//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>???
?
