无法使用Spring @Cacheable和@EnableCaching

Question

我想替换旧的:

@Component
public interface MyEntityRepository extends JpaRepository<MyEntity, Integer> {

    @QueryHints({@QueryHint(name = CACHEABLE, value = "true")})
    MyEntity findByName(String name);
}

这样:

@Component
public interface MyEntityRepository extends JpaRepository<MyEntity, Integer> {

    @Cacheable(value = "entities")
    MyEntity findByName(String name);
}

因为我想使用高级缓存功能,如不缓存空值等.

为此,我按照Spring教程https://spring.io/guides/gs/caching/

如果我不注释我的Application.java,缓存根本不起作用.

但是如果我添加@EnableCaching一个CacheManager bean:

package my.application.config;

@EnableWebMvc
@ComponentScan(basePackages = {"my.application"})
@Configuration
@EnableCaching
public class Application extends WebMvcConfigurerAdapter {

    @Bean
    public CacheManager cacheManager() {
        return new ConcurrentMapCacheManager("entities");
    }

// ...
}

我在启动时收到以下错误:

java.lang.IllegalStateException:未指定CacheResolver,并且未找到CacheManager类型的bean.注册CacheManager bean或从配置中删除@EnableCaching批注

如果我用CacheResolver bean替换My CacheManager bean,我会得到同样的错误:

@Bean
public CacheResolver cacheResolver() {
    return new SimpleCacheResolver(new ConcurrentMapCacheManager("entities"));
}

我错过了什么吗？

Answer 1

@herau你是对的我必须给这个豆命名!问题是有另一个bean"cacheManager",所以最后,我没有注释Application,并创建了一个配置:

@EnableCaching
@Configuration
public class CacheConf{
    @Bean(name = "springCM")
    public CacheManager cacheManager() {
        return new ConcurrentMapCacheManager("entities");
    }
}

在MyEntityRepository:

    @Cacheable(value = "entities", cacheManager = "springCM")
    MyEntity findByName(String name);