仅将一个子域重定向到 https

Question

我有 2 个子域：

• dev.example.com
• www.example.com

我想将 www 重定向到https://example.com ，但我无法弄清楚。 这是我的conf：

<VirtualHost *:80>
        ServerName example.com
        ServerAlias www.example.com
        Redirect "/" "https://example.com/"
</VirtualHost>

<VirtualHost *:80>
        ServerAlias dev.example.com
        ServerName dev.example.com
        DocumentRoot /var/www/dev.example.com/public_html/
</VirtualHost>

<VirtualHost *:443>
        ServerAlias example.com
        ServerName example.com
        DocumentRoot /var/www/example.com/public_html/

        SSLEngine on
        SSLCertificateFile /var/www/example.com/ssl/dc253831c9e23e90.crt
        SSLCertificateKeyFile /var/www/example.com/ssl/generated-private-key.txt
        SSLCertificateChainFile /var/www/example.com/ssl/gd_bundle-g2-g1.crt

        <Directory "/var/www/example.com/public_html/">
                # use mod_rewrite for pretty URL support
                RewriteEngine on

                # RewriteCond %{HTTPS} off
                # RewriteRule (.*) https://%{SERVER_NAME}/$1 [L,R=301]

                # If a directory or a file exists, use the request directly
                RewriteCond %{REQUEST_FILENAME} !-f
                RewriteCond %{REQUEST_FILENAME} !-d
                # Otherwise forward the request to index.php
                # RewriteRule . index.php
                RewriteRule . index.html

                # ...other settings...
        </Directory>
</VirtualHost>

问题是当我写 example.com （没有 https）时，它会正确重定向，但如果使用 www 则不会。 请问你能帮帮我吗？