Programming Forums - Probelm with program execution in TOMCAT

I am using Tomcat and I am facing the folowing probelm with this simple code to display the parameters entered on a html page by invoking a servlet...

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My file name(html) is ThreeParamsForm.html which contains (PLaced in my web application folder)
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>Collecting Three Parameters</TITLE>
</HEAD>
<BODY BGCOLOR="#FDF5E6">
<H1 ALIGN="CENTER">Collecting Three Parameters</H1>

<FORM ACTION= "ThreeParams" method = get>

First Parameter: <INPUT TYPE="TEXT" NAME="param1"><BR>
Second Parameter: <INPUT TYPE="TEXT" NAME="param2"><BR>
Third Parameter: <INPUT TYPE="TEXT" NAME="param3"><BR>
<CENTER>
<INPUT TYPE="SUBMIT">
</CENTER>
</FORM>

</BODY>
</HTML>

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My second file(servlet) name is ThreeParams.java which contains (PLaced in web-inf/src)
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package coreservlets;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

/** Simple servlet that reads three parameters from the
* form data.
*/

public class ThreeParams extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String title = "Reading Three Request Parameters";
//ServletUtilities.headWithTitle(title) +
out.println(
"<BODY BGCOLOR=\"#FDF5E6\">\n" +
"<H1 ALIGN=CENTER>" + title + "</H1>\n" +
"<UL>\n" +
" <LI><B>param1</B>: "
+ request.getParameter("param1") + "\n" +
" <LI><B>param2</B>: "
+ request.getParameter("param2") + "\n" +
" <LI><B>param3</B>: "
+ request.getParameter("param3") + "\n" +
"</UL>\n" +
"</BODY></HTML>");
}
}

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and my web.xml contains the following entry for this file
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<servlet>
<servlet-name>HelloServlet3</servlet-name>
<servlet-class>coreservlets.HelloServlet3</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>ThreeParams</servlet-name>
<url-pattern>/ThreeParams</url-pattern>
</servlet-mapping>

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When I run using TOMCAT I get the follwing error
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HTTP Status 404 - /servlet/coreservlets.ThreeParams

type Status report

message /servlet/coreservlets.ThreeParams

description The requested resource (/servlet/coreservlets.ThreeParams) is not available.
Apache Tomcat/5.0.25

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How do i make it work
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Regards.
Hemanth
[ http://javahome1.tripod.com/javahome.htm ]

hemanth.balaji@gmail.com