application.getBean(FactoryBean)源码浅析

在配置ehcache的时候没搞懂以下配置到底什么情况,其中EhCacheManagerFactoryBean到底返回的到底是EhCacheManagerFactoryBean实例还是CacheManager实例，返回CacheManager实例的话又是org.springframework.cache.ehcache.EhCacheCacheManager还是net.sf.ehcache.Cach

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