Java Memcached with Spring用于多个数据源不工作

我有一个SpringBoot+SpringDataJPA应用程序，使用两个数据源。我使用LocalContainerEntityManagerFactoryBean配置了实体管理器，如下所示：

 @Bean
    @Primary
    public LocalContainerEntityManagerFactoryBean userEntityManager() {
        LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
        em.setDataSource(userDataSource());
        em.setPackagesToScan(new String[] { "uk.co.o2.smip.validator.dao.entity.user" });
        em.setSharedCacheMode(SharedCacheMode.ALL);
        HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();

        em.setJpaVendorAdapter(vendorAdapter);
        HashMap<String, Object> properties = new HashMap<String, Object>();
        properties.put("hibernate.hbm2ddl.auto", "validate");
        properties.put("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect");
        em.setJpaPropertyMap(properties);

我已经检查了类路径中是否有提到的类文件。不知道出了什么问题

例外情况

Caused by: org.hibernate.cache.NoCacheRegionFactoryAvailableException: Second-level cache is used in the application, but property hibernate.cache.region.factory_class is not given; please either disable second level cache or set correct region factory using the hibernate.cache.region.factory_class setting and make sure the second level cache provider (hibernate-infinispan, e.g.) is available on the classpath.
        at org.hibernate.cache.internal.NoCachingRegionFactory.buildEntityRegion(NoCachingRegionFactory.java:83)
        at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:364)
        at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1859)
        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:852)
        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:845)
        at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:398)
        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:844)
        at org.hibernate.jpa.HibernatePersistenceProvider.createContainerEntityManagerFactory(HibernatePersistenceProvider.java:152)
        at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:338)
        at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:318)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1633)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1570)
        ... 130 more

原因：org.hibernate.cache.NoCacheRegionFactoryAvailableException:应用程序中使用了二级缓存，但未提供hibernate.cache.region.factory_类属性；请使用hibernate.cache.region.factory_类设置禁用二级缓存或设置正确的区域工厂，并确保二级缓存提供程序（例如hibernate infinispan）在类路径上可用。
位于org.hibernate.cache.internal.nocachGregionFactory.buildEntityRegion（nocachGregionFactory.java:83）
位于org.hibernate.internal.SessionFactoryImpl.（SessionFactoryImpl.java:364）
位于org.hibernate.cfg.Configuration.buildSessionFactory（Configuration.java:1859）
位于org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform（EntityManagerFactoryBuilderImpl.java:852）
位于org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform（EntityManagerFactoryBuilderImpl.java:845）
位于org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl（ClassLoaderServiceImpl.java:398）
位于org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build（EntityManagerFactoryBuilderImpl.java:844）
位于org.hibernate.jpa.HibernatePersistenceProvider.createContainerEntityManager工厂（HibernatePersistenceProvider.java:152）
位于org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory（LocalContainerEntityManagerFactoryBean.java:338）
位于org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.AfterPropertieSet（AbstractEntityManagerFactoryBean.java:318）
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods（AbstractAutowireCapableBeanFactory.java:1633）
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1570）
... 130多

您是如何检查它是否在类路径上的？可能重复感谢您的回复。分解了war，当它打开lib文件夹中的依赖jar文件并检查所提到的类文件是否存在时。Memcached本身是否在类路径上？对不起。我不明白你的问题？我的意思是kr.pe.kwnnam.hibernate4memcached.Hibernate4MemcachedRegionFactory在类路径中。

Caused by: org.hibernate.cache.NoCacheRegionFactoryAvailableException: Second-level cache is used in the application, but property hibernate.cache.region.factory_class is not given; please either disable second level cache or set correct region factory using the hibernate.cache.region.factory_class setting and make sure the second level cache provider (hibernate-infinispan, e.g.) is available on the classpath.
        at org.hibernate.cache.internal.NoCachingRegionFactory.buildEntityRegion(NoCachingRegionFactory.java:83)
        at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:364)
        at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1859)
        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:852)
        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:845)
        at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:398)
        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:844)
        at org.hibernate.jpa.HibernatePersistenceProvider.createContainerEntityManagerFactory(HibernatePersistenceProvider.java:152)
        at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:338)
        at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:318)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1633)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1570)
        ... 130 more