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[英]TransactionRequiredException:Executing and Update/Delete query
[英]HIBERNATE : TransactionRequiredException: Executing an update/delete query after entityManager.createNativeQuery()
我正在使用Struts,Spring和Hibernate進行項目。 單擊按鈕后,Struts動作將引導我完成DS和DAO,在其中我嘗試調用本地查詢來更新數據庫。 這是錯誤跟蹤:
javax.persistence.TransactionRequiredException:執行更新/刪除查詢
在org.hibernate.ejb.QueryImpl.executeUpdate(QueryImpl.java:48)
在sun.reflect.NativeMethodAccessorImpl.invoke0(本機方法)處
在sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
在sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
在java.lang.reflect.Method.invoke(Method.java:618)
在org.springframework.orm.jpa.SharedEntityManagerCreator $ DeferredQueryInvocationHandler.invoke(SharedEntityManagerCreator.java:310)
在$ Proxy496.executeUpdate(未知來源)
在com.my.project.MyDAO.unsubscribe(MyDAO.java:307)
在com.my.project.MyDS.unsubscribe(MyDS.java:507)
在com.my.project.MyDS.updateValue(MyDS.java:784)
在com.my.project.MyAction.handleUpdate(MyAction.java:235)
MyDAO:
public class MyDAO extends
AbstractDAOGenericImpl<MyEntity> {
/** Entity Manager */
@PersistenceContext(unitName = "myPersistenceUnit")
private EntityManager entityManager;
@Transactional(readOnly = false, isolation = Isolation.DEFAULT, propagation = Propagation.REQUIRED, rollbackFor = {Exception.class})
public int unsubscribe(String entityId) throws JrafDaoException {
StringBuilder strQuery = new StringBuilder();
strQuery.append("update MYENTITY set SUBSCRIBE=:subscribe where ENTITY_ID=:entity_id");
final Query myQuery = getEntityManager().createNativeQuery(strQuery.toString(), MyEntity.class);
myQuery.setParameter("subscribe", "N");
myQuery.setParameter("entity_id", entityId);
try {
return myQuery.executeUpdate();
} catch (Exception e) {
e.printStackTrace();
}
return 0;
}
}
在MyDS中:
@Autowired
@Qualifier("MyDAO")
private MyDAO myDao;
@Transactional(readOnly = false, isolation = Isolation.DEFAULT, propagation = Propagation.REQUIRED, rollbackFor = {Exception.class})
public int unsubscribe(String entityId) throws JrafDomainException {
return myDao.unsubscribe(entityId);
}
MyAction:
public class MyAction extends DispatchAction {
private MyDS myDS;
// ...
private ActionForward handleUpdate(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
MyForm myForm = (MyForm) form;
myDS.unsubscribe(myForm.getEntityId());
}
}
和application-context-spring.xml:
<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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.5.xsd">
<!-- Enterprise layer's dependencies -->
<bean id="springLocator"
class="com.jraf.bootstrap.locator.SpringLocator">
</bean>
<!-- To precise the persistence configuration name file -->
<bean id="persistenceUnitManager"
class="org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager">
<property name="persistenceXmlLocations">
<list>
<value>/META-INF/persistence-web.xml</value>
</list>
</property>
</bean>
<!-- EntityManagerFactory definition : JPA one -->
<bean id="myEmf"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitManager"
ref="persistenceUnitManager" />
<property name="persistenceUnitName" value="myPersistenceUnit" />
</bean>
<!-- TransactionManager JPA one -->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="myEmf" />
</bean>
<!-- EntityManagerFactory definition : JPA one -->
<bean id="myEmf2" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitManager" ref="persistenceUnitManager" />
<property name="persistenceUnitName" value="myPersistenceUnit2" />
</bean>
<!-- Transaction Manager definition : JPA one-->
<bean id="myTxManager2" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="myEmf2" />
</bean>
<!-- Enable annotation usage for transaction -->
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="taskExecutor" class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor">
<property name="corePoolSize" value="1" />
<property name="maxPoolSize" value="1" />
<property name="queueCapacity" value="1" />
</bean>
<bean id="myDS" class="com.my.internal.MyDS">
<property name="myDao" ref="MyDAO"/>
</bean>
<!-- Enable the annotation usage (bean injection for instance) -->
<context:annotation-config />
</beans>
我正在處理一個現有項目,這就是為什么取消訂閱功能已經存在並且使用本機查詢而不是HQL的原因。 但是也許我應該改用它...?
謝謝你的幫助。
我也面臨類似的問題。 新增中
tx:annotation-driven transaction-manager="transactionManager"
彈簧上下文xml將解決此問題。
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