1、留言界面代码
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="jieshou.jsp" method="post">
<table wight="400" height="300" bord="1" bordercolor="FFFFFF" >
<tr align="center" height="40"><td>留言簿</td></tr>
<tr><td>
<textarea rows="30" cols="80" name="liuyan"></textarea>
</td></tr>
<tr align="center" colspan="2"><td>
<input type="submit" value="提交留言">
</td></tr>
</table>
</form>
</body>
</html>
2、接受留言界面代码
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
String name=new String(request.getParameter("liuyan").getBytes("ISO-8859-1"),"UTF-8");
application.setAttribute("liuyan", name);
%>
留言成功！
<a href="xianshi.jsp">点击查看留言</a>
</body>
</html>
3、显示留言代码
<%@page import="lianxi.zhuanhuan"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
Object ly=application.getAttribute("liuyan");
out.print(ly.toString());
%>
</body>
</html>
4、运行结果
原文：http://www.cnblogs.com/jakeasd/p/5631816.html