在MERGE JPA之后更新ROLLEDBACK
[英]Update ROLLEDBACK after em.MERGE JPA
問題描述
大家好 。 當我嘗試合並我的實體時遇到問題。 我通過放置請求從其余服務中使用新字段“名稱”解析對象實體。 我嘗試將具有新“名稱”字段的實體合並到我的數據庫中，但是更新操作后出現了回滾，也許您知道為什么嗎？ 這是我的控制器
@RequestMapping(value = "/updDep", method = RequestMethod.PUT)
@ResponseBody
public String updDeps(@RequestBody Department department ) {
departmentService.addDepartment(department);
System.out.println("after merge; in controller");
return "Success";
}
和部門服務類使用addDepartment（）方法：
@Repository
public class DepartmentServiceImpl implements DepartmentService {
@PersistenceContext(unitName = "MyPersistenceUnit")
private EntityManager entityManager;
....
//getter/setter entityManager....
...
@Override
@Transactional
public void updDepartment(Department department) {
Department department1 = findById(department.getId());
department1.setName(department.getName());
/* NOT WORKS TOO, STILL ROOLBAKED!
Department managedDep = getEntityManager().merge(department);
managedDep.setName(department.getName());
*/
}
項目結構：
persistence.xml中
<persistence-unit name="MyPersistenceUnit" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
<property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/testbd"/>
<property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
<property name="hibernate.connection.username" value="root"/>
<property name="hibernate.connection.password" value="root"/>
<!--<property name="hibernate.hbm2ddl.import_files" value= "import.sql"/>-->
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.format_sql" value="true"/>
<property name="hibernate.hbm2ddl.auto" value="update"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>
</properties>
</persistence-unit>
</persistence>
彈簧配置
<mvc:annotation-driven />
<context:annotation-config />
<context:component-scan base-package="epam.rest" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/pages/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location">
<value>classpath:jdbc.properties</value>
</property>
</bean>
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="MyPersistenceUnit"/>
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="dataSource" ref="dataSource" />
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" />
</beans>
LOG4J日志：
11:55:42,672 TRACE DefaultFlushEntityEventListener:281 - Updating entity: [epam.rest.entity.Department#1]
11:55:42,681 DEBUG Collections:190 - Collection found: [epam.rest.entity.Department.worker#1], was: [epam.rest.entity.Department.worker#1] (initialized)
11:55:42,682 TRACE AbstractFlushingEventListener:242 - Processing unreferenced collections
11:55:42,682 TRACE AbstractFlushingEventListener:254 - Scheduling collection removes/(re)creates/updates
11:55:42,682 DEBUG AbstractFlushingEventListener:118 - Flushed: 0 insertions, 1 updates, 0 deletions to 4 objects
11:55:42,683 DEBUG AbstractFlushingEventListener:125 - Flushed: 0 (re)creations, 0 updates, 0 removals to 1 collections
11:55:42,683 DEBUG EntityPrinter:114 - Listing entities:
11:55:42,684 DEBUG EntityPrinter:121 - epam.rest.entity.Worker{id=2, department=epam.rest.entity.Department#1, salary=1200, fio=Kozlovich Andrei Vicktorovich}
11:55:42,684 DEBUG EntityPrinter:121 - epam.rest.entity.Worker{id=1, department=epam.rest.entity.Department#1, salary=1000, fio=Gabriel Alexei Nicolaevich}
11:55:42,684 DEBUG EntityPrinter:121 - epam.rest.entity.Worker{id=3, department=epam.rest.entity.Department#1, salary=1500, fio=Baym Alena Nicolaevna}
11:55:42,686 DEBUG EntityPrinter:121 - epam.rest.entity.Department{id=1, name=IT123, worker=[epam.rest.entity.Worker#2, epam.rest.entity.Worker#3, epam.rest.entity.Worker#1]}
11:55:42,687 TRACE AbstractFlushingEventListener:327 - Executing flush
11:55:42,697 TRACE AbstractEntityPersister:3166 - Updating entity: [epam.rest.entity.Department#1]
11:55:42,698 TRACE AbstractServiceRegistryImpl:146 - Initializing service [role=org.hibernate.engine.jdbc.batch.spi.BatchBuilder]
11:55:42,704 TRACE AbstractServiceRegistryImpl:146 - Initializing service [role=org.hibernate.service.jmx.spi.JmxService]
11:55:42,706 TRACE BatchBuilderImpl:68 - Building batch [size=1]
11:55:42,708 DEBUG SQL:104 -
update
departments
set
name=?
where
id=?
