JSONP请求

 

    使用jsonp不能发起POST请求。

It is not possible to make a JSONP POST request.
JSONP works by creating a <script> tag that executes Javascript from a different domain; it is not possible to send a POST request using a <script> tag.

 

    参考文章：http://stackoverflow.com/questions/3860111/how-to-make-a-jsonp-post-request-that-specifies-contenttype-with-jquery