HTTP 404 Error while running Servlet Application

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04-11-2009, 10:22 PM
shuklajayb

HTTP 404 Error while running Servlet Application

Hi I'm getting HTTP 404 error code while running a Servlet Application.

folder structure is as follows

apache-tomcat-6.0.16
|--webapps
|--Ch01
|--WEB-INF
|--src
|--com
|--FirstServlet.java
|--classes
|--com
|FirstServlet.class

web.xml is as followos:

web.xml
=======

<servlet>
<servlet-name>FirstServlet</servlet-name>
<servlet-class>com.FirstServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>FirstServlet</servlet-name>
<url-pattern>/firstservlet</url-pattern>
</servlet-mapping>.

Please Help me in resolving this.

Thanks in Advance.
04-27-2009, 03:50 PM
devin

I remember when I first started working with servlets and tomcat and I was getting 404 errors but I can't remember why.

I tried your servlet mapping and it worked on my version of tomcat, but I am using tomcat5.5. Not sure if something changed with the version you are using.

What is the content of the servlet?

Any errors when you reload the webapp?

Here is the content of the servlet I tried:

package com;

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

/**
* This is a test servlet
*
*/

public class FirstServlet extends HttpServlet {

@Override public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {

response.setContentType("text/html");

PrintWriter out = response.getWriter();

String docType = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 " +
"Transitional//EN\">\n";

String title = "First Servlet";
out.println
(docType +
"<html>\n" +
"<head><title>" + title + "</title></head>\n" +
"<body BGCOLOR=\"#FDF5E6\">\n" +
"<h2>" + title + "</h2>\n" +
"Hey this is the first servlet!"+
"</body></html>");
}

@Override public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}

}
05-06-2009, 01:10 PM
saifuddin.merchant

The servlet code looks correct. What is the link that you are hitting when you get the 404 error?

(The URL is case sensitive - just check if you are hitting the right URL)
06-24-2009, 05:19 PM
devin

This could also be a security issue. Do any pages work for the Site?

Try setting security to no in your tomcat start up script:
TOMCAT5_SECURITY=no

You shouldn't do this for production systems but makes things easier when just trying to learn stuff.

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