nginx如何配置才可以让同一域名不同端口的前后端进行交互。

   server {

   listen 80;

   

   server_name  localhost;



    #charset koi8-r;



    #access_log  logs/host.access.log  main;



    location / {

        root   html;

        index  index.html index.htm;  

    }



    #error_page  404              /404.html;



    # redirect server error pages to the static page /50x.html

    #

    error_page   500 502 503 504  /50x.html;

    location = /50x.html {

        root   html;

    }



    # proxy the PHP scripts to Apache listening on 127.0.0.1:80

    #

    location ~ \.json$ {

        proxy_pass http://localhost:8080;

    }



    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000

    #

    #location ~ \.php$ {

    #    root           html;

    #    fastcgi_pass   127.0.0.1:9000;

    #    fastcgi_index  index.php;

    #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;

    #    include        fastcgi_params;

    #}



    # deny access to .htaccess files, if Apache's document root

    # concurs with nginx's one

    #

    #location ~ /\.ht {

    #    deny  all;

    #}

}



请求大神详细解答，比较急!!