hibernate4 二级缓存demo实例.docx

hibernate4 二级缓存demo实例hibernate使用版本是：hibernate-release-4.2.5.Final需要的jar包：hibernate-release-4.2.5.Finallibrequired下所有jar包ehcache jar包：hibernate-release-4.2.5.Finalliboptionalehcache下所有包junit：junit-4.10.jar和mysql-connector-java-5.1.15-bin.jar注：hibernate 4.2.5版本ehcache缓存不依赖commons-logging-1.1.1.jar,需要的是slf4j-api-1.6.1.jar项目结构如下hibernate.cfg.xmlXml代码1. 2. 5. 6. 7. 8. com.mysql.jdbc.Driver9. jdbc:mysql:/:3306/hibernate410. root11. root12. 13. 114. 15. org.hibernate.dialect.MySQL5Dialect16. 17. thread18. 19. !-ernal.NoCacheProvider20. -21. 22. true23. org.hibernate.cache.ehcache.EhCacheRegionFactory24. 25. !-org.hibernate.cache.EhCacheProvider-26. 27. true28. 29. 30. true31. 32. update33. 34. 35. 注意：hibernate4和hibernate3配置不一样，hibernate4是Xml代码1. org.hibernate.cache.ehcache.EhCacheRegionFactory而hibernate3的配置是Xml代码1. org.hibernate.cache.EhCacheProvider此处有一个疑问是：hibernate4的官方文档中，已经把class改了，但是属性名称没有改，还是vider_class，不是上面的hibernate.cache.region.factory_class，但是写成vider_class会报下面错误Java代码1. org.hibernate.service.spi.ServiceException:Unabletocreaterequestedserviceorg.hibernate.engine.spi.CacheImplementor2. ernal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:186)3. ernal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:150)4. ernal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)5. ernal.SessionFactoryImpl.(SessionFactoryImpl.java:264)6. atorg.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1790)7. atcom.test.pojo.UserTest.beforeClass(UserTest.java:28)8. atsun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)9. atsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)10. atsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)11. atjava.lang.reflect.Method.invoke(Method.java:597)12. atorg.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)13. ernal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)14. atorg.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)15. ernal.runners.statements.RunBefores.evaluate(RunBefores.java:27)16. atorg.junit.runners.ParentRunner.run(ParentRunner.java:300)17. ernal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)18. ernal.junit.runner.TestExecution.run(TestExecution.java:38)19. ernal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)20. ernal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)21. ernal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)22. ernal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)23. Causedby:org.hibernate.cache.NoCacheRegionFactoryAvailableException:Second-levelcacheisusedintheapplication,butpropertyhibernate.cache.region.factory_classisnotgiven,pleaseeitherdisablesecondlevelcacheorsetcorrectregionfactoryclassnametopropertyhibernate.cache.region.factory_class(andmakesurethesecondlevelcacheprovider,hibernate-infinispan,forexample,isavailableintheclasspath).24. ernal.NoCachingRegionFactory.buildTimestampsRegion(NoCachingRegionFactory.java:87)25. atorg.hibernate.cache.spi.UpdateTimestampsCache.(UpdateTimestampsCache.java:62)26. ernal.CacheImpl.(CacheImpl.java:72)27. atorg.hibernate.engine.spi.CacheInitiator.initiateService(CacheInitiator.java:40)28. atorg.hibernate.engine.spi.CacheInitiator.initiateService(CacheInitiator.java:35)29. ernal.SessionFactoryServiceRegistryImpl.initiateService(SessionFactoryServiceRegistryImpl.java:91)30. ernal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:176)31. .20more说是hibernate.cache.region.factory_class属性没有配置，估计官方文档里没有把属性改过来。ehcache.xmlXml代码1. 2. 5. 18. 20. 23. User实体类Java代码1. packagecom.test.pojo;2. 3. importjavax.persistence.Entity;4. importjavax.persistence.GeneratedValue;5. importjavax.persistence.GenerationType;6. importjavax.persistence.Id;7. 8. importorg.hibernate.annotations.Cache;9. importorg.hibernate.annotations.CacheConcurrencyStrategy;10. 11. Entity12. Cache(usage=CacheConcurrencyStrategy.READ_WRITE)13. publicclassUser14. Id15. GeneratedValue(strategy=GenerationType.IDENTITY)16. privateintid;17. privateStringname;18. privateintage;19. publicintgetId()20. returnid;21. 22. publicvoidsetId(intid)23. this.id=id;24. 25. publicStringgetName()26. returnname;27. 28. publicvoidsetName(Stringname)29. =name;30. 31. publicintgetAge()32. returnage;33. 34. publicvoidsetAge(intage)35. this.age=age;36. 37. 38. UserTest测试类：Java代码1. packagecom.test.pojo;2. importorg.hibernate.HibernateException;3. importorg.hibernate.Session;4. importorg.hibernate.SessionFactory;5. importorg.hibernate.cfg.Configuration;6. importorg.hibernate.service.ServiceRegistry;7. importorg.hibernate.service.ServiceRegistryBuilder;8. importorg.junit.BeforeClass;9. importorg.junit.Test;10. 11. publicclassUserTest12. 13. privatestaticSessionFactorysessionFactory=null;14. BeforeClass15. publicstaticvoidbeforeClass()16. Configurationconfiguration=newConfiguration();17. 18. 19. try20. configuration.configure();21. catch(HibernateExceptione)22. /TODOAuto-generatedcatchblock23. e.printStackTrace();24. 25. 26. 27. ServiceRegistryserviceRegistry=newServiceRegistryBuilder().applySettings(configuration.getProperties().buildServiceRegistry();28. sessionFactory=configuration.buildSessionFactory(serviceRegistry);29. 30. Test31. publicvoidtestEhcache()32. Sessionsession=sessionFactory.openSession();33. session.beginTransaction();34. Useru1=(User)session.load(User.class,3);35. System.out.println(u1.getName();36. session.getTransaction().commit();37. session.close();38. Sessionsession2=sessionFactory.openSession();39. 40. session2.beginTransaction();41. Useru2=(User)session2.load(User.class,3);42. System.out.println(u2.getName();43. session2.getTransaction().commit();44. session2.close();45. 46. 结果：Java代码1. Hibernate:selectuser0_.idasid1_0_0_,user0_.ageasage2_0_0_,user0_.nameasname3_0_0_fromUseruser0_whereuser0_.id=?2. zhangsan3. zhangsanlist二级缓存测试Java代码1. packagecom.test.pojo;2. importjava.util.List;3. 4. importorg.hibernate.HibernateException;5. importorg.hibernate.Session;6. importorg.hibernate.SessionFactory;7. importorg.hibernate.cfg.Configuration;8. importorg.hibernate.service.ServiceRegistry;9. importorg.hibernate.service.ServiceRegistryBuilder;10. importorg.junit.BeforeClass;11. importorg.junit.Test;12. 13. publicclassUserTest14. 15. privatestaticSessionFactorysessionFactory=null;16. BeforeClass17. publicstaticvoidbeforeClass()18. Configurationconfiguration=newConfiguration();19. 20. 21. try22. configuration.configure();23. catch(HibernateExceptione)24. /TODOAuto-generatedcatchblock25. e.printStackTrace();26. 27. 28. 29. ServiceRegistryserviceRegistry=newServiceRegistryBuilder().applySettings(configuration.getProperties().buildServiceRegistry();30. sessionFactory=configuration.buildSessionFactory(serviceRegistry);31. 32. SuppressWarnings(unchecked)33. Test34.