/author/dhtml/reference/charsets/charset2.asp#charsets2
You might wanna try the numeric version of the HTML entities.
Dennis.
- Original Message -
From:
Hu, Jeffery X
(Jeff)
To: [EMAIL PROTECTED]
Sent: Friday, December 03, 1999
18:42
Subject: how to displaying "" in
browser
Hi friends,
I am using "lt" and "quot' to display "" and
double quote (") respectively. Everything is fine in IE4 but not in
netscape. Can anyone give me some tips. Plus, how can my server
side servlet/jsp detect what browser the clients are using?
Any helps are highly appreciated
J.H
Re: How to get the text after the jsp file?
-Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Joseph B. Ottinger Sent: 03 December 1999 14:56 To: [EMAIL PROTECTED] Subject: How to get the text after the jsp file? -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Sorry, I forgot the term for it. Getting the query parameters is easy; file.jsp?a=bc=d, the a and c parameters are nothing to extract. However, what if the URL is of the form file.jsp/a? Is the "a" accessible at all? Try HttpServletRequest.getPathInfo() HTH, Steve === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
How to compress JSP pages using Content Encoding
Anyone have any ideas how to compress jsp pages using the content-encoding http1.1 header? It turns out that gzip compression works well by default in both browsers. For low bandwidth connections, such as mobile computing, it's a good technique to reduce your traffic by 50-70%. It's easy to do with servlets because you just filter the output through a gzip output stream before sending it back to the servlet output stream, setting the content-encoding header (you can determine when to do this by looking at the accepts-encoding request header). But it's problematic to this with JSP's because you don't have access to the jsp writer this way. The only thing I can think of is using servlet chaining but we can't get that to work in JRun, particularly with redirects. Bill Kayser === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: JSP develoment tool
Maciejowski wrote: Does it exist any tool for developping and debuging jsp files ? === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html Try to look at IBM VisualAge for Java 3.0 Professional (Windows, OS/2, AIX). They have Linux version, too, but I'm not sure it does support JSP development. -- Sincerely yours, Vladyslav Kosulin, Kharkiv, Ukraine ([EMAIL PROTECTED]) === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: Connection Pool
Cory L Hubert wrote:
Ok. I am on a roll now. I am trying to setup a Connection Pool. I have
a few samples. But I don't know where to put it in my project. Should I
put it in the Beans? Or should I just make one connectionpool jsp file and
include it in all the pages?
What is the best way? I know this is an opened end question but, I'd like
to hear a few suggestions.
We have also written a simple singleton ConnectionGenerator class that
has static poolCheckout(...) and poolCheckin(Connection) methods. These
methods are used
inside our *bean* code whenever a db connection in needed. This is done
because
you want to be sure to check the Connection back into a pool regardless
of whether
an exception occurred in your code or not, so you need a try/finally
combo.
We also use this combo to implement transaction rollback when
multi-statement
transactions are used.
For example:
boolean autoCommit = false;
boolean committed = false;
Connection c = ConnectionGenerator.poolCheckout();
Statement s = null;
try {
// do some stuff that could possibly throw an exception.
s = c.createStatement();
s.executeUpdate("UPDATE x SET q=5");
s.commit();
s.close();
committed = true;
s = null;
}
finally {
if( s != null ) try {s.close();} catch(SQLException ignore1) { }
if(!committed ) try {c.rollback();} catch(SQLException ignore2)
{ }
ConnectionGenerator.poolCheckin(c);
}
I really don't think you'd want to implement this sort of code in a
.jsp...
