制作登录界面，登录成功后把用户名放在session里，在第3个页面读取session显示用户名 

<%@ 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>登录界面</title>
</head>
<body>
<form action="denglu2.jsp" method="post">
用户名<input type="text"  name="username"/>
<br>
密码&nbsp&nbsp&nbsp&nbsp <input type="password" name="password"/>
<br>
<input type="submit" value="登录"/>
</form>
</body>
</html>
                         <%@ 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>接收界面</title>
</head>
<body>
<%
String un=new String(request.getParameter("username").getBytes("ISO-8859-1"),"UTF-8");
session.setAttribute("zhanghao",un);
String pw=request.getParameter("password");
session.setAttribute("mima", pw);
%>

</body>
</html>
<%@ 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>显示界面</title>
</head>
<body>
<%
String zh=session.getAttribute("zhanghao").toString();
String mm=session.getAttribute("mima").toString();
%>您的账号是：
<%out.print(zh); %>
<br>您的密码是：
<%
out.print(mm);
%>
</body>
</html>

posted @ 2016-06-27 18:38  ①乷壹迣鎅  阅读(5423)  评论(0)  编辑  收藏  举报