HTTPS is configured in Nginx and cannot be accessed?

problem description

system: Centos 6.x
Nginx cannot be accessed after HTTPS is configured

everything was configured successfully and can be accessed normally, but later I planned to configure HTTPS for Nginx, but I couldn"t access it after following the online tutorials step by step, and the demand solution was fruitless. Pure novice learning, I hope you can give us some advice.

service iptables status -sharp 
nginx -t    -sharp

the configuration file is as follows:

server {
    listen       80 ;
    listen       445 ssl;
    server_name  _ localhost ***.com www.***.com ;

    ssl          on;
    ssl_certificate   /etc/nginx/ssl/***.pem;
    ssl_certificate_key  /etc/nginx/ssl/***.key;
    ssl_session_timeout 5m;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers AESGCM:ALL:!DH:!EXPORT:!RC4:+HIGH:!MEDIUM:!LOW:!aNULL:!eNULL;
    ssl_prefer_server_ciphers on;


    root /usr/share/nginx/html;
    index index.html index.htm;

    if ( $host != "www.***.com" ) {
        rewrite "^/(.*)$" https://www.***.com/$1 permanent;
    }

    location / {
        root /usr/share/nginx/html;
        index index.html;
    }
}