How to parse .net DateTime received as json string into java's Date object

Question

I\'m receiving .NET\'s DateTime object as json string through my asmx webservice and trying to parse it with help of gson library. But seems like there\'s no su

Answer 1

I've implemented a GsonHelper, which helps deserializing and serializing .NET DateTime format from JSON using GSON. Usage:

// How to get DataClass object from JSON string
Gson gson = new GsonHelper().getGson();
DataClass DATA = gson.fromJson(YOUR_JSON, DataClass.class);

// How to get JSON string from your JSON data
Gson gson = new GsonHelper().getGson();
String JSON = gson.toJson(DATA);

This is the helper class:

public class GsonHelper 
{   
    public Gson getGson()
    {
        GsonBuilder builder = new GsonBuilder();
        builder.registerTypeAdapter(Date.class, new DotNetDateDeserializer());
        builder.registerTypeAdapter(Date.class, new DotNetDateSerializer());
        return builder.create();
    }

    public class DotNetDateDeserializer implements JsonDeserializer 
    {
        @Override
        public Date deserialize(JsonElement json, Type typfOfT, JsonDeserializationContext context)
        {
            try
            {
                String dateStr = json.getAsString();
                if (dateStr != null) dateStr = dateStr.replace("/Date(", "");
                if (dateStr != null) dateStr = dateStr.replace("+0000)/", "");
                if (dateStr != null) dateStr = dateStr.replace(")/", "");
                long time = Long.parseLong(dateStr);
                return new Date(time);
            }
            catch (Exception ex)
            {
                ex.printStackTrace();
                return null;
            }

        }
    }

    public class DotNetDateSerializer implements JsonSerializer 
    {
        @Override
        public JsonElement serialize(Date date, Type typfOfT, JsonSerializationContext context)
        {
            if (date == null)
                return null;

            String dateStr = "/Date(" + date.getTime() + ")/";
            return new JsonPrimitive(dateStr);
        }
    }

Note: works for two formats: /Date(1362853251000)/ and /Date(1362853251000+0000)/. Helper have to be tuned for other formats with time defined.