批量删除checkbox前台后台

<%@ page contentType="text/html;charset=UTF-8" %>
<%@ include file="/WEB-INF/views/include/taglib.jsp"%>
<html>
<head>
<title>探测器管理</title>
<meta name="decorator" content="default"/>
<script type="text/javascript">
$(document).ready(function() {
$("#inputForm").validate({
rules: {
ampDevice:{ required:true}
}});
$("#btnExport").click(function(){
top.$.jBox.confirm("确认要导出探测器数据吗？","系统提示",function(v,h,f){
if(v=="ok"){
$("#searchForm").attr("action","${ctx}/cx/ampDevice/export");
$("#searchForm").submit();
}
},{buttonsFocus:1});
top.$('.jbox-body .jbox-icon').css('top','55px');
});
$("#btnImport").click(function(){
$.jBox($("#importBox").html(), {title:"导入数据", buttons:{"关闭":true},
bottomText:"导入文件不能超过5M，仅允许导入“xls”或“xlsx”格式文件！"});
});
});
function allcheck() {
var nn = $("#allboxs").is(":checked"); //判断th中的checkbox是否被选中，如果被选中则nn为true，反之为false
if(nn == true) {
var namebox = $("input[name^='boxs']"); //获取name值为boxs的所有input
for(i = 0; i < namebox.length; i++) {
namebox[i].checked=true; //js操作选中checkbox
}
}
if(nn == false) {
var namebox = $("input[name^='boxs']");
for(i = 0; i < namebox.length; i++) {
namebox[i].checked=false;
}
}
};
function del(){
debugger;
var check = [];//定义一个空数组
$("#contentTable").find(":checkbox:checked").each(function(){
var val = $(this).parent().next().text();
check.push(val);
});
var msg = "确认要删除这些探测器吗？\n\n请确认！";
if (confirm(msg)==true){
$.ajax({
type : "post",
url : "/cxfvp/a/cx/ampDevice/check",
data : {"check":check},
traditional:true,
datatype:"json",
success:function(dates){
// alert(dates);
location.reload();
},
error: function() {
alert("失败，请稍后再试！");
}
});
}else{
return false;
}
};
$(function hidecolumn() {
$('#contentTable tr').find('td:eq(1)').hide();
$('#contentTable tr').find('th:eq(1)').hide();
});
function page(n,s){
$("#pageNo").val(n);
$("#pageSize").val(s);
$("#searchForm").submit();
return false;
}
</script>
</head>
<body>
<div >修改</a>

<%--<a href="${ctx}/cx/ampChannel/form?deviceId=${ampDevice.id}">添加传感器</a>--%>
</td></shiro:hasPermission>
</tr>
</c:forEach>
</tbody>
</table>
<div class="pagination">${page}</div>
</body>
</html>