实例详解nginx是用什么方式处理请求的

server {
       listen   80;
       server_name  hanmk.com;
       location / {
       root /tmp/data/;
       autoindex on;
      }
   }
    server {
        listen    80 default_server;
        server_name demo.com ;
        location / {   # tomcat首页
        proxy_pass http://localhost:8080;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
       location /jenkins {                #tomcat部署jenkins
              proxy_pass  http://127.0.0.1:8080;
              proxy_set_header        Host $host;
              proxy_set_header        X-Real-IP $remote_addr;  #获取真实ip
              proxy_connect_timeout   90;
              proxy_send_timeout      90;
              proxy_read_timeout      90;
              proxy_buffer_size       4k;
              proxy_buffers           4 32k;
              proxy_busy_buffers_size 64k;
              proxy_temp_file_write_size 64k;
              proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;#获取代理者的真实ip
              proxy_redirect          off;
       }
       location /ApprPhD {                #nodeJs服务器
              proxy_pass http://192.168.XXX.XXX:3030;
              proxy_set_header        Host $host;
              proxy_set_header        X-Real-IP $remote_addr;  #获取真实ip
              proxy_set_header REMOTE-HOST $remote_addr;
              proxy_connect_timeout   90;
              proxy_send_timeout      90;
              proxy_read_timeout      90;
              proxy_buffer_size       4k;
              proxy_buffers           4 32k;
              proxy_busy_buffers_size 64k;
              proxy_temp_file_write_size 64k;
              proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;#获取代理者的真实ip
              proxy_redirect          off;
       }
    }