File list (Check if you may need any files):
file_upload and download system\.classpath
...............................\.project
...............................\.settings\org.eclipse.jdt.core.prefs
...............................\src\org\sunxin\ch20\servlet\DownloadServlet.java
...............................\...\...\......\....\.......\ImageHandlerServlet.java
...............................\WebContent\index.jsp
...............................\..........\META-INF\context.xml
...............................\..........\........\MANIFEST.MF
...............................\..........\upload.html
...............................\..........\upload.jsp
...............................\..........\upload2.jsp
...............................\..........\WEB-INF\classes\org\sunxin\ch20\servlet\DownloadServlet.class
...............................\..........\.......\.......\...\......\....\.......\ImageHandlerServlet.class
...............................\..........\.......\lib\commons-fileupload-1.2.1.jar
...............................\..........\.......\...\commons-io-1.4.jar
...............................\..........\.......\web.xml
...............................\..........\.......\classes\org\sunxin\ch20\servlet
...............................\..........\.......\.......\...\......\ch20
...............................\src\org\sunxin\ch20\servlet
...............................\WebContent\WEB-INF\classes\org\sunxin
...............................\src\org\sunxin\ch20
...............................\WebContent\WEB-INF\classes\org
...............................\src\org\sunxin
...............................\WebContent\WEB-INF\classes
...............................\..........\.......\lib
...............................\build\classes
...............................\src\org
...............................\WebContent\META-INF
...............................\..........\WEB-INF
...............................\.settings
...............................\build
...............................\src
...............................\WebContent
file_upload and download system