前言：以域名www.my.com举例
1、 host绑定（非必须）
win: Windows\System32\drivers\etc
类nuix: /etc/hosts
添加记录 主机IP www.my.com
2. 修改apache的主配置文件
一般默认安装：/usr/local/apache/etc/httpd.conf
去掉前面的# 加载虚拟主机配置文件
#Include etc//extra/httpd-vhosts.conf
3. 修改httpd-vhosts.conf文件
vim /usr/local/apache/etc/extra/httpd-vhosts.conf
<VirtualHost *:80>
ServerAdmin XXX@163.com
DocumentRoot "/usr/local/apache/htdocs" # 项目路径
ServerName ip或者域名
ErrorLog "logs/default.com-error_log"
CustomLog "logs/default.com-access_log" common
<Directory "/usr/local/apache//htdocs/my">
Options Indexes FollowSymLinks
AllowOverride None
Require all granted
</Directory>
</VirtualHost>
4. 重启apache
apachectl restart