1 import QtQuick 2.0 2 import QtQuick.Controls 1.2 3 import "ajax.js" as Ajax 4  5  6 /** 7 测试用ajax 获取 json 数据 8 */ 9 Grid{10     width: 60011     height: 40012     spacing: 1013     columns: 214 15     Text {text: ‘city‘}16     Text {id:city}17 18     Text {text: ‘date‘}19     Text {id:date}20 21     Text {text: ‘temp‘}22     Text {id:temp1}23 24     Component.onCompleted: {25         Ajax.get("http://m.weather.com.cn/atad/101230201.html",26             function(result, json){27                 city.text = json.weatherinfo.city;28                 date.text = json.weatherinfo.date_y;29                 temp1.text = json.weatherinfo.temp1;30             }31         );32     }33 }

 1 // GET 2 function get(url, success, failure) 3 { 4     var xhr = new XMLHttpRequest; 5     xhr.open("GET", url); 6     xhr.onreadystatechange = function() { 7         handleResponse(xhr, success, failure); 8     } 9     xhr.send();10 }11 12 // POST13 function post(url, arg, success, failure)14 {15     var xhr = new XMLHttpRequest;16     xhr.open("POST", url);17     xhr.setRequestHeader("Content-Length", arg.length);18     xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;");  //用POST的时候一定要有这句19     xhr.onreadystatechange = function() {20         handleResponse(xhr, success, failure);21     }22     xhr.send(arg);23 }24 25 26 27 // 处理返回值28 function handleResponse(xhr, success, failure){29     if (xhr.readyState == XMLHttpRequest.DONE) {30         if (xhr.status ==  200){31             if (success != null && success != undefined)32             {33                 var result = xhr.responseText;34                 try{35                     success(result, JSON.parse(result));36                 }catch(e){37                     success(result, {});38                 }39             }40         }41         else{42             if (failure != null && failure != undefined)43                 failure(xhr.responseText, xhr.status);44         }45     }46 }