jquery ajax struts2 json

最新推荐文章于 2021-08-06 08:43:59 发布

原创最新推荐文章于 2021-08-06 08:43:59 发布 · 397 阅读

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#jquery ajax struts2

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1.首先定义自己的action 用于返回想要的json

package com.action;

import java.util.ArrayList;
import java.util.List;

import com.model.User;
import com.opensymphony.xwork2.ActionSupport;
import com.util.JsonMetaData;

@SuppressWarnings("serial")
public class MyAction extends ActionSupport {
private User user;
private String result;

public String getResult() {
return result;
}
public void setResult(String result) {
this.result = result;
}
public MyAction(){
System.out.println("MyAction()");
}
@Override
public String execute() throws Exception {
// TODO Auto-generated method stub

System.out.println(this.user.getName());
System.out.println(this.user.getPassword());

List<User> list = new ArrayList<User>();

User user = new User();
user.setName(this.user.getName());
user.setPassword(this.user.getPassword());
list.add(user);

String jsonStr = JsonMetaData.getJsonResult(list);
System.out.println(jsonStr);
this.result = jsonStr;
return "success";
}
public User getUser() {
return user;
}

public void setUser(User user) {
this.user = user;
}
}

2.配置struts.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>

<constant name="struts.enable.DynamicMethodInvocation" value="true" />
<constant name="struts.devMode" value="true" />
<package name="default" namespace="/" extends="json-default">
<action name="myaction" class="com.action.MyAction">
<result name="success" type="json">

//注意：参数name必须是root ：对应的值：result与action中的成员变量“result”对应
<param name="root">result</param>
</result>
</action>
</package>
</struts>

3.index.jsp文件

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

<script src="js/jquery-1.7.1.js" type="text/javascript">
</script>

<script type="text/javascript">
$(document).ready(function(){
$("#sub").click(function(){

var params = $("#reg").serialize();
$.getJSON("myaction",params,function(text){
var rs = $.parseJSON(text);
$.each(rs.data,function(key,val){

$("#vie").append(

"<tr class=gg><td>"+val.name+"</td><td>"+
val.password+"</td></tr>"

);
});

});
});

});

</script>

</head>

<body>
<a href="<%=basePath%>myaction?user.name=zhangsan&user.password=123">>myAction</a>

<br>
<form action="<%=basePath%>myaction" id="reg" method="post">
用户名:<input type="text" name="user.name" /><br>
密码:<input type="password" name="user.password" /><br>
<input type="button" value="提交" id="sub"/>

<hr>

<table id="vie" class="tt">
</table>
</form>



</body>
</html>