Redis与序列化反序列化

SpringBoot自带JSON

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
</dependency>

@Component
public class RedisUtil {

    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    private final ObjectMapper objectMapper = new ObjectMapper();

    /**
     * 设置键值对（对象序列化为JSON存储），并设置过期时间
     */
    public <T> void set(String key, T value, long timeout) {
        try {
            String json = objectMapper.writeValueAsString(value);
            stringRedisTemplate.opsForValue().set(key, json, timeout, TimeUnit.MINUTES);
        } catch (Exception e) {
            throw new RuntimeException("Redis set operation failed", e);
        }
    }

    /**
     * 获取值（JSON反序列化为对象）
     */
    public <T> T get(String key, TypeReference<T> typeReference) {
        try {
            String json = stringRedisTemplate.opsForValue().get(key);
            if (json == null) {
                return null;
            }
            return objectMapper.readValue(json, typeReference);
        } catch (Exception e) {
            throw new RuntimeException("Redis get operation failed", e);
        }
    }

    /**
     * 删除键
     */
    public void delete(String key) {
        stringRedisTemplate.delete(key);
    }
}