RE: Another Try at MySQL Connection Pooling
Jay, >>> once in my .WAR, and once as a result of my Ant deploy task I have yet to move to that plane of confusion. I'm not using a META-INF directory or a .WAR file since I'm still trying to figure out WHAT to deploy. I am manually editing * the conf/server.xml file (to change the default ports, but nothing else), * the webapps/timesheet/* directory (to hold the application), * the webapps/WEB-INF/web.xml file (to name and map the various servlets, etc.), and * conf/Cataline/localhost/timesheet.xml (to define the context). I think it's time I reverted to DriverManager and got on with other things. While Tomcat DataSources are proved to be a learning experience with a vengance, it hasn't been a very positive one. :-( Nevertheless, thanks for your help and support. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Another Try at MySQL Connection Pooling
Doug, The application directory under webapps is named "timesheet", therefore, the context fragment in conf/Catalina/localhost is "timesheet.xml" to match the context name. The beginning of the element in timesheet.xml is to match the directory name under webapps. So, I think as far as Tomcat goes, I've got it consistently as "timesheet". The class name under webapps/timesheet/WEB_INF/classes is "Timesheet" to follow the Java capitalization conventions of class names. Therefore, "Timesheet" appears in my web.xml as the prefix to the various names, but nowhere else. Now, as for the MySQL database, I named it "Timesheets" (note the capital and the plural). My logic being that the application was for doing a single timesheet at a time while the database was for recording all the timesheets at once. (Yes, I'm anal. I know. :-) ). The database name shows up in the url parameter: jdbc:mysql://localhost/Timesheets?... In that case the plural is critical, but the capitalization isn't (in my case) since a MySQL database name is merely a file name and file names in Windows are case insensitive. Nevertheless, I've got it matching. As far as I can tell, this URL is the only place in the Tomcat configuration files that the name of the MySQL database appears. Unless... Now we come to ... I was just reading up on the JNI naming conventions from a link someone gave me when I stopped to check my mail again. As nearly as I can tell, the "jdbc" part of the "jdbc/TimesheetsDB" is magic, and it must be that to work. However, the "TimesheetsDB" part can be anything you want as long as the name attributes in and matches. Therefore, I used "Timesheets" to reflect the MySQL database name and "DB" just because the first example I saw used that suffix. I think I've got all that consistent, but if DataSource is supposed to be the way to go in the future for JDBC, it shouldn't be this hard. By the way, I do appreciate the time you're spending thinking about my problem. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Another Try at MySQL Connection Pooling
Adam, The following line occurs in stdout.log: INFO: Processing Context configuration file URL file:C:\Program Files\Apache Group\Tomcat 5.0.18\conf\Catalina\localhost\timesheet.xml so it appears to be getting the correct context fragment. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Another Try at MySQL Connection Pooling
Doug, >>> "Timesheet" vs. "timesheet" Good catch, but it didn't make any difference. I originally had three entries for names "Timesheet", (the way I thought of it), "timesheet" (for those who don't want to use the shift key), and "ts" (for those diehard Unix freaks who believe anything worth doing should be done in three characters or less). The actual directory under webapps is "timesheets". I've edited timesheet.xml (note the lower case) to match the directory, but the result was unchanged. Thanks for the thoughts, though. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Another Try at MySQL Connection Pooling
Ken, I didn't intend to include the password in ANY of my posts, but I guess some slipped though. In the version that running, the password is there. And, even if I had fumble fingered the password, THAT would have simply gotten a convention MySQL error rather than a NameNotFoundException for "jdbc". Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Another Try at MySQL Connection Pooling
Doug, I noticed the class name discrepancy myself between the name I had used for DriverManager and the one the DataSource example had. However, when I peeked inside the Connector/J jar file, I found both .class files, altough they are of different sizes. I tried it with your alternative, but the error is the same either way: "At org.apache.naming.NamingContext.lookup(NamingContext.java:814) there occurred a javax.naming.NameNotFoundException: Name TimesheetsDB is not bound in this Context" - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Another Try at MySQL Connection Pooling
Jay,
Context initialContext = new InitialContext();
Context envContext = (Context) initialContext.lookup("java:comp/env");
this.dataSource = (DataSource) envContext.lookup("jdbc/TimesheetsDB ");
Ah ha! I was missing the second step. When I added the second step, it still fails,
but the complaint has changed. Slightly.
"At org.apache.naming.NamingContext.lookup(NamingContext.java:814) there occurred a
javax.naming.NameNotFoundException: Name TimesheetsDB is not bound in this Context"
So now it can find "jdbc", but not "TimesheetsDB".
By the way, what does the "java:comp/env" argument mean?
Merrill
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Re: Another Try at MySQL Connection Pooling
David, I THINK I've figure out that MySQL's Connector/J jar worked in jre/lib/ex when I was using DriverManager because only MySQL needed to see it, and it knew to look in jre/lib/ex. However, with DataSource, I'm assuming it's Tomcat who needs to see it, so it needs to be in Tomcat's common/lib. So I put Connect/J's jar in common/lib--and it still failed in the same manner. I'm wondering if the actual error message MIGHT be giving a clue. It says "Name jdbc is not bound in this Context" when the only thing that EVER appears in any of the XML is "jdbc/TimesheetsDB". * Does this imply that "jdbc/TimesheetsDB" is wrong and the entries should be something like simply "TimesheetsDB"? * Does this imply that "jdbc" has to be declared in some manner before "jdbc/TimesheetsDB" can be declared? Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Another Try at MySQL Connection Pooling
I think I read the using named pipes is faster, but that's not going to be a problem here. If I can't get named pipes to work, then I'll try using TCP/IP restricted to localhost. Actually, this whole DataSource experiment has a questionable return on investment. I already have it working just fine with DriverManager using nothing more than the little README file what comes with MySQL's Connector/J download. However, I'd read that DataSource was "the way to go" for the future, so I thought that switching from DriverManger to DataSource would be a good exercise. So far, all this exercise has given me is sore muscles. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Another Try at MySQL Connection Pooling
Jay, Thanks for your comments. I think the problem may be that I don't have the MySQL Connector/J jar in the common/lib. When using DriverManager, it worked fine in jre/lib/ext, which is one of the places the MySQL documentation recommended. I need to try again with it in the new location. Also under DriverManager, the named pipe access worked as advertised. The MySQL instance will be dedicated to my timesheet application and running on the same machine as Tomcat. For security reasons, I don't want MySQL accepting commands over TCP/IP. There is a my.cnf initialization parameter which tells MySQL to not even start up its TCP/IP listener and used named pipes instead. This obviously only works when MySQL is on the same machine as the application, but that's my situation. The named resource factory stuff was carried over from what worked under DriverManager. However, if may have been redundant, but harmless, under DriverManger too, and I just didn't notice. One general problem I'm having with the document I can find is that it tends to simply say, "do THIS..." without explaining how "THIS" is doing what it's supposed to be doing. As a result, I'm having trouble reasoning as to what should and should not work. Instead, I'm reduced to plugging in the examples and hoping they work. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Another Try at MySQL Connection Pooling
I'm running
* Tomcat 5.0.18 running as a Wndows service,
* MySQL 4.0.16 running as a Windows service, and
* MySQL Connector/J 3.0.10 stable
all on Windows 2000 Server, which is where I'm also doing the testing (i.e., on
localhost).
A number of tomcat-user mailing list denizens have given me snippets of XML to put in
various places. Nothing worked. So I tried following the "MySQL Configuration"
example from
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource-examples-howto.html.
After all changes were made to server.xml, web.xml and timesheet.xml (the
fragment under conf/Catalina/localhost), I restarted Tomcat and tried to login (the
first action that would have had to touch the MySQL database).
I got the following errorPage:
> At Timesheet.Util.errorPage(Util.java:550) there occurred a
> java.lang.Exception: A fatal exception occurred while retrieving login name and pass
> phrase because...
>
> At Timesheet.Util.getSqlConnection(Util.java:492) there occurred a
> java.lang.Exception: Unable to establish a MysqlDataSource connection for
> ResourceLine name "jdbc/TimesheetsDB" >because...
>
> At org.apache.naming.NamingContext.lookup(NamingContext.java:814) there occurred a
> javax.naming.NameNotFoundException: Name jdbc is not bound in this Context
OK, that seems to say it doesn't know what the name "jdbc/TimesheetsDB" is. Tomcat
has written nothing to stderr.log and stdout.log shows a clean startup, so Tomcat
itself isn't too perturbed. stdout.log includes the following line:
> INFO: Processing Context configuration file URL file:C:\Program Files\Apache
> Group\Tomcat 5.0.18\conf\Catalina\localhost\timesheet.xml
implying that my timesheet.xml context fragment file was found and processed. The
Timesheet application log file contains the following:
> 2004-02-10 16:20:05 NamingContextListener[/Catalina/localhost/timesheet]: Resource
> parameters for jdbc/TimesheetsDB = ResourceParams[name=jdbc/TimesheetsDB,
> parameters={factory=org.apache.commons.dbcp.BasicDataSourceFactory,
> url=jdbc:mysql://localhost/Timesheets?autoReconnect=true&socketFactory=com.mysql.jdbc.NamedPipeSocketFactory,
> password=All41a14all, maxWait=1, maxActive=100,
> driverClassName=org.gjt.mm.mysql.Driver, username=timesheet_app, maxIdle=30}]
> 2004-02-10 16:20:05 NamingContextListener[/Catalina/localhost/timesheet]: Adding
> resource ref jdbc/TimesheetsDB
> 2004-02-10 16:20:05 NamingContextListener[/Catalina/localhost/timesheet]:
> ResourceRef[className=javax.sql.DataSource,factoryClassLocation=null,factoryClassName=org.apache.naming.factory.ResourceFactory,{type=scope,content=Shareable},{type=auth,content=Container},{type=factory,content=org.apache.commons.dbcp.BasicDataSourceFactory},{type=url,content=jdbc:mysql://localhost/Timesheets?autoReconnect=true&socketFactory=com.mysql.jdbc.NamedPipeSocketFactory},{type=password,content=All41a14all},{type=maxWait,content=1},{type=maxActive,content=100},{type=driverClassName,content=org.gjt.mm.mysql.Driver},{type=username,content=timesheet_app},{type=maxIdle,content=30}]
> 2004-02-10 16:20:05 NamingContextListener[/Catalina/localhost/timesheet]: Resource
> parameters for UserTransaction = null
[Blank lines added for clarity.] As per the instructions in the
jndi-datasource-examples-howto.html page, my web.xml file has the following addition
>
> MySql Connection Pool
> jdbc/TimesheetsDB
> javax.sql.DataSource
> Container
>
immediately after the element and immediately before the
element.
Now that I am using the timesheet.xml fragment file, server.xml is unchanged
except that I have modified it to use port 80 in place of 8080 and port 443 in place
of 8443.
The timesheet.xml fragment file looks like this:
factory
org.apache.commons.dbcp.BasicDataSourceFactory
maxActive
100
maxIdle
30
maxWait
1
username
timesheet_app
password
xxx
url
jdbc:mysql://localhost/Timesheets?autoReconnect=true&socketFactory=com.mysql.jdbc.NamedPipeSocketFactory
driverClassName
org.gjt.mm.mysql.Driver
I apologize for being so verbose, but I'm trying to provide all of the relevant
information in the initial message. Does anyone see what I've missed? The example in
jndi-datasource-examples-howto.html does NOT look like the other things I was told to
do. (?)
