区分之间的AJAX调用/浏览器请求 [英] Differentiating Between an AJAX Call / Browser Request

问题描述

是否有一个HTTP请求，让我到一个AJAX调用，并从给定的客户端直接浏览器请求区分的头什么？是用户代理字符串通常是相同​​的，不管？

Is there anything in the header of an HTTP request that would allow me to differentiate between an AJAX call and a direct browser request from a given client? Are the user agent strings usually the same regardless?

推荐答案

如果您使用的原型，jQuery的，Mootools的或YUI你应该找一个 X-要求，通过：XMLHtt prequest 头它会做的伎俩为您服务。它应该是可以插入任何的头部，你想用其他库。

If you use Prototype, jQuery, Mootools or YUI you should find a X-Requested-With:XMLHttpRequest header which will do the trick for you. It should be possible to insert whatever header you like with other libraries.

目前的最低水平，给予 XMLHtt prequest 或XMLHTTP对象，你可以设置与 setRequestHeader 方法，此头如下：

At the lowest level, given a XMLHttpRequest or XMLHTTP object, you can set this header with the setRequestHeader method as follows:

xmlHttpRequest.setRequestHeader('X-Requested-With', 'XMLHttpRequest');

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