用servlet的方式写了一个HelloWord，显示404错误

Question

我手工用tomcat自己部署了一个程序，编译也没有问题，程序如下：

package com.hu;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class Hello extends HttpServlet{
public void doGet(HttpServletRequest req, HttpServletResponse res){
try {
PrintWriter pw = res.getWriter();
pw.println("hello world!");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void doPost(HttpServletRequest req, HttpServletResponse res){
this.doGet(req, res);
}
}

在地址栏中输入http://localhost:8080/myWebSite/hello，出现404错误
web.xml的配置如下：

<?xml version="1.0" encoding="ISO-8859-1"?>

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">

Welcome to Tomcat

Welcome to Tomcat

 <servlet>
  <servlet-name>hello</servlet-name>
  <servlet-class>com.hu.Hello</servlet-class>

  <servlet-mapping>hello</servlet-mapping>
  <url-pattern>/hello</url-pattern>

Answer 1

也许部署的应用名字错了吧。