Merrill
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RE: preloading JSPs
I'm running Tomcat 5.0.18 under Windows and I don't see a jspc script in the Tomcat bin directory. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: for
Ankur Replace the "exception-code" with the "error-code" tag and you'll be in business. Agh! (But thanks.) Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Filter to detect a user not logged in
I'm trying to learn filters by writing one to detect when someone who has not logged in tries to access a JSP page that requires login. From what I've read, this seems to be one common use of filters. I think I understand how to write the filter, but to determine whether the session had been logged in, I need to HttpSession object. The doFilter() method receives ServletRequest rather than HttpServletRequest, so there is no getSession() method. At the same time, since the filter is tied to ServletRequest and ServletResponse, it appears that the filter runs at a level "above" individual sessions, implying that a filter could never check whether a specific session was logged in. Can filters be used to check whether a user is logged in? Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Being Ignored?
Jake, Well, I've managed to show that the element itself isn't being ignored. I modified it so that typing "ts" on the URL would execute the "timesheet" app in webapps. However, the sub-element that defines a custom log file name for the application still doesn't seem to be active. I wonder if that was another change between 4.1 and 5.0? Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[OT] "Prohibited Content"
In the last day or two, each message I send to this mailing list gets a response with the subject line "Symantec Mail Security detected that you sent a message containing prohibited content" I initially assumed it thought the XML fragments I was including in my posts were some attempt to insert Trojan code. However, I've also received the same response to a message without any XML. Anyone know what it's objecting to? Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
for
I originally had errorPage declarations at the top of all my JSP pages, which worked. Then I heard about the element in web.xml. So I replaced all of the individual errorPage declarations with: java.lang.Exception /errorPage.jsp in my application's web.xml, and it worked fine. Next I tried 404 /login.jsp to intercept bad URLs and redirect them to the login page. However, THIS does not work. Bad URLs just get the standard Tomcat 404 error page as always. I've Googled the problem and found "it doesn't work for me," "but it DOES work for me," "but it does NOT work for me," and so on. Is there some secret here? (I'm running 5.0.18.) Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Being Ignored?
Below is the Context element I'm using for my application. It was originally created for Tomcat 4.1. With this Context element in server.xml in Tomcat 4.1, a log file of "localhost_timesheet_log.txt" appeared in the %CATALINA%\log directory. reloadable="true" crossContext="true"> prefix="localhost_timesheet_log." suffix=".txt" timestamp="true"/> However, under 5.0.18 (and maybe under 5.0.16--I didn't notice), the only log I get is the (apparently) generic "localhost_log.2004-01-24.txt". Does this mean that my Context element is being ignored, or does 5.0 not observe the Logger sub-element of the Context element? Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: 5.0.18: Windows XP Pro vs Windows 2000
Remy, No, it does not. .xml files in the Host appBase will be ignored. [Sigh...] I thought I had it. Checking back, I see that only the balancer sample app has it context description file there. You need to put your Context elements in XML files next to the ones for the manager and admin, and it will work ok. OK, I tried doing searches of the various *.xml files. Here's what I found: balancer.xml is in: %CATALINA_HOME%\webapps\balancer %CATALINA_HOME\conf\Catalina\localhost jsp-examples.xml is in: can't find it, but it got installed according to stdout.log servlets-examples.xml is in: can't find it, but it got installed according to stdout.log admin.xml is in: %CATALINA_HOME%\server\webapps\admin %CATALINA_HOME\conf\Catalina\localhost manager.xml is in: %CATALINA_HOME%\server\webapps\manager %CATALINA_HOME\conf\Catalina\localhost The %CATALINA_HOME\conf\Catalina\localhost location is mentioned in the Tomcat docs, but I thought the server.xml location was mentioned also. To top it all off, the book TOMCAT, THE DEFINITIVE GUIDE (the only O'Reilly book I've ever been disappointed in) says the *.xml context descriptions (or "fragments", is it calls them) are placed in %CATALINA_HOME%\webapps directory. [signed] Confused in Austin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
5.0.18: Windows XP Pro vs Windows 2000
I have Windows XP Pro at home and Windows 2000 at work. I run Tomcat on both of them, and I try to keep identical environments on both. However, it's not easy. Under 5.0.16, I would run it as a server on XP, but not 2000. Under 5.0.18, I got it running as a server on 2000 immediately while XP took many installs, uninstalls, reboots and what not. (I still don't know what I finally did to get it to work.) After getting 5.0.18 to run under XP, I tried launching my application. Entering "http://localhost/timesheet"; into the browser got a Page Not Found and did not resolve to "https://localhost/timesheet/login.jsp"; as it should. Examining the log showed that the "localhost-timesheet_log.txt" log file defined in the element for the timesheet application in server.xml didn't exist either. Tomcat seemed to be ignoring my application and its context even when I tried using the same conf\server.xml and conf\web.xml files that had worked on Windows 2000. The stdout.logdid exist and showed that the various example contexts (servlet-examples, jsp-examples, balancer, etc.) had been initialized even though mine application hadn't. There were no error messages. Then I noticed that the samples didn't have a element in the server.xml file. Instead, they had a *.xml file in their application directory with ONLY the element in it (i.e., not a well-formed XML file). When I made a copy of my application's element shown below and put it in "...\webapps\timesheet\timesheet.xml" it worked. I've read the 5.0.18 release notes, the FAQ on the Jakarta website, and the tomcat-docs distributed with 5.0.18. I can't find a reference to these fragment files except for the mention of "Context Descriptions" under Deployer. However, those files are nested under the conf directory rather than under the application context. Why does 5.0.18 recognize my application's element in the server.xml file on Windows 2000 but will only recognize it in a timesheet.xml file in my application directory on Windows XP? What is the value of having three possible locations for the same information? Where can I find it documented? Merrill = - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
SOLVED: 5.0.18 Ignoring ?
