getTime:function(){

var date = new Date(),
year = date.getFullYear(),
month = date.getMonth() + 1,
day = date.getDate(),
hour = date.getHours() < 10 ? "0" + date.getHours() : date.getHours(),
minute = date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes(),
second = date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();
month >= 1 && month <= 9 ? (month = "0" + month) : "";
day >= 0 && day <= 9 ? (day = "0" + day) : "";
var timer = year + '-' + month + '-' + day + ' ' + hour + ':' + minute + ':' + second;
return timer;
},

另外，也可以将从数据库获取到的datetime数据类型的字段作为参数传入该方法,如：

getTime:function(time){

var date = new Date(time),
year = date.getFullYear(),
month = date.getMonth() + 1,
day = date.getDate(),
hour = date.getHours() < 10 ? "0" + date.getHours() : date.getHours(),
minute = date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes(),
second = date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();
month >= 1 && month <= 9 ? (month = "0" + month) : "";
day >= 0 && day <= 9 ? (day = "0" + day) : "";
var timer = year + '-' + month + '-' + day + ' ' + hour + ':' + minute + ':' + second;
return timer;
},