Nginx implements version control

Try to follow the method here https://blog.csdn.net/liuxiao723846/article/details/54925328 to perform a non-aware version upgrade, as follows:

location / {
        root    html;
        index   index.html index.htm index.php;
        proxy_redirect      off;
        proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header    X-Real-IP $remote_addr;
        proxy_set_header    Host $http_host;
        proxy_http_version  1.1;
        proxy_set_header    Connection "";
 
        if ( $query_string ~* "usg=0" ) {
            proxy_pass      http://local_workera;
        }
 
        if ( $query_string ~* "usg=1" ) {
            proxy_pass      http://local_workerb;
        }
 
        if ( $arg_uid ~* "(.*[AB]$)" ) {
			proxy_pass      http://local_workerf;
        }
 
        proxy_pass    http://local_workera;
}

My real configuration is as follows:

    location /test/ {
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        #proxy_set_header Host $http_host;
        proxy_set_header X-NginX-Proxy true;
        proxy_redirect off;
        if ( $query_string ~* "revision=2268" ) {
            rewrite ^/sh/(.*)$ /$1 break;
            proxy_pass http://127.0.0.1:7001/;
            break;
        }
        proxy_pass http://127.0.0.1:7001/;

But it reported an error

"proxy_pass" cannot have URI part in location given by regular expression, or inside named location, or inside "if" statement, or inside "limit_except" block in

I removed it according to this article https://blog.csdn.net/fjh1997/article/details/98751574 /, but it cannot be used. It may be a path problem. The server keeps reporting 401 User is not logged in.

    location /test/ {
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        #proxy_set_header Host $http_host;
        proxy_set_header X-NginX-Proxy true;
        proxy_redirect off;
        if ( $query_string ~* "revision=2268" ) {
            rewrite ^/sh/(.*)$ /$1 break;
            proxy_pass http://127.0.0.1:7001;
            break;
        }
        proxy_pass http://127.0.0.1:7001/;

Solved it by reading this article https://www.cnblogs.com/woshimrf/p/nginx-proxy-rewrite-url.html, and finally added rewrite

    location /test/ {
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        #proxy_set_header Host $http_host;
        proxy_set_header X-NginX-Proxy true;
        proxy_redirect off;
        if ( $query_string ~* "revision=2268" ) {
            rewrite ^/sh/(.*)$ /$1 break;
            proxy_pass http://127.0.0.1:7001;
            break;
        }
        proxy_pass http://127.0.0.1:7001/;