11:55:42,710 TRACE JdbcCoordinatorImpl:319 - Registering statement [com.mysql.jdbc.JDBC4PreparedStatement@646b0e6a: update departments set name=** NOT SPECIFIED ** where id=** NOT SPECIFIED **]
11:55:42,710 TRACE AbstractEntityPersister:2780 - Dehydrating entity: [epam.rest.entity.Department#1]
11:55:42,712 TRACE BasicBinder:84 - binding parameter [1] as [VARCHAR] - IT123
11:55:42,713 TRACE BasicBinder:84 - binding parameter [2] as [BIGINT] - 1
11:55:42,714 TRACE JdbcCoordinatorImpl:358 - Releasing statement [com.mysql.jdbc.JDBC4PreparedStatement@646b0e6a: update departments set name='IT123' where id=1]
11:55:42,715 TRACE JdbcCoordinatorImpl:476 - Closing prepared statement [com.mysql.jdbc.JDBC4PreparedStatement@646b0e6a: update departments set name='IT123' where id=1]
11:55:42,715 TRACE JdbcCoordinatorImpl:249 - Starting after statement execution processing [ON_CLOSE]
11:55:42,717 TRACE JdbcCoordinatorImpl:249 - Starting after statement execution processing [ON_CLOSE]
11:55:42,718 DEBUG AbstractTransactionImpl:203 - rolling back
11:55:42,786 DEBUG JdbcTransaction:164 - rolled JDBC Connection
11:55:42,787 DEBUG JdbcTransaction:126 - re-enabling autocommit
11:55:42,788 TRACE TransactionCoordinatorImpl:136 - after transaction completion
11:55:42,792 TRACE SessionImpl:624 - after transaction completion
11:55:42,794 TRACE SessionImpl:342 - Closing session
11:55:42,795 TRACE JdbcCoordinatorImpl:171 - Closing JDBC container [org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl@6583023d]
11:55:42,796 DEBUG JdbcCoordinatorImpl:173 - HHH000420: Closing un-released batch
11:55:42,797 TRACE LogicalConnectionImpl:164 - Closing logical connection
11:55:42,797 DEBUG LogicalConnectionImpl:232 - Releasing JDBC connection
11:55:42,798 TRACE DriverManagerConnectionProviderImpl:233 - Returning connection to pool, pool size: 1
11:55:42,799 DEBUG LogicalConnectionImpl:250 - Released JDBC connection
11:55:42,799 TRACE LogicalConnectionImpl:176 - Logical connection closed
工作人員實體
@Entity
@Table(name = "workers")
public class Worker {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Column(nullable = false)
private String fio;
@ManyToOne(cascade = {CascadeType.PERSIST, CascadeType.MERGE }, fetch = FetchType.EAGER)
private Department department;
@Column(nullable = false)
private Integer salary;
......
部門實體
@Entity
@Table(name ="departments")
public class Department implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Column(nullable = false)
private String name;
@OneToMany(cascade = {CascadeType.PERSIST, CascadeType.MERGE }, fetch = FetchType.EAGER, mappedBy = "department")
private Set<Worker> worker;
.......
