IIS与Apache共用80端口

LoadModule proxy_module modules/mod_proxy.so 
LoadModule proxy_connect_module modules/mod_proxy_connect.so 
LoadModule proxy_http_module modules/mod_proxy_http.so 
LoadModule proxy_ftp_module modules/mod_proxy_ftp.so

Include conf/extra/httpd-vhost.conf

NameVirtualHost *:80
<VIRTUALHOST *:80>
    ServerName    www.b.com
    DocumentRoot "D:/web/php站点目录"
</VIRTUALHOST >
<VIRTUALHOST *:80>
    ServerName www.a.com
    ProxyPass / http://www.a.com:81/
    ProxyPassReverse / http://www.a.com:81/
</VIRTUALHOST>