浏览器地址栏中的最大URL长度

1、Max URL length in browser address bar
RFC 2616 （Hypertext Transfer Protocol HTTP/1.1）does not specify the maximum URL length:
http://www.faqs.org/rfcs/rfc2616.html
The HTTP protocol does not place any a priori limit on the length of a URI. Servers MUST be able to handle the URI of any resource they serve, and SHOULD be able to handle URIs of unbounded length if they provide GET-based forms that could generate such URIs.

2、url query string parameters length limit

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