nginx配置wss后websocket服务无法启动

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nginx和websocket服务只能启动一个，总是提示地址冲突，该如何解决，配置如下

#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;
    accept_mutex on; #设置网路连接序列化，防止惊群现象发生，默认为on
    multi_accept on; #设置一个进程是否同时接受多个网络连接，默认为off
    #use epoll;  #事件驱动模型，select|poll|kqueue|epoll|resig|/dev/poll|eventport 
}


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;
    
    upstream runx {
        server 172.31.12.193:8181;
    }
    
    server {
        listen       8181;
        server_name  cdjhzx.top;


        location / {
           proxy_connect_timeout 15s;
           proxy_send_timeout 15s;
           proxy_read_timeout 30m;
           proxy_set_header Host $host;
           proxy_set_header X-Real-IP $remote_addr;
           proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
           proxy_set_header Connection "";
           proxy_set_header Upgrade $http_upgrade;
           proxy_set_header Connection "upgrade";
           proxy_pass http://runx; #请求转向runx 定义的服务器列表
           client_max_body_size 1024m;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

    }

    # HTTPS server
    #
    server {
        listen       8181 ssl;
        server_name  cdjhzx.top;#域名配置

        ssl_certificate      /usr/local/webserver/nginx/conf/server.pem;#证书路径linux中可以放在  /etc/nginx/ssl
        ssl_certificate_key  /usr/local/webserver/nginx/conf/server.key;

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

        ssl_ciphers  HIGH:!aNULL:!MD5;
        ssl_prefer_server_ciphers  on;

        location / {
           proxy_connect_timeout 15s;
           proxy_send_timeout 15s;
           proxy_read_timeout 30m;
           proxy_set_header Host $host;
           proxy_set_header X-Real-IP $remote_addr;
           proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
           proxy_set_header Connection "";
           proxy_set_header Upgrade $http_upgrade;
           proxy_set_header Connection "upgrade";
           proxy_pass http://runx; #请求转向runx 定义的服务器列表
           client_max_body_size 1024m;
        }
        
    }

}

两个服务占用了同一个端口
nginx配置中的

listen       8181;

应该改成

listen       80;

listen       8181 ssl;

应该改成

listen       443 ssl;

这样就不会占用8181端口
另外,

location / {
    ...
    proxy_pass http://runx;
    ...
}

是直接将网站根目录指向了websocket服务, 建议添加一个子路径, 如

location /websocket {
    ...
    proxy_pass http://runx;
    ...
}

, 这样不影响nginx的网页服务

是否通过代理途径访问