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前言

最近接触了有关微信小程序的websocket，小程序后台服务的需要https配置和wss配置，经过一番测试，终于实现了小程序后台服务的部署。这里就总结一下微信小程序，SpringBoot为后台的使用nginx配置来解决https配置和wss配置方案。

方案

阿里免费CA证书，nginx代理请求转发，netty构建websocket服务端并保持心跳

阿里证书就不介绍了，很简单。

nginx代理

小程序有个苛刻的要求https、wss（小程序websocket需要）

wss其实是http的升级协议,所以它们是可以共用一个端口的

这里给出nginx的ngxin.conf的配置案例：

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

	map $http_upgrade $connection_upgrade {

		default upgrade;
		'' close;
	}

	upstream websocket {
        server localhost:9999; #本地websocket反向代理地址
    }
	upstream web {

		server localhost:8090; #本地web反向代理地址
	}
    server {
        listen       443;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

		ssl on;
		ssl_certificate      214660810500.pem; #证书，我的证书和nginx.conf在同一目录
		ssl_certificate_key  214660810500.key; #证书

		ssl_session_cache    shared:SSL:1m;
		ssl_session_timeout  5m;

		ssl_ciphers  HIGH:!aNULL:!MD5;
		ssl_prefer_server_ciphers  on;
		location / {
			proxy_pass http://web;
			proxy_set_header X-real-ip $remote_addr;
			proxy_set_header Host $http_host;
        }
		#小程序websocket访问：wss://localhost/websocket
		location /websocket {
			proxy_pass http://websocket;
			proxy_http_version 1.1;
			proxy_set_header Upgrade $http_upgrade;
			proxy_set_header Connection "Upgrade";

		}
        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

    
    }

}

web服务：tomcat 8090

websocket服务： netty 9999

注意:nginx 1.3以上版本才开始支持websocket的反向代理