nginx配置了跨域和去前缀都没效果

Question

  server {
        listen       8080;
        server_name  www.yunshuolea.cn;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location ~^/user/ {
            add_header 'Access-Control-Allow-Origin' $http_origin;
            add_header 'Access-Control-Allow-Credentials' 'true';
            add_header 'Access-Control-Allow-Methods' 'GET, POST, DELETE, PUT, OPTIONS';
            add_header 'Access-Control-Allow-Headers' 'DNT,web-token,app-token,Authorization,Accept,Origin,Keep-Alive,User-Agent,X-Mx-ReqToken,X-Data-Type,X-Auth-Token,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
            add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';
                if ($request_method = 'OPTIONS') {
                add_header 'Access-Control-Max-Age' 1728000;
                add_header 'Content-Type' 'text/plain; charset=utf-8';
                add_header 'Content-Length' 0;
                return 204;
            }
            root   html;
            index  index.html index.htm;
            proxy_pass http://43.140.192.0:8081;
            rewrite ^/user/(.*)$ /$1 break;
            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-Forwarded-Proto $scheme;
            proxy_connect_timeout 5;
        }

发请求还是报错

前缀也没去

麻烦小伙伴们解决

Answer 1

跨域问题可能是由于客户端发送的跨域求没有在服务端正确处理所导致的。可以在反向代理的location块中使用以下内容来解决跨域问题：

add_header 'Access-Control-Allow-Origin' $http_origin;
add_header 'Access-Control-Allow-Credentials' 'true';
add_header 'Access-Control-Allow-Methods' 'GET, POST, DELETE, PUT, OPTIONS';
add_header 'Access-Control-Allow-Headers' 'DNT,web-token,app-token,Authorization,Accept,Origin,Keep-Alive,User-Agent,X-Mx-ReqToken,X-Data-Type,X-Auth-Token,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';

如果希望在反向代理时去掉URL中的"/user"前缀，就可以使用以下内容：

rewrite ^/user/(.*)$ /$1 break;

这样当发送求"http://www.yunshuolea.cn:8080/user/some/path"时，NGINX会将求转发到"http://43.140.192.0:8081/some/path"。

这些内容应该放在location块的末尾，以便在执行反向代理之前先解决跨域和URL前缀问题。
望采纳。