用java实现网站上的留言板功能

				
				
				删除留言
				
				
				
								String p=request.getParameter("delete");
				try
				{
					Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
					Connection con=DriverManager.getConnection("jdbc:odbc:example","devon","book");
					String str="delete from messages where ID="+ p;
					Statement sm=con.createStatement();
					sm.executeUpdate(str);
				
					sm.close();
					con.close();
					response.sendRedirect("http://127.0.0.1:8080/jsp-examples/message/viewleave.jsp");
				}
				catch(Exception e)
				{
					out.print(e.getMessage());
				}
				%>