nginx下https配置不带www跳转到www

1、301永久重定向

2、配置default_server ssl

server {
    listen       80;
    server_name domain.cn,www.tanqub.com;
    return 301 https://www.tanqub.com$request_uri;
}
server {
    listen 443;
    server_name domain.cn;
    return 301 https://www.tanqub.com$request_uri;
}
server {
    listen 443 default_server ssl;
    server_name  www.tanqub.com;
    ssl on;
    ……
}