In our recent project we use java 8. I need to serialize java.time.LocalDateTime to java script Date format.

Currently what I did was define a custom serializer to convert LocalDateTime to timestamp.

public class LocalDateTimeSerializer implements JsonSerializer<LocalDateTime> {

    @Override

    public JsonElement serialize(LocalDateTime localDateTime, Type type, JsonSerializationContext jsonSerializationContext) {

        Instant instant = localDateTime.atZone(ZoneId.systemDefault()).toInstant();

        Date date = Date.from(instant);

        return new JsonPrimitive(date.getTime());

    }

}

then create Gson object using GsonBuilder with my custom LocalDateTimeSerializer

GsonBuilder gsonBuilder = new GsonBuilder();

gsonBuilder.registerTypeAdapter(LocalDateTime.class, new LocalDateTimeSerializer());



Gson gson = gsonBuilder.create();

Then in Java Script I create a Date object using this time stamp. It's working fine.

I need to know, is this way ok or is there a better way to do this?