servlet
.......\.classpath
.......\.mymetadata
.......\.project
.......\src
.......\...\Down.java
.......\...\Up.java
.......\WebRoot
.......\.......\index.jsp
.......\.......\META-INF
.......\.......\........\MANIFEST.MF
.......\.......\WEB-INF
.......\.......\.......\classes
.......\.......\.......\.......\Down.class
.......\.......\.......\.......\Up.class
.......\.......\.......\lib
.......\.......\.......\web.xml