nginx.conf配置

	server {
	    listen 8090; 
	    server_name   localhost;
	    
	    add_header Access-Control-Allow-Origin *;
	    add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS';
	    add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization';
	    if ($request_method = 'OPTIONS') {
	        return 204;
	    }

	    location / {
	        #要代理的websocket所在的IP和端口号，注意是http不是ws
	        proxy_pass http://192.168.1.130:8080;
	        proxy_http_version 1.1;
	        proxy_set_header Upgrade $http_upgrade;
	        proxy_set_header Connection "upgrade";
	    }
	}

测试地址 

假如，nginx服务IP地址是192.168.1.129，则请求代理的websocket地址为：ws://192.168.1.129:8090/websocket业务路径