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i know its a very common question as i find many questions relating to this in several forums, including SO. but i have not found a solution yet my web.xml (located in WEB-INF)
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>SMSProjectNew</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
<servlet>
<description></description>
<display-name>ReceiveMessagesServlet</display-name>
<servlet-name>ReceiveMessagesServlet</servlet-name>
<servlet-class>com.sendreceive.ReceiveMessagesServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ReceiveMessagesServlet</servlet-name>
<url-pattern>/ReceiveMessagesServlet</url-pattern>
</servlet-mapping>
</web-app>
the html page index.html, located in WebContent folder
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
The application started successfully version 1:27
<form action="/ReceiveMessagesServlet" method="post">
<input type="text" name="number"/>
<input type="text" name="message"/>
<input type="submit" name="submit"/>
</form>
</body>
</html>
finally the servlet, ReceiveMessagesServlet, located in src\com.sendreceive package com.sendreceive;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class ReceiveMessagesServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
public ReceiveMessagesServlet() {
super();
// TODO Auto-generated constructor stub
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
processRequest(request,response);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
processRequest(request,response);
}
protected void processRequest(HttpServletRequest request,
HttpServletResponse response) {
String responseMessage = request.getParameter("message");
String responseNumber = request.getParameter("number");
System.out.println(responseMessage+responseNumber);
}
}
i have installed the tomcat plugin in eclipse. when i right click on the project and then click on run the project on server. tomcat server starts in eclipse and the index.html page is shown..but when i enter some values in the fields and click submit..it gives the 404 error..i have been struggling from past 2 hours..kindly help..also..fyi, i am using this tutorial http://www.ibm.com/developerworks/opensource/library/os-eclipse-tomcat/index.html
You are getting 404 error because of the action="/ReceiveMessagesServlet", please remove the slash. Try with action="ReceiveMessagesServlet".
When you add a slash to URL pattern then the container will look for a web application deployed with name 'ReceiveMessagesServlet'.Since this not there you will receive 404 error.
Errors in your servlet may cause Tomcat to mark it as unavailable as I got in my server log:
You should look the log for reasons. In my case a missing jar with some test classes.
When you deploy your application into servlet container, your URLs may be prefixed by the context path identifying your application among other applications in that container (i.e.
/ReceiveMessagesServletbecomes/MyApp/ReceiveMessagesServlet).Therefore you should take that possibility into account and modify your URLs accordingly, for example, with JSTL's
<c:url>:Alternatively, without JSTL: