Hibernate事務塊問題

Question

這裏是我的相關DAO類

@Autowired 私人SessionFactory的SessionFactory的代碼;

public void getTabletbyNameAndSave(String []selectedMedicines) { 
    sessionFactory.getCurrentSession().beginTransaction(); 
    EPrescriber ePrescriber=new EPrescriber(); 
    List<SelectedTablets> selectedTabletsList=new ArrayList<SelectedTablets>(); 
    for (String item : selectedMedicines) { 

     Tablets tablets=null; 
     String hql="from Tablets t where t.category='"+item.trim()+"' "; 
     Query queryList = sessionFactory.getCurrentSession().createQuery(hql); 
     tablets=(Tablets)queryList.uniqueResult(); 

     SelectedTablets selectedTablets=new SelectedTablets(); 
     selectedTablets.setTablets(tablets); 
     selectedTablets.setePrescriberid(ePrescriber); 
     selectedTabletsList.add(selectedTablets); 
     sessionFactory.getCurrentSession().save(selectedTablets); 

    } 

    ePrescriber.setPatientName("Kasun"); 
    ePrescriber.setSelectedTablets(selectedTabletsList); 
    sessionFactory.getCurrentSession().save(ePrescriber); 
    sessionFactory.getCurrentSession().getTransaction().commit();  
} 

這是我的錯誤。看來我的事務塊沒有正確處理。請幫助在這個問題上給我建議。謝謝！

org.springframework.transaction.TransactionSystemException: Could not commit Hibernate transaction; nested exception is org.hibernate.TransactionException: Transaction not successfully started 
    at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:660) 
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:754) 
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:723) 
    at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:393) 
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:120) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) 
    at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:621) 
    at com.priyan.patients.EPrescriberDAO$$EnhancerByCGLIB$$3ce885f5.getTabletbyNameAndSave(<generated>) 
    at com.priyan.patients.ContactsControllers.setTabletsNames(ContactsControllers.java:328) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176) 
    at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426) 
    at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414) 
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644) 
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:643) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:723) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) 
    at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:879) 
    at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:617) 
    at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1760) 
    at java.lang.Thread.run(Unknown Source) 
Caused by: org.hibernate.TransactionException: Transaction not successfully started 
    at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:131) 
    at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:656) 
    ... 33 more 

Answer 1

我會嘗試手動分配交易到一個局部變量，以確保您正在運行在正確的交易最終提交。像下面這樣：

@Autowired private SessionFactory sessionFactory; 

public void getTabletbyNameAndSave(String []selectedMedicines) { 

    Session currentSession = sessionFactory.getCurrentSession(); 
    Transaction tx = currentSession.beginTransaction(); 

    EPrescriber ePrescriber=new EPrescriber(); 
    List<SelectedTablets> selectedTabletsList=new ArrayList<SelectedTablets>(); 
    for (String item : selectedMedicines) { 

     Tablets tablets=null; 
     String hql="from Tablets t where t.category='"+item.trim()+"' "; 
     Query queryList = currentSession.createQuery(hql); 
     tablets=(Tablets)queryList.uniqueResult(); 

     SelectedTablets selectedTablets=new SelectedTablets(); 
     selectedTablets.setTablets(tablets); 
     selectedTablets.setePrescriberid(ePrescriber); 
     selectedTabletsList.add(selectedTablets); 
     currentSession.save(selectedTablets); 

    } 

    ePrescriber.setPatientName("Kasun"); 
    ePrescriber.setSelectedTablets(selectedTabletsList); 
    currentSession.save(ePrescriber); 
    tx.commit();  
}