javascript - Django Ajax 通信，Django 不识别为 Ajax(使用 request.is_ajax() )

Question

我正在将 Ajax 与 Django 结合使用。数据被进一步传输，但不被识别为 Ajax。浏览器 Chrome/Firefox；

为了检查请求是否通过ajax完成，我使用:

`request.is_ajax()` method, but this fails, not true, so I checked this method how is working and:

def is_ajax(self):
    return self.META.get('HTTP_X_REQUESTED_WITH') == 'XMLHttpRequest'

我验证了 META.get('HTTP_X_REQUESTED_WITH') 并得到 None;

我认为是 ContentType 的问题，或者我需要设置另一个 header 。但如何？我的 JavaScript 是这样设置的:

xhr.open('post', event.target.action, true);
        xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
xhr.setRequestHeader("HTTP_X_REQUESTED_WITH", "XMLHttpRequest");
        xhr.send(data));

进一步检查似乎 request.Meta 也不包含 Content-type。

Answer 1

来自官方documentation :

With the exception of CONTENT_LENGTH and CONTENT_TYPE, as given above, any HTTP headers in the request are converted to META keys by converting all characters to uppercase, replacing any hyphens with underscores and adding an HTTP_ prefix to the name. So, for example, a header called X-Bender would be mapped to the META key HTTP_X_BENDER.

所以 header 的名称应该是X-Requested-With:

xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");