编写一个简单的留言簿，实现添加留言和显示留言内容的功能
1 <%@ page language="java" contentType="text/html; charset=UTF-8" 2 pageEncoding="UTF-8"%> 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 4 <html> 5 <head> 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 7 <title>登录页面</title> 8 </head> 9 <body> 10 11 <form action="liuyan.jsp" method="post"> 12 <table width="300" height="300" border="0" align="center"> 13 <tr height="80" align="center"> 14 <td colspan="2"><font size="24">留言发布栏</font></td></tr> 15 <tr height="30"> 16 <td width="80" align="right">用户名：</td> 17 <td><input type="text" name="name"></td></tr> 18 <tr height="30"> 19 <td width="80" align="right"> 密 码：</td> 20 <td> <input type="password" name="password"></td></tr> 21 <tr height="20"><td colspan="2"></td></tr> 22 <tr height="30"> 23 <td width="80" align="right">标 题：</td> 24 <td><input type="text" name="biaoti"></td></tr> 25 <tr><td width="80" align="right">内 容：</td> 26 <td><textarea name="neirong" rows="4" cols="20"></textarea></td></tr> 27 <tr><td height="40" align="center" colspan="2"> 28 <input type="submit" value="提交"></td></tr> 29 </table> 30 </form> 31 </body> 32 </html>
1 <%@page import="javax.swing.text.Style"%> 2 <%@ page language="java" contentType="text/html; charset=UTF-8" 3 pageEncoding="UTF-8"%> 4 <%@ page import="java.util.*" %> 5 <%@ page import="java.text.SimpleDateFormat" %> 6 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 7 <html> 8 <head> 9 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 10 <title>留言板</title> 11 </head> 12 <body> 13 14 <%! String str= ""; %> 15 <% 16 String bt = new String( request.getParameter("biaoti").getBytes("ISO-8859-1"),"UTF-8"); 17 String nr = new String( request.getParameter("neirong").getBytes("ISO-8859-1"),"UTF-8"); 18 String xm = new String( request.getParameter("name").getBytes("ISO-8859-1"),"UTF-8"); 19 20 Date date = new Date(); 21 SimpleDateFormat da = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 22 String time = da.format(date); 23 if(bt.isEmpty()){ 24 str += "<br>标 题：标题被吃了" + "<br>内 容：" + nr + "<br>发布者：" + xm + "<br>发布时间：" + time + "<hr>"; 25 }else{ 26 str += "<br>标 题：" + bt + "<br>内 容：" + nr + "<br>发布者：" + xm + "<br>发布时间：" + time + "<hr>"; 27 } 28 %> 29 <table width="800" border="0" align="center"> 30 <tr height="80" align="center"><td><%= "<font size='36'><b><i>留言板</i></b></font>" %></td></tr> 31 <tr><td><%= str %></td></tr> 32 33 </table> 34 35 36 </body> 37 </html>
运行：
