File list (Check if you may need any files):
聊天程序
........\Example 3 SG.jpx
........\Example 3 SG.jpx.local
........\Example 3 SG.oif
........\Servlet.library
........\ChatModule
........\..........\login.htm
........\..........\send.htm
........\..........\WEB-INF
........\..........\.......\web.xml
........\..........\.......\classes
........\..........\.......\.......\example_3_sg
........\..........\.......\.......\............\DisplayServlet.class
........\..........\.......\.......\............\MainServlet.class
........\..........\.......\.......\............\MessageServlet.class
........\..........\.......\.......\............\UserList.class
........\..........\.......\lib
........\..........\.......\...\junit.jar
........\..........\.......\...\unittest.jar
........\src
........\...\example_3_sg
........\...\............\DisplayServlet.java
........\...\............\MainServlet.java
........\...\............\MessageServlet.java
........\...\............\UserList.java