/**
	 * 配置RedisTemplate存放缓存的格式
	 * @param factory
	 * @return
	 */

	private Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer() {
        Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer =
                new Jackson2JsonRedisSerializer<>(Object.class);
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        objectMapper.configure(MapperFeature.USE_ANNOTATIONS, false);
        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        objectMapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
        // 此项必须配置，否则会报java.lang.ClassCastException: java.util.LinkedHashMap cannot be cast to XXX
        objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY);
        objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
        return jackson2JsonRedisSerializer;
    }
	
	@Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) throws UnknownHostException {
        RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
        Jackson2JsonRedisSerializer<Object> jsonSerial = new Jackson2JsonRedisSerializer<Object>(Object.class);
//        //修复反序列化bug
//        ObjectMapper om = new ObjectMapper();
//        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
//        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
//        jsonSerial.setObjectMapper(om);
        template.setDefaultSerializer(jackson2JsonRedisSerializer());
        template.setKeySerializer(RedisSerializer.string());
        template.setConnectionFactory(redisConnectionFactory);
        template.afterPropertiesSet();
        return template;
    }
	
	 public class MyObjectMapper extends ObjectMapper {
	        private static final long serialVersionUID = 1L;
	 
	        public MyObjectMapper() {
	            super();
	            // 去掉各种@JsonSerialize注解的解析
	            this.configure(MapperFeature.USE_ANNOTATIONS, false);
	            // 只针对非空的值进行序列化
	            this.setSerializationInclusion(JsonInclude.Include.NON_NULL);
	            // 将类型序列化到属性json字符串中
	            this.enableDefaultTyping(DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY);
	            // 对于找不到匹配属性的时候忽略报错
	            this.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
	            // 不包含任何属性的bean也不报错
	            this.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
	        }
	    }

1、取出来的缓存格式是LinkHashMap格式， 无法转化成一个对象
2、我添加ObjectMapper修改其配置， 问题1消失， 但无法反序列化！
我搜寻网上众多答案仍未解决！希望我有生之年能解决！