RE: Upgrading from jserv to tomcat
Hum... before anyone can help... you need to explain exactly what the problem is. I migrated from jserv to tomcat about 9 months ago (the tomcat version was 3.1 back then). Most of the trouble I ran into was related to Tomcat config. I had a pretty easy time with porting the code. -Duck -Original Message- From: Priyanka Gupta [mailto:[EMAIL PROTECTED]] Sent: Wednesday, June 06, 2001 4:15 PM To: [EMAIL PROTECTED] Subject: Upgrading from jserv to tomcat Hello I'm very new to this field and have got to upgrade an already exsisting system to Tomcat! The person working on the project before me was using Apche JServ which now i have to roll on to Tomcat on an NT workstation! It would be really nice if someone can help me through coz I'm really stuck up and am unable to find a way out! Thanks Priya _ Get your FREE download of MSN Explorer at http://explorer.msn.com
RE: resultset Question
Kevin,
There
are 2 problems with your message. First, this question is extremely off
topic for this mailing list. Second, you do not say what kind of errors
and/or results you get by executing your current code. You simply say you
"can't seem to grab the data". Not very helpful.
But
since I hate it when people just scream "off topic"... Take a look at the api
documentation for java.sql.ResultSet.next().
The next() method needs to be called
before you start calling the get*()
methods.
-Duck
-Original Message-From: Kevin Fonner
[mailto:[EMAIL PROTECTED]]Sent: Monday, May 14, 2001 5:16
PMTo: [EMAIL PROTECTED]Subject: resultset
Question
I want to grab just the first record in a Query
of my database. I thought that this would be pretty
simple???
Acording to my books they said that after
executing...
resultSet = statement.executeQuery("SELECT *
FROM userfolders WHERE username=\'" + userName + "\'");
That resultset would contain the first
record. But I can't seem to grab the data. Below is a sample of my code
that I think pertains to my problem. If anybody has any ideas I would
appreciate them
resultSet = statement.executeQuery("SELECT * FROM
userfolders WHERE username=\'" + userName +
"\'");dFolder =
resultSet.getString("folder");dModule =
resultSet.getString("dmod");dModulePath =
resultSet.getString("dmod_path");
Thanks,
Kevin
RE: debugging servlets
I also find that defining an evironment var works too. For windows try: set JAVA_COMPILER=NONE -Original Message- From: Benot Jacquemont [mailto:[EMAIL PROTECTED]] Sent: Wednesday, April 04, 2001 11:42 AM To: [EMAIL PROTECTED] Subject: RE: debugging servlets You have to use the -Djava.compiler=NONE command line option in your java command line in the tomcat.bat/tomcat.sh Benot -Message d'origine- De : Christoph Kukulies [mailto:[EMAIL PROTECTED]] Envoy : mercredi 4 avril 2001 17:38 : [EMAIL PROTECTED] Objet : debugging servlets What was again the magic modification one has to make to allow a more descriptive line in backtrace rather than '(compiled code)' when one gets for example: java.lang.NullPointerException at java.util.Arrays.sort(Compiled Code) at Some.doGet(Compiled Code) at Some.doPost(Compiled Code) at javax.servlet.http.HttpServlet.service(Compiled Code) at javax.servlet.http.HttpServlet.service(Compiled Code) at org.apache.tomcat.core.ServletWrapper.handleRequest(Compiled Code) at org.apac -- Chris Christoph P. U. Kukulies [EMAIL PROTECTED]
RE: detecting shutdown
Instead of looking for something Tomcat/Serlvet2.2 specific, how about using Runtime.addShutdownHook(Thread)? My vm version is 1.2.2 so I have not been able to use this new feature. I was forced to use the (deprecated) Runtime.runFinalizersOnExit() method instead. Let me know if you have any luck with addShutdownHook(). hth, -Duck -Original Message- From: Daniel Lopez [mailto:[EMAIL PROTECTED]] Sent: Wednesday, March 14, 2001 11:41 AM To: [EMAIL PROTECTED] Subject: Re: detecting shutdown Hi David, AFAIK there's no such a thing in any servlet container that I've worked with, but I might be wrong as my experience with Tomcat is quite limited. However, this wouldn't be a logical option as the same that you say about unloaded!=tomcat stopping can be said of loaded. AFAIK loaded!