import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer; //导入依赖的package包/类
/**
 * Example how skip auto-configuration and use a custom ObjectMapper.
 * Also can use a Jackson2ObjectMapperBuilder bean for the same purpose.
 */
//@Bean
ObjectMapper customObjectMapperForSpring() {
	ObjectMapper mapper = new ObjectMapper();
	JavaTimeModule javaTimeModule = new JavaTimeModule();
	javaTimeModule.addSerializer(new LocalDateTimeSerializer(DateTimeFormatter.ofPattern("YYYY-MMM")));
	mapper.registerModule(javaTimeModule);
	mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
	mapper.setDateFormat(new SimpleDateFormat("YYYY"));
	return mapper;
}
 

import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer; //导入依赖的package包/类
public JavaTimeModule()
{
    super(PackageVersion.VERSION);

    // First deserializers

    // // Instant variants:
    addDeserializer(Instant.class, InstantDeserializer.INSTANT);
    addDeserializer(OffsetDateTime.class, InstantDeserializer.OFFSET_DATE_TIME);
    addDeserializer(ZonedDateTime.class, InstantDeserializer.ZONED_DATE_TIME);

    // // Other deserializers
    addDeserializer(Duration.class, DurationDeserializer.INSTANCE);
    addDeserializer(LocalDateTime.class, LocalDateTimeDeserializer.INSTANCE);
    addDeserializer(LocalDate.class, LocalDateDeserializer.INSTANCE);
    addDeserializer(LocalTime.class, LocalTimeDeserializer.INSTANCE);
    addDeserializer(MonthDay.class, MonthDayDeserializer.INSTANCE);
    addDeserializer(OffsetTime.class, OffsetTimeDeserializer.INSTANCE);
    addDeserializer(Period.class, JSR310StringParsableDeserializer.PERIOD);
    addDeserializer(Year.class, YearDeserializer.INSTANCE);
    addDeserializer(YearMonth.class, YearMonthDeserializer.INSTANCE);
    addDeserializer(ZoneId.class, JSR310StringParsableDeserializer.ZONE_ID);
    addDeserializer(ZoneOffset.class, JSR310StringParsableDeserializer.ZONE_OFFSET);

    
    // then serializers:
    addSerializer(Duration.class, DurationSerializer.INSTANCE);
    addSerializer(Instant.class, InstantSerializer.INSTANCE);
    addSerializer(LocalDateTime.class, LocalDateTimeSerializer.INSTANCE);
    addSerializer(LocalDate.class, LocalDateSerializer.INSTANCE);
    addSerializer(LocalTime.class, LocalTimeSerializer.INSTANCE);
    addSerializer(MonthDay.class, MonthDaySerializer.INSTANCE);
    addSerializer(OffsetDateTime.class, OffsetDateTimeSerializer.INSTANCE);
    addSerializer(OffsetTime.class, OffsetTimeSerializer.INSTANCE);
    addSerializer(Period.class, new ToStringSerializer(Period.class));
    addSerializer(Year.class, YearSerializer.INSTANCE);
    addSerializer(YearMonth.class, YearMonthSerializer.INSTANCE);

    /* 27-Jun-2015, tatu: This is the real difference from the old
     *  {@link JSR310Module}: default is to produce ISO-8601 compatible
     *  serialization with timezone offset only, not timezone id.
     *  But this is configurable.
     */
    addSerializer(ZonedDateTime.class, ZonedDateTimeSerializer.INSTANCE);
    
    // note: actual concrete type is `ZoneRegion`, but that's not visible:
    addSerializer(ZoneId.class, new ToStringSerializer(ZoneId.class));

    addSerializer(ZoneOffset.class, new ToStringSerializer(ZoneOffset.class));

    // key serializers
    addKeySerializer(ZonedDateTime.class, ZonedDateTimeKeySerializer.INSTANCE);

    // key deserializers
    addKeyDeserializer(Duration.class, DurationKeyDeserializer.INSTANCE);
    addKeyDeserializer(Instant.class, InstantKeyDeserializer.INSTANCE);
    addKeyDeserializer(LocalDateTime.class, LocalDateTimeKeyDeserializer.INSTANCE);
    addKeyDeserializer(LocalDate.class, LocalDateKeyDeserializer.INSTANCE);
    addKeyDeserializer(LocalTime.class, LocalTimeKeyDeserializer.INSTANCE);
    addKeyDeserializer(MonthDay.class, MonthDayKeyDeserializer.INSTANCE);
    addKeyDeserializer(OffsetDateTime.class, OffsetDateTimeKeyDeserializer.INSTANCE);
    addKeyDeserializer(OffsetTime.class, OffsetTimeKeyDeserializer.INSTANCE);
    addKeyDeserializer(Period.class, PeriodKeyDeserializer.INSTANCE);
    addKeyDeserializer(Year.class, YearKeyDeserializer.INSTANCE);
    addKeyDeserializer(YearMonth.class, YearMothKeyDeserializer.INSTANCE);
    addKeyDeserializer(ZonedDateTime.class, ZonedDateTimeKeyDeserializer.INSTANCE);
    addKeyDeserializer(ZoneId.class, ZoneIdKeyDeserializer.INSTANCE);
    addKeyDeserializer(ZoneOffset.class, ZoneOffsetKeyDeserializer.INSTANCE);
}
 

import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer; //导入依赖的package包/类
private String serializeWith(LocalDateTime dateTime, DateTimeFormatter f) throws Exception {
    ObjectMapper mapper = new ObjectMapper().registerModule(new SimpleModule().addSerializer(new LocalDateTimeSerializer(f)));
    return mapper.writeValueAsString(dateTime);
}