Java Json Serialize/deserialize Converter

Java Json Serialize and Deserialize Converter.md

Serialize

@JsonSerialize

@JsonSerialize(converter = DoubleAmountConverter.class)
private Double grandTotal;

DoubleAmountConverter.java

public class DoubleAmountConverter extends StdConverter<Double, String> {
    DecimalFormat df = new DecimalFormat("#.00");

    @Override
    public String convert(Double value) {
        return df.format(value);
    }
}

DeSerializer

@JsonDeserialize

@JsonDeserialize(using = InstantTimeDeserializer.class)
private Instant createdAt;

InstantTimeDeserializer.java

public class InstantTimeDeserializer extends JsonDeserializer<Instant> {
    @Override
    public Instant deserialize(JsonParser arg0, DeserializationContext arg1) throws IOException {
        return Instant.parse(arg0.getText());
    }
}