Nginx's use routing --Location

 

First, the  route - the Location of use

9.1.  The Location grammar rules

Grammar rules: LOCATION [= | ~ | ~ * | ^ ~] / URI / {...}

First match =, followed by matching ^ ~, followed by the positive matching file in order, finally to / generic matches. When there is a match success when stopped matching, processing requests by the current rule matches.

symbol	meaning
=	= Exact matching at the beginning of
^~	~ ^ Represents the beginning of the uri string beginning with a conventional, it can be appreciated (prohibiting regular match) to match url path.
~	~ Represents the beginning of a case-sensitive match regular
~*	~ * Represents the beginning of a case-insensitive regular match
! ~ And! ~ *	! ~ And! ~ * Are case-sensitive and case-insensitive match does not match the regular
/	Proxy user used (usually a browser)

 

Matching rule priorities are as follows:

 

 

² = when precise matching hits, stop location action, go directly to the precise matching,

² generally matching (including non-regular) when hit, first collect all the ordinary match, and finally the longest that a comparison

²  If the longest match that a general statement is non-regular, direct matching this entry, stop location

²  If the longest match is not common that a non-regular, continuing to go down a regular location

²  by regular execution order of the code matching, when the first regular location on hit, stop location

 

9.2.  Path matching process

 

 

Suppose http request path

http://192.168.0.132:8088/mvc/index?id=2 ，匹配过程如下：

² 将整个url拆解为域名/端口/path/params

² 先由域名/端口，对应到目标server虚拟主机

² path部分参与location匹配，path = path1匹配部分 + path2剩余部分

² 进入location方法体内部流程。

² 若是静态文件处理，则进入目标目录查找文件：root指令时找path1+path2对应的文件;alias指令时找path2对应的文件

² 若是proxy代理，则形如proxy_pass=ip:port时转发path1+path2路径到tomcat;形如proxy_pass=ip:port/xxx时转发path2路径到tomcat。params始终跟随转发。