告訴我我錯了什么？
更新1我更新了我的代碼1）刪除persistence.xml 2）刪除服務中的（unitName =“ MyPersistenceUnit”）：
@PersistenceContext
private EntityManager entityManager;
2）edit despatcher-servlet.xml：現在看起來像這樣：
<mvc:annotation-driven />
<context:component-scan base-package="epam.rest" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/pages/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location">
<value>classpath:jdbc.properties</value>
</property>
</bean>
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan" value="epam.rest.entity" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
</property>
<property name="jpaProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">create-drop</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
</props>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<bean id="persistenceExceptionTranslationPostProcessor"
class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" />
</beans>
但是當我嘗試更新時，我仍然得到相同的ROLLEDBACK
04:14:06,765 TRACE AbstractEntityPersister:3166 - Updating entity: [epam.rest.entity.Department#1]
04:14:06,766 TRACE AbstractServiceRegistryImpl:146 - Initializing service [role=org.hibernate.engine.jdbc.batch.spi.BatchBuilder]
04:14:06,772 TRACE AbstractServiceRegistryImpl:146 - Initializing service [role=org.hibernate.service.jmx.spi.JmxService]
04:14:06,774 TRACE BatchBuilderImpl:68 - Building batch [size=1]
04:14:06,776 DEBUG SQL:104 - update departments set name=? where id=?
04:14:06,777 TRACE JdbcCoordinatorImpl:319 - Registering statement [com.mysql.jdbc.JDBC4PreparedStatement@3918a7aa: update departments set name=** NOT SPECIFIED ** where id=** NOT SPECIFIED **]
04:14:06,778 TRACE AbstractEntityPersister:2780 - Dehydrating entity: [epam.rest.entity.Department#1]
04:14:06,779 TRACE BasicBinder:84 - binding parameter [1] as [VARCHAR] - IT21
04:14:06,780 TRACE BasicBinder:84 - binding parameter [2] as [BIGINT] - 1
04:14:06,782 TRACE JdbcCoordinatorImpl:358 - Releasing statement [com.mysql.jdbc.JDBC4PreparedStatement@3918a7aa: update departments set name='IT21' where id=1]
04:14:06,783 TRACE JdbcCoordinatorImpl:476 - Closing prepared statement [com.mysql.jdbc.JDBC4PreparedStatement@3918a7aa: update departments set name='IT21' where id=1]
04:14:06,783 TRACE JdbcCoordinatorImpl:249 - Starting after statement execution processing [ON_CLOSE]
04:14:06,785 TRACE JdbcCoordinatorImpl:249 - Starting after statement execution processing [ON_CLOSE]
04:14:06,785 DEBUG AbstractTransactionImpl:203 - rolling back
04:14:06,856 DEBUG JdbcTransaction:164 - rolled JDBC Connection
04:14:06,857 DEBUG JdbcTransaction:126 - re-enabling autocommit
04:14:06,858 TRACE TransactionCoordinatorImpl:136 - after transaction completion
04:14:06,862 TRACE SessionImpl:624 - after transaction completion
04:14:06,866 TRACE SessionImpl:342 - Closing session
04:14:06,867 TRACE JdbcCoordinatorImpl:171 - Closing JDBC container [org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl@71799400]
04:14:06,867 DEBUG JdbcCoordinatorImpl:173 - HHH000420: Closing un-released batch
04:14:06,868 TRACE LogicalConnectionImpl:164 - Closing logical connection
04:14:06,868 DEBUG LogicalConnectionImpl:232 - Releasing JDBC connection
04:14:06,868 DEBUG LogicalConnectionImpl:250 - Released JDBC connection
04:14:06,869 TRACE LogicalConnectionImpl:176 - Logical connection closed
現在怎么了？！ UPDATE2我查看了pom.xml文件：
....
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.1.8.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.1.8.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
</dependency>
.....
所以當我刪除ths時：
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
</dependency>
所有的作品！
1 個解決方案
解決方案1
1 已采納 2014-07-27 08:04:00
問題是您向Hibernate提供了兩個不同的jdbc連接信息：
- 通過Spring配置的DataSourcw
- 通過Hibernate jdbc連接屬性
因為您需要將Spring事務划分集成到Hibernate事務邏輯中，所以只能依賴提供給JPA TransactionManager的數據源。
這就是為什么您還會看到自動提交重新啟用日志的原因。
因此，刪除所有hibernate.connection。*行，您應該可以：
<property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/testbd"/>
<property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
<property name="hibernate.connection.username" value="root"/>
<property name="hibernate.connection.password" value="root"/>
刪除這些行后，Hibernate將不會使用其自己的內部JDBC連接提供程序覆蓋DataSource。
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