spring boot日期全局配置

电玩女神 2022-12-30 07:38 164阅读 0赞

**问题：是否需要配置时区？不配置默认使用系统时间所在时区**

**只支持JDK8日期类型LocalDate,LocalTime,LocalDateTime**

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**示例**

标准用法：@DateTimeFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss")
    不建议使用： @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")

**配置**

注意：

*  FormattingConversionService 不支持DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss") 
 *  必须按标准规则DateTimeFormatter.ofPattern("yyyy-MM-ddTHH:mm:ss")
 *  @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss") 仍继续支持

@Configuration
    public class TimeConfig {
    
        @Bean
        public FormattingConversionService conversionService() {
            DefaultFormattingConversionService conversionService = new DefaultFormattingConversionService(true);
            // 确保@NumberFormat仍支持
            conversionService.addFormatterForFieldAnnotation(new NumberFormatAnnotationFormatterFactory());
            // @DateTimeFormat全局配置
            DateTimeFormatterRegistrar deserialization = new DateTimeFormatterRegistrar();
            //ISO_LOCAL_DATE 等于 DateTimeFormatter.ofPattern("yyyy-MM-dd")
            deserialization.setDateFormatter(DateTimeFormatter.ISO_LOCAL_DATE);
            //ISO_LOCAL_TIME 等于 DateTimeFormatter.ofPattern("HH:mm:ss")
            deserialization.setTimeFormatter(DateTimeFormatter.ISO_LOCAL_TIME);
            //ISO_LOCAL_DATE_TIME 等于 DateTimeFormatter.ofPattern("yyyy-MM-ddTHH:mm:ss")
            deserialization.setDateTimeFormatter(DateTimeFormatter.ISO_LOCAL_DATE_TIME);
            deserialization.registerFormatters(conversionService);
            return conversionService;
        }
    
        /**
         * JsonFormat全局配置
         *
         * @return Module
         */
        @Bean
        public Module timeModule() {
            JavaTimeModule javaTimeModule = new JavaTimeModule();
            javaTimeModule.addSerializer(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ISO_LOCAL_DATE));
            javaTimeModule.addSerializer(LocalTime.class, new LocalTimeSerializer(DateTimeFormatter.ISO_LOCAL_TIME));
            javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ISO_LOCAL_DATE_TIME));
            return javaTimeModule;
        }
    }

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