http://www.javaworld.com.tw/jute/post/view?bid=9&id=48247&sty=1&tpg=1&age=-1
關於讓Tomcat 5.0自動Reload Servlet
http://tomcat.apache.org/tomcat-5.0-doc/deployer-howto.html#Deploying%20on%20a%20running%20Tomcat%20server
If the host “autoDeploy” property is true, the host will attempt to deploy and update web applications dynamically, as needed. The host will need to have background processing enabled for automatic reloading to work, which is the default.
see also:http://www.coreservlets.com/Apache-Tomcat-Tutorial/#Servlet-Reloading
http://tomcat.apache.org/tomcat-5.0-doc/config/context.html