Nginx location&rewrite
Nginx的Location可以有以下几个匹配： 1. = 严格匹配这个查询。如果找到，停止搜索。2. ^~ 匹配路径的前缀，如果找到，停止搜索。
3. ~ 为区分大小写的正则匹配
4. ~* 为不区分大小写匹配
例子：
location = / {
# matches the query / only.
# 只匹配 / 查询。
[ configuration A ]
}
location / {
# matches any query, since all queries begin with /, but regular
# expressions and any longer conventional blocks will be
# matched first.
# 匹配任何查询，因为所有请求都已 / 开头。但是正则表达式规则和长的块规则将被优先和查询匹配。
[ configuration B ]
}
location ^~ /images/ {
# matches any query beginning with /images/ and halts searching,
# so regular expressions will not be checked.
# 匹配任何已 /images/ 开头的任何查询并且停止搜索。任何正则表达式将不会被测试。
[ configuration C ]
}
location ~* ".(gif|jpg|jpeg)$ {
# matches any request ending in gif, jpg, or jpeg. However, all
# requests to the /images/ directory will be handled by
# Configuration C.
# 匹配任何已 gif、jpg 或 jpeg 结尾的请求。然而所有 /images/ 目录的请求将使用 Configuration C。
[ configuration D ]
}
Rewrite指令
rewrite regex replacement flag
后面的flag可以是:
last - completes processing of rewrite directives, after which searches for corresponding URI and location
break - completes processing of rewrite directives
redirect - returns temporary redirect with code 302; it is used if the substituting line begins with http://
permanent - returns permanent redirect with code 301
需要注意的是，如果rewrite后，不要它再去匹配其它的location，则需要加上break，如：
location ^~ /html/l/
{
root /opt/docparser;
rewrite "^/html/l/(.*)$" /$1;
#注意，需要有break，否则rewrite后还会继续匹配下面的location
break;
}
location ~ /(.*)$ {
proxy_pass http://127.0.0.1:8080;
}
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