===
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
FAQs on JSP can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
signoff JSP-INTEREST
-Original Message- From: Robert Anglos [mailto:[EMAIL PROTECTED]] Sent: Friday, December 03, 1999 10:19 AM To: [EMAIL PROTECTED] Subject: Re: JSP/HTML Field Validation My comments relate to the Server vs Client side validation My background includes several years of Forte, which is a three tier client/server environment and language (similar to Java). As such we have had to deal with the issue outlined in your question and I am giving you the take that we use with Forte. Some of the considerations that we take into account when deciding where to place the processing, in this case the validation, is - how complex is the validation, if simple let the client side handle it. - where is the processing power (if it is anticipated that the client machine may be heavily utilized put it on the server. - Likewise if the server is heavily utilized you may what to move it, or a portion, to the client. - The amount of data required to do the validation (i.e. if you have to pass lots of data to the client do not do it) relates to network traffic and speed to load the page. - What is the being validated (i.e. do not validate the user id/password at the client side) - To add some context to using this information Forte has a client side event handler. Thus there is no issues with having anything other than the native Forte on the client. - One thing that can be done in Forte, that I will try in the Java/JSP, is... Forte widgets have an object, that is similar to a vector, such that when the user selects a value (i.e. from a drop list) an associated value is used. (i.e. if the user was selecting 'U.S.A.' from a countries drop list the value that would be transferred to a 'record' would be 1). This could probably be accomplished using beans. I have done something similar, to the above, using servlets, though not in the same event driven manor, but not on the client side. Perhaps someone could comment more on that side. Robert Heske Chris wrote: What is the generally accepted way of performing HTML field validation using JSPs. Is it better done in JavaScript because it's performed client side? signoff JSP-INTEREST === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Evaluating dynamically generated HTML form elements
Hello. I'm in a fix and would appreciate any input that you guys can give me. My JSP engine is Weblogic 4.5.1, running the 1.0 JSP spec. My pages make calls based on user selections on any given JSP to EJB methods (via WrappersBeans) which return relevant data to the next JSP in the application page flow. A certain JSP displays previously entered demographic user data in a legacy database, and dynamically displays this data in a number of form element types. (radiobutton, listbox, or textfield objects - Exist as subclasses[DemographicsComboBox,DemographicsRadioButton,and DemographicsTextField] of the DemographicsField class. I wish to validate the user input in these dynamic form elements. JSP scriplet expressions do not evaluate within my Javascript functions. How can I use Javascript to validate these form elements, or am I missing something here? Can I execute my JS function on the server by 'out.print'ling the jscrpt? I'll appreciate any help I can get. Thank you. P.S. Iapologise if this has been discussed previously. -Ade Olumide- __ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: Evaluating dynamically generated HTML form elements
Ade Olumide wrote: [snip] I wish to validate the user input in these dynamic form elements. JSP scriplet expressions do not evaluate within my Javascript functions. How can I use Javascript to validate these form elements, or am I missing something here? Can I execute my JS function on the server by 'out.print'ling the jscrpt? I'll appreciate any help I can get. Thank you. First thing to remember -- JSP scriptlets execute as the page is being created, while JavaScript functions execute as the user is filling out the form. The only thing you can do in your JSP page (scriptlets or not does not matter) is generate the correct source code for the validation function, based on the values you retrieve from the database. Whenever I've needed to generate a customized JavaScript function like this with JSP 1.0, I've used a scriptlet that called out.println() to write the JavaScript source code. When JSP 1.1 based engines become available, I would be more inclined to write a custom tag that generated the correct JavaScript, but 1.1 support is not generally available yet. P.S. Iapologise if this has been discussed previously. You can find out if it has been discussed by checking the mailing list archives (http://archives.java.sun.com). -Ade Olumide- Craig McClanahan === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Servlet deployment
This isn't a strictly JSP question: if you have multiple web servers for scalability, where are you storing your JSPs and Servlets (or for that matter your HTML data)? Are you duplicating the files across all your servers? Do you store your files on a network drive that all the web servers have access to? Thanks for any input... === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
Re: How to compress JSP pages using Content Encoding
Kayser William wrote: Anyone have any ideas how to compress jsp pages using the content-encoding http1.1 header? It's my belief that you can't, because JSP is meant for writing text, and GZip output is binary. It turns out that gzip compression works well by default in both browsers. I've seen problems using IE4 on Win95. Have you always had success there? -jh- -- Jason Hunter [EMAIL PROTECTED] Book:http://www.servlets.com/book 2.0 to 2.1: http://www.javaworld.com/jw-12-1998/jw-12-servletapi.html 2.1 to 2.2: http://www.javaworld.com/jw-10-1999/jw-10-servletapi.html === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
JSWDK Server not seponding ?
Hi, I am unable to run the JSWDK 1.0.1 server. Earlier it was working fine. I have changed the ClassPath but however I have retained the original Classpath. It is giving me an error "Problem creating admin registry". Can any body help me how to adjust the value in the registry so that the server starts. Unless the server starts I cannot run my JSP pages. Kindly help me. Regards, Suresh Kumar === To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