=Tomcat just started but it just means tomcat just loaded the servlet. Thus, if Tomcat decides to unload/reload your servlet for any reason and then tomcat is stopped you would end up with multiple initialisations and just one finalisation. Ummm, I think that with JSDK 2.3 you might try to do what yoy want with the class ServletContextListener, which is notified when the context is initialised or destroyed. With JSDK 2.2 I'm not sure how could one verify that everything is really shutting down before clearing things up. We solved it by using just ONE servlet which acts as ServletController and who initialises everything when being loaded and cleans everything when unloaded, but I understand this is not a general solution. I'm afraid I can't help you much with JSDK2.2. May be someone out there? ;) regards, Dan David Wall wrote: Is there something like the web.xml's "load on startup" that can be triggered when the Tomcat has been requested to shutdown? I'd like to be able to do "global" cleanup in such a situation. I know that an unloaded servlet will be called, but it's not true that being unloaded means that Tomcat is stopping. Thanks, David - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
RE: More on JServ to Tomcat
Brett, I recently migrated from JServ to Tomcat as well. The migration was smooth, and I'm now working with the latest servlet spec... but I found JServ to be more stable. Anyway... to answer your question, try putting the following in your web.xml file: servlet servlet-nameCallClient/servlet-name servlet-classcom.company.clients.commpilot.servlets.CallClient/servle t-class /servlet servlet-mapping servlet-nameCallClient/servlet-name url-pattern/CallClient/url-pattern /servlet-mapping In general, the "Java Servlet Specification" is a good reference for the format of the web.xml file. good luck, -Duck -Original Message- From: Brett W. McCoy [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 27, 2001 9:34 AM To: [EMAIL PROTECTED] Subject: More on JServ to Tomcat In my JServ properties file, there is a section on servlet aliasing, like this: servlet.CallClient.code=com.company.clients.commpilot.servlets.CallClien t Does anyone know if this the same as the servlet mapping statement in the web.xml file? If not, what would be the equivalent? -- Brett http://www.chapelperilous.net/~bmccoy/ --- We really don't have any enemies. It's just that some of our best friends are trying to kill us. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
RE: my html FORM ACTION= can't find my servlet
I'm not familiar with that book or the examples... but try: FORM ACTION="/examples/servlet/ThreeParams" Note the "/" at the begining of the action. This makes an absolute reference... otherwise, your reference is relative. hope it helps, -Duck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Friday, December 15, 2000 5:23 PM To: tomcat mailing list Subject: my html FORM ACTION= can't find my servlet I am working on the "Three Parameters" servlet in Marty Hall's book (p.69) and the servlet is working great when I call it from the "Location" line of the browser such as: http://localhost:8080/examples/servlet/ThreeParams?param1=bubbaparam2=j imboparam3=janiesue But I can't find the secret code to put in the ACTION argument of the FORM tag. The book recommends : FORM ACTION="servlets/coreservlets.ThreeParams" which I tried unsuccessfully. (Netscape gives me a variety of "unable to find directory or file" messages) Then I removed the package statements and re-compiled with them in the base directory where I found the working examples: C:\\tomcat\webapps\examples\WEB-INF\classes I've tried all these variations, with forward and back slashes, and with/without double quote marks and with/without leading slashes: ThreeParams servlets/ThreeParams examples/servlets/ThreeParams When I used "ThreeParams", Netscape said it couldn't find file or directory C:\\tomcat\webapps\examples\WEB-INF\classes, which would have been the correct directory. I tried "ThreeParams.class" and it produced the correct line at the location line of the browser, but the output was garbled, strange characters, etc. Any suggestions would be appreciated. Thanks. Michael Brubaker, Java Developer Wannabe, Orlando, Florida Win98/Tomcat 3.2.1/JDK1.3/Netscape 4.75
