文档：nginx代理

upstream webman {
    server 127.0.0.1:8787;
    keepalive 10240;
}

server {
  server_name 站点域名;
  listen 80;
  access_log off;
  root /your/webman/public;

  location ^~ / {
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header Host $host; 【这个地方应该用 $http_host，不然当你nginx里设置了其他端口的时候是获取不到的
      proxy_set_header X-Forwarded-Proto $scheme;
      proxy_http_version 1.1;
      proxy_set_header Connection "";
      if (!-f $request_filename){
          proxy_pass http://webman;
      }
  }
}