easyUI如何格式化日期时间

//时间控件

function getdate(val,row,index){

var time = new Date(eval(val).time); //就得到普通的时间了

var date=time.getFullYear()+'-'+(time.getMonth()+1)+'-'+time.getDate()

return date;

}

<table id="tg" class="easyui-datagrid" style="width:400px;height:250px"

data-options="url:'user!getJson.action',fitColumns:true,singleSelect:true,toolbar:'#tb',idField:'id',

rownumbers:true,

pageNumber:1,

singleSelect:false,

pagination:true,

pageSize:5,

pageList:[5,10,20,30,40],

fit:true,

fitColumns:true,

nowrap:false,

border:false">

<div id="toolbar">

<a href="javascript:void(0)" class="easyui-linkbutton" iconCls="icon-add" plain="true" onclick="openAddPage()">新增</a>

<a href="javascript:void(0)" class="easyui-linkbutton" iconCls="icon-cancel" plain="true" onclick="deleteAllStudent()">批量删除</a>

<a href="javascript:void(0)" class="easyui-linkbutton" iconCls="icon-search" plain="true" onclick="searchStudent()">查询</a>

<a href="javascript:void(0)" class="easyui-linkbutton" iconCls="icon-redo" plain="true" onclick="exportStudent()">导出</a>

</div>

<thead>

<tr>

<th data-options="field:'id',width:100,checkbox:true">编码</th>

<th data-options="field:'name',width:100">姓名</th>

<th data-options="field:'realName',width:100,align:'right'">真实姓名</th>

<th data-options="field:'age',width:100,align:'right'">年龄</th>

<th data-options="field:'sex',width:100,align:'right'">性别</th>

<th data-options="field:'phone',width:100">电话</th>

<th data-options="field:'mail',width:100,align:'right'">邮箱</th>

<th data-options="field:'addDate',width:100,align:'right',formatter:getdate">入职日期</th>

<th data-options="field:'dept',width:100,align:'right'">所属部门</th>

<th data-options="field:'role',width:100,align:'right'">职位</th>

</tr>

</thead>

</table>