addtocart.jsp

来自「郭克华j2ee高级框架实战教学视频源代码 这个是比较值得一看的 由郭克华博士」· JSP 代码 · 共 29 行

JSP
29
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<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>    
    <title>My JSP 'requestTest1.jsp' starting page</title>
  </head>
  
  <body> 
    This is my JSP page. <br>
    <form action="addToCart.jsp">
    	输入一本书:<input name="book"><BR>
    	<input type="submit" value="添加到购物车">
    </form>
	<%
		String book = request.getParameter("book");
		if(book!=null){//添加到购物车
			ArrayList gwc = (ArrayList)session.getAttribute("gwc");
			if(gwc==null){
				gwc = new ArrayList();
				session.setAttribute("gwc",gwc);
			}
			gwc.add(book);
		}		
	%>
    <a href="cart.jsp">查看购物车</a>
  </body>
</html>

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