关注todo-step1和todo-step2就行了：

user root;
……
http {### Basic Settings##sendfile on;tcp_nopush on;types_hash_max_size 2048;client_max_body_size 10240m;include /etc/nginx/mime.types;default_type application/octet-stream;# 配置websocket访问 *****************todo-step:1*****************map $http_upgrade $connection_upgrade { default          keep-alive;  #默认为keep-alive 可以支持 一般http请求'websocket'      upgrade;     #如果为websocket 则为 upgrade 可升级的。}# 配置80访问gatewayupstream gateway{server com.xxx.com:30000;}server {listen 80; # 监听端口server_name com.xxx.com; #配置域名或IP地址location / {proxy_pass  http://gateway/; # 将请求转发到backend_server服务器的地址proxy_set_header Host $host;proxy_set_header X-Real-IP $remote_addr;proxy_http_version 1.1;proxy_set_header Upgrade $http_upgrade; #此处配置 上面定义的 *****************todo-step:2*****************proxy_set_header Connection $connection_upgrade;}location /xx/ {alias /xx/temp/; # 将请求转发到服务器的地址add_header Front-End-Https on;add_header 'Access-Control-Allow-Headers' '*';add_header 'Access-Control-Allow-Methods' '*';add_header 'Access-Control-Allow-Origin' $http_origin;add_header 'Access-Control-Allow-Credentials' 'true';}}}