目标一

请求江西网络广播电视台电视节目

URL:http://www.jxntv.cn/data/jmd-jxtv2.html

分析

1.从Http头信息分析得知,器服务端未返回响应头Access-Control-Allow-xxxx 相关信息,所以只能使用JSONP方式

2.从返回值内容中分析得知,其返回值永远是:list(响应内容),即:由于服务器将函数名写死为list,所以指定callback在此程序中无效。

list({
data: [
{
"week": "周日",
"list": [
{
"time": "",
"name": "通宵剧场六集连播",
"link": "http://www.jxntv.cn/live/jxtv2.shtml"
},
{
"time": "",
"name": "都市晚剧场",
"link": "http://www.jxntv.cn/live/jxtv2.shtml"
}
]
} ]
});

实现

get_tv_list.html

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>跨域请求最新电视节目清单</title>
</head>
<body> <h1>跨域请求</h1>
<input type="submit" value="XmlSendRequest获取节目" onclick="XmlSendRequest();"/> <input type="submit" value="JqSendRequest-获取节目" onclick="JqSendRequest();"/> <script type="text/javascript" src="http://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
<script>
function XmlSendRequest() {
// 创建script标签
var tag = document.createElement('script');
// 指定src
tag.src = "http://www.jxntv.cn/data/jmd-jxtv2.html";
// 添加到head标签中
document.head.appendChild(tag);
// 删除script标签
document.head.removeChild(tag);
} function JqSendRequest() {
$.ajax({
url: "http://www.jxntv.cn/data/jmd-jxtv2.html",
type: 'GET',
dataType: 'jsonp'
})
}
function list(arg) {
console.log(arg);
} </script>
</body>
</html>

目标二

请求爱奇艺海贼王节目清单

URL:http://cache.video.iqiyi.com/jp/avlist/202861101/1/?callback=call

分析

1.从Http头信息分析得知,器服务端未返回响应头Access-Control-Allow-xxxx 相关信息,所以只能使用JSONP方式

2.从返回值内容中分析得知,当传入callback时,返回callback回调函数名,所以指定callback在此程序中有效。

try{
call({
"bmsg": {
"t": "",
"f": "kafka",
"sp": "402871101,"
},
"code": "A00000",
"data": {
"pp": 75,
"ps": "",
"pt": 783,
"vlist": [
{
"mdown": 0,
"publishTime": 1438650931000,
"vpic": "http://pic9.qiyipic.com/image/20150803/96/f9/v_109343020_m_601.jpg",
"tvQipuId": 385274600,
"purType": 0,
"qiyiProduced": 0,
"shortTitle": "航海王 第1集",
"type": "",
"vurl": "http://www.iqiyi.com/v_19rrok4nt0.html",
"plcdown": {
"": 0,
"": 0
},
"vid": "e59fa071d268247291f7737c72ea37f8",
"timeLength": 1500,
"pd": 1,
"vn": "航海王 第1集",
"payMark": 0,
"exclusive": 1,
"id": 385274600,
"vt": "我是路飞! 将要成为海贼王的男人",
"pds": ""
},
{
"mdown": 0,
"publishTime": 1438678286000,
"vpic": "http://pic8.qiyipic.com/image/20150804/5f/27/v_109343021_m_601_m2.jpg",
"tvQipuId": 385275700,
"purType": 0,
"qiyiProduced": 0,
"shortTitle": "航海王 第2集",
"type": "",
"vurl": "http://www.iqiyi.com/v_19rrok4ms8.html",
"plcdown": {
"": 0,
"": 0
},
"vid": "c183093e2c60e7a34eb6758c3f997a1e",
"timeLength": 1500,
"pd": 2,
"vn": "航海王 第2集",
"payMark": 0,
"exclusive": 1,
"id": 385275700,
"vt": "大剑客现身!海贼猎人罗罗诺亚·卓洛",
"pds": ""
}
],
"bossType": "",
"aQipuId": 202861101,
"qiyiProduced": 0,
"allNum": 783,
"pg": "",
"isBossMixer": 0,
"ic": 783,
"pgt": 11,
"aid": 202861101,
"pm": 0,
"pn": 75,
"cid": 4
},
"timestamp": ""
});
}catch(e){ };

实现

get_tv_list.html

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>跨域请求最新电视节目清单</title>
</head>
<body> <h1>跨域请求最新电视节目清单</h1>
<input type="submit" value="XmlSendRequest-jsonp" onclick="XmlSendRequest();"/> <input type="submit" value="JqSendRequest-jsonp" onclick="JqSendRequest();"/> <script type="text/javascript" src="http://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
<script>
// 客户端定义回调函数
function call(arg) {
console.log('客户端定义回调函数执行:', arg);
} function XmlSendRequest() {
// 创建script标签
var tag = document.createElement('script');
// 指定src
tag.src = "http://cache.video.iqiyi.com/jp/avlist/202861101/1/?callback=call";
// 添加到head标签中
document.head.appendChild(tag);
// 删除script标签
document.head.removeChild(tag);
} function JqSendRequest() {
$.ajax({
url: "http://cache.video.iqiyi.com/jp/avlist/202861101/1/",
type: 'GET', // POST 也会自动转换为GET请求
dataType: 'jsonp',
jsonp: "callback",
jsonpCallback: 'call', // 请求成功返回后,客户端执行call函数
success: function (data, statusText, xmlHttpRequest) {
// 未指定jsonCallback时,则自定执行方法
console.log('success 回调执行:', data);
}
// 如上请求如 http://cache.video.iqiyi.com/jp/avlist/202861101/1/?callback=call
}) }
</script>
</body>
</html>

Ajax-08 跨域获取最新电视节目清单实例-LMLPHP

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05-11 13:14