有可能只有一个ip出口，但却有多个项目，那么就需要基于端口号架设虚拟主机。
Step 1：
检查是否开启 httpd-vhosts.conf
apache/conf/httpd.conf文件
# Virtual hosts
Include conf/extra/httpd-vhosts.conf
如果没有开启，必须在httpd.conf文件中设置；如果开启，则可以在apache/conf/extra/httpd-vhosts.conf文件中设置，当然也还是可以再httpd.conf文件中进行设置，同样有效。
Step 2：
httpd.conf文件 DocumentRoot一定要是要配置成虚拟主机的项目的父级目录，此处的DocumentRoot限制的级别最高，虚拟主机中设置的DocumentRoot目录级别只能等于或低于此处的DocumentRoot目录。
# symbolic links and aliases may be used to point to other locations. # DocumentRoot "D:\htdocs" <Directory "D:\htdocs">
Step 3：
httpd.conf文件中添加多端口监听。
# # Listen: Allows you to bind Apache to specific IP addresses and/or # ports, instead of the default. See also the <VirtualHost> # directive. # # Change this to Listen on specific IP addresses as shown below to # prevent Apache from glomming onto all bound IP addresses. # #Listen 12.34.56.78:80 Listen 80 Listen 81 Listen 82
Step 4：
按照Step1中的规则，添加虚拟主机配置。
<VirtualHost *:80> DocumentRoot "D:\htdocs\project1\www" ServerName 127.0.0.1:80 <Directory "D:\htdocs\project1\www"> Options Indexes FollowSymLinks Multiviews AllowOverride All Order Allow,Deny Allow from all </Directory> </VirtualHost>
<VirtualHost *:81> DocumentRoot "D:\htdocs\project2" ServerName 127.0.0.1:81 <Directory "D:\htdocs\project2"> Options Indexes FollowSymLinks Multiviews AllowOverride All Order Allow,Deny Allow from all </Directory> </VirtualHost>
Note：
在虚拟主机配置中一定要覆盖80端口的配置，不然则使用httpd.conf中配置的DocumentRoot的目录，那么项目的上级目录则暴露了。
Apache配置基于端口号的虚拟主机 Apache virtual host configuration is based on the port,布布扣,bubuko.com
Apache配置基于端口号的虚拟主机 Apache virtual host configuration is based on the port
原文：http://www.cnblogs.com/hlt1988321/p/3857596.html