httpd.conf

将
#LoadModule vhost_alias_module modules/mod_vhost_alias.so
改为
LoadModule vhost_alias_module modules/mod_vhost_alias.so

将
#Include conf/extra/httpd-vhosts.conf
改为
Include conf/extra/httpd-vhosts.conf

httpd-vhosts.conf

#监听多个端口
Listen 80
Listen 8003
Listen 8004

<VirtualHost *:80>
    #监听80端口，地址是 D:\apache24\htdocs
    DocumentRoot D:\apache24\htdocs
</VirtualHost>

<VirtualHost *:8003>
    DocumentRoot D:\apache24\htdocs/8003
</VirtualHost>

<VirtualHost *:8004>
    DocumentRoot D:\apache24\htdocs/8004
</VirtualHost>