<VirtualHost *:81>
ServerName www.aaaa.com
ServerAlias aaaa.com
RewriteEngine On
RewriteRule ^/(.*) http://aaaa.ali.yumingshang.com/$1 [P,L]
SetEnv force-proxy-request-1.0.1
SetEnv proxy-nokeepalive 1
ProxyPreserveHost On
</VirtualHost>