I (accidently) figured out the problem with the . The problem was in the Connector definition for port 80 in server.xml. The excerpt from server.xml that I posted was correct because it was inadvertently from the 5.0.16 installation. (The editor helpfully "remembered" it for me.) In the 5.0.18 installation that I was actually using, the redirectPort attribute for the Connect on port 80 was still port 8443 rather than port 443, which I had set up the SSL Connector for. Not that I'm trying salve my ego or anything :-), but I still think there may be a Tomcat installation problem/oddity/gotcha. During the installation of the *.exe version, it asks what port you want Tomcat to listen on with the default (reasonably enough) as 8080. I set that input field to 80. In server.xml, the port attribute of the Connector element was properly changed from 8080 to 80, but the redirectPort of that connector was left unchanged as 8443. This may be a mis-feature, depending upon on your view point. One way of looking at it is that ports 80 and 443 go together while ports 8080 and 8433 go together. If the installation dialog allows the default listen port to be changed from 8080 to 80, then shouldn't it also change the default SSL port from 8433 to 433 along with enabling the Connector for port 443? Perhaps the installation needs an additional option of the "what port do you want" dialog that lets you pick an SSL port if you want one where the default is no SSL. At least that dialog choice would make it clear that the choice of HTTP port is independent of the choice of HTTPS port. Anyway, it works for now. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
5.0.18 Ignoring ?
I had been running Tomcat 5.0.16 standalone (it wouldn't start as a service) on Windows 2000 and j2sdk1.4.2 successfully. Yesterday, I installed 5.0.18 and was finally able to get it to run as a service. However, when I launch my timesheet application in the usual way, "http://localhost/timesheet";, I get "Page Cannot Be Displayed." My timesheet context has the index.html welcome page shown below in the docbase directory of that context so the user will automatically be redirected to the login page. (I also have a copy of index.html is all other directories in the application so attempts to "drill down" into the application aways result in the login page.) I want the login to be done over SSL, so I have specified connectors for port 80 and 443 as shown below in the server.xml excerpt. In my original implementation, I had the index.html welcome page redirect to "https://localhost/timesheet/login.jsp";. Also, I had a check at the top fo the login.jsp page to redirect via HTTPS if the connection wasn't secure. Then I found out about the element in my application's web.xml. Under 5.0.16, I added the element to my web.xml, and it all worked, so I could simplify my JSP pages. Under 5.0.18, entering "http://localhost/timesheet"; in the browser results in Page Not Found. However, if I enter "https://localhost/timesheet"; (note the explicit HTTPS), the application launches correctly. So, it appears (to my understanding) that 5.0.18 is ignoring the element in the application's web.xml. I know that Tomcat is sensitive to the ordering of elements in web.xml. In my case, the element is the last element in , which according to the DTD: is acceptable, since I don't have any of the other elements that follows . Is the problem with 5.0.18, or am I missing something? Merrill --- index.html http://www.w3.org/TR/html4/strict.dtd";> --- server.xml . . . . . . --- context web.xml -- http://java.sun.com/dtd/web-app_2_3.dtd";> . . . ConnectTel Timesheet Application Security Constraint Protected Area *.jsp GET POST CONFIDENTIAL - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
for both JSP and Servlets
As I understand it, instead of putting a <%@ page errorPage="/errorPage.jsp" %> in each JSP page, you can put java.lang.Throwable /errorPage.jsp in the web.xml file. I've tried this and it appears to work as advertised. However, I read in www.onJava.com that as of JSP 2.0, you can combine the error handling of both JSP pages and servlets because servlets now pass the exception by the same attribute name as JSP pages do: javax.servlet.error.exception. OK, but how? All of my servlets implement doPost() which is documented to throw ServletException and IOException. Most of the errors I am throwing (and that I want my errorPage.jsp page to handle) are SQLException errors. * If I put a catch for SQLException errors in my servlets, then nothing "escapes" the servlet to be handled by the errorPage.jsp page declared in the web.xml file. * If I do NOT catch the SQLExceptions, then the javac compiler complains (apparently quite rightly) that an undocumented exception was thrown in reference to the ServletException and IOException exceptions doPost() is documented to throw. * If I try to add SQLException to the doPost() throws list, the compiler complains that the overloaded method didn't originally throw SQLException. So, what is the problem way to get exceptions thrown in a servlet conveyed to the error page recorded in the element of the web.xml file? Merrill Cornish - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
setContentType() vs.
Does Tomcat see any difference in a servlet that calls setContentType() before generating a page for output versus not calling setContentType() but including an HTML tag in the generated page? Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: restricting access to jsp pages
>>> I don't want to check for whether user is logged in or not in every page Is there any particular reason why? The extra time is in the noise. The code is boilerplate, and you can hige that behind a function call if you want. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: restricting access to jsp pages
I'm confused.
>>> I don't want the user to have to log in, ...
>>> I can't find in the docs how Tomcat knows whether the user has logged in yet,
Question: Do you want your users to log in or not--nevermind who does it?
>>> I want to have my "guard" servlet authenticate the user
How is that different from log in? Regardless of what you call it or whether it's
done by a JSP page or a servlet, the user is going to have to identify himself to the
guard servlet--and that's logbin, even if the phrase "log in" is never shown to the
user.
In my own application, each of the JSP pages that needs the user to be logged in
before coming to the page start with this:
<%
if (Util.verifyLogin(session, response)) {
// then we are logged in
... // other Java code needed for the page initialization
%>
...
<% }//then logged in %>
If Util.verifyLogin() determine--in whatever manner--that the user is not yet logged
in, it redirected to the login page (or whatever you are using to determine who the
user is) and returns false. It it returns false, the rest of the JSP page is skipped,
since the loggin page is being displayed.
In my case, Util.verifyLogin() determines that the user is logged in by checking that
session is not null and that a certain session attribute set by the login servlet is
not null.
