http://www.cnblogs.com/lxwphp/p/8288003.html
<VirtualHost www.domain.com:443>
DocumentRoot
"/var/www/html"
ServerName www.domain.com
SSLEngine on
SSLCertificateFile /usr/local/apache/conf/2_www.domain.com_cert.crt
SSLCertificateKeyFile /usr/local/apache/conf/3_www.domain.com.key
SSLCertificateChainFile /usr/local/apache/conf/1_root_bundle.crt
</VirtualHost>