Struts2入门示例(Myeclipse)

1.新建Web项目在lib导入struts-2.3.37核心基础jar包

2.在WebRoot新建2个JSP

demo1.jsp

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

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

    <title>Struts2入门</title>
  </head>

  <body>
      <h1>Struts入门</h1>
      <a href="${pageContext.request.contextPath }/strutsDemo1.action">访问Struts的action</a>
  </body>
</html>

demo2.jsp

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

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

  </head>

  <body>
      <h1>跳转成功！</h1>
  </body>
</html>

3.在项目中的web.xml中添加代码

<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>

4.建包建类

package com.sve.struts2;

public class Demo1 {
    public String execute() {
        System.out.println("方法执行了");
        return "success";
    }
}

注意：方法名必须为execute，返回值必须为String，且public

5.在src下创建struts.xml

<?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="demo" namespace="/" extends="struts-default">
        <action name="strutsDemo1" class="com.sve.struts2.Demo1">
            <result name="success">/demo2.jsp</result>
        </action>
    </package>
</struts>

在action中class为你建包名.类名，name为demo1.jsp中访问链接，无须加.action

在result中，name的值为类中的返回值

6.运行项目，访问demo1.jsp，点击链接访问