📄 showcart.jsp

📁 java编写的网络购物简洁版
💻 JSP
字号:
<%@ page contentType="text/html; charset=GB2312" %>
<%@ include file="/gouwuche/common.jsp" %>
<%@page import="java.util.Collection,java.util.Iterator" %>
<jsp:useBean id="cart" scope="session"
             class="shop.CartBean"></jsp:useBean>
    
<html>
    <head><title>欢迎光临网上书店</title></head>
    <body>
    <%
        request.setCharacterEncoding("GB2312");
        String action=request.getParameter("action");
        
       if(action!=null && action.equals("保存修改"))
        {
            String strItemNum=request.getParameter("itemnum");
            
           int itemNum=Integer.parseInt(strItemNum);
            
           // System.out.println(itemNum);  //购物车中项目数
            
            
            for(int i=0;i<itemNum;i++)
             {
                         
                String strBookId=request.getParameter("book_"+i);
                String strNum=request.getParameter("num_"+i);
                
               //System.out.println(strBookId);   //图书ID
                //System.out.println(strNum);      //图书数量
              
              int productId=Integer.parseInt(strBookId);
				int quantity=Integer.parseInt(strNum);
				
			    boolean bEnough=pDAO.isAmountEnough(productId,quantity);
				
              if(bEnough == true)
                {
                // System.out.println("ok"); 
                    
                    cart.setItemNum(new Integer(productId),quantity);
                }
              else
                {
                    //System.out.println("false"); 
                    
                    productBean pBean=pDAO.getproduct(productId);
                    out.println("<font color=\"red\" size=\"4\">");
                    out.print("《"+pBean.getProductName()+"》");
                    out.print("的库存数量只有"+pBean.getAmout()+"本，请调整购买数量!<p>");
                    out.println("</font>");
                }
                
              }
        }
    %>
    <%
        Collection cl=cart.getItems();
        
       if(cl.size()<=0)
        {
            out.println("购物车中没有图书<p>");
    %>
        <a href="admingouwuche.jsp">继续购物</a>
    <%
            
        }
        Iterator it=cl.iterator();
    %>
        <form name="theform" action="showcart.jsp" method="POST">
            <table border="1" align="center">
                <tr>
                    <th>书名</th>
                    <th>价格</th>
                    <th>数量</th>
                    <th>小计</th>
                    <th>取消</th>
                </tr>
   <%
        int i=0;
        while(it.hasNext())
        {
            CartItemBean cartItem=(CartItemBean)it.next();
            productBean pBean=cartItem.getproduct();
           
           int productId=pBean.getProductID();

            String fieldNum="num_"+i;
            String fieldBook="book_"+i;
    %>
                <tr>
                    <td><%=pBean.getProductName() %></td>
                    <td><%=pBean.getPrice() %></td>
                    <td>
                        <input type="text" name="<%=fieldNum%>"
                               value="<%=cartItem.getQuantity() %>"
                               size="2"/>
                        <input type="hidden" name="<%=fieldBook%>" 
                               value="<%=productId%>"/>
                    </td>
                    <td><%=cartItem.getItemPrice() %></td>
                    <td><a href="delitem.jsp?id=<%=productId%>">删除</a></td>
                </tr>
    <%
            i++;
        }
    %>
                <tr>
                    <td>合计</td>
                    <td colspan="4"><%=cart.getTotalPrice() %></td>
                </tr>
            </table><p>
            <input type="hidden" name="itemnum" value="<%=i%>"/>
           <body><div align="left"> <input type="submit" name="action" value="保存修改"/></div></body>
            
            <body><div align="center"><a href="admingouwuche.jsp">继续购物</a> <A href = "check-out.jsp">进入结算中心</A></div></body>
            
            
           
            
        </form>
    </body>
</html>
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