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发生异常错误信息（redis缓存处理序列化时）：

org.springframework.data.redis.serializer.SerializationException: Could not write JSON: No serializer found for class org.springframework.cache.interceptor.SimpleKey and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS); nested exception is com.fasterxml.jackson.databind.JsonMappingException: No serializer found for class org.springframework.cache.interceptor.SimpleKey and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS)

解决办法（定义一个ObjectMapper Bean,jackson2JsonRedisSerializer设置ObjectMapper为自己定义的Bean）：

@Beanpublic ObjectMapper objectMapper() {    return new ObjectMapper().disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);}/** * Integer redis template redis template. * * @param redisConnectionFactory the redis connection factory * @return the redis template */@Beanpublic RedisTemplate
   
     userStudentRedisTemplate(RedisConnectionFactory                                                                   redisConnectionFactory) {    RedisTemplate
    
      redisTemplate = new RedisTemplate<>();    Jackson2JsonRedisSerializer
     
       jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>            (UserStudentInfo.class);    jackson2JsonRedisSerializer.setObjectMapper(objectMapper());    redisTemplate.setConnectionFactory(redisConnectionFactory);    redisTemplate.setKeySerializer(jackson2JsonRedisSerializer);    redisTemplate.setHashKeySerializer(stringRedisSerializer);    redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);    redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);    redisTemplate.afterPropertiesSet();    return redisTemplate;}
     
    
   

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