In servlets, the test is
if (Util.verifyLogin(session, response)) { return; }
Merrill
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Sharing among session of ONE application
I think I know the answer to this, but I would like reassurance. I'm building a timesheet application using JSP, servlets, and Tomcat. So far, I been very careful to keep all non-contant data out of servlet class instance variables so everything should be thread safe and there should be no interference between simultaneous users of the application. Now, I've got some information I WOULD like to share across all sessions of the application (but not across other Tomcat applications). So, that should mean that all I really have to do is defined the information in instance variables (and remember when using it that it can change unexpectedly). Right? Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: communication issue between .jsp and servlet
session is an implicit object in a JSP page. Therefore, you should just reference session rather than "getting" it. Perhaps the get is creating a new session. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Tomcat 5 Service Fails on Windows 2000
I downloaded the Tomcat 5.0.16.exe binary (with installer) and installed it on my Window XP Pro workstation at home. It installed, started, and runs just fine. I then tried to do the same thing on my Windows 2000 workstation at work. The install completed without an error. However, attempting to start it from the Windows Service applet produces a message from Windows that "Could not start the service ... The service did not return an error...". The Stderr.log and Stdout.log logs created at installation time are still empty. There is nothing in the Event Viewer with than a warning that W32Time couldn't find a Domain Controller. Tomcat 5.0.16 is installed and runs standalone on this machine just fine, however that standalone version was not running when the service installation took place. Any ideas? Merrill Cornish - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Tomcat 5.0.16 Server Can't Find Keystore
Yesterday, in response to a post asking how to run Tomcat as a server, someone pointed out that the *.exe binary, which includes the installer, is now available. (Hooray!) So, I downloaded it, and it installed flawlessly. I had renamed my previous Tomcat 5.0.16 installation so the server version could be installed in parallel. I am using HTTPS, and I have enabled the proper connectors in server.xml as I had done before. However, with the Tomcat service started, when I start the application, it fails with the following entry in the stdout.log file: java.io.FileNotFoundException: C:\WINDOWS\system32\config\systemprofile\.keystore (The system cannot find the file specified) The error message is valid in that my .keystore is under C:\Document Settings. That keystore had been generated by the Java keytool utility using the instructions in Tomcat for establishing an SSL connector.. I tried generating another key, thinking maybe this version looked in a different place. However, the keytool failed claiming that the alias "Tomcat" already existed, implying it was looking C:\Document Settings. I have check server.xml and web.xml, but I can't find anything to specify where Tomcat is to look for the .keystore file. Anyone have any suggestions as to how to make Tomcat look in C:\Document Settings or how to make keytool generate a .keystore file in C:\WINDOWS\System32\config\systemprofile where it's looking? Merrill Cornish - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Really dumb question -- how do I set up Tomcat 5 to run as a service on NT?
Betty, As nearly as I can tell, Tomcat 4 was distributed for Windows as a .exe file which included an installer. That installer which could do the service install. However, Tomcat 5 is distributed (so far, at least) as a .zip file, which has no installer. I can run Tomcat 5 standalone, as I did Tomcat 4, but I haven't yet been able to run as a service yet. When I try to command line approach, it doesn't work--I think it's because the command line is too long. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[Off Topic] Java printing to network printer
I apologize for the off-topic question, but can someone point me to where I can find out how to print to a remote printer on the LAN from Java. While Java seems to have many "printing" classes, none of them appear to actually reference a physical printer. While that's obviously in keeping with the hardware-independent nature of Java, sometimes an application needs to route output to a specific location on the net. But how? Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How is catch{} code handled
George,
Unfortunately, your logic is flawed.
Yes, that's very clear at this point. :-)
I understand that the sendRedirect() does NOT terminate the execution
flow that it is in. That's why I follow each one with a return.
However, I think I now recognize my problem.
In my mind, I've always associated a catch{} with an exception and
nothing "escapes" from the exception. And that's true, assuming you did
NOT do what I did and disolve the exception into a simple message that
displayed as text on a JSP page. As I now see, in THAT case, the
catch{} DOES return, thereby allowing multiple sendRedirect()s to occurs.
Thank you for setting my thinking straight.
Merrill
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How is catch{} code handled
My sudden IllegalStateException problem turned out to be caused by my
error handling technique, but I'm not sure why.
When I started this project (as a way or learning JSP), I have
EVERYTHING in JSP pages, meaning that there was a lot of Java code in <%
... %> sections of the JSP page. I added an errorPage declaration to
each of my JSP pages to divert all errors to my standard error handling
page--and all was well.
Later, I decided to limit the JSP pages to HTML as much as possible and
move all of the Java program logic into servlets. I left the errorPage
declarations in the JSP pages, although there wasn't much left there to
throw an exception.
In the servlets, I used the standard try/catch constructs to intercept
exceptions. However, I decided I wanted the exceptions caught in
servlets to be handled by the same error page as the JSP pages used.
Rather than have EVERY catch{} clause do the redirect, I defined a
utility subroutine named errorPage() that collected various information
in the catch{} clause, then called sendRedirect() to the error page.
Separate from these catch{} clauses, whenever the processing in a
servlet was complete, it ended with a sendRedirect() to the next JSP
page followed immediately by a return. I had assumed that the
sendRedirect()s in the main servlet code were "safe" from the
sendRedirect() in the catch{} cause since--as I understood it--once the
exception was thrown and the catch{} entered, nothing else in the
servlet was processed.
However, my "IllegalStateException" experience suggests there is
something going on with catch{} that I don't understand. Or, as a
friend of mine used to say, "I don't understand all I know about that." :-)
To recap, I got an IllegalStateExceptioni pointing to a sendRedirect()
in a servlet until I effectively removed the sendRedirect() by returning
before the sendRedirect() could be reached. Only then did I see an
SQLException intercepted by a catch{} and redirected with
sendRedirect() to the error page.
Why did main servlet processing appear to continue (allowing the second
sendRedirect() to cause a problem) after the exception was triggered?
Merrill Cornish
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SuddenIllegalStateException: Solved(?)
Well--I think I've found the cause for my sudden IllegalStateException,
although I'm still not sure why.
Because it was claiming an IllegalStateException, and it was pointing to
the sendRedirect() statement, I assumed the sendRedirect() was the
CAUSE. So--
I started probing the code by inserting
response.sendRedirect();
return;
By putting this pair of statements in various places, I was able to
deduce that the problem was occurring in a subroutine that accessed the
MySQL database. Furthermore, if only the first part of the subroutine
was executed (as it would be with an invalid login name), it worked, but
if the full subroutine was executed (valid login name), it failed.
