我正在尝试启用二级缓存,但我得到了异常.
persistence.xml中的二级缓存代码如下:
<property name="hibernate.cache.use_second_level_cache" value="true"/>
<property name="hibernate.cache.use_query_cache" value="true"/>
<property name="hibernate.cache.region.factory_class" value="org.hibernate.cache.EhCache"/>
</properties>
Stacktrace例外是:
Exception in thread "main" java.lang.ExceptionInInitializerError
at com.org.JPAUtil.<clinit>(JPAUtil.java:21)
at com.org.Main.main(Main.java:23)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: java.lang.NoClassDefFoundError: net/sf/ehcache/CacheException
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2404)
at java.lang.Class.getConstructor0(Class.java:2714)
at java.lang.Class.getConstructor(Class.java:1674)
at org.hibernate.cfg.SettingsFactory.createRegionFactory(SettingsFactory.java:409)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:280)
at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2833)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2829)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1840)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:902)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:57)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:48)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:32)
at com.org.JPAUtil.<clinit>(JPAUtil.java:17)
... 6 more
Caused by: java.lang.ClassNotFoundException: net.sf.ehcache.CacheException
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method) …