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[英]hibernate 5 - Could not obtain transaction-synchronized Session for current thread;
[英]Could not retrieve pre-bound Hibernate session - Could not obtain transaction-synchronized Session for current thread
我正在創建一個帶有spring-mvc,spring-security,spring-core和hibernate的web應用程序。
但我總是從hibernate會話工廠得到這個非錯誤。
它實際上是在拋出HibernateException,但我在日志中看到它處於調試級別,我的應用程序實際上繼續執行它沒有問題。
但我很好奇理解提出異常的原因。
日志顯示以下行。
2016-08-29 13:34:55,310 DEBUG [sg.com.diamond.express.base.dao.impl.HibernateDAOImpl].[doExecute]([328]) [http-nio-8888-exec-4] - Could not retrieve pre-bound Hibernate session
org.hibernate.HibernateException: Could not obtain transaction-synchronized Session for current thread
at org.springframework.orm.hibernate4.SpringSessionContext.currentSession(SpringSessionContext.java:134)
at org.hibernate.internal.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:1014)
at org.springframework.orm.hibernate4.HibernateTemplate.doExecute(HibernateTemplate.java:325)
at org.springframework.orm.hibernate4.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:308)
at org.springframework.orm.hibernate4.HibernateTemplate.get(HibernateTemplate.java:418)
at org.springframework.orm.hibernate4.HibernateTemplate.get(HibernateTemplate.java:411)
at sg.com.diamond.express.base.dao.impl.BaseHibernateDaoImpl.findById(BaseHibernateDaoImpl.java:160)
at sg.com.diamond.express.webadmin.service.impl.ClientProfileServiceImpl.searchByName(ClientProfileServiceImpl.java:48)
at sg.com.diamond.express.webadmin.controller.impl.ClientController.home(ClientController.java:48)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springframework.web.servlet.mvc.multiaction.MultiActionController.invokeNamedMethod(MultiActionController.java:472)
at org.springframework.web.servlet.mvc.multiaction.MultiActionController.handleRequestInternal(MultiActionController.java:409)
at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:146)
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:50)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
這是我的代碼。
DAO等級
這是我創建的抽象級別,用於最小化DAO的樣板代碼數量,無需實現基本的crud。
BaseDAO接口
public interface BaseDAO <ID extends Serializable, M extends BaseModel> {
Session getCurrentSession();
M findById(ID id) throws DAOException;
List<M> findByCriteria(M criteria) throws DAOException;
List<M> listAll() throws DAOException;
ID saveObject(M object) throws DAOException;
void saveOrUpdate(M object) throws DAOException;
Query createQuery(String hql) throws DAOException;
Query createSQLQuery(String sql) throws DAOException;
Criteria createCriteria(Class clazz) throws DAOException;
List<M> runQuery(Query query) throws DAOException;
List<M> runQuery(String sql) throws DAOException;
}
BaseDAO實施
public class BaseHibernateDaoImpl<ID extends Serializable, M extends BaseModel> extends HibernateTemplate implements BaseDAO<ID, M> {
protected Class<M> modelClass;
@Override
public Session getCurrentSession() {
return this.getSessionFactory().getCurrentSession();
}
public ID saveObject(M object) throws DAOException {
try {
object.setCreator("Batch");
object.setCreatedAt(new Timestamp(new Date().getTime()));
object.setUpdater("Batch");
object.setUpdatedAt(new Timestamp(new Date().getTime()));
return (ID) super.save(object);
} catch (Exception e) {
logger.error(ExceptionUtil.getStackTraces(e), e);
throw new DAOException(e);
}
}
/** all other implementation methods **/
Spring XML配置
<!--|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| Data Source Configuration
|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
<bean id="targetDataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
<property name="url" value="jdbc:oracle:thin:@192.168.170.36:1521:EXPT2" />
<property name="username" value="EXP_USER" />
<property name="password" value="passw0rd" />
</bean>
<bean id="dataSource" class="org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy">
<property name="targetDataSource" ref="targetDataSource"/>
</bean>
<!--|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| Hibernate abstract session factory parent
|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
<bean id="baseSessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean" abstract="true">
<property name="hibernateProperties">
<props>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.jdbc.batch_size">10</prop>
</props>
</property>
</bean>
<!--|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| Hibernate entity configurations
|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
<bean id="expressSessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean" parent="baseSessionFactory">
<property name="hibernateProperties">
<props merge="true">
<prop key="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop>
</props>
</property>
<property name="dataSource" ref="dataSource"/>
<property name="mappingLocations" value="classpath*:hbm/express/*.hbm.xml"/>
</bean>
<!--|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| Transaction Management
|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
<bean id="txManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="expressSessionFactory"/>
</bean>
<aop:config>
<aop:pointcut id="servicePointcut" expression="execution(* sg.com.diamond.express.webadmin.service.*.*.*(..))"/>
<aop:advisor id="serviceTx" advice-ref="txAdvice" pointcut-ref="servicePointcut"/>
</aop:config>
<tx:advice id="txAdvice" transaction-manager="txManager">
<tx:attributes>
<tx:method name="get*" propagation="REQUIRES_NEW" isolation="READ_COMMITTED" read-only="true" />
<tx:method name="search*" propagation="REQUIRES_NEW" isolation="READ_COMMITTED" read-only="true" />
<tx:method name="list*" propagation="REQUIRES_NEW" isolation="READ_COMMITTED" read-only="true" />
<tx:method name="is*" propagation="REQUIRES_NEW" isolation="READ_COMMITTED" read-only="true" />
<tx:method name="*" propagation="REQUIRES_NEW" isolation="READ_COMMITTED" read-only="false"/>
</tx:attributes>
</tx:advice>
<!--|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| Base Dao Definitions
|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
<bean id="baseExpressDAO" class="sg.com.diamond.express.base.dao.impl.BaseHibernateDaoImpl" abstract="true">
<property name="sessionFactory" ref="expressSessionFactory"/>
</bean>
題
為什么會發生錯誤? 並且它不會破壞我的應用程序,日志級別是DEBUG,而不是ERROR,我的應用程序能夠在此之后正常繼續。
我的配置是否正確?
注意
不要介意full-xml配置,出於某種原因,我需要使用full-xml和none-annotations。
回答
在使用aop切入點表達式后,我注意到在我編寫的一個簡單的批處理程序中,我只有1個上下文,我沒有這個問題。
這引出了我的答案。
我最初將我的spring xml配置為多層。
假設它將在應用程序上下文中進行事務管理設置,我構建它。 類似“所有servlet上下文應該能夠以相同的方式使用相同的數據源和事務管理”
但事實證明,事實證明並非如此。
當我將事務管理部分(包括數據源配置)移動到servlet上下文配置中時,一切正常,現在服務在事務下正確包裝。
謝謝。
發生錯誤是因為您的aop事務配置不正確。 它不會覆蓋堆棧跟蹤中的服務類。 調整映射,直到您停止獲取堆棧跟蹤。 或者,如果可能,最好使用帶注釋的事務配置。 你的第二個問題的答案是在hibernate模板的來源:
try {
325 session = getSessionFactory().getCurrentSession();
326 }
327 catch (HibernateException ex) {
328 logger.debug("Could not retrieve pre-bound Hibernate session", ex);
329 }
330 if (session == null) {
331 session = getSessionFactory().openSession();
332 session.setFlushMode(FlushMode.MANUAL);
333 isNew = true;
334 }
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