一个IP对应多个域名解决思路

<VirtualHost www.域名1:80>
    ServerAdmin [email protected]
    DocumentRoot /opt/lampp/htdocs/域名1目录
    ServerName www.域名1
    ErrorLog logs/dummy-host.example.com-error_log
    CustomLog logs/dummy-host.example.com-access_log common
    <Directory /opt/lampp/htdocs/域名1目录>
      Options Indexes FollowSymLinks MultiViews
      AllowOverride None
      Order deny,allow
#      Alow From all
    </Directory>
</VirtualHost>

<VirtualHost www.域名2:80>
    ServerAdmin [email protected]
    DocumentRoot /opt/lampp/htdocs/域名2目录
    ServerName www.域名2
    ErrorLog logs/dummy-host.example.com-error_log
    CustomLog logs/dummy-host.example.com-access_log common
    <Directory /opt/lampp/htdocs/域名2目录>
      Options Indexes FollowSymLinks MultiViews
      AllowOverride None
      Order deny,allow
#      Alow From all
    </Directory>
</VirtualHost>

<VirtualHost www.域名3:80>
    ServerAdmin [email protected]
    DocumentRoot /opt/lampp/htdocs/域名3目录
    ServerName www.域名3
    ErrorLog logs/dummy-host.example.com-error_log
    CustomLog logs/dummy-host.example.com-access_log common
    <Directory /opt/lampp/htdocs/域名3目录>
      Options Indexes FollowSymLinks MultiViews
      AllowOverride None
      Order deny,allow
#      Alow From all
    </Directory>
</VirtualHost>
现在遇到的问题是前两个好使，第3个域名访问的时候跳转的是第一个域名里的内容。。。求解。。