10-30----作业，实现购物车，退出登陆，登陆记住用户名密码，检查用户是否登陆4个功能
Posted
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了10-30----作业，实现购物车，退出登陆，登陆记住用户名密码，检查用户是否登陆4个功能相关的知识，希望对你有一定的参考价值。
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>Insert title here</title> 8 </head> 9 <body> 10 <% 11 String name = ""; 12 String password = ""; 13 Cookie[] cookies = request.getCookies(); 14 if(cookies!=null&&cookies.length>0){ 15 for(Cookie cookie:cookies){ 16 if("name".equals(cookie.getName())){ 17 name = cookie.getValue(); 18 }else if("password".equals(cookie.getName())){ 19 password = cookie.getValue(); 20 } 21 } 22 } 23 %> 24 <form action="gouwu.jsp" method="post"> 25 账号：<input type="text" name="name" value="<%= name %>"/> 26 密码：<input type="password" name="password" value="<%= password %>"/> 27 <input type="submit" value="提交"/> 28 </form> 29 </body> 30 </html>
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>Insert title here</title> 8 </head> 9 <body> 10 <% 11 String name = request.getParameter("name"); 12 String password = request.getParameter("password"); 13 Cookie cookie1 = new Cookie("name",name); 14 Cookie cookie2 = new Cookie("password",password); 15 response.addCookie(cookie1); 16 response.addCookie(cookie2); 17 18 Object sessionname = session.getAttribute("name"); 19 if(sessionname==null) 20 response.sendRedirect("login.jsp"); 21 session.setAttribute("name", name); 22 session.setMaxInactiveInterval(60*60); 23 24 %> 25 <form action="gouwuresult.jsp" method="post"> 26 请输入您想要购买的商品名称：<input type="text" name="namesp" /><br/> 27 请输入您想要购买的商品数量：<input type="text" name="number" /><br/> 28 <input type="submit" value="提交" /><br/> 29 </form> 30 <br/> 31 <a href="gouwuchexianshi.jsp">查看购物车中的商品</a><br/> 32 <a href="logout.jsp">退出登陆</a> 33 </body> 34 </html>
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>Insert title here</title> 8 </head> 9 <body> 10 <% 11 Object sessionname = session.getAttribute("name"); 12 if(sessionname==null) 13 response.sendRedirect("login.jsp"); 14 15 out.print("购物车中商品如下：<br/>"); 16 Cookie[] cookies = request.getCookies(); 17 if(cookies!=null&&cookies.length>0){ 18 for(int i =0 ;i<cookies.length;i++){ 19 if(!cookies[i].getName().equals("name")&&!cookies[i].getName().equals("password")){ 20 out.print(cookies[i].getName() + " " + cookies[i].getValue() + "<br/>"); 21 } 22 } 23 }else{ 24 out.print("您的购物车没有商品<br/>"); 25 } 26 %> 27 <a href="gouwu.jsp">返回购物页面</a> 28 </body> 29 </html>
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>Insert title here</title> 8 </head> 9 <body> 10 <% 11 session.invalidate(); 12 out.print("您已经退出登陆"); 13 %> 14 <br/> 15 <a href="gouwu.jsp">试试回到购物页面以检验是否成功消除session</a> 16 </body> 17 </html>
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>Insert title here</title> 8 </head> 9 <body> 10 <% 11 Object sessionname = session.getAttribute("name"); 12 if(sessionname==null) 13 14 response.sendRedirect("login.jsp"); 15 String namesp = request.getParameter("namesp"); 16 String number = request.getParameter("number"); 17 Cookie cookie1 = new Cookie("namesp"+Math.random(),namesp); 18 Cookie cookie2 = new Cookie("number"+Math.random(),number); 19 response.addCookie(cookie1); 20 response.addCookie(cookie2); 21 22 out.print("该商品已经添加到购物车"); 23 %> 24 <br/> 25 <a href="gouwu.jsp">回到购物页面</a> 26 <a href="gouwuchexianshi.jsp">查看购物车中商品</a> 27 </body> 28 </html>
String namesp = request.getParameter("namesp");String number = request.getParameter("number");Cookie cookie1 = new Cookie("namesp"+1,namesp);Cookie cookie2 = new Cookie("number"+1,number);response.addCookie(cookie1);response.addCookie(cookie2);
以上是关于10-30----作业，实现购物车，退出登陆，登陆记住用户名密码，检查用户是否登陆4个功能的主要内容，如果未能解决你的问题，请参考以下文章