使用SpringBoot和Redis实现高效缓存机制方式

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

spring.redis.host=localhost
spring.redis.port=6379
spring.redis.password=

@Autowired
private RedisTemplate<String, String> redisTemplate;

public void setValue(String key, String value) {
    redisTemplate.opsForValue().set(key, value);
}

public String getValue(String key) {
    return redisTemplate.opsForValue().get(key);
}

@SpringBootApplication
@EnableCaching
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

@Service
public class UserService {

    @Cacheable(value = "users", key = "#id")
    public User getUserById(Long id) {
        // 模拟数据库查询
        return userRepository.findById(id).orElse(null);
    }
}

@Configuration
public class RedisConfig {

    @Bean
    public CacheManager cacheManager(RedisConnectionFactory factory) {
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()
                .entryTtl(Duration.ofMinutes(10)); // 设置缓存过期时间为10分钟

        return RedisCacheManager.builder(factory)
                .cacheDefaults(config)
                .build();
    }
}