DurationSerializer.java 文件源码

@Override
public void serialize(
        final Duration duration,
        final JsonGenerator jgen,
        final SerializerProvider provider) throws IOException, JsonProcessingException
{
    if (duration == null)
    {
        jgen.writeNull();
        return;
    }

    final PeriodFormatter formatter = ISOPeriodFormat.standard();
    jgen.writeString(duration.toPeriod().toString(formatter));
}