确切的字符串getJSON和callback =？ [英] exact string to getJSON and callback=?

问题描述

我试图让getJSON使用JSONP对象，但是我不知道如何构建URL：

I'm trying to make getJSON to use JSONP object, but I can't figure out how to build the url:

，例如： http://graph.facebook.com/?ids=http://legrandj .eu / article / blouse_ghost_dream

我应该如何添加callback =？参数？

where and how should I add "callback=?" parameter?

谢谢

d。

推荐答案

将& callback =？追加到URL。

$.getJSON('http://graph.facebook.com/?ids=http://legrandj.eu/article/blouse_ghost_dream&callback=?', function(data) {
    // ..
});
// Or (more clean): 
$.getJSON('http://graph.facebook.com/?callback=?',
    {
        ids: 'http://legrandj.eu/article/blouse_ghost_dream'
    },
    function(data) {
        // ...
    }
);

鉴于此代码，jQuery创建并插入< script src = http://graph.facebook.com/?ids=http://legrandj.eu/article/blouse_ghost_dream&callback=jQuery171022388557461090386_1332329918803&_=133232991983\" > 。 URL的解释：

Given this code, jQuery creates and inserts a <script src="http://graph.facebook.com/?ids=http://legrandj.eu/article/blouse_ghost_dream&callback=jQuery171022388557461090386_1332329918803&_=133232991983">. Explanation of the URL:

• 基本URL： http://graph.facebook.com/?ids=http://legrandj.eu/article/blouse_ghost_dream


• 回调处理程序：& callback = jQuery171022388557461090386_1332329918803
  
  jQuery替换？ callback =？中使用唯一的临时标识符。


• 破坏破解： & _ = 133232991983

• Base URL: http://graph.facebook.com/?ids=http://legrandj.eu/article/blouse_ghost_dream
• Callback handler: &callback=jQuery171022388557461090386_1332329918803
  jQuery replaces ? in callback=? with an unique temporary identifier.
• Cache-breaking: &_=133232991983

FB API以以下格式返回响应（ JSONP ）：

The FB API returns a response in the following format (JSONP):

/**/ jQuery171022388557461090386_1332329918803({
   "http://legrandj.eu/article/blouse_ghost_dream": {
      "id": "http://legrandj.eu/article/blouse_ghost_dream",
      "shares": 3
   }
});

由于这是由< script> 标签，函数 jQuery171022388557461090386_1332329918803 被调用，传递解析的JSON作为参数。解析的JSON然后传递给您在 jQuery.getJSON 中定义的函数。

Since this is included by the <script> tag, a function jQuery171022388557461090386_1332329918803 is called, passing the parsed JSON as an argument. The parsed JSON is then passed to the function which you defined in jQuery.getJSON.

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