At that point, I noticed that if I clicked on the brower's Back Button,
the sendRedirect() that I had suspected of being the culprit had
actually worked. H. So, I tried simply inserting extra return
statements in the code rather than the sendRedirect()/return shown
above. Lo and behold, I got a SQLException from the suspect subroutine
I had been probing.
Shortly before the problem started occurring (remember the "suddenly"
part of my message subject?), I had removed a certain field from the
database table, but I was still asking JDBC to get() that field value.
That, of course, was an error (MY error) and fully worthy of an
exception, but the question was why did it cause the error it did.
I apears my error handling needs some work. I'm going to post a
separate question about catch{} to try to find out what I'm doing wrong.
In the meantime, thanks to Howard and Ben for their offers of help.
Merrill
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Re: Sudden IllegalStateException
Ben, Yes, I can post the code, but now I'm not sure that will help. Yesterday I tried my old standby debugging technique of commenting out virtually all of the code in the servlet. It worked. I then started uncommenting portions until it stopped working. For a while, I thought I was winning. I got it down to where if a call to one subroutine was commented out, it worked; but if the subroutine was called, the return would fail when it reached the sendRedirect() back in the servlet. Then I noticed that SOMETIMES a call to the subroutine would not fail. [sigh...] The subroutine in question does database access with no sendRedirect() or any other "funny business." Right now, I'm trying to further characterize the problem. I may still take you up on your offer of help (and thank you, by the way), but I need to do some work first. Thanks, Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Sudden IllegalStateException
Ben, I don't know if it's a good idea or not, but I separate the HTML stuff into the JSP pages and use the servlets solely for program logic. Therefore, my servlets never output content.. Instead they merely redirect to a JSP page which then contains only enough Java logic to collect the data it needs from session attributes. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Sudden IllegalStateException
Howard,
There are three sendRedirect() calls in the servlet. The first two
redirect back to the login page if with the login user id is not found
or the login password doesn't match. In both cases, the sendRedirect()
is immediately followed by a return. (I learned to use explicit returns
after sendRedirect() some time ago.)
The sendRedirect() that is throwing the error is the last statement in
the overall try{} block. There is a catch for SQLException which calls
a function that would call sendRedirect() to get to the error page, but
if we've gotten to the last statement in the try{} block, there was no
SQLException. The only thing after the try{}/catch{} is again a return.
Merrill
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Re: Sudden IllegalStateException
Howard, I had already read the misc.html#illegalstate. In my case, I KNOW the illegal state was triggered by sendRedirect() since that's what's in the trace back. Also, I've already verified that immediately before the call to sendRedirect(), both session and response are OK. I forgot to mention in the first post that I've already tried stopping and starting Tomcat, stopping and relaunching the browser, and recompiling all servlets. My question is WHY is sendRedirect() causing the problem. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Sudden IllegalStateException
I have been developing a JSP/servlet application using Tomcat 5.0.16. Over the past months, I felt that I had learned enough (partially with the help of this mailing list) about JSP, servlets, and Tomcat that I could debug most of the obsticales that popped up. Until this morning. I started addnig a new servlet several "levels" down. Suddenly, I started getting the following error: java.lang.IllegalStateException org.apache.coyote.tomcat5.CoyoteResponseFacade.sendRedirect(CoyoteResponseFacade.java:379) Timesheet.LoginServlet.doPost(LoginServlet.java:67) javax.servlet.http.HttpServlet.service(HttpServlet.java:763) javax.servlet.http.HttpServlet.service(HttpServlet.java:856) When I launch the application, the Tomcat HTML welcome page redirects via a refresh to my login.jsp page via https. That login page displays properly. When I fill in the login name and password and click on submit, I immediately get the above exception. The line number it references is the following: response.sendRedirect(Util.MAIN_MENU_PAGE_URL); where Util.MAIN_MENU_PAGE_URL is "/timesheet/mainMenu.jsp", a valid page URL. This sendRedirect() is the last thing the login servlet does after validating the login and collecting information about the logged in user from the database. This has all been working for months. The one time I got an illegal state exception before was when I accidently did something like session.getAttribute() when the session was invalid. However, the login servlet starts with HttpSession session = request.getSession(true); which is the ONLY time it's called with a true argument. I have also verified that immediately before the call to sendRedirect(), both the session and response variables have reasonable values. Can any one suggest what I may have changed to suddenly get an illegal state exception? Merrill Cornish - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [Q] Tomcat & ZoneAlarm?
Riaan, I run Tomcat with ZoneAlarm Pro at home and it works. Not only does Tomcat need to be able to access the Internet (even though it's not actually accessing anything outside the localhost) as Phil said, but the browser you are using also needs to be able to access the Internet. The two times I get "Page cannot be displayed" is 1) I've forgotten to start my standalone version of Tomcat (I still haven't succeeded in getting it to run as a service), or 2) I've forgotten and left ZoneAlarm's manual Internet lock on (the [Z|A] tray icon is a padlock). Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Thread Safe JSP/Servlets
>>> you have to go out of your way to declare instance variables in a JSP (by putting >>> them in a <%! //declaration block %> John, After I posted the question, I started browsing the generated _jsp file in earnest. I had decided that <% ... %> stuff was safe since it gets up in its own method rather than instance fields. Thanks for the reassurance. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Thread Safe JSP/Servlets
I understand how to write thread-safe software in general, but I suddenly realized that I don't understand what, if anything, Tomcat "shares" among different sessions (i.e., different users accessing the same JSP application) and would therefore be thread sensitive. For example, in my servlets, I have only constant class fields--no instance fields. All user-specific information is stored in session attributes that exist only between user login and logout. However, it finally dawned on me that my JSP pages are quietly being turned into servlets behind my back (this is despite my occassionally referencing the generated *_jsp files while debugging), and those servlets DO have instance fields. My specific question is whether Tomcat keeps the instance fields for JSP servlets separate by session. My more general request is for a pointer to "best practices" documentation on how to keep JSPs and servlets thread safe. Merrill Cornish - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How to: Tomcat 5.0.16 as Windows Service
Bill, Thanks for the information. I was worried about the command line length. Where can I find documentation for the various //?// commands? Thanks again, Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How to: Tomcat 5.0.16 as Windows Service
Bill,
Here's the Dr. Watson log for the failure of the install of Tomcat as a
service.
