javaservlet配置问题

web.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
    xmlns="http://java.sun.com/xml/ns/javaee" 
    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">
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  
  <!-- 向Tomcat报告，我这个应用里面有这个servlet,名字叫做HelloServlet，具体的配置如下 -->
  
  <servlet>
          <servlet-name>HelloServlet</servlet-name>
          <servlet-class>com.servlet.zyz.HelloServlet</servlet-class>
  </servlet>
  <servlet-mapping>
          <servlet-name>HelloServlet</servlet-name>
          <url-pattern>/hello</url-pattern>
  </servlet-mapping>
</web-app>

HelloServlet.javapackage com.servlet.zyz;


import java.io.IOException;

import javax.servlet.Servlet;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class HelloServlet implements Servlet {

    public void destroy() {
        // TODO Auto-generated method stub
        
    }

    public ServletConfig getServletConfig() {
        // TODO Auto-generated method stub
        return null;
    }

    public String getServletInfo() {
        // TODO Auto-generated method stub
        return null;
    }

    public void init(ServletConfig arg0) throws ServletException {
        // TODO Auto-generated method stub
        
    }

    public void service(ServletRequest arg0, ServletResponse arg1)
            throws ServletException, IOException {
        // TODO Auto-generated method stub
        System.out.println("Hello Servlet start....");
        
    }


}

index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'index.jsp' starting page</title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->
  </head>
  
  <body>
    This is my JSP page. <br>
  </body>
</html>

一纸高中万里风，寒窗读破华堂空。莫道长安花看尽，由来枝叶几相同？

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原文地址：https://www.cnblogs.com/byczyz/p/11230278.html