How to serialize Java Calendar and Java Date to Javascript Date

Question

I want to serialize from Java to JSON objects Java Calendar and Java Date to Javascript Date.

I want that in Javascript, the variable Javascript Date without having to do the "eval" or "new Date" has a Date value.

I tried to return "new Date (timeInMiliseconds)" but I obtained, obviously a 'String'I. I know I can do "eval" to this "String" but I wan't do it. I have also tried to return "miliseconds" and in "Javascript" call "new Date ()", But I do not want to do that.

The JSON currently looks like

 {hours:[
   {date:'new Date(1)', color:'fff'},
   {date:'new Date(2)', color: 'ddd'}, 
   ... ]}

Any suggestions?

Info: I'm using Spring MVC and Jackson to serialize.

Edit#1:

I know this methods:

Java Return ----------------------- Javascript

"new Date(100000)" ------------- var myDate = eval("new Date(100000)");

100000 ------------------------------ var myDate = new Date(10000);

But I'm searching the format that indicate to the client side parsers that the data fragment that was sent is a date representation. But how can you convert it to a JavaScript Date object?

@mplungjan The problem is that Java return String, and I don't like do eval. — earnaz
– earnaz, Commented Jun 4, 2013 at 6:29
@mplungjan Ok. If I try that Java return for each var date is "new Date(miliseconds)". In Javascript, I need do "eval" each String var for get Javscript Date. — earnaz
– earnaz, Commented Jun 5, 2013 at 8:54
@mplungjan The output is from Server Controller to a jQuery plugin that read the json. — earnaz
– earnaz, Commented Jun 7, 2013 at 7:52

mplungjan · Accepted Answer · 2013-06-10 09:24:42Z

2

The answer is no.

You cannot parse a string with date: "new date(123434534)" without eval or new Date(extracted timestamp) like this

object.date=new Date(object.date.replace(/[^\d]/g,""));

I still fail to see why you need to pass a string of "new Date(timestamp)"

You are better off and will save data if you just send the timestamp.

edited Jun 10, 2013 at 9:24

answered Jun 10, 2013 at 8:20

mplungjan

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2 Comments

earnaz Over a year ago

I'm passing a string of "new Date(timestamp)" for trying found a solution. I know that is it a bad idea and thet best solution is return time in milis. So the problem is that I would like that in the client side have a date without do "eval" or "new Date"

mplungjan Over a year ago

As I answered: Not possible

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