nginx ws长连接配置

http根节点下配上

 		map $http_upgrade $connection_upgrade {
				        default upgrade;
				        ''      close;
				    }

如下：

server服务节点下，后端接口的代理配置

 			proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;