转换layUI的数据表格中的日期格式

 转换layUI的数据表格中的日期格式

前端jsp代码

 <table class="layui-table"  style="width:100%" lay-data="{url:'/why123/user/findUserAll?userType=0', page:true, id:'idTest'}" lay-filter="demo">
  <thead>
    <tr>
      <th lay-data="{type:'checkbox', fixed: 'left'}"></th>
      <th lay-data="{field:'userName',align:'center'}">用户名</th>
      <th lay-data="{field:'gender',align:'center',width:80}">性别</th>
      <th lay-data="{field:'mobile',align:'center'}">手机号码</th>
      <th lay-data="{field:'email',align:'center'}">电子邮箱</th>
      <th lay-data="{field:'userheat',align:'center',width:100,sort:'true'}">人气</th>
      <th lay-data="{field:'regDate',align:'center',templet:'<div>{{ layui.laytpl.toDateString(d.regDate) }}</div>'}">注册时间</th>
      <th lay-data="{field:'lastLogin',align:'center',templet:'<div>{{ layui.laytpl.toDateString(d.lastLogin) }}</div>'}">最后一次登录时间</th>
      <th lay-data="{fixed: 'right', width:178, align:'center', toolbar: '#barDemo'}">操作</th>
    </tr>
  </thead>
</table>

 js代码：

layui.use('laytpl', function(){
	  var laytpl = layui.laytpl;
	//时间戳的处理
	layui.laytpl.toDateString = function(d, format){
	  if(d==null||d==''){
	      return "未登录";
	}else{
	   var date =new Date(d.time) 
	  ,ymd = [
	    this.digit(date.getFullYear(), 4)
	    ,this.digit(date.getMonth() + 1)
	    ,this.digit(date.getDate())
	  ]
	  ,hms = [
	    this.digit(date.getHours())
	    ,this.digit(date.getMinutes())
	    ,this.digit(date.getSeconds())
	  ];

	  format = format || 'yyyy-MM-dd HH:mm:ss';

	  return format.replace(/yyyy/g, ymd[0])
	  .replace(/MM/g, ymd[1])
	  .replace(/dd/g, ymd[2])
	  .replace(/HH/g, hms[0])
	  .replace(/mm/g, hms[1])
	  .replace(/ss/g, hms[2]);
	}
	}
	//数字前置补零
	layui.laytpl.digit = function(num, length, end){
	  var str = '';
	  num = String(num);
	  length = length || 2;
	  for(var i = num.length; i < length; i++){
	    str += '0';
	  }
	  return num < Math.pow(10, length) ? str + (num|0) : num;
	};
	});

注意：

1、需引入laytpl模块

2、后台返回json的String类型，否则如果数据为空，会出错，错误如下：

net.sf.json.JSONException: Object is null
	net.sf.json.JSONNull.isEmpty(JSONNull.java:69)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:606)
	com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:536)
	com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:663)
	com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:156)
	com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:557)
	com.fasterxml.jackson.databind.ser.std.MapSerializer.serialize(MapSerializer.java:466)
	com.fasterxml.jackson.databind.ser.std.MapSerializer.serialize(MapSerializer.java:29)
	com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serializeContents(CollectionSerializer.java:132)
	com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:94)
	com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:24)
	com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:557)
	com.fasterxml.jackson.databind.ser.std.MapSerializer.serialize(MapSerializer.java:466)
	com.fasterxml.jackson.databind.ser.std.MapSerializer.serialize(MapSerializer.java:29)
	com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:251)
	com.fasterxml.jackson.databind.ObjectWriter.writeValue(ObjectWriter.java:846)
	org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.writeInternal(AbstractJackson2HttpMessageConverter.java:286)
	org.springframework.http.converter.AbstractGenericHttpMessageConverter.write(AbstractGenericHttpMessageConverter.java:106)
	org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:231)
	org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.handleReturnValue(RequestResponseBodyMethodProcessor.java:174)
	org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:81)
	org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:113)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
	org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)