status code 412

Http response status code and response status code From: http://hi.baidu.com/starsecond/blog/item/de75458a3cb1b51ac9fc7a6a.html ========================================================== ========================================== 100

In the actual application of the site construction, prone to a lot of small mistakes, like MySQL was optimized not in place, the impact of the overall site browsing effect, in fact, the site's regular HTTP status code performance is the same, Google

HTTP status Code editing The HTTP status code is a 3-bit numeric code that represents the HTTP response status of the Web server. It is defined by the RFC 2616 specification and is extended by RFC 2518, RFC 2817, RFC 2295, RFC 2774,

Part of hypertext Transfer Protocol--http/1.1RFC 2616 Fielding, et al.10 Status Code rule (status code definitions)This article describes the relevant rules for each status code, including the method to be followed by the corresponding status code

The complete HTTP 1.1 specification is from RFC 2616. You can view it at http://www.rfc-editor.org/on-line. The HTTP 1.1 Status Code is marked as a new feature because many browsers only Support HTTP 1.0. You should only send the status code to

The complete HTTP 1.1 specification comes from RFC 2616, you can in http://www.talentdigger.cn/home/link.php? Url = d3d3LnJmYy1lZGl0b3Iub3JnLw % 3D % 3D online query. The HTTP 1.1 Status Code is marked as a new feature because many browsers only

As is known to all, each HTTP response is provided with an HTTP status code, which is the code used to represent the HTTP server response status. It is defined by the RFC 2616 specification and is extended by RFC 2518, RFC 2817, RFC 2295, RFC 2774,

As shown earlier, the HTTP status code is divided into five categories. This section summarizes each of these five types of HTTP status codes.100~199--Informational Status CodeThe http/1.1 introduces an informational status code to the Protocol.

Some common HTTP status codes are:200– server successfully returned to Web page404– The requested page does not exist503– Service Not availableCommon HTTP status Code Daquan1XX (Temporary response)A status code that represents a temporary response

HTTP Status CodeCommon Status Codes:Http:status 200– Server successfully returned to Web pageHttp:status 404– The requested page does not existHttp:status 503– Service Not availableDetailedDescriptionHttp:status 1xx (Temporary response)--A status