Question

我正在尝试在应用程序中使用Ehcache管理器。我想在没有xml配置的情况下进行设置。我还有下一个依赖项：

<dependency>
    <groupId>org.ehcache</groupId>
    <artifactId>ehcache</artifactId>
    <version>3.6.0</version>
</dependency>
<dependency>
    <groupId>javax.cache</groupId>
    <artifactId>cache-api</artifactId>
    <version>1.0.0</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context-support</artifactId>
    <version>5.1.1.RELEASE</version>
</dependency>

我有这样的CacheManager bean：

@Bean
public org.springframework.cache.CacheManager cacheManager() {
    org.ehcache.CacheManager mainPageCache = CacheManagerBuilder
            .newCacheManagerBuilder()
            .withCache("mainPageCache", CacheConfigurationBuilder
                    .newCacheConfigurationBuilder(
                            Pageable.class,
                            Collection.class,
                            ResourcePoolsBuilder.heap(10))
                    .withExpiry(ExpiryPolicyBuilder
                            .timeToLiveExpiration(Duration
                                    .of(10, ChronoUnit.SECONDS))))
            .build(true);
    // ...
}

是否可以将Ehcache CacheManager转换为Spring CacheManager？我认为应该是这样的：return new JCacheCacheManager(/*some code*/);

Answer 1

您不能简单地将ehcache CacheManager转换为spring CacheManager。

您可以使用npm test来获得org.ehcache.jsr107.EhcacheCachingProvider并将其提供给javax.cache.CacheManager，这是对org.springframework.cache.jcache.JCacheCacheManager的jcache（aka jsr107）的实现。

org.springframework.cache.CacheManager

如果您使用的是spring-boot，它将自动为您配置JCacheCacheManager。然后，您可以使用import java.util.HashMap; import java.util.Map; import javax.cache.CacheManager; import javax.cache.Caching; import org.ehcache.config.CacheConfiguration; import org.ehcache.config.ResourcePools; import org.ehcache.config.builders.CacheConfigurationBuilder; import org.ehcache.config.builders.ResourcePoolsBuilder; import org.ehcache.config.units.EntryUnit; import org.ehcache.config.units.MemoryUnit; import org.ehcache.core.config.DefaultConfiguration; import org.ehcache.jsr107.EhcacheCachingProvider; import org.springframework.cache.annotation.EnableCaching; import org.springframework.cache.jcache.JCacheCacheManager; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; @Configuration @EnableCaching public class CacheConfig { @Bean public JCacheCacheManager jCacheCacheManager() { JCacheCacheManager jCacheManager = new JCacheCacheManager(cacheManager()); return jCacheManager; } @Bean(destroyMethod = "close") public CacheManager cacheManager() { ResourcePools resourcePools = ResourcePoolsBuilder.newResourcePoolsBuilder() .heap(2000, EntryUnit.ENTRIES) .offheap(100, MemoryUnit.MB) .build(); CacheConfiguration<Object,Object> cacheConfiguration = CacheConfigurationBuilder.newCacheConfigurationBuilder( Object.class, Object.class, resourcePools). build(); Map<String, CacheConfiguration<?, ?>> caches = new HashMap<>(); caches.put("myCache", cacheConfiguration); EhcacheCachingProvider provider = (EhcacheCachingProvider) Caching.getCachingProvider("org.ehcache.jsr107.EhcacheCachingProvider"); org.ehcache.config.Configuration configuration = new DefaultConfiguration(caches, provider.getDefaultClassLoader()); return provider.getCacheManager(provider.getDefaultURI(), (org.ehcache.config.Configuration) configuration); } }来配置缓存。

在没有XML配置的情况下将Ehcache CacheManager（v 3.x）转换为Spring CacheManager

1 个答案: