第一步：配置Apache 的 httpd.conf
#Listen 0.0.0.0:80
Listen 80
Listen 81
第二步：开启虚拟站点
所属文件：httpd.conf
#Virtual hosts
#Include conf/extra/httpd-vhosts.conf
修改为
# Virtual hosts
Include conf/extra/httpd-vhosts.conf
第三步：配置conf/extra/httpd-vhosts.conf
<VirtualHost *:81>
ServerAdmin webmaster@dummy-host.localhost
DocumentRoot "/data/wwwroot"
ServerName 81
ErrorLog "logs/dummy-host.localhost-error.log"
CustomLog "logs/dummy-host.localhost-access.log" common
<Directory "/data/wwwroot">
Options FollowSymLinks
AllowOverride None
Require all granted
</Directory>
</VirtualHost>
如果访问站点出现you don‘t have permission to access / on this server(Apache Server权限访问问题)
修改httpd.conf:
<Directory />
AllowOverride none
Require all denied
</Directory>
<Directory />
AllowOverride none
# Require all denied
</Directory>
Apache Wamp WampServer 配置多端口 多站点 虚拟目录
原文：http://www.cnblogs.com/Mwsoft/p/4330512.html