jquery ajax请求只适用于firefox。

I have the following html, alert works only in mozilla firefox when I click the button.Why?

我有下面的html，只有当我点击按钮时，alert才会在mozilla firefox中工作。

<html>
       <head>
        <script type="text/javascript" src="jquery.js"></script>
        <script type="text/javascript">
        $(document).ready(function(){
        $("button").click(function(){
          $.ajax({url:"https://graph.facebook.com/1524623057/", 
          success:function(){
           alert(1);
          }});
        });});
        </script>
        </head>
        <body>

        <button>send request</button>
        </body>
        </html>

2 个解决方案

#1

The result from facebook isn't proper json, as it has line breaks and tabs - also, it's served as text/javascript.

facebook的结果不是合适的json，因为它有换行符和制表符——同样，它被用作文本/javascript。

Facebook supports jsonp, however, so you could do this instead:

然而，Facebook支持jsonp，所以你可以这样做:

$.ajax({
  url: 'https://graph.facebook.com/1524623057/',
  type: 'get',
  dataType: 'jsonp'
}).done( function( data ){
  // the data!
});

This will basically tack on the ?callback=jQuery23423234234 or whatever random id is generated to facebook, returning a function that can be called.

这将基本上附加在?callback= jquery234234234或任何生成到facebook的随机id上，返回可调用的函数。

If you want to parse it yourself, do:

如果您想自己解析它，请这样做:

Tell $.ajax to use type 'text', e.g.

告诉美元。使用“text”类型的ajax。

$.ajax({
  url: 'https://graph.facebook.com/1524623057/',
  dataType: 'text'
})

and then clean it up. Here's an answer on SO about cleaning up that kind of js, so you can use $.parseJSON instead of having to throw it in a new function or eval'ing it. Converting multiline, indented json to single line using javascript

然后把它清理干净。这里有一个关于清除这类js的答案，所以您可以使用$。使用parseJSON而不是将其放入一个新函数或对其进行eval。使用javascript将多行、缩进的json转换为单行

That way, you can var data = $.parseJSON( cleanedUpJsonFromFacebook ) and access the object properties.

这样，就可以将var数据= $。parseJSON(cleanedUpJsonFromFacebook)并访问对象属性。

#2

It looks like that request returns a JSON data type. The code is complaining about a colon when it receives the result and doesn't recognize the JSON.

看起来该请求返回一个JSON数据类型。当代码接收到结果而不识别JSON时，它会抱怨冒号。

Try this:

试试这个:

$.ajax("https://graph.facebook.com/1524623057/",
    { 
        success:function(){
            alert(1);
        },
        dataType: 'json'
    }
);

Also, the success callback takes a response parameter that you can use to inspect the JSON when you get it back.

此外，success回调使用一个响应参数，您可以在取回JSON时使用该参数检查JSON。

Check out http://api.jquery.com/jQuery.ajax/

看看http://api.jquery.com/jQuery.ajax/

#1