1 打開TomCat下文件conf/server.xml，找到這行：<Engine name=”Catalina” defaultHost=”localhost”>
在下面添加你想要的站點：
<Host name="localhost" debug="0" appBase="D:\\Tomcat 5.0\\webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
<Alias>localhost.com</Alias>
<Logger className="org.apache.catalina.logger.FileLogger"
directory="logs" prefix="localhost_log." suffix=".txt"
timestamp="true"/>
<Context path="" docBase="D:\\Tomcat 5.0\\webapps\\gg" reloadable="true" caseSensitive="false" debug="0"></Context>
</Host>
<Host name="one.localhost" debug="0" appBase="D:\\Tomcat 5.0\\webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
<Alias>one.localhost.com</Alias>
<Logger className="org.apache.catalina.logger.FileLogger"
directory="logs" prefix="localhost_log." suffix=".txt"
timestamp="true"/>
<Context path="" docBase="D:\\Tomcat 5.0\\webapps\\kk\\a" reloadable="true" caseSensitive="false" debug="0"></Context>
</Host>
<Host name="two.localhost" debug="0" appBase="D:\\Tomcat 5.0\\webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
<Alias>two.localhost.com</Alias>
<Logger className="org.apache.catalina.logger.FileLogger"
directory="logs" prefix="localhost_log." suffix=".txt"
timestamp="true"/>
<Context path="" docBase="D:\\Tomcat 5.0\\webapps\\kk\\b" reloadable="true" caseSensitive="false" debug="0"></Context>
</Host>
2 如果不是公共的域名（就是外網可解析的），僅僅用於內網研究的。可以修改hosts文件
C:\WINDOWS\system32\drivers\etc\hosts
your Ip custom domain
127.0.0.1 www.youapp.com
//192.168.1.100 www.youapp.com