Hibernate second level cache with Spring

[stevekuo]

I'm using Spring + JPA + Hibernate. I'm trying to enable Hibernate's second level cache. In my Spring's applicationContext.xml I have:

<prop key="hibernate.cache.provider_class">net.sf.ehcache.hibernate.SingletonEhCacheProvider</prop>
<prop key="hibernate.cache.provider_configuration_file_resource_path">/ehcache.xml</prop>

When I run I get the error:

Caused by: org.hibernate.HibernateException: Could not instantiate cache implementation
     at org.hibernate.cache.CacheFactory.createCache(CacheFactory.java:64)
Caused by: org.hibernate.cache.NoCachingEnabledException: Second-level cache is not enabled for usage [hibernate.cache.use_second_level_cache | hibernate.cache.use_query_cache]
     at org.hibernate.cache.NoCacheProvider.buildCache(NoCacheProvider.java:21)

So it's complain I don't have second level cache enabled. So I add to my applicationContext.xml to enable it:

<prop key="hibernate.cache.use_second_level_cache">true</prop>

But still no joy. I also tried adding this to my ehcache.xml:

<property name="hibernate.cache.use_second_level_cache">true</property>

But it still doesn't work.

My entity classes are annotated to use caching

@Cache(usage=CacheConcurrencyStrategy.READ_ONLY)

Changing the provider_class to org.hibernate.cache.EhCacheProvider doesn't help:

<prop key="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</prop>

So, how do I enable second level cache?

Thanks, Steve

[stevekuo]

Resolved: Since I'm using LocalEntityManagerFactoryBean it gets its settings from META-INF/persistence.xml. My settings in applicationContext.xml weren't even being read.