CODEWITHSUNDEEP
javajacksongsondeserializationdate-format
Kuldeep
Kuldeep

Reputation: 191

Gson : deserialize time serialized by Jackson

Json string given by Jackson contains time as {"time":"19:31:00"}

I want to deserialize it using Gson to get the java.sql.Time object back.

What DateFormat should I set into gson?

Presently, I am using 

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

Upvotes: 1

Views: 1351

Answers (2)

Mohit
Mohit

Reputation: 1755

You can register a JSONDeserializer for java.sql.Time with Gson.

public static void main(String[] args) {
    Gson gson = new GsonBuilder().registerTypeAdapter(Time.class, new MyTimeJsonDeserializer()).create();
    MyTime time = gson.fromJson("{\"time\": \"19:31:00\"}", MyTime.class);
    System.out.println(time.getTime());
}

public static class MyTime{

    private Time time;

    public Time getTime() {
        return time;
    }

    public void setTime(Time time) {
        this.time = time;
    }
}

public static class MyTimeJsonDeserializer implements JsonDeserializer<Time>{

    @Override
    public Time deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
            throws JsonParseException {
        String time = json.getAsString();
        String[] parts = time.split(":");
        return new Time(Integer.parseInt(parts[0]), Integer.parseInt(parts[1]), Integer.parseInt(parts[2]));
    }

}

Upvotes: 2

omer727
omer727

Reputation: 7711

Try to first get the date as a string, and then convert it to date using new SimpleDateFormat("HH:mm:ss").parse(timeStr)

Upvotes: 0

Related Questions