Caused by: com.fasterxml.jackson.databind.exc.InvalidTypeIdException: Missing type id when trying to resolve subtype of [simple type, class java.lang.Object]: missing type id property '@class' at [Source: (byte[])"{"name":"测试","phone":"123","idCard":"12345","channelCode":"0"}"; line: 1, column: 66]

\### Original Code: ```

@Autowired
private RedisTemplate<string string=""> redisTemplate;
redisTemplate.opsForValue().set(token, JSONUtil.toJsonStr(currentUserInfo), tokenExpireTime, TimeUnit.SECONDS);
String userInfoRaw = redisTemplate.opsForValue().get(token);          
</string>

### Error Analysis: Redis stores objects with an additional @class property to identify the object type during deserialization. How ever, using JSONUtil.toJsonStr from Hutool to serialize objects removes the @class information. This results in a scenario where data can be stored but not properly retrieved from Redis. ### Solution: There are multiple approahces to resolve this issue: 1. Store the Object Directly: Allow Redis to handle the serialization process. 2. Use a Serializer That Preserves @class Information: Ensure the type information is included during serialization. 3. Retrieve Data as String or Map and Parse Manually: Handle the deserialization process separately. ### Modified Code: ```

@Autowired private RedisTemplate redisTemplate; redisTemplate.opsForValue().set(token, currentUserInfo, tokenExpireTime, TimeUnit.SECONDS); Object userInfoRaw = redisTemplate.opsForValue().get(token);

\### Additional Solution for **LocalDateTime** Deserialization Errors: To fix issues related to deserializing **LocalDateTime** fields, configure the RedisTemplate with a custom **ObjectMapper**: ```

@Configuration
public class RedisConfig {
    @Bean
    public RedisTemplate<string object=""> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<string object=""> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(redisConnectionFactory);
        
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.activateDefaultTyping(objectMapper.getPolymorphicTypeValidator(), 
                                         ObjectMapper.DefaultTyping.NON_FINAL, 
                                         JsonTypeInfo.As.PROPERTY);
        
        // Configure date/time serialization/deserialization
        JavaTimeModule timeModule = new JavaTimeModule();
        timeModule.addDeserializer(LocalDate.class,
                new LocalDateDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
        timeModule.addDeserializer(LocalDateTime.class,
                new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
        timeModule.addSerializer(LocalDate.class,
                new LocalDateSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
        timeModule.addSerializer(LocalDateTime.class,
                new LocalDateTimeSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
        
        objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
        objectMapper.registerModule(timeModule);
        
        // Configure key serializers
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
        redisTemplate.setKeySerializer(stringRedisSerializer);
        redisTemplate.setHashKeySerializer(stringRedisSerializer);
        
        // Configure value serializers
        GenericJackson2JsonRedisSerializer genericJackson2JsonRedisSerializer = 
            new GenericJackson2JsonRedisSerializer(objectMapper);
        redisTemplate.setValueSerializer(genericJackson2JsonRedisSerializer);
        redisTemplate.setHashValueSerializer(genericJackson2JsonRedisSerializer);
        
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }
}
</string></string>

This configuration ensures proper handling of object types and date/time formats when storing and retrieving data from Redis.