springboot 全局時間格式化

方法一:配置

這種方式只對 Date 類型生效

spring:
  jackson:
    date-format: yyyy-MM-dd HH:mm:ss
    time-zone: GMT+8

 

方法二:@JsonFormat

部分格式化:@JsonFormat 注解需要用在實體類的時間字段上，對應的字段才能進行格式化。

@Getter
@Setter
public class TestTime {

    @JsonFormat(locale = "zh", timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")
    private Date date;

    private LocalDateTime localDateTime;

    @JsonFormat(locale = "zh", timezone = "GMT+8", pattern = "yyyyMMdd")
    private LocalDate localDate;

    @JsonFormat(locale = "zh", timezone = "GMT+8", pattern = "HHmmss")
    private LocalTime localTime;

}

 

方法三:@JsonComponent

使用 @JsonComponent 注解自定義一個全局格式化類，分別對 Date 和 LocalDate 類型做格式化處理。

@JsonComponent
public class JsonComponentConfig {

    @Value("${spring.jackson.date-format:yyyy-MM-dd HH:mm:ss}")
    private String pattern;

    /**
     * date 類型全局時間格式化
     */
    @Bean
    public Jackson2ObjectMapperBuilderCustomizer jackson2ObjectMapperBuilder() {
        return builder -> {
            TimeZone tz = TimeZone.getTimeZone("UTC");
            DateFormat df = new SimpleDateFormat(pattern);
            df.setTimeZone(tz);
            builder.failOnEmptyBeans(false)
                    .failOnUnknownProperties(false)
                    .featuresToDisable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
                    .dateFormat(df);
        };
    }

    /**
     * LocalDate 類型全局時間格式化
     */
    public LocalDateTimeSerializer localDateTimeDeserializer() {
        return new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(pattern));
    }

    @Bean
    public Jackson2ObjectMapperBuilderCustomizer jackson2ObjectMapperBuilderCustomizer() {
        return builder -> builder.serializerByType(LocalDateTime.class, localDateTimeDeserializer());
    }

}