struts2_HelloWorld

第一个Struts2程序-Hello

　　1.创建web工程struts2-01-Hello

　　2.导入jar包到bin目录,jar地址:

　　https://files.cnblogs.com/files/aihuadung/struts%E6%89%80%E9%9C%80jar%E5%8C%85.zip

　　3.配置web.xml文件

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app id="WebApp_ID">

    <display-name>struts2_01_Hello</display-name>

   <filter>

      <filter-name>struts2</filter-name>

   <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>

   </filter>

   <filter-mapping>

      <filter-name>struts2</filter-name>

      <url-pattern>/*</url-pattern>

   </filter-mapping>

    <welcome-file-list>

       <welcome-file>index.html</welcome-file>

       <welcome-file>index.htm</welcome-file>

       <welcome-file>index.jsp</welcome-file>

    </welcome-file-list>

</web-app>

web.xml

　　4.src目录下创建struts.xml文件

　　5.在index.jsp文件中插入

 <a href="hello.action" method="post">hello.action</a> <br>

　　6.创建执行HelloAction的结果文件hello.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

  <head>

    <title>hello</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>

    hello World <br>

  </body>

</html>

hello.jsp

　　7.创建HelloAction.java

package com.ahd.action;

 

import com.opensymphony.xwork2.Action;

import com.opensymphony.xwork2.ActionSupport;

 

public class HelloAction{

 

         public String execute() throws Exception {

                   // TODO Auto-generated method stub

                   return “SUCCESS”;

         }

}

HelloAction

　　8.编辑struts2.xml文件

<?xml version="1.0" encoding="UTF-8"?>

 

<!DOCTYPE struts PUBLIC

   "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"

   "http://struts.apache.org/dtds/struts-2.3.dtd">

  

<struts>

   <package name="helloWorld" extends="struts-default" namespace="/">

      <action name="hello" class="com.ahd.action.HelloAction">

        <result name="success">/hello.jsp</result>

      </action>

   </package>

</struts>

struts2.xml

　　9.运行结果

　　点击后