这是我自己开发的一个MVC框架

				package dark.web.frame.form;
				
				import java.io.IOException;
				
				import javax.servlet.ServletException;
				
				import dark.web.frame.Message;
				
				/**
				 * Title:            
				 * Description:      
				 * Copyright:        Copyright (c) 2004
				 * Company:          DIS
				 * Create Time:      2004-12-12 1:43:18
				 * @author             darkhe
				 * @version            1.0
				 */
				public class UnknownForm extends AbstractForm
				{
				
					/**
					 * @return
					 * @throws ServletException
					 * @throws IOException
					 * @see dark.web.frame.AbstractForm#validate()
					 */
					public Message validate() throws ServletException, IOException
					{
						setInput("/unknown.jsp");
				
						getRequest().setAttribute("Message", "Don't specify FORM parameter");
				
						Message m = new Message();
						m.setMessage("Message", "Don't specify FORM parameter");
						return m;
					}
				
				}