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Old 09-18-2004, 09:05 AM   #1 (permalink)
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Location: I dunno, there's white people around me saying "eh" all the time
Tomcat Problems

I've just started using Tomcat and servlet.

I've installed Tomcat in E:\Program Files\Apache Group\Tomcat 5.0
Default Java is J2SDK1.4.2_05
I copied servlet-api.jar from Tomcat's library and put it into J2SDK1.4.2_05's library

Here's my java file
Code:
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class Dispatcher
{
	public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
	{
		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		
		out.println(ServletUtilities.getHTMLHead("Web Application") +
					"<BODY>\n" +
					"<b>" + ServletUtilities.getFont() + 
					"You've entered:" + request.getParameter("integer") +
					"</b></span>\n" +
					ServletUtilities.getTail());
	}
	
	public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
	{
		doGet(request, response);
	}
}
Here's my web.xml
Code:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app      PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"     "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
    <servlet>
      <servlet-name>Dispatcher</servlet-name>
      <servlet-class>Dispatcer</servlet-class>
    </servlet>
    <servlet-mapping>
      <servlet-name>Dispatcher</servlet-name>
      <url-pattern>/Dispatcher/*</url-pattern>
    </servlet-mapping>
</web-app>
I've added the following to server.xml in the conf folder
Code:
<Context path="E:/Program Files/Apache Group/Tomcat 5.0/webapp docBase="/webapp" debug="0" reloadable="true">
</Context>
And when the form passes the param to the Java file, it either post a 404 error or a 500 error. The 500 error posted by Tomcat states that there was an exception regarding invokers
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Old 09-18-2004, 09:26 AM   #2 (permalink)
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I'm in unfamiliar territory here but did you miss a quote from:
Code:
<Context path="E:/Program Files/Apache Group/Tomcat 5.0/webapp(HERE??) docBase="/webapp" debug="0" reloadable="true">
</Context>
?
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Old 09-21-2004, 02:29 AM   #3 (permalink)
Crazy
 
Location: Copenhagen, Denmark
Looks like he did forget a quote there. My suggestions are

A) No need to edit your server.conf for this webapp. Just give it it's own directory under webapps
B) If that doesn't work Try taking all the ServerUtilities stuff out so you can better diagnose your problem.

If none of those work. PM me and I can have a look at your whole source tree
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Old 09-21-2004, 05:23 AM   #4 (permalink)
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Location: I dunno, there's white people around me saying "eh" all the time
I upgraded Tomcat and didn't change anything in the server.xml file. Turns out that I forgot to extend the java class to HttpServlet
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Old 09-21-2004, 07:09 AM   #5 (permalink)
Crazy
 
Location: Copenhagen, Denmark
Whoops. I just saw that. Nice catch.
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Old 09-21-2004, 02:59 PM   #6 (permalink)
Junkie
 
Maybe related or maybe not, but when I try to install Jakarta, the installer says there's no JDK installed and that I need to set a JAVA_HOME environment variable and exits. I've installed J2EE, which presumably should have set JAVA_HOME, but it didn't. I'm clueless as to how to get this thing to work.
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Old 09-21-2004, 06:18 PM   #7 (permalink)
Upright
 
There is no reason to presume that installing the jdk will set JAVA_HOME for you. You should be ok once you set that environment variable. If you are using Linux, just stick it in /etc/profile.
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Old 09-21-2004, 06:29 PM   #8 (permalink)
Junkie
 
The thing is, I don't know how to set an environment variable in Windows XP.
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Old 09-22-2004, 03:24 AM   #9 (permalink)
Crazy
 
Location: Copenhagen, Denmark
Oh that is not too tricky. Lets see I am a bit rusty. Try this: Right click my computer; Click on the 'Advanced' tab at the top; at the bott om there should be a button 'Enviromental Variables'
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Old 09-22-2004, 06:12 AM   #10 (permalink)
Junkie
 
Thanks, CCJ. I was trying to do it from the command line. Makes me wonder why our smart-alecky tech support people find it so hard to give a straight answer like that.
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Old 09-22-2004, 04:08 PM   #11 (permalink)
Upright
 
FYI, I also note that you misspelled "Dispatcher" in your web.xml's servlet-class tag.
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