Article:		Java Web Applications
Subject:		HTTP Status 404 - /
Date:		2006-08-25 12:01:14
From:		dmersino
Response to: HTTP Status 404 - /
I just had this same problem. The message I got was identical and the command prompt which had the logs showed no exceptions at all. What's strange is that it was working just fine an hour prior. I tried rebooting, recompiling, etc., etc. Finally I remembered that I had changed the name of a Filter that I was using, that was referenced in the web.xml file. Once I corrected this in my web.xml, everything returned to normal. Normally when a class defn is incorrect you'll get a classNotFound or other exception in the logs. I don't know if this is just a bug in Apache when loading filters or if it will happen with other classes. So, you may want to try scanning your web.xml for any mis-spelled or missing classes that the server is trying to load.

Showing messages 1 through 2 of 2.

• HTTP Status 404 - /
  2006-08-26 00:08:15  aadityasharma [View]
  
  
  type Status report
  
  message //
  
  description The requested resource (//) is not available.
  
• HTTP Status 404 - /
  2007-02-13 07:37:14  ritanegi [View]
  
  
  hello
  this is the servlet i wanted to run
  
  -------------------------------------------------
  import java.io.IOException;
  import java.io.PrintWriter;
  
  import javax.servlet.ServletException;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  /*
  * Created on Jan 18, 2007
  *
  * TODO To change the template for this generated file go to
  * Window - Preferences - Java - Code Style - Code Templates
  */
  
  /**
  * @author Administrator
  *
  * TODO To change the template for this generated type comment go to
  * Window - Preferences - Java - Code Style - Code Templates
  */
  public class HelloServlet extends HttpServlet {
  public void doGet (HttpServletRequest req,
  HttpServletResponse res)
  throws ServletException, IOException
  {
  PrintWriter out = res.getWriter();
  
  
  out.println("Hello, world!");
  out.close();
  }
  }
  -------------------------------------------------
  this the web.xml file i created
  -------------------------------------------------
  
  <?xml version="1.0" encoding="ISO-8859-1"?>
  <web-app xmlns="http://java.sun.com/xml/ns/j2ee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
  version="2.4">
  
  <servlet>
  <servlet-name>hello</servlet-name>
  <servlet-class>project.HelloServlet</servlet-class>
  </servlet>
  <servlet-mapping>
  <servlet-name>hello</servlet-name>
  <url-pattern>/servlet/project/HelloServlet</url-pattern>
  </servlet-mapping>
  </web-app>
  -------------------------------------------------
  this is the copy of manager saved by the name MyApp which is my project name too
  -------------------------------------------------
  <!--
  Context configuration file for the Tomcat Manager Web App
  
  $Id: manager.xml,v 1.2 2004/02/20 17:09:29 remm Exp $
  
  
  -->
  - <Context path="/Project" docBase="HelloServlet" debug="0" privileged="true">
  - <!-- Link to the user database we will get roles from
  -->
  <ResourceLink name="users" global="UserDatabase" type="org.apache.catalina.UserDatabase" />
  </Context>
  -------------------------------------------------
  my query is dat do i need to create n html file to display my output.......i haven't done it till now....i just went to my browser which is IE....n i have tomcat 5.0 installed in my system entered the url given below
  
  http://127.0.0.1:8080/example/servlet/HelloServlet
  
  but received n error report-http status 404 in the following form
  
  type Status report
  
  message /example/servlet/HelloServlet
  
  description The requested resource (/example/servlet/HelloServlet) is not available.
  
  kindly check my servlet file coding as well as the web.xml file coding whether i have correctly coded them....the error may be thr due to wrong assignment.....i m just the beginner in web services
  
  i'll be grateful to u
  rita negi