Spring 4 + Hibernate 5 = org.springframework.orm.jpa.EntityManagerHolder 不能转换为 org.springframework.o
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【中文标题】Spring 4 + Hibernate 5 = org.springframework.orm.jpa.EntityManagerHolder 不能转换为 org.springframework.orm.hibernate5.SessionHolder【英文标题】：Spring 4 + Hibernate 5 = org.springframework.orm.jpa.EntityManagerHolder cannot be cast to org.springframework.orm.hibernate5.SessionHolder 【发布时间】：2016-12-02 07:43:32 【问题描述】：好的，我是一个完整的初学者，开始一个新的java项目并集成spring/hibernate等工具。事实上，这是我第一次这样做。所以我相信这个错误对你们来说是显而易见的。
猜测：
我期望的会话工厂不是spring注入的。 错误的依赖关系。错误
[2016-07-28 01:29:14.869] boot - 22234 ERROR [http-nio-8080-exec-1] --- [dispatcherServlet]: Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.ClassCastException: org.springframework.orm.jpa.EntityManagerHolder cannot be cast to org.springframework.orm.hibernate5.SessionHolder] with root cause
java.lang.ClassCastException: org.springframework.orm.jpa.EntityManagerHolder cannot be cast to org.springframework.orm.hibernate5.SessionHolder
at org.springframework.orm.hibernate5.HibernateTransactionManager.doGetTransaction(HibernateTransactionManager.java:376)
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.pse</groupId>
<artifactId>plataforma-ejercicios</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<java.version>1.8</java.version>
<org.springframework.version>4.3.1.RELEASE</org.springframework.version>
<spring-boot-starter.version>1.3.5.RELEASE</spring-boot-starter.version>
<org.hibernate.version>5.2.0.Final</org.hibernate.version>
<mysql-connector-java.version>5.1.38</mysql-connector-java.version>
<c3p0.version>0.9.1.2</c3p0.version>
</properties>
<dependencies>
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>$c3p0.version</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>$org.springframework.version</version>
</dependency>
<!-- Hibernate -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.2.1.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.1.3.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate.common</groupId>
<artifactId>hibernate-commons-annotations</artifactId>
<version>5.0.1.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.1.0.Final</version>
</dependency>
<!-- Maria -->
<dependency>
<groupId>org.mariadb.jdbc</groupId>
<artifactId>mariadb-java-client</artifactId>
<version>1.1.7</version>
</dependency>
<!-- Spring framework -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>$org.springframework.version</version>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
</dependency>
<!-- Spring boot -->
....
...
</dependencies>
</project>
base-context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.3.xsd">
<import resource="classpath:hibernate-context.xml" />
<context:property-placeholder location="classpath:hibernate.properties" />
<bean id="studentDAO" class="org.pse.plataformaejercicios.dao.StudentDAO">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
</beans>
hibernate-context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<bean id="c3p0DataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="$hibernate.connection.driver_class" />
<property name="jdbcUrl" value="$hibernate.connection.url" />
<property name="user" value="$hibernate.connection.username" />
<property name="password" value="$hibernate.connection.password" />
<property name="minPoolSize" value="$hibernate.connection.min_pool_size" />
<property name="maxPoolSize" value="$hibernate.connection.max_pool_size" />
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
<property name="dataSource" ref="c3p0DataSource" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
<property name="packagesToScan" value="org.pse.plataformaejercicios.model" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="transactionManager"
class="org.springframework.orm.hibernate5.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
</beans>
hibernate.properties
hibernate.dialect org.hibernate.dialect.MySQL5Dialect
hibernate.connection.driver_class org.mariadb.jdbc.Driver
hibernate.connection.url jdbc:mariadb://127.0.0.1:3306/pse
hibernate.connection.username pse
hibernate.connection.password passpse
hibernate.connection.min_pool_size 2
hibernate.connection.max_pool_size 10
hibernate.connection.autocommit true
hibernate.hbm2ddl.auto update
hibernate.show_sql true
StudentController.java
@RestController
public class StudentController
private Logger logger = LoggerFactory.getLogger(StudentController.class);
private StudentService studentService;
@RequestMapping(value = "/student/studentId/classes", method = RequestMethod.GET)
public ClassDTO getClassesForStudent()
return new ClassDTO();
@RequestMapping("/saveStudent/nombre/apellido")
public void saveStudent(@PathVariable String nombre, @PathVariable String apellido)
logger.info("Entrada al controller de: TestHibernate");
Student student = new Student();
student.setLastName(apellido);
student.setName(nombre);
studentService.save(student);
@Autowired
public void setStudentService(StudentService studentService)
this.studentService = studentService;
StudentServiceImpl.java
@Service
public class StudentServiceImpl implements StudentService
private StudentDAO studentDAO;
@Override
@Transactional(readOnly = false)
public void save(Student student)
studentDAO.save(student);
@Autowired
public void setStudentDAO(StudentDAO studentDAO)
this.studentDAO = studentDAO;
StudentDAO.java
public class StudentDAO
private SessionFactory sessionFactory;
public void save(Student student)
try
Session session = sessionFactory.getCurrentSession();
session.save(student);
catch (Exception e)
e.printStackTrace();
@Autowired
public void setSessionFactory(SessionFactory sessionFactory)
this.sessionFactory = sessionFactory;
【问题讨论】：
对于初学者停止混合休眠版本hibernate-core 和hibernate-entitymanager 应该有相同的版本，他们没有。
【参考方案1】：
你使用 Spring-Boot 吗？是这样的，就我而言，问题出在@EnableAutoConfiguration - 使用 exclude=HibernateJpaAutoConfiguration.class
【讨论】：
这就是问题所在！非常感谢！ =D 你知道为什么会导致这个问题吗？ 还没有 :( 但我要调查一下。 @Victor Krapivin 有效，非常感谢！你找到原因了吗？ 我删除了与Entity和Hibernate无关的服务函数上的@Transactional注解。我用它来调用远程服务api。这解决了问题。 代码为：@EnableAutoConfiguration(exclude = HibernateJpaAutoConfiguration.class )以上是关于Spring 4 + Hibernate 5 = org.springframework.orm.jpa.EntityManagerHolder 不能转换为 org.springframework.o的主要内容，如果未能解决你的问题，请参考以下文章
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