拦截Jquery AJAX请求以插入其他变量？ [英] Intercepting a Jquery AJAX request to insert additional variables?

问题描述

有没有办法拦截通过jquery发出的ajax请求，在其中插入其他变量？

Is there any way to intercept an ajax request being made via jquery, to insert additional variables into it?

我知道。ajaxStart（）允许您注册一个回调，该回调会在ajax请求开始时触发事件，但我正在寻找的是一种方法取消ajax请求，如果它满足某些条件（例如url），在其内容中插入更多变量，然后提交它。

I know that .ajaxStart() lets you register a callback which triggers an event whenever an ajax request begins, but what I'm looking for is a way to cancel that ajax request if it meets certain criteria (e.g url), insert some more variables into its content, and then submit it.

这是针对第3个插件的插件派对软件，其代码无法直接更改。

This is for a plugin for a 3rd party software whose own code can't be changed directly.

编辑：似乎。ajaxSetup（）允许您设置一些与ajaxRequests相关的全局变量。如果我注册了beforeSend函数，该函数是否能够取消请求以满足某些条件的不同？

Seems like .ajaxSetup() lets you set some global variables related to ajaxRequests. If I registered a beforeSend function, would that function be able to cancel the request to make a different one on meeting certain criteria?

推荐答案

想出来，这是我使用的代码：

Figured it out, this was the code I used:

jQuery(document).ready(function()
{    
    var func = function(e, data) 
    {       
        //data.data is a string with &seperated values, e.g a=b&c=d&.. . 
        //Append additional variables to it and they'll be submitted with the request:      
        data.data += "&id=3&d=f&z=y";
        return true;
    };
    jQuery.ajaxSetup( {beforeSend: func} );
    jQuery.post('example.php', {a : 'b'}, 'json');    
} );

要取消请求，请从 func 似乎工作。

To cancel the request, returning false from func seemed to work.

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