我想将 a 序列化为LocalDateTime
文本格式,同时只显示毫秒。我尝试了以下示例:
final ObjectMapper mapper = new ObjectMapper();
mapper.registerModule(new Jdk8Module());
mapper.registerModule(new JavaTimeModule());
mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
mapper.disable(SerializationFeature.WRITE_DATE_TIMESTAMPS_AS_NANOSECONDS);
final LocalDateTime t = LocalDateTime.of(2014, 3, 30, 12, 30, 23, 123456789);
System.out.println(mapper.writeValueAsString(t));
这输出:
"2014-03-30T12:30:23.123456789"
所以精度仍然以纳秒为单位,尽管没有按照mapper.disable(SerializationFeature.WRITE_DATE_TIMESTAMPS_AS_NANOSECONDS)
.
我期望:
"2014-03-30T12:30:23.123"
为什么是这样?我怎样才能解决这个问题?