反序列化客户端AJAX JSON日期

Given the following JSON Date representation:

给出以下JSON日期表示:

"\/Date(1221644506800-0700)\/"

How do you deserialize this into it's JavaScript Date-type form?

如何将其反序列化为JavaScript数据类型的表单?

I've tried using MS AJAX JavaScrioptSerializer as shown below:

我试过使用MS AJAX JavaScrioptSerializer，如下所示:

Sys.Serialization.JavaScriptSerializer.deserialize("\/Date(1221644506800-0700)\/")

However, all I get back is the literal string date.

但是，我得到的只是字符串日期。

7 个解决方案

#1

Provided you know the string is definitely a date I prefer to do this :

如果你知道字符串一定是我喜欢的日期:

 new Date(parseInt(value.replace("/Date(", "").replace(")/",""), 10))

#2

Bertrand LeRoy, who worked on ASP.NET Atlas/AJAX, described the design of the JavaScriptSerializer DateTime output and revealed the origin of the mysterious leading and trailing forward slashes. He made this recommendation:

伯特兰·勒罗伊，他在ASP工作。NET Atlas/AJAX，描述了JavaScriptSerializer DateTime输出的设计，并揭示了神秘的前斜线和后斜线的起源。他这个建议:

run a simple search for "\/Date((\d+))\/" and replace with "new Date($1)" before the eval (but after validation)

运行一个简单的搜索“\/Date(\d+) \/”，并在eval(验证后)之前用“new Date($1)”替换

I implemented that as:

我实现了这个:

var serializedDateTime = "\/Date(1271389496563)\/";
document.writeln("Serialized: " + serializedDateTime + "<br />");

var toDateRe = new RegExp("^/Date\\((\\d+)\\)/$");
function toDate(s) {
    if (!s) {
        return null;
    }
    var constructor = s.replace(toDateRe, "new Date($1)");
    if (constructor == s) {
        throw 'Invalid serialized DateTime value: "' + s + '"';
    }
    return eval(constructor);
}

document.writeln("Deserialized: " + toDate(serializedDateTime) + "<br />");

This is very close to the many of the other answers:

这与其他许多答案非常接近:

Use an anchored RegEx as Sjoerd Visscher did -- don't forget the ^ and $.
使用一个固定的正则表达式是会维斯——别忘了^和$。
Avoid string.replace, and the 'g' or 'i' options on your RegEx. "/Date(1271389496563)//Date(1271389496563)/" shouldn't work at all.
避免字符串。替换，以及你的正则表达式中的“g”或“i”选项。“/日期(1271389496563)/日期(1271389496563)/”根本不应该工作。

#3

A JSON value is a string, number, object, array, true, false or null. So this is just a string. There is no official way to represent dates in JSON. This syntax is from the asp.net ajax implementation. Others use the ISO 8601 format.

JSON值是一个字符串、数字、对象、数组、true、false或null。这只是一个字符串。JSON中没有表示日期的正式方式。此语法来自asp.net ajax实现。其他的使用ISO 8601格式。

You can parse it like this:

你可以这样来解析:

var s = "\/Date(1221644506800-0700)\/";
var m = s.match(/^\/Date\((\d+)([-+]\d\d)(\d\d)\)\/$/);
var date = null;
if (m)
  date = new Date(1*m[1] + 3600000*m[2] + 60000*m[3]);

#4

The regular expression used in the ASP.net AJAX deserialize method looks for a string that looks like "/Date(1234)/" (The string itself actually needs to contain the quotes and slashes). To get such a string, you will need to escape the quote and back slash characters, so the javascript code to create the string looks like "\"\/Date(1234)\/\"".

net AJAX反序列化方法中使用的正则表达式查找一个看起来像“/Date(1234)/”的字符串(字符串本身实际上需要包含引号和斜杠)。要获得这样的字符串，您需要避免引号和反斜杠字符，因此创建字符串的javascript代码看起来像“\”\ \日期(1234)\/\“”。

This will work.

这将工作。

Sys.Serialization.JavaScriptSerializer.deserialize("\"\\/Date(1221644506800)\\/\"")

It's kind of weird, but I found I had to serialize a date, then serialize the string returned from that, then deserialize on the client side once.

这有点奇怪，但我发现我必须序列化一个日期，然后序列化从中返回的字符串，然后在客户端反序列化一次。

Something like this.

是这样的。

Script.Serialization.JavaScriptSerializer jss = new Script.Serialization.JavaScriptSerializer();
string script = string.Format("alert(Sys.Serialization.JavaScriptSerializer.deserialize({0}));", jss.Serialize(jss.Serialize(DateTime.Now)));
Page.ClientScript.RegisterStartupScript(this.GetType(), "ClientScript", script, true);

#5

For those who don't want to use Microsoft Ajax, simply add a prototype function to the string class.

对于那些不想使用Microsoft Ajax的人，只需向string类添加一个原型函数即可。

E.g.

如。

    String.prototype.dateFromJSON = function () {
    return eval(this.replace(/\/Date\((\d+)\)\//gi, "new Date($1)"));
};

Don't want to use eval? Try something simple like

不想使用eval?尝试一些简单的喜欢

var date = new Date(parseInt(jsonDate.substr(6)));

As a side note, I used to think Microsoft was misleading by using this format. However, the JSON specification is not very clear when it comes to defining a way to describe dates in JSON.

顺便说一句，我曾经认为微软使用这种格式是在误导别人。但是，在定义一种用JSON描述日期的方法时，JSON规范不是很清楚。

#6

The big number is the standard JS time

最大的数字是标准的JS时间

new Date(1221644506800)

Wed Sep 17 2008 19:41:46 GMT+1000 (EST)

星期三2008年9月17日19:41:46 GMT+1000(东部时间)

#7

Actually, momentjs supports this kind of format, you might do something like:

实际上，momentjs支持这种格式，你可以做以下事情:

    var momentValue = moment(value);

    momentValue.toDate();

This returns the value in a javascript date format

这将以javascript日期格式返回值。

#1