在tomcat目录下:jakarta-tomcat-5.0.28\conf\Catalina
的目录下添加一个你需要的虚拟主机名文件夹:www.ynftp.com
在这个文件夹里添加上你的ynftp.xml配置文件:
<?xml version='1.0' encoding='GBK'?>
<Context displayName="ktvmonitor" docBase="D:\projects\ynftp\WebRoot" path="/" reloadable="true" workDir="work\Catalina\localhost\ynftp">
  <Logger className="org.apache.catalina.logger.FileLogger" prefix="localhost_limitnet_log." suffix=".txt" timestamp="true"/>
</Context>
----------------------------------------------------
在tomcat的server.xml文件里加入例:<Server port="8005" shutdown="SHUTDOWN" debug="0">  <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener"
            debug="0"/>
  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"
            debug="0"/>
  <GlobalNamingResources>
    <Environment name="simpleValue" type="java.lang.Integer" value="30"/>
    <Resource name="UserDatabase" auth="Container"
              type="org.apache.catalina.UserDatabase"
       description="User database that can be updated and saved">
    </Resource>
    <ResourceParams name="UserDatabase">
      <parameter>
        <name>factory</name>
        <value>org.apache.catalina.users.MemoryUserDatabaseFactory</value>
      </parameter>
      <parameter>
        <name>pathname</name>
        <value>conf/tomcat-users.xml</value>
      </parameter>
    </ResourceParams>  </GlobalNamingResources>
  <Service name="Catalina">
    <Connector port="8082"
               maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
               enableLookups="false" redirectPort="8443" acceptCount="100"
               debug="0" connectionTimeout="20000" 
               disableUploadTimeout="true" />    <Connector port="8009" 
               enableLookups="false" redirectPort="8443" debug="0"
               protocol="AJP/1.3" /> 
    <Engine name="Catalina" defaultHost="localhost" debug="0">      <Logger className="org.apache.catalina.logger.FileLogger"
              prefix="catalina_log." suffix=".txt"
              timestamp="true"/>      <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
                 debug="0" resourceName="UserDatabase"/>
      <Host name="localhost" debug="0" appBase="webapps"
       unpackWARs="true" autoDeploy="true"
       xmlValidation="false" xmlNamespaceAware="false">
        <Logger className="org.apache.catalina.logger.FileLogger"
                 directory="logs"  prefix="localhost_log." suffix=".txt"
            timestamp="true"/>
      </Host>   <!--加入的部份-->
  <Host name="www.ynftp.com" debug="0" appBase="D:\projects\ynftp\WebRoot"
       unpackWARs="true" autoDeploy="true"
       xmlValidation="false" xmlNamespaceAware="false">
        <Logger className="org.apache.catalina.logger.FileLogger"
                 directory="logs"  prefix="localhost_log." suffix=".txt"
            timestamp="true"/>
      </Host>    </Engine>  </Service></Server>
如果有N个虚拟主机就加N个Host就行了