nginx反向代理配置如何去除前缀

使用Nginx做代理的时候，可以简单的直接把请求原封不动的转发给下一个服务。
比如，访问abc.com/appv2/a/b.html, 要求转发到localhost:8088/appv2/a/b.html
简单配置如下：

upstream one {          server localhost:8088 weight=5;   }    server {          listen 80;          server_name abc.com;          access_log "pipe:rollback /data/log/nginx/access.log interval=1d baknum=7 maxsize=1G" main;              location / {                  proxy_set_header Host $host;                  proxy_set_header X-Real-IP $remote_addr;                  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;                  proxy_set_header X-NginX-Proxy true;                  proxy_pass http://one;          }     }

即，设置 proxy_pass 即可。请求只会替换域名。但很多时候，我们需要根据url的前缀转发到不同的服务。设置proxy_pass请求只会替换域名，如果要根据不同的url后缀来访问不同的服务，则需要通过如下方法.

server {      listen              8000;      server_name         abc.com;      access_log  "pipe:rollback /data/log/nginx/access.log interval=1d baknum=7 maxsize=1G"  main;        location ^~/user/ {          proxy_set_header Host $host;          proxy_set_header  X-Real-IP        $remote_addr;          proxy_set_header  X-Forwarded-For  $proxy_add_x_forwarded_for;          proxy_set_header X-NginX-Proxy true;            proxy_pass http://user/;      }        location ^~/order/ {          proxy_set_header Host $host;          proxy_set_header  X-Real-IP        $remote_addr;          proxy_set_header  X-Forwarded-For  $proxy_add_x_forwarded_for;          proxy_set_header X-NginX-Proxy true;            proxy_pass http://order/;      }  }  

^~/user/表示匹配前缀是user的请求，proxy_pass的结尾有/， 则会把/user/*后面的路径直接拼接到后面，即移除user。

upstream user {    server localhost:8089 weight=5;  }  upstream order {    server localhost:8090 weight=5;  }    server {      listen              80;      server_name  abc.com;      access_log  "pipe:rollback /data/log/nginx/access.log interval=1d baknum=7 maxsize=1G"  main;        location ^~/user/ {          proxy_set_header Host $host;          proxy_set_header  X-Real-IP        $remote_addr;          proxy_set_header  X-Forwarded-For  $proxy_add_x_forwarded_for;          proxy_set_header X-NginX-Proxy true;            rewrite ^/user/(.*)$ /$1 break;          proxy_pass http://user;      }        location ^~/order/ {          proxy_set_header Host $host;          proxy_set_header  X-Real-IP        $remote_addr;          proxy_set_header  X-Forwarded-For  $proxy_add_x_forwarded_for;          proxy_set_header X-NginX-Proxy true;            rewrite ^/order/(.*)$ /$1 break;          proxy_pass http://order;      }  }  

proxy_pass结尾/， rewrite重写了url。

  syntax: rewrite regex replacement [flag]  Default: —  Context: server, location, if