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我想我有同样的问题，因为很多人，但在大多数情况下没有解决。无论如何，我会尝试，希望你们能帮助我。春季4 Jpa休眠 - 无法注入EntityManager
当我尝试使用@persistenceContext注释注入实体管理器并始终为空时，问题出现在我的存储库中。
堆栈： 春4.2.5 春数据1.10.1 休眠5
这是我为Sprint的数据的XML：
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="persistenceUnitName" value="conquerPU"/>
<property name="persistenceXmlLocation" value="classpath:META-INF/persistence.xml" />
<property name="packagesToScan" value="com.conquer.module" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
</property>
<property name="jpaProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQL82Dialect</prop>
</props>
</property>
</bean>
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="org.postgresql.Driver" />
<property name="url" value="jdbc:postgresql://localhost:5432/conquer" />
<property name="username" value="app" />
<property name="password" value="10203040" />
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<tx:annotation-driven />
<bean id="persistenceExceptionTranslationPostProcessor" class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />
<jpa:repositories base-package="com.conquer.module" entity-manager-factory-ref="entityManagerFactory" transaction-manager-ref="transactionManager"/>
这是我的应用程序的context.xml
<context:annotation-config/>
<context:component-scan base-package="com">
<context:include-filter type="aspectj" expression="com.*" />
</context:component-scan>
<!-- a HTTP Session-scoped bean exposed as a proxy -->
<bean id="sessionData" class="com.conquer.common.SessionData" scope="session">
<aop:scoped-proxy/>
</bean>
<!--Hibernate persistence interceptor - Used for audit data-->
<bean id="hibernateInterceptor" class="com.conquer.module.security.interceptor.HibernateInterceptor"></bean>
<!--Application Context to be used anywhere-->
<bean id="applicationContextProvder" class="com.conquer.common.ApplicationContextProvider"/>
<!-- SpringMVC -->
<import resource="spring-mvc.xml"/>
<!-- SpringData -->
<import resource="spring-jpa.xml"/>
<!-- SpringSecurity -->
<import resource="spring-security.xml"/>
这是我的资料库
@Repository
@Transactional
public class BaseRepositoryImpl<T, ID extends Serializable> implements BaseRepository<T, ID> {
@PersistenceContext
public EntityManager em;
public RepositoryFactorySupport baseFactory;
public BaseRepository<T, ID> baseRepository;
public BaseRepositoryImpl() {
System.out.println("BASE REPOSITORY RUNNING...");
this.baseFactory = new JpaRepositoryFactory(em);
this.baseRepository = this.baseFactory.getRepository(BaseRepository.class);
}
// Implementations here ...
}
这是我的persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
<persistence-unit name="conquerPU" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQL82Dialect"/>
<property name = "hibernate.show_sql" value = "true" />
<property name="hibernate.hbm2ddl.auto" value="update"/>
<property name="hibernate.ejb.interceptor" value="com.conquer.module.security.interceptor.HibernateInterceptor"/>
</properties>
</persistence-unit>
</persistence>