这是我的代码，但是不会修改价格那个label，应该将我自己数据库的数据怎么贴进去，当我点击+或者-来选择数量的时候，后面的价格会跟着变，总价也会跟着变呢
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@page import="Db.Db"%>
<%@ page import="java.sql.*"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<title>购物车</title>
<link href="css/index.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="js/jquery.1.4.2-min.js"></script>
<script type="text/javascript" src="js/Calculation.js"></script>
<script type="text/javascript">
$(document).ready(function () {
//jquery特效制作复选框全选反选取消(无插件)
// 全选
$(".allselect").click(function () {
$(".gwc_tb2 input[name=newslist]").each(function () {
$(this).attr("checked", true);
// $(this).next().css({ "background-color": "#3366cc", "color": "#ffffff" });
});
GetCount();
});
//反选
$("#invert").click(function () {
$(".gwc_tb2 input[name=newslist]").each(function () {
if ($(this).attr("checked")) {
$(this).attr("checked", false);
//$(this).next().css({ "background-color": "#ffffff", "color": "#000000" });
} else {
$(this).attr("checked", true);
//$(this).next().css({ "background-color": "#3366cc", "color": "#000000" });
}
});
GetCount();
});
//取消
$("#cancel").click(function () {
$(".gwc_tb2 input[name=newslist]").each(function () {
$(this).attr("checked", false);
// $(this).next().css({ "background-color": "#ffffff", "color": "#000000" });
});
GetCount();
});
// 所有复选(:checkbox)框点击事件
$(".gwc_tb2 input[name=newslist]").click(function () {
if ($(this).attr("checked")) {
//$(this).next().css({ "background-color": "#3366cc", "color": "#ffffff" });
} else {
// $(this).next().css({ "background-color": "#ffffff", "color": "#000000" });
}
});
// 输出
$(".gwc_tb2 input[name=newslist]").click(function () {
// $("#total2").html() = GetCount($(this));
GetCount();
//alert(conts);
});
});
//******************
function GetCount() {
var conts = 0;
var aa = 0;
$(".gwc_tb2 input[name=newslist]").each(function () {
if ($(this).attr("checked")) {
for (var i = 0; i < $(this).length; i++) {
conts += parseInt($(this).val());
aa += 1;
}
}
});
$("#shuliang").text(aa);
$("#zong1").html((conts).toFixed(2));
$("#jz1").css("display", "none");
$("#jz2").css("display", "block");
}
</script>
</head>
<%
String[] strgid = request.getParameterValues("addOrders");
Connection conn = null;
Statement stmt = null;
Statement stmt1 = null;
ResultSet rs = null;
conn = Db.getconn();
stmt = conn.createStatement();
%>
<body>
<div class="gwc" style=" margin:auto;">
<table cellpadding="0" cellspacing="0" class="gwc_tb1">
<tr>
<td class="tb1_td1"><input id="Checkbox1" type="checkbox" class="allselect"/></td>
<td class="tb1_td1">全选</td>
<td class="tb1_td3">商品</td>
<td class="tb1_td5">数量</td>
<td class="tb1_td6">单价</td>
<td class="tb1_td7">操作</td>
</tr>
</table>
<!---商品加减算总数---->
<script type="text/javascript">
$(function () {
var t = $("#text_box1");
$("#add1").click(function () {
t.val(parseInt(t.val()) + 1)
setTotal(); GetCount();
})
$("#min1").click(function () {
t.val(parseInt(t.val()) - 1)
setTotal(); GetCount();
})
function setTotal() {
$("#total1").html((parseInt(t.val()) * 9).toFixed(2));
$("#newslist-1").val(parseInt(t.val()) * 9);
}
setTotal();
})
</script>
<table cellpadding="0" cellspacing="0" class="gwc_tb2">
<%
for(int i = 0;i<strgid.length;i++) {
int gid = Integer.parseInt(strgid[i]);
rs = stmt.executeQuery("select * from goods where gid ="+gid);
while(rs.next()) {
%>
<tr>
<td class="tb2_td1"><input type="checkbox" value="1" name="newslist" id="newslist-1" /></td>
<td class="tb2_td2"><a href="#"><img src="<%=rs.getString("gpicture") %>"/></a></td>
<td class="tb2_td3"><a href="#"><%=rs.getString("gname") %></a></td>
<td class="tb1_td5">
<input id="min1" name="" style=" width:20px; height:18px;border:1px solid #ccc;" type="button" value="-" />
<input id="text_box1" name="" type="text" value="1" style=" width:30px; text-align:center; border:1px solid #ccc;" />
<input id="add1" name="" style=" width:20px; height:18px;border:1px solid #ccc;" type="button" value="+" />
</td>
<td class="tb1_td6"><label id="total1" name="total2" class="tot" " style="color:#ff5500;font-size:14px; font-weight:bold;" ><%=rs.getString("gprice") %></label></td>
<td class="tb1_td7"><a href="#">删除</a></td>
</tr>
<%}
}%>
</table>
<!---商品加减算总数---->
<script type="text/javascript">
$(function () {
var t = $("#text_box2");
$("#add2").click(function () {
t.val(parseInt(t.val()) + 1)
setTotal(); GetCount();
})
$("#min2").click(function () {
t.val(parseInt(t.val()) - 1)
setTotal(); GetCount();
})
function setTotal() {
$("#total2").html((parseInt(t.val()) * 8).toFixed(2));
$("#newslist-2").val(parseInt(t.val()) * 8);
}
setTotal();
})
</script>
<!---总数---->
<script type="text/javascript">
$(function () {
$(".quanxun").click(function () {
setTotal();
//alert($(lens[0]).text());
});
function setTotal() {
var len = $(".tot");
var num = 0;
for (var i = 0; i < len.length; i++) {
num = parseInt(num) + parseInt($(len[i]).text());
}
//alert(len.length);
$("#zong1").text(parseInt(num).toFixed(2));
$("#shuliang").text(len.length);
}
//setTotal();
})
</script>
<table cellpadding="0" cellspacing="0" class="gwc_tb3">
<tr>
<td class="tb1_td1"><input id="checkAll" class="allselect" type="checkbox" /></td>
<td class="tb1_td1">全选</td>
<td class="tb3_td1">
<input id="invert" type="checkbox" />反选
<input id="cancel" type="checkbox" />取消
</td>
<td class="tb3_td2">已选商品 <label id="shuliang" style="color:#ff5500;font-size:14px; font-weight:bold;">0</label> 件</td>
<td class="tb3_td3">合计(不含运费):<span>￥</span><span style=" color:#ff5500;"><label id="zong1" style="color:#ff5500;font-size:14px; font-weight:bold;"></label></span></td>
<td class="tb3_td4"><span id="jz1">结算</span><a href="#" style=" display:none;" class="jz2" id="jz2">结算</a></td>
</tr>
</table>
</div>
</body>
</html>
