JetCache是阿里开源的基于java开发的缓存框架，支持多种缓存类型：本地缓存、分布式缓存、多级缓存。能够满足不同业务场景的缓存需求。

1.导入依赖

<!--jetcache缓存 -->
<dependency><groupId>com.alicp.jetcache</groupId><artifactId>jetcache-starter-redis</artifactId><version>2.6.0</version>
</dependency>

2.在application.yaml中添加jetcache配置

jetcache:statIntervalMinutes: 0areaInCacheName: falseremote:default:type: rediskeyConvertor: fastjsonvalueEncoder: javavalueDecoder: java # value 反序列化 目前支持 java和kryopoolConfig:minIdle: 5maxIdle: 20maxTotal: 50host: ${spring.redis.host}port: ${spring.redis.port}expireAfterWriteInMillis: 1800000

3.在启动类上添加注解

@EnableMethodCache(basePackages = "com.haha.admin",order = -9999)
@EnableCreateCacheAnnotation
public class AdminApplication {public static void main(String[] args) {SpringApplication.run(AdminApplication.class, args);}
}

4.在业务代码中使用

@Service
public class UserServiceImpl implements UserService {@Autowiredprivate UserRepository userRepository;@Cached(name = "userCache", key = "#userId", expire = 3600)@Overridepublic User getUserById(Long userId) {return userRepository.getUserById(userId);}@CacheUpdate(name = "userCache", key = "#user.id")@Overridepublic void updateUser(User user) {userRepository.update(user);}@CacheInvalidate(name = "userCache", key = "#userId")@Overridepublic void deleteUser(Long userId) {userRepository.deleteUser(userId);}