bookshowcart.jsp

jsp 应用开发技术光盘 是《jsp应用开发技术》这本书的源代码

<%@page pageEncoding="GB2312"%>
<%@page contentType="text/html; charset=gb2312"%>
<%request.setCharacterEncoding("gb2312");%>

<%@ page import="java.util.*,database.*,cart.*" %>
<jsp:useBean id="bookDB" class="database.BookDB" scope="page" >
  <jsp:setProperty name="bookDB" property="database" value="${bookDBAO}" />
</jsp:useBean>


<%
	ShoppingCart cart = (ShoppingCart) session.getAttribute("cart");
	String clear=request.getParameter("Clear");
	
	String bookId=request.getParameter("Remove");	
%>

<%if((clear != null) && clear.equals("clear")){	
%>
    <font color="red" size="+2"><strong> 
    购物车已清空
    </strong><br>&nbsp;<br></font>
<%}%>
 
<%
if(!bookId.equals("0")){	
	
	bookDB.setBookId(bookId);
	BookDetails removedBook=bookDB.getBookDetails();	
%>    
    <font color="red" size="+2">
    	已删除<em><%=removedBook.getTitle()%></em>.
    </font>    	 
    <br><br>
<%}%>
<%
if(cart.getNumberOfItems()>0){
%>
    <font size="+2">
	<%
	if(cart.getNumberOfItems()>1){
	%>           
   		购物清单   
  <%}%>
    </font><br>

    <table> 
    	<tr> 
    		<th align=left>数量</TH> 
    		<th align=left>书名</TH> 
    		<th align=left>价格</TH> 
    	</tr>
    	<%for(Iterator iter=cart.getItems().iterator();iter.hasNext();){
    	
    		ShoppingCartItem item=(ShoppingCartItem)iter.next();
    		BookDetails book=(BookDetails)item.getItem();    
    	%>	
        <tr> 
        	<td align="left" bgcolor="#ffffff"> 
        		<%=item.getQuantity()%>
        	</td> 
        	<td align="left" bgcolor="#ffffaa">         
        		<strong><a href="bookdetails?bookId=<%=book.getBookId()%>&Clear=0"><%=book.getTitle()%></a></strong> 
        	</td> 
        	<td align="left" bgcolor="#ffffaa"> 
       			<%=book.getPrice()%>元 
       		</td>
        	<td align="left" bgcolor="#ffffaa">         
        		<strong><a href="bookshowcart?Remove=<%=book.getBookId()%>">删除</a></strong> 
        	</td>
        </tr>
    <%}%>
    	<tr>
    		<td colspan="5" bgcolor="#ffffff"></td> 
    	</tr>
    	<tr> 
    		<td colspan="2" align="right" bgcolor="#ffffff"> 
    			总计
    		</td> 
    		<td bgcolor="#ffffaa" align="right"> 
    			<%=cart.getTotal()%>元
    		</td>
    		<td><br></td>
    	</tr>
    </table> 

    <p>&nbsp;<p>    
    <strong>
    	<a href="bookcatalog">继续购物</a>&nbsp;&nbsp;&nbsp;      
    	<a href="bookcashier">结账</a>&nbsp;&nbsp;&nbsp;     
    	<a href="bookshowcart?Clear=clear&Remove=0">清空购物车</a>
    </strong>
<%}%>

<%if(cart.getNumberOfItems() <= 0){%>
    <font size="+2">购物车内没有商品</font> 
    <br><br>    
    <strong><a href="bookcatalog">继续购物</a></strong>
<%}%>