简单的购物车应用案例 相关代码4

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
   
    <title>My JSP 'd.jsp' starting page</title>
   
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">   
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <!--
 <link rel="stylesheet" type="text/css" href="styles.css">
 -->

  </head>
 
  <body>
  <%request.setCharacterEncoding("utf-8"); %>
    小伙子你有钱吗?还买东西! <br>
    <a href="e.jsp">清空购物车</a>
  </body>
</html>

 

 

 

 

 

 

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>显示购物车购物信息</title>
  </head>
 
  <body>
            已经清空:<br>
  <%request.setCharacterEncoding("utf-8");
     String str=" ";
    if(session.getAttribute("s1")!=null){
  
   session.removeAttribute("s1");
  
   }
   if(session.getAttribute("s2")!=null){
  
    session.removeAttribute("s2");
  
  
   }
   if(session.getAttribute("s3")!=null){
 
    session.removeAttribute("s3");
 
   }
   if(session.getAttribute("s4")!=null){
 
   session.removeAttribute("s4");
   }
   if(session.getAttribute("s5")!=null){
 
    session.removeAttribute("s5");
   }
   if(session.getAttribute("s6")!=null){
 
  session.removeAttribute("s6");
   }
  
    %>
    <br><br>
    <a href="c.jsp">返回购物车</a><br>
   
  </body>
</html>

 

posted @ 2017-10-14 21:13  红树叶  阅读(227)  评论(0编辑  收藏  举报