配置如下：
http { map $http_upgrade $connection_upgrade { default upgrade; '' close; } server { ... location /chat/ { proxy_pass http://backend; proxy_http_version 1.1; #以下配置添加代理头部： proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection $connection_upgrade; } }
实验案例：
配置websockeet做事器，客户端通过代理连接做事器端。环境如下：
websocket做事端：192.168.1.110:8010
nginx ：192.168.1.131:8081
1：利用nodejs实现一个websocket做事端，监听8010端口，等待websocket链接。
安装nodejs与npm，并安装ws模块。（这里通过官网程序包实现）
[root@192_168_1_110 ~]# tar -zxvf node-v6.2.0-linux-x64.tar.gz[root@192_168_1_110 ~]# ln -s /root/node-v6.2.0-linux-x64/bin/node /usr/local/bin/node[root@192_168_1_110 ~]# ln -s /root/node-v6.2.0-linux-x64/bin/node /usr/local/bin/node[root@192_168_1_110 ~]# npm install -g ws[root@192_168_1_110 ~]# npm install -g wscat
编写websocket做事监听程序：
[root@192_168_1_110 ~]# vim server.jsconsole.log(\公众Server started\公众);var Msg = '';var WebSocketServer = require('ws').Server, wss = new WebSocketServer({port: 8010});wss.on('connection', function(ws) {ws.on('message', function(message) {console.log('Received from client: %s', message);ws.send('Server received from client: ' + message);});});
启动websocket做事端：
[root@192_168_1_110 ~]# node server.jsServer started
重新开启一个终端，利用wscat程序测试程序连接：
[root@192_168_1_110 ~]# /root/node-v6.2.0-linux-x64/lib/node_modules/wscat/bin/wscat --connect ws://192.168.1.110:8010connected (press CTRL+C to quit)> This is a websocket test...< Server received from client: This is a websocket test...>
查看做事端：
[root@192_168_1_110 ~]#node server.jsServer startedReceived from client: This is a websocket test... ----从客户端吸收到的信息
至此，websocket环境搭建完成。
2：配置nginx，代理110上的websocket链接。
[root@192_168_1_131 ~]# vim /opt/conf/nginx/nginx.conf......http {......map $http_upgrade $connection_upgrade {default upgrade;'' close;}.......include vhost/.conf; [root@192_168_1_131 ~]# vim /opt/conf/nginx/vhost/nodejs.confupstream nodejs{server 192.168.1.110:8010;}server {listen 8010;access_log /opt/logs/nginx/nodejs.log main;location / {proxy_pass http://nodejs;proxy_http_version 1.1;proxy_set_header Upgrade $http_upgrade;proxy_set_header Connection $connection_upgrade;}}
重新加载nginx配置：
[root@192_168_1_131 ~]# service nginx reload
这样配置过后，在nginx做事器上访问8010端口的要求，将会全部发送到后端192.168.1.110的8081端口上。
3：验证websocket要求代理：（把ws地址指向192.168.1.131:8010）
[root@192_168_1_110 ~]# /root/node-v6.2.0-linux-x64/lib/node_modules/wscat/bin/wscat --connect ws://192.168.1.131:8010connected (press CTRL+C to quit)> This is a websocket test through nginx proxying...< Server received from client: This is a websocket test through nginx proxying...>
查看做事端：
[root@192_168_1_110 ~]#node server.jsServer startedReceived from client: This is a websocket test...Received from client: This is a websocket test through nginx proxying...
可以看到通过代理，websocket也能正常吸收到客户真个要求信息。
本文转载地址：http://blog.51cto.com/icenycmh/1839566
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