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Я пытаюсь интегрировать проект Spring JPA/Hibernate с JTA с использованием Atomikos.Ошибка Spring и JTA
Я разрабатываю небольшой пример, который вы можете найти in this repository
Вы можете увидеть все там (persistence.xml, applicationContext.xml и т.д.). Но я собираюсь показать фрагмент того, что файлы здесь:
persistence.xml:
<persistence-unit name="presistence-unit" transaction-type="JTA"> <!-- transaction-type="RESOURCE_LOCAL"> -->
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>jdbc/ct</jta-data-source>
<class>org.sergio.jtaSpringProject.entities.Transfer</class>
<class>org.sergio.jtaSpringProject.entities.Client</class>
<properties>
<property name="hibernate.hbm2ddl.auto" value="update" />
<property name="hibernate.show_sql" value="false" />
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5InnoDBDialect" />
<property name="hibernate.connection.autocommit" value="false" />
<property name="hibernate.transaction.factory_class" value="org.hibernate.engine.transaction.internal.jta.CMTTransactionFactory" />
<!-- <property name="hibernate.transaction.factory_class" value="com.atomikos.icatch.jta.hibernate3.AtomikosJTATransactionFactory" /> -->
<property name="hibernate.transaction.manager_lookup_class" value="com.atomikos.icatch.jta.hibernate3.TransactionManagerLookup" />
</properties>
</persistence-unit>
applicationContext.xml:
<!-- Create proxy instances of Repository interfaces -->
<jpa:repositories base-package="org.sergio.jtaSpringProject.repositories"/>
<tx:annotation-driven transaction-manager="transactionManager"/>
<bean id="dataSource" class="com.atomikos.jdbc.AtomikosDataSourceBean"
init-method="init" destroy-method="close">
<property name="uniqueResourceName">
<value>XADBMS</value>
</property>
<property name="xaDataSourceClassName">
<value>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</value>
</property>
<property name="xaProperties">
<props>
<prop key="URL">jdbc:mysql://localhost:3306/ct</prop>
<prop key="user">root</prop>
<prop key="password">root</prop>
</props>
</property>
<property name="maxPoolSize" value="3" />
<property name="minPoolSize" value="1" />
</bean>
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="showSql" value="true" />
<property name="generateDdl" value="true" />
<property name="database" value="MYSQL" />
</bean>
</property>
<property name="persistenceXmlLocation">
<value>persistence.xml</value>
</property>
<property name="persistenceUnitName" value="presistence-unit" />
</bean>
<bean id="atomikosTransactionManager" class="com.atomikos.icatch.jta.UserTransactionManager"
init-method="init" destroy-method="close">
<property name="forceShutdown" value="false" />
</bean>
<bean id="atomikosUserTransaction" class="com.atomikos.icatch.jta.UserTransactionImp">
<property name="transactionTimeout" value="300" />
</bean>
<bean id="transactionManager"
class="org.springframework.transaction.jta.JtaTransactionManager"
depends-on="atomikosTransactionManager,atomikosUserTransaction">
<property name="transactionManager" ref="atomikosTransactionManager" />
<property name="userTransaction" ref="atomikosUserTransaction" />
<property name="allowCustomIsolationLevels" value="true" />
</bean>
Когда я запускаю этот проект я получаю следующее сообщение об ошибке:
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'clientRepository': Invocation of init method failed; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:305)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:301)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:753)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:834)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:537)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
at org.sergio.jtaSpringProject.App.main(App.java:30)
Caused by: java.lang.NullPointerException
at org.hibernate.engine.transaction.internal.jta.JtaStatusHelper.getStatus(JtaStatusHelper.java:76)
at org.hibernate.engine.transaction.internal.jta.JtaStatusHelper.isActive(JtaStatusHelper.java:118)
at org.hibernate.engine.transaction.internal.jta.CMTTransaction.join(CMTTransaction.java:149)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.joinTransaction(AbstractEntityManagerImpl.java:1602)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.postInit(AbstractEntityManagerImpl.java:210)
at org.hibernate.jpa.internal.EntityManagerImpl.<init>(EntityManagerImpl.java:91)
at org.hibernate.jpa.internal.EntityManagerFactoryImpl.internalCreateEntityManager(EntityManagerFactoryImpl.java:345)
at org.hibernate.jpa.internal.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:313)
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:606)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.invokeProxyMethod(AbstractEntityManagerFactoryBean.java:388)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean$ManagedEntityManagerFactoryInvocationHandler.invoke(AbstractEntityManagerFactoryBean.java:541)
at com.sun.proxy.$Proxy17.createEntityManager(Unknown Source)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:287)
at com.sun.proxy.$Proxy25.getDelegate(Unknown Source)
at org.springframework.data.jpa.provider.JpaClassUtils.isEntityManagerOfType(JpaClassUtils.java:46)
at org.springframework.data.jpa.provider.PersistenceProvider.fromEntityManager(PersistenceProvider.java:296)
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.<init>(JpaRepositoryFactory.java:57)
at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.createRepositoryFactory(JpaRepositoryFactoryBean.java:79)
at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.doCreateRepositoryFactory(JpaRepositoryFactoryBean.java:69)
at org.springframework.data.repository.core.support.TransactionalRepositoryFactoryBeanSupport.createRepositoryFactory(TransactionalRepositoryFactoryBeanSupport.java:72)
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:216)
at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:92)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574)
... 12 more
Почему Spring не может создать экземпляр обоих репозиториев?
Является ли ваш URL также 'jdbc: mysql: // localhost: 3306/ct'? – Szarpul
Да, не правда ли. Приложение правильно создает таблицы в БД. Проблема заключается в том, что Spring не может создавать экземпляры обоих репозиториев. –
И вы настроили источник данных с именем JNDI: 'jdbc/ct' на вашем сервере? – Szarpul