SpringMVC中LocalDate、LocalDateTime、LocalTime、Date的序列化与反序列化

这是在使用SpringMVC时经常会遇到的日期类型转换，直接上代码：

@Configuration
public class ConverterConfig {

    private Logger logger = LoggerFactory.getLogger(ConverterConfig.class);

    private String dateTimeFormat = "yyyy-MM-dd HH:mm:ss";

    private String localDateFormat = "yyyy-MM-dd";

    private String localTimeFormat = "HH:mm:ss";

    private TimeZone timeZone = TimeZone.getTimeZone("GMT+8");

    private Locale locale = Locale.CHINA;

    @Bean
    public Jackson2ObjectMapperBuilderCustomizer jackson2ObjectMapperBuilderCustomizer() {
        logger.info("日期与字符串互转：Locale:【{}】， TimeZone:【{}】， Date:【{}】， LocalDateTime:【{}】，LocalDate:【{}】，LocalTime:【{}】",
                locale, timeZone.getDisplayName(), dateTimeFormat, dateTimeFormat, localDateFormat, localTimeFormat);


        final DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(dateTimeFormat);
        final DateTimeFormatter localDateFormatter = DateTimeFormatter.ofPattern(localDateFormat);
        final DateTimeFormatter localTimeFormatter = DateTimeFormatter.ofPattern(localTimeFormat);
        final SimpleDateFormat simpleDateFormat = new SimpleDateFormat(dateTimeFormat);

        return builder -> {
            //地区、时区
            builder.featuresToDisable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
                    .locale(locale).timeZone(timeZone);
            // 序列化
            builder.serializerByType(LocalDateTime.class, new LocalDateTimeSerializer(dateTimeFormatter))
                    .serializerByType(LocalDate.class, new LocalDateSerializer(localDateFormatter))
                    .serializerByType(LocalTime.class, new LocalTimeSerializer(localTimeFormatter))
                    .serializerByType(Date.class, new DateSerializer(false, simpleDateFormat));
            // 反序列化
            builder.deserializerByType(LocalDateTime.class, new LocalDateTimeDeserializer(dateTimeFormatter))
                    .deserializerByType(LocalDate.class, new LocalDateDeserializer(localDateFormatter))
                    .deserializerByType(LocalTime.class, new LocalTimeDeserializer(localTimeFormatter))
                    .deserializerByType(Date.class,
                            new DateDeserializers.DateDeserializer(DateDeserializers.DateDeserializer.instance,
                                    simpleDateFormat, dateTimeFormat));
        };
    }

    /**
     * LocalDate转换器，用于转换RequestParam和PathVariable参数
     */
    @Bean
    public Converter<String, LocalDate> localDateConverter() {
        return new Converter<String, LocalDate>() {
            @Override
            public LocalDate convert(String source) {
                return LocalDate.parse(source, DateTimeFormatter.ofPattern(localDateFormat));
            }
        };
    }

    /**
     * LocalDateTime转换器，用于转换RequestParam和PathVariable参数
     */
    @Bean
    public Converter<String, LocalDateTime> localDateTimeConverter() {
        return new Converter<String, LocalDateTime>() {
            @Override
            public LocalDateTime convert(String source) {
                return LocalDateTime.parse(source, DateTimeFormatter.ofPattern(dateTimeFormat));
            }
        };
    }

    /**
     * LocalTime转换器，用于转换RequestParam和PathVariable参数
     */
    @Bean
    public Converter<String, LocalTime> localTimeConverter() {
        return new Converter<String, LocalTime>() {
            @Override
            public LocalTime convert(String source) {
                return LocalTime.parse(source, DateTimeFormatter.ofPattern(localTimeFormat));
            }
        };
    }

    /**
     * Date转换器，用于转换RequestParam和PathVariable参数
     */
    @Bean
    public Converter<String, Date> dateConverter() {
        return new Converter<String, Date>() {
            @Override
            public Date convert(String source) {
                final SimpleDateFormat simpleDateFormat = new SimpleDateFormat(dateTimeFormat);

                try {
                    return simpleDateFormat.parse(source);
                } catch (ParseException e) {
                    logger.error("Init Converter String to Date error!", e);
                    throw new RuntimeException(e);
                }
            }
        };
    }

}

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