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servlets not running

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dexter195

dexter195

Programmer
Jun 18, 2003
220
EU
hi, im new to tomcat 5. im having problems running servlets.
i can run jsp and html files from the following location

and i can run this over the network, when i substitute my ip address for localhost, without problems.

the class paths are set up propperly as far as i can see but here they are just in case.

***************************
CATALINA_HOME
C:\Tomcat 5.0;
****************************

****************************
CLASSPATH
C:\Tomcat 5.0\common\lib\servlet-api.jar;

C:\Program Files\Java\jdk1.5.0\jre\lib\ext\servlet.jar\;

C:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes;

%CATALINA_HOME%\common\lib\servlet-api.jar;
****************************

****************************
Path
C:\Program Files\Java\jdk1.5.0\jre\lib\ext\servlet.jar;
****************************



here is the web.xml file

Code: 
<web-app>
<display-name>A simple Web Application</display-name>
   <servlet>
      <servlet-name>ServletTest</servlet-name>
      <servlet-class>test.ServletTest</servlet-class>
   </servlet>
  
  <welcome-file-list>
    <welcome-file>ServletTest.html</welcome-file>
  </welcome-file-list>
</web-app>

the package is in the WEB-INF/classes/test/ServletTest folder.

This is the ServletTest.java file

Code: 
package test;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class ServletTest extends HttpServlet
{
	// the doGet() method is overwritten 
	public void doGet(HttpServletRequest httpServReqRequest, HttpServletResponse httpServResResponce) throws ServletException, IOException
	{
		PrintWriter pwOutput = httpServResResponce.getWriter();
		pwOutput.println("Hello World");
		
	}
}

the ServletTest.htm is in the ROOT folder of tomcat 5

Code: 
//ServletTest.htm
<HTML>
	<HEAD>
		
		<META http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
		
		<TITLE>
			Untitled Document
		</TITLE>
		
	</HEAD>

	<BODY>
	
		<FORM ACTION="/servlets/test/ServletTest" METHOD="GET">
			<INPUT TYPE="SUBMIT" VALUE="Go....">
		</FORM>
	
	</BODY>
</HTML>

my appologies for this being exreamly long but im at a loss as to why it wont run.

thanks in advance for any help on this.

dexter
 
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3 things :

1) Make sure that your ServletTest.class is in this folder :
WEB-INF/classes/test/

2) You need to add a servlet-mapping to your web.xml :

Code: 
<web-app>
<display-name>A simple Web Application</display-name>
   <servlet>
      <servlet-name>ServletTest</servlet-name>
      <servlet-class>test.ServletTest</servlet-class>
   </servlet>
   <servlet-mapping>
       <servlet-name>ServletTest</servlet-name>
       <url-pattern>/servlets/ServletTest</url-pattern>
   </servlet-mapping>
  
  <welcome-file-list>
    <welcome-file>ServletTest.html</welcome-file>
  </welcome-file-list>
</web-app>

and change this :

<FORM ACTION="/servlets/test/ServletTest" METHOD="GET">

to :

<FORM ACTION="/servlets/ServletTest" METHOD="GET">

The URL that you hit the servlet with directly maps to the <url-pattern> in your web.xml

Good luck !



--------------------------------------------------
Free Database Connection Pooling Software
 
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cheers again sedj,

i got them working last nite by putting in the servlet-mapping, but didnt have time to put a post saying that (so my appoligies for wasting your time, but at least someone else may benifit).
i was wondering if you could help me with this part though.

im trying to get them to run in a different folder.

e.g. %TOMCAT%\ROOT\NewFolder\

instead of running the application from
%TOMCAT%\ROOT\

im running my html file from this location

i have my WEB-INF folder with the web.xml and the classes and the lib folder in it.

however when i run the servlet from my html file it seems to jump out of this folder and back into the ROOT folder and looks for the servlet in the WEB-INF foder there although i havnt specified this anywhere. do i need to insert a new host of some kind in the server.xml???

oh ye in the above code you have for the web.xml file, i found that if i left the
/servlets/ in it wouldnt work and i also have the servlets running outside of a package (im running Tomcat 5.0.28) i was told in many places you couldnt do this but i tried it out and you can.

Code: 
   <!-- Servlet definitions -->
   <servlet>

      <servlet-name>ServletTest</servlet-name>
      <servlet-class>ServletTest</servlet-class>
           
	</servlet>

   <!-- Servlet mappings -->
   <servlet-mapping>
      <servlet-name>ServletTest</servlet-name>
      <url-pattern>ServletTest</url-pattern>
   </servlet-mapping>

thanks again for your help

dexter
 
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