Question

我有一个应用程序，我正在用Hibernate开发Spring。一切都很顺利但是当我尝试用hibernate类测试我的事务时，它抛出一个错误，说“org.hibernate.HibernateException：找不到当前线程的会话”。我无法找到错误。非常感谢帮助。

我的主要课程：

 public static void main(String[] args) {

        Patient sac = new Patient();
        sac.setPatient_Id("M2314");
        sac.setPatient_Age(23);
        sac.setPatient_Name("Sac");
        sac.setPatient_Address("SGTY NY");


        System.out.println("load context");
        ConfigurableApplicationContext context = new ClassPathXmlApplicationContext("file:src/main/webapp/WEB-INF/spring/appServlet/servlet-context.xml");

        PatientService patientService = (PatientService) context.getBean("patientService");
        patientService.persistPatient(sac);

        context.close();
    }

serviceImpl的一部分：

@Service("patientService")
public class PatientServiceImpl implements PatientService{

    @Autowired
    PatientDAO patientdao;

    @Override
    @Transactional
    public void persistPatient(Patient patient) {
        patientdao.persistPatient(patient);

    }

DAO课程的一部分：

@Repository("patientdao")
public class PatientDAOImpl implements PatientDAO{

    @Autowired
    private SessionFactory sessionFactory;


    @Override
    @Transactional
    public void persistPatient(Patient patient) {
        sessionFactory.getCurrentSession().persist(patient);

    }

我的servlet-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
            http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- DispatcherServlet Context: defines this servlet's request-processing 
        infrastructure -->

    <!-- Enables the Spring MVC @Controller programming model -->
    <annotation-driven />


    <resources mapping="/resources/**" location="/resources/" />

    <!-- Resolves views selected for rendering by @Controllers to .jsp resources 
        in the /WEB-INF/views directory -->
    <beans:bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <beans:property name="prefix" value="/WEB-INF/views/" />
        <beans:property name="suffix" value=".jsp" />
    </beans:bean>

    <context:component-scan base-package="com.tela.pms" />

   <beans:bean id="patientService" class="com.tela.pms.service.impl.PatientServiceImpl"/>
   <beans:bean id="patientdao" class="com.tela.pms.dao.impl.PatientDAOImpl"/>

    <beans:bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <beans:property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <beans:property name="url" value="jdbc:mysql://localhost:3306/test" />
        <beans:property name="username" value="root" />
        <beans:property name="password" value="root" />
    </beans:bean>

    <beans:bean id="sessionFactory"
        class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <beans:property name="dataSource" ref="dataSource"></beans:property>
        <beans:property name="annotatedClasses">
            <beans:list>
                <beans:value>com.tela.pms.domain.Patient</beans:value>
            </beans:list>
        </beans:property>
        <beans:property name="hibernateProperties">
            <beans:props>
                <beans:prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</beans:prop>
                <beans:prop key="hibernate.show_sql">true</beans:prop>
            </beans:props>
        </beans:property>
    </beans:bean>

    <beans:bean id="transactionManager"
        class="org.springframework.orm.hibernate4.HibernateTransactionManager"
        p:sessionFactory-ref="sessionFactory">
    </beans:bean>


</beans:beans>

Answer 1

在这种情况下，我不确定您是否启用了annotation-driven事务管理，因为您还没有提供SpringBean.xml文件的代码。

您需要在servlet-context.xml

中添加此标记<tx:annotation-driven/>标记

在那里还要确保将其指向您的事务管理器，如下所示

<tx:annotation-driven transaction-manager="transactionManager"/>

其余的代码看起来很好，这个错误应该随之改变。

Answer 2

你有@Transactional时间和地点，但不是如何。添加<tx:annotation-driven />以启用@Transactional的注释处理。

Answer 3

添加将是一个解决方案，但我得到另一个相关的。所以我必须在我的servlet-context.xml中进行此更改（部分内容在此处）：

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="
            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
            http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
            http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- DispatcherServlet Context: defines this servlet's request-processing 
        infrastructure -->

    <!-- Enables the Spring MVC @Controller programming model -->
    <annotation-driven />

    <tx:annotation-driven />

变更：

添加<tx:annotation-driven />.并注意已将http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd添加到xsi:schemaLocation声明中的beans:beans。然后它会正常工作。

Hibernate异常：找不到当前线程的会话

3 个答案: