如何为Spring Cache设置自定义KeyGenerator？ [英] How can I set a custom KeyGenerator for Spring Cache?

问题描述

我正在使用Spring 3.1，我想使用新的缓存功能。然后，我尝试了：

I'm using Spring 3.1 and I want to use the new cache features. Then, I tried:

<cache:annotation-driven />

<bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager"
    p:cache-manager-ref="ehcache" />

<!-- Ehcache library setup -->
<bean id="ehcache"
    class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean"
    p:config-location="classpath:ehcache.xml" />

但我找不到配置自定义KeyGenerator的方法。有什么想法？

But I didn't find the way to configure my custom KeyGenerator. Any idea?

推荐答案

好的，我找到了办法做到这一点......

Ok, I just find a way to do this...

<!-- <cache:annotation-driven /> -->

<bean id="annotationCacheOperationSource"
    class="org.springframework.cache.annotation.AnnotationCacheOperationSource" />

<bean id="cacheInterceptor" class="org.springframework.cache.interceptor.CacheInterceptor"
    p:cacheDefinitionSources-ref="annotationCacheOperationSource"
    p:cacheManager-ref="cacheManager" p:keyGenerator-ref="keyGenerator" />

<bean id="beanFactoryCacheOperationSourceAdvisor"
    class="org.springframework.cache.interceptor.BeanFactoryCacheOperationSourceAdvisor"
    p:adviceBeanName="cacheInterceptor" p:cacheDefinitionSource-ref="annotationCacheOperationSource" />

<bean id="keyGenerator"
    class="my.company.cache.ReflectionBasedKeyGenerator" />

如您所见，我使用AnnotationDrivenCacheBeanDefinitionParser，我将配置放在我的xml中，它可以工作:)完成！

As you can see, I use the AnnotationDrivenCacheBeanDefinitionParser, I put the configuration in my xml, and it works :) Done!

编辑：

对于Spring> 3.2，您可以使用简单的Java类配置实现CachingConfigurer：

For Spring > 3.2, you can use a simple Java class configuration implementing CachingConfigurer:

@EnableCaching(mode = AdviceMode.ASPECTJ)
public class CacheConfig implements CachingConfigurer {

    public KeyGenerator keyGenerator() {
        return new ReflectionBasedKeyGenerator();
    }

    public CacheManager cacheManager() {
        return new RedisCacheManager(redisCacheTemplate);
    }
}

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