Struts2学习笔记（3）——第一个 struts2工程

来源：互联网发布：摄像头劫持软件编辑：程序博客网时间：2024/06/18 09:37

工具：myeclipse、struts2 jar包（官网下或者myeclipse自带）

1、新建一个web project

这里写图片描述

2、导入所需jar包

在lib中导入如下包（标红的为必需的与常用的），复制到lib文件夹下即可。
这里写图片描述

3、编写web.xml

<?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>  <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> </web-app>

4、编写 struts.xml

在src文件夹下新建struts.xml。并写入以下代码：

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd"><struts>    <package name="default" namespace="/" extends="struts-default">        <action name="hello" class="com.test.action.HelloAction">            <result name ="success">/hello.jsp</result>        </action>    </package></struts>

5、编写action类
如图：在src下新建包com.test.action，并编写HelloAction.java类。
HelloAction.java

package com.test.action;import com.opensymphony.xwork2.ActionSupport;public class HelloAction extends ActionSupport {    /**     *      */    private static final long serialVersionUID = 1L;    @Override    public String execute() throws Exception {        // TODO Auto-generated method stub        System.out.println("hello");        return SUCCESS;    }}

6、编写前台jsp页面
在WebRoot文件夹下编写hello.jsp及index.jsp
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>    <form action = "hello">    <input type="submit" value = "submit"/>    </form>  </body></html>

hello.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 'hello.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>    hello<br>  </body></html>

7、部署工程到服务器上
将工程部署到tomcat等服务器上，在浏览器输入index.jsp
这里写图片描述
点击按钮即跳转到hello.jsp

结束！

0 0