nginx映射整个端口

server {
  listen  7777;
  location / {
    proxy_pass  http://yjx-show.com:30430;
    add_header Access-Control-Allow-Methods *;                   
    add_header Access-Control-Max-Age 3600;                      
    add_header Access-Control-Allow-Credentials true;            
    add_header Access-Control-Allow-Origin *;                    
    add_header Access-Control-Allow-Headers                      
    $http_access_control_request_headers;  
  }
  gzip on;
}