formatDateTime:function(inputTime) {

   var date = new Date(inputTime);

   var y = date.getFullYear();

   var m = date.getMonth() + 1;

   m = m < 10 ? ('0' + m) : m;

   var d = date.getDate();

   d = d < 10 ? ('0' + d) : d; 

   var h = date.getHours();

   h = h < 10 ? ('0' + h) : h;

  var minute = date.getMinutes();

  var second = date.getSeconds();

  minute = minute < 10 ? ('0' + minute) : minute;

  second = second < 10 ? ('0' + second) : second;

 return y + '-' + m + '-' + d+' '+h+':'+minute+':'+second;

}

直接调用传时间戳就行