在Spring Cache中使用多个缓存实现 [英] Using multiple cache implementations with Spring Cache

问题描述

我正在使用Spring Boot应用程序，需要同时使用分布式(例如Hazelcast)和本地(例如Guava)缓存.有没有一种方法可以配置Spring Cache在使用@Cacheable时同时使用并根据缓存名称决定需要哪种实现?

I'm working on a Spring Boot app where I need to use both distributed (e.g. Hazelcast) and local (e.g. Guava) caches. Is there a way to configure Spring Cache to use both when using @Cacheable and decide which implementation is needed based on the cache name?

我尝试为HZ和Guava创建一个配置，以在其中定义缓存名称，但是Spring抱怨它找不到应该由HZ处理的缓存名称.当我只使用HZ或番石榴时，它们会起作用.

I tried with creating a configuration for both HZ and Guava defining the cache names inside, but Spring complains that it couldn't find the cache name that is supposed to handled by HZ. When I use exclusively HZ or Guava they work.

推荐答案

需要根据缓存名称实现哪种方式?

Which implementation is needed based on the cache name?

不是基于缓存名称，而是基于 CacheManager (可能)，将其中一个声明为Primary CacheManager，如下所示:

Not based on the cache name but yes based on CacheManager its possible, declare one of them as Primary CacheManager, as follows:

@Configuration
@EnableCaching
@PropertySource(value = { "classpath:/cache.properties" })
public class CacheConfig {

    @Bean
    @Primary
    public CacheManager hazelcastCacheManager() {
        ClientConfig config = new ClientConfig();
        HazelcastInstance client = HazelcastClient.newHazelcastClient(config);
        return new HazelcastCacheManager(client);
    }

    @Bean
    public CacheManager guavaCacheManager() {
         GuavaCacheManager cacheManager = new GuavaCacheManager("mycache");
           CacheBuilder<Object, Object> cacheBuilder = CacheBuilder.newBuilder()
           .maximumSize(100)
           .expireAfterWrite(10, TimeUnit.MINUTES);
           cacheManager.setCacheBuilder(cacheBuilder);
           return cacheManager;
    }

}

并在课程级别将其指定为:

@Service
@CacheConfig(cacheManager="hazelcastCacheManager")
public class EmployeeServiceImpl implements IEmployeeService {

}

或在方法级别上为:

@Service
public class EmployeeServiceImpl implements IEmployeeService {

    @Override
    @Cacheable(value = "EMPLOYEE_", key = "#id", cacheManager= "guavaCacheManager")
    public Employee getEmployee(int id) {
        return new Employee(id, "A");
    }

}

如果仅需保留缓存名称，则可以使用多个CacheManager.

If you have to stick on Cache name only then you can multiple CacheManager.

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