1、登錄界面
<%@ 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="";
//獲取所有cookie
Cookie[] ck=request.getCookies();
if(ck!=null)
{
//遍歷
for(Cookie co:ck)
{
if(co.getName().equals("name"))
{
name=co.getValue();
}
}
}
%>
請登錄購物賬號
<form action="Test.jsp" method="post">
賬戶：<input type="text" name="name" value="<%=name %>">
密碼：<input type="password" name="password">
<input type="submit" value="點擊登錄">
</form>
</body>
</html>
2，驗證登錄
<%@ 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>
<%
response.setHeader("Cache-Control", "no-cache");
String name= request.getParameter("name");
String password=request.getParameter("password");
if(name == null || password == null || name.equals("") || password.equals(""))
{
out.write("請正確登錄！");
response.setHeader("refresh", "2;url=Denglu.jsp");
}
else{
//驗證
if(name.equals("1234")&&password.equals("123456"))
{
//用cookie記住賬號
//創建cookie
Cookie coo=new Cookie("name",name);
coo.setMaxAge(20*24*3600);
response.addCookie(coo);
//保持登錄狀態
//創建session
session.setAttribute("name", name);
session.setMaxInactiveInterval(20*60);
response.sendRedirect("Gouwuche.jsp");
}
else
{
out.write("用戶名或密碼錯誤");
}
}
%>
</body>
</html>
3.購物界面
<%@page import="java.net.URLEncoder"%>
<%@ 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>
淘寶首頁
<br>
<%
Object obj=session.getAttribute("name");
if(obj==null)
{
out.write("回話超時或未登錄");
response.setHeader("refresh", "2;url=Denglu.jsp");
}
else
{
out.write(obj+",歡迎登錄");
}
%>
<form action="Daoru.jsp" method="post">
請輸入您想要購買的商品名稱：<input type="text" name="namesp" /><br/>
<input type="submit" value="加入購物車" /><br/>
</form>
<br>
<a href="logout.jsp">退出</a>
</body>
</html>
4.退出界面
<%@ 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>
<%
//銷毀session
session.invalidate();
out.print("退出成功");
response.setHeader("refresh", "2;url=Denglu.jsp");
%>
</body>
</html>
5.創建cookie商品
<%@page import="java.net.URLEncoder"%>
<%@ 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 namesp=request.getParameter("namesp");
namesp=new String(namesp.getBytes("ISO-8859-1"),"UTF-8");
//設置cookie
Cookie coo = new Cookie("namesp", URLEncoder.encode(namesp) );//利用cookie記住購物車內的物品
//設置cookie的生命周期為10分鍾
coo.setMaxAge(600);
//發送cookie
response.addCookie(coo);
//跳轉頁面到菜單選擇
response.sendRedirect("ShangPin.jsp");
%>
</body>
</html>
6.購物車內商品
<%@page import="java.net.URLDecoder"%>
<%@ 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 obj=session.getAttribute("name");
if(obj!=null)
{
Cookie[] ck=request.getCookies();
if(ck!=null)
{
for(int i =0 ;i<ck.length;i++){
if(ck[i].getName().equals("namesp")){
out.print(ck[i].getName() + "= " + URLDecoder.decode(ck[i].getValue()) + "<br/>");
}
}
}
else
{
out.write("購物車沒有商品") ;
}
}
else
{
out.write("未登錄");
}
%>
<a href="Gouwuche.jsp">返回進行購物</a>
</body>
</html>