我如何反序列化Jackson的秒数时间戳？

我编写了一个自定义反序列化器，以秒为单位处理时间戳（Groovy语法）。

class UnixTimestampDeserializer extends JsonDeserializer<DateTime> {    Logger logger = LoggerFactory.getLogger(UnixTimestampDeserializer.class)    @Override    DateTime deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException, JsonProcessingException {        String timestamp = jp.getText().trim()        try { return new DateTime(Long.valueOf(timestamp + '000'))        } catch (NumberFormatException e) { logger.warn('Unable to deserialize timestamp: ' + timestamp, e) return null        }    }}

然后，我注释了POGO以将其用于时间戳记：

class TimestampThing {    @JsonDeserialize(using = UnixTimestampDeserializer.class)    DateTime timestamp    @JsonCreator    public TimestampThing(@JsonProperty('timestamp') DateTime timestamp) {        this.timestamp = timestamp    }}