带预定注释的Spring缓存逐出

Question

在下面的代码缓存中有效，但是强制收回无效，您可以接近我吗？我已阅读以下链接：Schedule Spring cache eviction?

@Component
@RequiredArgsConstructor
public class CacheInvalidator {

    @Scheduled(fixedRate = 1000L)
    public void evictCache() {
       clearCache();
    }

    @CacheEvict(value = "count", allEntries = true)
    public void clearCache() {
    }
}

@Component
@RequiredArgsConstructor
public class ARepositoryImpl implements ARepository {

    @Cacheable(value = "count")
    public Integer count() {
        return jdbcTemplate.queryForObject("...", Integer.class);
    }
}

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

在pom.xml中：

   <parent>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-parent</artifactId>
       <version>2.2.2.RELEASE</version>
       <relativePath/> <!-- lookup parent from repository -->
   </parent>

Answer 1

这不起作用，因为evictCache中的方法CacheInvalidator不是在Spring的代理上而是在原始对象上调用clearCache，尽管该方法用@CacheEvict(value = "count", allEntries = true)进行了注释，但该方法没有任何作用。

而不是：

@Component
@RequiredArgsConstructor
public class CacheInvalidator {

    @Scheduled(fixedRate = 1000L)
    public void evictCache() {
       clearCache();
    }

    @CacheEvict(value = "count", allEntries = true)
    public void clearCache() {
    }
}

尝试：

@Component
@RequiredArgsConstructor
public class CacheInvalidator {

    @Scheduled(fixedRate = 1000L)
    @CacheEvict(value = "count", allEntries = true)
    public void clearCache() {
    }

}