#doctor

    upstream doc {

        server 52.**.**.***:8090;

    }  

    #patient

    upstream pat {

    server 52.**.**.***:8088;

    }    

    server {

        listen       80;

        server_name  www.baidu.com; #自己的域名   

    #patient

       location /pat/ {

            proxy_set_header host $host;

       　　  proxy_set_header X-forwarded-for $proxy_add_x_forwarded_for;

        　　 proxy_set_header X-real-ip $remote_addr;

        　　 proxy_pass http://pat;

        }

    #doctor

    location /doc/ {

            proxy_set_header host $host;

            proxy_set_header X-forwarded-for $proxy_add_x_forwarded_for;

            proxy_set_header X-real-ip $remote_addr;

            proxy_pass http://doc;

        }