获取ajax返回值的问题
发布时间:2020-12-16 02:05:34 所属栏目:百科 来源:网络整理
导读:一、前端代码 htmlheadtitlebian/titlemeta charset="utf-8" /script src="http://cdn.bootcss.com/jquery/1.11.2/jquery.min.js"/scriptscript type="text/javascript"function check(){var aData=testAsync();//aData={"login":"1","message":"sucessful"}
一、前端代码 <html> <head> <title>bian</title> <meta charset="utf-8" /> <script src="http://cdn.bootcss.com/jquery/1.11.2/jquery.min.js"></script> <script type="text/javascript"> function check(){ var aData=testAsync();//aData={"login":"1","message":"sucessful"} if(aData.login==1){ $('#message').css({display:'block'}); $('.error').html('用户名存在'); } } function testAsync() { //定义一个全局变量来接受$post的返回值 var result; //用ajax的“同步方式”调用一般处理程序 $.ajax({ url: "<{$URL1}>/example/perfdata/format/json",//url: "/project/CI/index.php/example/perfdata/format/json",async: false,//改为同步方式 type: "post",success: function (DataValue) { result = DataValue; } }); return result; } </script> </head> <body> <h1>ajax异步调用演示</h1> <button type="button" onclick="check()">异步调用</button> <div id="message" style="display:none"> <p class="error"></p> </body> </html> 二、后端代码 1、restful接口 <?php defined('BASEPATH') OR exit('No direct script access allowed'); // This can be removed if you use __autoload() in config.php OR use Modular Extensions require APPPATH.'/libraries/REST_Controller.php'; class Example extends REST_Controller { public function perfdata_post(){ $arr = array('login'=>'1','message'=>'sucessful'); $this->response($arr,200); } } (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |