nginx之rewrite

参考：https://www.cnblogs.com/woshimrf/p/nginx-proxy-rewrite-url.html

https://blog.csdn.net/mengzuchao/article/details/80412790?utm_source=blogxgwz8

 

前端访问：http://10.0.103.126:8000/api/imageserve/getobj/p0084160734645493775jrsh-jjg-b204.png

nginx配置，以api/imageserve开头的请求，将api去掉，然后api后的所有参数中转到proxy_pass

location ^~/api/imageserve/ {
           rewrite ^/api/(.*)$ /$1 break;
            proxy_pass http://127.0.0.1:5010/;
                
                                   proxy_http_version 1.1;
                    
                                  proxy_set_header Upgrade $http_upgrade;
                    
                                  proxy_set_header Connection "";
                    
                                 proxy_set_header Host $host:80;
                    
                                proxy_set_header X-NginX-Proxy true;
                    
                               proxy_set_header X-Real-IP $remote_addr;
                    
                              proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                    
                                 proxy_cache_bypass $http_upgrade;
        }

---------抄自 https://www.cnblogs.com/woshimrf/p/nginx-proxy-rewrite-url.html

 

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;
    }

}

 

 

但很多时候，我们需要根据url的前缀转发到不同的服务。

比如

abc.com/user/profile.html转发到 用户服务localhost:8089/profile.html

abc.com/order/details.html转发到 订单服务 localhost:8090/details.html

即，url的前缀对下游的服务是不需要的，除非下游服务添加context-path, 但很多时候我们并不喜欢加这个。如果Nginx转发的时候，把这个前缀去掉就好了。

一个种方案是proxy_pass后面加根路径/.

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;

        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.

 

另一种方案是使用rewrite

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;
    }

}

注意到proxy_pass结尾没有/， rewrite重写了url。

 

关于rewrite

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