Spring的事务上下文不会持久化数据

Are*_*iak 5 spring jpa transactional persist applicationcontext

我知道我的问题是一个普遍的问题,但是我在这里检查了很多问题,检查了Spring文档,但我真的不知道我在做什么错。我的问题:我有一个使用JPA的Spring WebFlow项目(实现:OpenJPA + MySQL数据库)。我使用Spring ORM将EntityManager(通过@PersistenceContext注释)注入到我的简单RegisterDAO中。我已经配置了GlassFishs(正在使用的)连接池以使用MySQL,并且一切正常-我可以使用我的数据库,但是当我保留某些东西时-没有任何反应(数据未保留到数据库)。我知道问题出在我使用的事务上下文中。我阅读了Spring Transaction Management的文档,并按照本文档中的配置步骤进行操作。这是我的applicationContext.xml:

<?xml version="1.0" encoding="windows-1250"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:jee="http://www.springframework.org/schema/jee"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
       http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd
       http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.0.xsd">

    <jee:jndi-lookup id="entityManagerFactory" jndi-name="myPersistenceUnit"/> 
    <bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor"/>

    <bean id="registerDaoImpl" class="umk.dumont.db.dao.RegisterDAO" />
    <bean id="registerModel" class="umk.dumont.models.RegisterFormModel">
        <property name="registerDAO" ref="registerDaoImpl" />
    </bean>


  <tx:advice id="txAdvice">
    <tx:attributes>
      <tx:method name="*" />
    </tx:attributes>
  </tx:advice> 

  <aop:config>
    <aop:pointcut id="registerModelOperation" expression="execution(* umk.dumont.models.RegisterFormModel.*(..))"/>
    <aop:advisor advice-ref="txAdvice" pointcut-ref="registerModelOperation"/>
  </aop:config>

  <bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager" />


</beans>
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如您所见,我正在将RegisterDAO注入我的RegisterFormModel中,其中包含我的业务逻辑,用于验证注册表单数据并最终将用户添加到数据库中。验证工作正常,当我尝试添加新用户时出现问题。这是代码:

package umk.dumont.models;

...

public class RegisterFormModel implements Serializable {
    private String login;
    private String password;
    private String email;
    @Autowired
    private RegisterDAO registerDAO = null;

...

public boolean addUser()
    {
        MyUser user = new MyUser();
        user.setLogin(login);
        user.setPassword(password);
        user.setEmail(email);
        return registerDAO.insertUserIntoDB(user) == 0 ? true : false;
    }

...
}
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注册DAO:

public class RegisterDAO implements RegisterDAOInterface, Serializable {
    private EntityManager em;

    @PersistenceContext
    public void setEm(EntityManager em)
    {
        this.em = em;
    }


...
public int insertUserIntoDB(MyUser user)
    {
        int result = -4;
        try {
            em.persist(user);
            result = 0;

        }
        catch(Exception ex)
        {
            ex.printStackTrace();
            result = -4;
        }
        finally {

            return result;
        }
    }
...
}
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我也尝试使用@Transactional批注。我像这样配置spring applicationContext.xml:

<?xml version="1.0" encoding="windows-1250"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:jee="http://www.springframework.org/schema/jee"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
       http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd
       http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.0.xsd">



    <jee:jndi-lookup id="entityManagerFactory" jndi-name="myPersistenceUnit"/> 
    <bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor"/>
    <bean id="registerDaoImpl" class="umk.dumont.db.dao.RegisterDAO" />
    <bean id="registerModel" class="umk.dumont.models.RegisterFormModel">
        <property name="registerDAO" ref="registerDaoImpl" />
    </bean>


  <tx:annotation-driven />
  <bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager" />


</beans>
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并使用@Transactional注释对我的addUser()方法进行注释,如下所示:

package umk.dumont.models;

...

public class RegisterFormModel implements Serializable {
    private String login;
    private String password;
    private String email;
    @Autowired
    private RegisterDAO registerDAO = null;

...
@Transactional
public boolean addUser()
    {
        MyUser user = new MyUser();
        user.setLogin(login);
        user.setPassword(password);
        user.setEmail(email);
        return registerDAO.insertUserIntoDB(user) == 0 ? true : false;
    }

...
}
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甚至通过以下注释对整个类进行注释:

package umk.dumont.models;

...
@Transactional    
public class RegisterFormModel implements Serializable {
    private String login;
    private String password;
    private String email;
    @Autowired
    private RegisterDAO registerDAO = null;

...
public boolean addUser()
    {
        MyUser user = new MyUser();
        user.setLogin(login);
        user.setPassword(password);
        user.setEmail(email);
        return registerDAO.insertUserIntoDB(user) == 0 ? true : false;
    }

...
}
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但在两种情况下,问题都是相同的-数据未存储在数据库中。我的AOP代理是否有任何问题,因为我是新手(就像整个Spring一样:))?

编辑:在我的persistence.xml中,我正在使用transaction-type="JTA“,所以我认为我应该<bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager" />在我的applicationContext.xml中使用-是吗?

Tom*_*icz 0

也许这会有所帮助:

在 JNDI 情况下,在此后处理器的“persistenceUnits”映射中指定相应的 JNDI 名称,通常与 Java EE 部署描述符中的匹配 persistence-unit-ref 条目一起。默认情况下,这些名称被视为资源引用(根据 Java EE 资源引用约定),位于“java:comp/env/”命名空间下。例如:

<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor">
    <property name="persistenceUnits">
        <map>
            <entry key="unit1" value="persistence/unit1"/>
            <entry key="unit2" value="persistence/unit2"/>
        </map>
    </property>
</bean>
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从:

http://static.springsource.org/spring/docs/3.0.x/api/org/springframework/orm/jpa/support/PersistenceAnnotationBeanPostProcessor.html