struts2 回来json数据,jquery解析
日期：2014-05-16 浏览次数：20382 次
struts2 返回json数据,jquery解析
表结构：
CREATE TABLE IF NOT EXISTS `random` (
???? `id` int( 11 ) NOT NULL AUTO_INCREMENT ,
???? `name` varchar( 50 ) NOT NULL ,
???? PRIMARY KEY ( `id` )
?? ) ENGINE = MYISAM DEFAULT CHARSET = utf8 AUTO_INCREMENT =1
Struts2.xml文件
<package name="json" extends="json-default" namespace="/random"> <global-results> <result name="exception">/error.jsp</result> </global-results> <global-exception-mappings> <exception-mapping exception="java.lang.Exception" result="exception" /> </global-exception-mappings> <action name="json" method="jsonTest" class="randomAction"> <result type="json"> <param name="root">result</param> </result> </action> </package>
?ACTION
public String jsonTest(){
HttpServletRequest request = ServletActionContext.getRequest();
HttpServletResponse response = ServletActionContext.getResponse();
// HttpSession session = request.getSession();
String id = request.getParameter("flag");
List<RandomObj> objList = randomService.getRandomObj(Integer.parseInt(id));
JSONArray array = JSONArray.fromObject(objList);
this.result = array.toString();
System.out.println(result);
return Action.SUCCESS;
}
private String result;
public String getResult() {
return result;
}
public void setResult(String result) {
this.result = result;
}
?JS
$(document).ready(function(){
var id = $("#flagId").val();
if(id == 50)
window.setTimeout(function(){selectData3()},0);
function selectData3(){
var id = $("#flagId").val();
$.ajax({
type: "POST",
url: "random/json.action",
dataType : "json",
data: "flag="+id,
success: function(result){
var json = eval( "("+result+")" );
var temp_html="";
$.each(json,function(i,n){
//alert(json[i].id+json[i].name);
if(i == 0){
$("#flagId").val(json[i].id);
}
temp_html += "<li>"+json[i].id+"========"+json[i].name+"</li>";
});
$("#aaa").after(temp_html);
}
});
}
window.setInterval(function(){selectData3()},60000);
})
?JSP
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<SCRIPT language=javascript src="js/jquery-1.2.6.js"></SCRIPT>
<SCRIPT language=javascript src="js/myjson.js"></SCRIPT>
</head>
<body>
<a href="random/cache.action">cache</a>
<a href="json.jsp">json</a>
<a href="index.jsp">index.jsp</a>
<input type="hidden" id="flagId" name="flagId" value="50">
<div id="aaa" align="center" ></div>
</body>
</html>
?
?
1 楼
yjmyd1119
2012-01-13
不错，不错。
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