关于spring data redis repository @RedisHash注解的对象上有DateTime属性字段的问题

当你save保存的时候你会发现出现StackOverflow Exception,很明显出现了无限循环,可是仅仅是一个save操作,哪里来的无限循环呢?

最终发现就是DateTime导致的,因为将对象映射存为Hash会将对象上的每一个属性存为hashkey,而且属性要是基本类型,,看图就知道问题咋来的了,Datetime上的属性是无限嵌套的.

怎么解决?

 @WritingConverter

    public static class DateTimeToStringConvert implements Converter<DateTime, Map<String, String>> {

        @Override

        public Map<String, String> convert(DateTime source) {

            Map<String, String> data = new HashMap<>();

            data.put("value", source.toString());

            return data;

        }

    }

    @ReadingConverter

    public static class StringToDateTimeConvert implements Converter<Map<String, Object>, DateTime> {

        @Override

        public DateTime convert(Map<String, Object> source) {

            if (source.containsKey("value")) {

                String dateStr = new String((byte[]) source.get("value"));

                return DateTime.parse(dateStr);

            }

            return null;

        }

    }

需要自定义write与read的转换器,然后你需要将该注册器注入到spring data和spring data redis的convert中去

 @Configuration

    static class RedisConvertConfig{

        @Autowired

        public MappingRedisConverter mappingRedisConverter;

        @PostConstruct

        public void initialConverter() {

            ConversionService conversionService = mappingRedisConverter.getConversionService();

            mappingRedisConverter.setCustomConversions(customConversions());

            if (conversionService instanceof GenericConversionService) {

                ((GenericConversionService) conversionService).addConverter(new DateTimeStringConvert.DateTimeToStringConvert());

                ((GenericConversionService) conversionService).addConverter(new DateTimeStringConvert.StringToDateTimeConvert());

            }

        }

        public CustomConversions customConversions() {

            List<Converter<?, ?>> converterList = new ArrayList<>();

            converterList.add(new DateTimeStringConvert.DateTimeToStringConvert());

            converterList.add(new DateTimeStringConvert.StringToDateTimeConvert());

            return new CustomConversions(converterList);

        }

    }

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关于spring data redis repository @RedisHash注解的对象上有DateTime属性字段的问题

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