Application exception occurred:
App: E:\Program Files\Apache Group\Tomcat 5.0.16\bin\tomcat.exe
(pid=2032)
When: 12/24/2003 @ 10:01:13.045
Exception number: c005 (access violation)
*> System Information <*
Computer Name: MERRILL
User Name: Merrill Cornish
Terminal Session Id: 0
Number of Processors: 1
Processor Type: x86 Family 6 Model 8 Stepping 1
Windows Version: 5.1
Current Build: 2600
Service Pack: 1
Current Type: Uniprocessor Free
Registered Organization:
Registered Owner: Merrill Cornish
*> Task List <*
0 System Process
4 System
372 smss.exe
588 csrss.exe
612 winlogon.exe
656 services.exe
668 lsass.exe
872 svchost.exe
964 svchost.exe
1124 svchost.exe
1184 ccEvtMgr.exe
1328 spoolsv.exe
1424 mysqld-max-nt.exe
1496 navapsvc.exe
1596 Error 0xD022
1864 Explorer.EXE
1960 ccApp.exe
180 jusched.exe
184 Error 0xD022
220 Remind32.exe
1800 cmd.exe
508 HTMLKit.exe
3264 iexplore.exe
3724 cmd.exe
3568 drwtsn32.exe
3556 thunderbird.exe
2032 tomcat.exe
2336 drwtsn32.exe
*> Module List <*
(0040 - 0040d000: E:\Program Files\Apache
Group\Tomcat 5.0.16\bin\tomcat.exe
(70a7 - 70ad5000: C:\WINDOWS\system32\SHLWAPI.dll
(77c0 - 77c07000: C:\WINDOWS\system32\VERSION.dll
(77c1 - 77c63000: C:\WINDOWS\system32\msvcrt.dll
(77c7 - 77cb: C:\WINDOWS\system32\GDI32.dll
(77d4 - 77dcc000: C:\WINDOWS\system32\USER32.dll
(77dd - 77e5d000: C:\WINDOWS\system32\ADVAPI32.dll
(77e6 - 77f46000: C:\WINDOWS\system32\kernel32.dll
(77f5 - 77ff7000: C:\WINDOWS\System32\ntdll.dll
(7800 - 78086000: C:\WINDOWS\system32\RPCRT4.dll
*> State Dump for Thread Id 0xc4c <*
eax= ebx=00832430 ecx= edx=00832024 esi=0007
edi=
eip=00405971 esp=0012fce4 ebp=00833d74 iopl=0 nv up ei pl nz na
pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=
efl=0202
*** WARNING: Unable to verify checksum for E:\Program Files\Apache
Group\Tomcat 5.0.16\bin\tomcat.exe
*** ERROR: Module load completed but symbols could not be loaded for
E:\Program Files\Apache Group\Tomcat 5.0.16\bin\tomcat.exe
function: tomcat
00405953 40 inc eax
00405954 0057ff add [edi-0x1],dl
00405957 152c714000 adc eax,0x40712c
0040595c 83c40c add esp,0xc
0040595f 85c0 testeax,eax
00405961 0f858900 jne tomcat+0x59f0 (004059f0)
00405967 8b7d04 mov edi,[ebp+0x4]
0040596a 83c504 add ebp,0x4
0040596d 83c9ff or ecx,0x
00405970 46 inc esi
FAULT ->00405971 f2ae repne scasb
es:=??
00405973 8b54242c mov edx,[esp+0x2c]
00405977 8974241c mov [esp+0x1c],esi
0040597b f7d1 not ecx
0040597d 2bf9 sub edi,ecx
0040597f 8bc1 mov eax,ecx
00405981 8bf7 mov esi,edi
00405983 8bfa mov edi,edx
00405985 c1e902 shr ecx,0x2
00405988 f3a5 rep movsd
0040598a 8bc8 mov ecx,eax
*> Stack Back Trace <*
WARNING: Stack unwind information not available. Following frames may be
wrong.
ChildEBP RetAddr Args to Child
00833d74 505c3a45 72676f72 46206d61 73656c69 tomcat+0x5971
0x505c3a45
*> Raw Stack Dump <*
0012fce4 30 24 83 00 29 fe 12 00 - e5 4d e7 77 00 00 00 00
0$..)M.w
0012fcf4 00 00 00 00 10 00 00 00 - 83 54 40 00 06 00 00 00
[EMAIL PROTECTED]
0012fd04 07 00 00 00 58 3d 83 00 - 20 fd 12 00 24 fd 12 00
X=.. ...$...
