Java Date to UTC using gson

Question

I can\'t seem to get gson to convert a Date to UTC time in java.... Here is my code...

Gson gson = new GsonBuilder().setDateFormat(\"yyyy-MM-dd\'T\'HH:mm:ss.         


        

Answer 1

I adapted the marked solution and parametrized the DateFormat:

import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;

import java.lang.reflect.Type;
import java.text.DateFormat;
import java.text.ParseException;
import java.util.Date;

public class GsonDateFormatAdapter implements JsonSerializer, JsonDeserializer {

    private final DateFormat dateFormat;

    public GsonDateFormatAdapter(DateFormat dateFormat) {
        this.dateFormat = dateFormat;
    }

    @Override
    public synchronized JsonElement serialize(Date date, Type type, JsonSerializationContext jsonSerializationContext) {
        return new JsonPrimitive(dateFormat.format(date));
    }

    @Override
    public synchronized Date deserialize(JsonElement jsonElement, Type type,JsonDeserializationContext jsonDeserializationContext) {
        try {
            return dateFormat.parse(jsonElement.getAsString());
        } catch (ParseException e) {
            throw new JsonParseException(e);
        }
    }
}