1.
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
<head>
<title></title>
</head>
<body>
<form name="loginForm" action="login.jsp" method="post">
账号：<input type="text" name="uname"><br>
密码：<input type="password" name="password"> <br>
<input type="submit" value="登录" onclick="v()">
</form>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
<head>
<title></title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String uname = request.getParameter("uname");
String password = request.getParameter("password");
if (uname.equals(password)) {
session.setAttribute("uname", uname);
request.getRequestDispatcher("1.main.jsp").forward(request, response);
} else {
response.sendRedirect("1.false.jsp");
}
%>
</body>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
<head>
<title></title>
</head>
<body>
<%
session.invalidate();
response.setHeader("refresh", "5;url=1.login.jsp");
%>
退出成功!
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
<head>
<title></title>
</head>
<body>
登陆失败！
<%
response.setHeader("refresh", "5;url=1.login.jsp");
%>
</body>
</html>
2.
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'main.jsp' starting page</title>
</head>
<body>
<h1>登陆成功！</h1>
<%
String uname = (String) session.getAttribute("uname");
if (uname == null)
response.sendRedirect("login.jsp");
%>
<form action="show.jsp" method="post">
商品：<br> <br>
苹果 ¥9.9<input type="checkbox" name="item" value="苹果">加入购物车 <br>
橙子 ¥7.88 <input type="checkbox" name="item" value="橙子"> 加入购物车 <br>
桔子 ¥6.88<input type="checkbox" name="item" value="桔子"> 加入购物车<br>
<br>
<input type="submit" value="加入购物车">
</form>
<form name="form1" action="logout.jsp" method="post">
<input type="submit" value="退出登录">
</form>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'show.jsp' starting page</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String itemName[]=request.getParameterValues("item");
if(itemName==null){
out.print("未添加购物车");
}
else{
for(int i=0;i<itemName.length;i++){
out.print("("+(i+1)+")"+itemName[i]+"<br>");
}
}
%>
</body>
</html>
posted on
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