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购物车一

2024-07-16 12:17:34   226人阅读

<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%><html>  <body>    <%        ArrayList books = new ArrayList();        books.add("三国演义");        books.add("西游记");        books.add("水浒传");        //将books放进session 名字为book        session.setAttribute("book",books);     %>     <a href=http://www.mamicode.com/MyJsp2.jsp>查看购物车"java" import="java.util.*" pageEncoding="gb2312"%><html> <body>       购物车内容为：       <hr>       <%             //从session中取出名为book的 放入数组中           ArrayList books = (ArrayList)session.getAttribute("book");           for(int i = 0;i<books.size();i++)           {               String book = (String)books.get(i);               out.println(book + "<BR>");           }        %>  </body>

 

<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%><html> <body>    <form action = "MyJsp3.jsp" method = "post">        请你输入书本：<input name ="book", type = "text">        <input type = "submit" value = "http://www.mamicode.com/添加到购物车">    </form>    <hr>    <%
        //取出名为books的        ArrayList book = (ArrayList)session.getAttribute("books");        if(book==null)  //如果没有 也就是第一次        {            out.print("wzz");            book = new ArrayList();            session.setAttribute("books",book);        }        String book1 = request.getParameter("book");        if(book1!=null)        {            book1 = new String(book1.getBytes("ISO-8859-1"));            book.add(book1);        }    %> 购物车里的内容：<br> <%     for(int i =0;i<book.size();i++)     {
         //从数组里取出         out.println(book.get(i)+"<BR>");     }  %>       </body></html>

 


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