[论坛提问] 关于jstl中forEach的问题，大神看看代码，帮帮忙，怎么计算...

本帖最后由 xingfeichen 于 2015-9-13 19:55 编辑

<%@page import="com.xingfei.product.Product"%>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>forEach遍历商品</title>
</head>
<body>
<table border="1">
<tr>
<th>商品名称</th>
<th>商品数量</th>
<th>商品单价</th>
<th>商品小计</th>
</tr>
<%
ArrayList<Product> al = new ArrayList<Product>();
al.add(new Product("计算机网络",100,20));
al.add(new Product("java编程思想",200,80));
al.add(new Product("javaWeb开发",20,60));
request.setAttribute("products", al);
%>
<c:forEach begin="0" end="3" step="1" items="${products}" var="pts" varStatus="vs">
<tr>
<td>${pts.name}</td>
<td>${pts.mount}</td>
<td>${pts.price}</td>
<td>￥${pts.price*pts.mount}</td>
</tr>
</c:forEach>
<tr>
<td colspan="3">总计</td>
<td>${pts.price*pts.mount}</td>
</tr>
</table>
</body>
</html>

复制代码

怎么计算总价？

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