0012fd14 92 c8 c3 77 38 3e 83 00 - e9 68 e7 77 00 00 00 00
...w8>...h.w
0012fd24 45 3a 5c 50 72 6f 67 72 - 61 6d 20 46 69 6c 65 73
E:\Program Files
0012fd34 5c 41 70 61 63 68 65 20 - 47 72 6f 75 70 5c 54 6f
\Apache Group\To
0012fd44 6d 63 61 74 20 35 2e 30 - 2e 31 36 5c 62 69 6e 5c
mcat 5.0.16\bin\
0012fd54 74 6f 6d 63 61 74 2e 65 - 78 65 20 2f 2f 52 53 2f
tomcat.exe //RS/
0012fd64 2f 54 6f 6d 63 61 74 35 - 00 00 00 00 00 00 00 00
/Tomcat5
0012fd74 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
0012fd84 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
0012fd94 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
0012fd
Re: How to: Tomcat 5.0.16 as Windows Service
Jacob, I tried your batch file for installing Tomcat 5 as a Windows service. I had to edit it to put double quotes around %EXECUTABLE% since my Tomcat is located under the \Program Files\ directory and the space in the pathname was messing up the command line parsing. With my standalone Tomcat stopped, the batch file runs fine (i.e., no output to STDERR, no error messages to STDOUT, ends by saying Tomcat is installed), but the following error dialog pops up: Apache Process Runner Apache Process Runner has encountered a problem and needs to close. We are sorry for the inconvenience. ... Please tell Microsoft about this problem. ... [Send Error Report]/[Don't Send] There is no Apache Tomcat5 service in the services list. I tried rebooting and running the batch file from a clean system, but the same thing happened. Any ideas? Merrill Cornish - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: 404: File Not Found = Stupidity?
[Sound of head pounding on keyboard...] Yes. I did forget to add the mapping for the new servlet. Mea culpa. I had even briefly thought about the server.xml and web.xml files--but then dismissed them as "they are already set up." If I had just taken a look. . . Thanks for the kick in the memory. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
404: File Not Found = Stupidity?
I'm running Tomcat 5.0.16 standalone on Windows XP Pro. My JSP/servlet application has been coming along nicely, but perhaps I've become complacent. The structure of the application is simple enough: The user starts with a JSP page and fills in a form. The form calls a companion servlet to process it. That servlet then launches the next JSP page which has its own servlet to process it, and so on. Today, I added a new JSP page and processing servlet pair. The page works, but clicking on the submit button brings up the 404-Page Not Found error message. The displayed name of the page not found is the correct one. Furthermore: * The servlet that can't be found is in the same package directory with all of the other servlets that do work. (Two other servlets in this directory have already been called before reaching the new JSP/servlet.) * The page request names are spelled correctly with the same capitalization. There are no inadvertent blanks in the names. * The servlet compiles cleanly. * The name of the servlet file matches the name of the class it holds. * Both Internet Explorer and Firebird display the 404 error. * I've stopped and restarted Tomcat. I've rebooted Windows. I've stopped and restarted the browsers. * The failing servlet is addressed with exactly the same URL as all of the servlets that are found except for the actual servlet name at the end. In everyway I can see, this new, failing servlet is exactly like all of its brothers, except the browser can't find it. Any suggestions? Merrill Cornish - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How to: Tomcat 5.0.16 as Windows Service
Bill, Yes, I should have thought of the --StdOutFile and --StdErrorFile arguments. However, specifying them does no good. The files are created, but they are empty. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How to: Tomcat 5.0.16 as Windows Service
OK, I'm answering myself. The first time I saw that page of jakarta.apache.org and tried it, it didn't work. I tried again just now, and the command line command did seem to work (although it looks like it's over the 256 byte limit). The result is a Tomcat entry in the services list, set for automatic, but not started. When I use the services display to start it, Windows claims that Tomcat starts and then immediately stops. There are no entries in the logs and on entries in the OS events viewer, so I have no idea of what it didn't like. I can still start and stop Tomcat in standalone mode. (I attempted the service install without any other form of Tomcat running.) With the service apparently installed, entering tomcat //TS//Tomcat5 doesn't appear to fail, but it doesn't appear to do anything either. Entering tomcat //DS//Tomcat5 does uninstall the service (as verified in the services display) as advertised. Is there any way of determining what is preventing the Tomcat service from running. (BTW, I did enter fully qualified pathnames in the //IS//Tomcat5 command line). Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How to: Tomcat 5.0.16 as Windows Service
Bill, I had seen that page before, but I'll have to admit I didn't understand it fully. It says, in part: " To install the service, you need to use the //IS// parameter. ... " tomcat //IS//Tomcat5 ... I know this sounds dumb, but is "//IS//" what you actually enter on the command line, or is it a place holder for a path? Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
How to: Tomcat 5.0.16 as Windows Service
I am current running Tomcat 5.0.16 standalone on Windows XP Pro. I would like to install it as a Windows service. All the documentation I can find dismisses it by saying that you are asked if you want it to run it as a service by the installer. The Tomcat 4.1 binary came as an .exe and had an installer; but the 5.0.16 binaries are offered as a ZIP file without installer. Any suggestions for how to install 5.0.16 as a Windows service? Merrill Cornish - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Problems with HTTPS in Tomcat 5
If you really want a trusted certificate, shop around. There are companies other than VeriSign. I found one for $50/year. Merrill Cornish - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Placement of JSP/HTML Files
Asad, You need to define a "context" in the conf/server.xml file: The path attribute represents the path that appears in the URL following "http://localhost"; while the docbase attribute represents the directory under webapps where the the JSP/HTML files will be found. Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Session "Goes Away" (?)
>>> my firewall (Zone Alarm Pro) was blocking session cookies. Interesting. I'm also using Zone Alert Pro. I'll try turning it off and see what happens. Thanks, Merrill - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Session "Goes Away" (?)
I'm running Tomcat 4.1.27 standalone on Windows XP Pro using IE. I've been developing my first web application in JSP with some success--then I decided to converted it into servlets. [sigh...] I tried following the examples in Dustin Callaway's INSIDE SERVLETS, Second Edition. The structure he proposes for the servlet is simple enough (detail omitted): 1. session = request.getSession(true); 2. if (session.isNew()), then output an HTML page. In this case, the page contains a form with my servlet as the ACTION destination. 3. Else (i.e., if not isNew()), process whatever the form returned. My problem is that if I print session, then I find that everytime I enter the servlet, I have a different session. If I print the result of getRequestedSessionId(), it's differnt too. Also, I've tried doing a session.setAttribute(), but it's always null on the return to the servlet. This all implies that I'm constantly getting a different session object. getMaxInactiveInterval() = 1800, so the session isn't being artificially invalidated by a ultra-short timeout. Any suggestions? Merrill Cornish - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
