stuts2注解+ajax+jquery不刷新获取数据

//action代码
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;

import com.opensymphony.xwork2.ActionSupport;

@ParentPackage(value="json-default")
@Namespace("/")
public class AjaxAction extends ActionSupport{

private static final long serialVersionUID = 1L;
private String message;

@Action(value="list",results = {@Result(name="list",type="json")})
public String list(){
this.message="这是ajax获取的数据";
return "list";
}

public String getMessage() {
return message;
}

public void setMessage(String message) {
this.message = message;
}
}

 //jsp页面代码

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  <script type="text/javascript" src="jquery-1.7.js"></script>
  </head>
 
  <body>
    <input type="button" id="getMessage" value="获取信息" />${message }
    <div id="message"></div>
  </body>
  <script type="text/javascript">
   $(document).ready(function (){
    $("#getMessage").click(function(){
     $.getJSON("list.action",function(data){
      $("#message").html(data.message);
     });
    });
   });
 
  </script>
</html>
web.xml文件不用配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0"
 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_3_0.xsd">
  <display-name></display-name> 
  <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>*.action</url-pattern>
  </filter-mapping></web-app>

 

struts.xml

<?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>
</struts>   

 

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