不囉嗦，直接上代碼：
1、在瀏覽器輸入網址：http://api.asilu.com/weather/?callback=getname&city=深圳
你會看到如下結果：他返回的是json數據
/** api.asilu.com **/getname({"city":"深圳","pm25":"28","weather":[{"date":"週一 09月10日","icon1":"day\/duoyun","icon2":"night\/duoyun","weather":"多雲","wind":"無持續風向微風","temp":"31 ~ 25℃"},{"date":"週二","icon1":"day\/duoyun","icon2":"night\/duoyun","weather":"多雲","wind":"無持續風向微風","temp":"31 ~ 27℃"},{"date":"週三","icon1":"day\/leizhenyu","icon2":"night\/leizhenyu","weather":"雷陣雨","wind":"東風4-5級","temp":"31 ~ 26℃"},{"date":"週四","icon1":"day\/zhenyu","icon2":"night\/zhenyu","weather":"陣雨","wind":"東風3-4級","temp":"30 ~ 26℃"}],"date":"2018-09-10","id":"101280601","t":1536508800});
整理之後是這樣的：
/** api.asilu.com **/ getname({ "city": "深圳", "pm25": "28", "weather": [{ "date": "週一 09月10日", "icon1": "day\/duoyun", "icon2": "night\/duoyun", "weather": "多雲", "wind": "無持續風向微風", "temp": "31 ~ 25℃" }, { "date": "週二", "icon1": "day\/duoyun", "icon2": "night\/duoyun", "weather": "多雲", "wind": "無持續風向微風", "temp": "31 ~ 27℃" }, { "date": "週三", "icon1": "day\/leizhenyu", "icon2": "night\/leizhenyu", "weather": "雷陣雨", "wind": "東風4-5級", "temp": "31 ~ 26℃" }, { "date": "週四", "icon1": "day\/zhenyu", "icon2": "night\/zhenyu", "weather": "陣雨", "wind": "東風3-4級", "temp": "30 ~ 26℃" }], "date": "2018-09-10", "id": "101280601", "t": 1536508800 });
2、怎樣才能獲取上述json的數據呢？很簡單：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>ajax</title>
</head>
<body>
<h1>天氣查詢</h1>
<input type="text" placeholder="請輸出你的地址" id="tel"/>
<button id="ajax">確定</button>
<p><span id="reslut"></span></p>
<script type="text/javascript" src="jquery-3.3.1/jquery-3.3.1.js"></script>
<script type="text/javascript">
$(function(){
$('#ajax').on('click',function(){
var $telValue=$('#tel').val();
if($telValue=="") {
alert('不能爲空！');
return;
}
$.ajax({
type: 'GET',
dataType:'jsonp',
url: 'http://api.asilu.com/weather/?callback=getname&city='+$telValue,
success: function(data){
var reslutData=data;
console.log(reslutData);
$('#reslut').text("你查詢的是:"+reslutData.city+","+"明天的天氣是:"+reslutData.weather[0].weather);
}
})
})
})
</script>
</body>
</html>
3、效果圖是這樣的：
4、完畢。