@Transactional Spring没有创建新事务

Question

任何有关这方面的帮助将不胜感激。 我使用Spring，Jetty（Eclipse Jetty插件）。 似乎声明式事务管理@Transactional不起作用。

确认这不是以两种方式工作：1。在方法调用之后，新创建的实体不会刷新到数据库中。 2. TransactionSynchronizationManager.isActualTransactionActive（）; 返回false

请注意，下面的方法是@Controller类的一部分，其中http请求调用最终调用此save方法。 控制器类不实现任何接口。 实际代码：

 @Transactional(propagation = Propagation.REQUIRES_NEW)
  public void save(PERule peRule) {
     boolean inTransaction = TransactionSynchronizationManager.isActualTransactionActive();
            peRuleDAOImpl.persist(peRule);
     }

日志输出也确认了缺少事务：

DEBUG: org.hibernate.internal.SessionImpl - Opened session at timestamp: 13762325621
DEBUG: org.hibernate.engine.transaction.internal.TransactionCoordinatorImpl - Skipping
JTA sync registration due to auto join checking
DEBUG: org.hibernate.ejb.AbstractEntityManagerImpl - Looking for a JTA transaction to join
DEBUG: org.hibernate.ejb.AbstractEntityManagerImpl - Unable to join JTA transaction
DEBUG: org.hibernate.event.internal.AbstractSaveEventListener - Delaying identity-insert due to no transaction in progress

但是，当我以编程方式定义显式事务边界并提交事务时，实体将被刷新到数据库中。 例如：

@Resource
private PlatformTransactionManager txManager; 
private void save(PERule peRule) {
    DefaultTransactionDefinition def = new DefaultTransactionDefinition();
    TransactionStatus status = txManager.getTransaction(def);
    def.setName("SomeTxName");
    def.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);
    try {
        peRuleDAOImpl.persist(peRule);
    } catch (Exception ex) {
        txManager.rollback(status);
    }
    txManager.commit(status);
}

因此，这似乎不是我定义我的transactionManager的方式的问题，因为它可以注入如上定义的对象。

ContextConfig：root-context.xml

<aop:aspectj-autoproxy />  
<context:annotation-config />

 <context:component-scan
        base-package="org.springframework.samples.mvc, com.project.*" />


 <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="location">
              <value>/WEB-INF/spring/proddatabase.properties</value>
         </property>
</bean>
 <bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
        <property name="jndiName" value="jdbc/myds" />
</bean>

  <bean id="entityManagerFactory"
  class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
   <property name="dataSource" ref="dataSource" />
    <property name="persistenceUnitName" value="EconDatesDB" />
    <property name="persistenceXmlLocation" value="/WEB-INF/spring/jpa-prod-persistence.xml" />
    <property name="jpaVendorAdapter">
         <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
                    <property name="generateDdl" value="false" />
                    <property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect" />
        </bean>
   </property>
        <property name="jpaProperties">
              <props>
                    <prop key="hibernate.format_sql">false
                    </prop>
                    <prop key="hibernate.use_sql_comments">false
                    </prop>
                    <prop key="hibernate.generate_statistics">false
                    </prop>
                    <prop key="hibernate.transaction.factory_class">org.hibernate.engine.transaction.internal.jta.CMTTransactionFactory
                    </prop>
                    <!-- The following line is what's used in Hibernate 4 instead of a TransactionManagerLookup 
                          class -->
                    <prop key="hibernate.transaction.manager_lookup_class">com.atomikos.icatch.jta.hibernate3.TransactionManagerLookup
                    </prop>

              </props>
        </property>
  </bean>
  <tx:annotation-driven mode="aspectj"  proxy-target-class="true" transaction-manager="transactionManager"/>


  <bean id="transactionManager"
        class="org.springframework.transaction.jta.JtaTransactionManager">
        <property name="transactionManager" ref="atomikosTransactionManager" />
        <property name="userTransaction" ref="atomikosUserTransaction" />
  </bean>

  <bean id="atomikosUserTransaction" class="com.atomikos.icatch.jta.UserTransactionImp">
        <property name="transactionTimeout" value="300" />
  </bean>
  <!-- Construct Atomikos UserTransactionManager, needed to configure Spring -->
  <bean id="atomikosTransactionManager" class="com.atomikos.icatch.jta.UserTransactionManager"
        init-method="init" destroy-method="close">
        <!-- when close is called, should we force transactions to terminate or 
              not? -->
        <property name="forceShutdown" value="false" />
        <property name="transactionTimeout" value="300" />
  </bean>


  <mvc:annotation-driven />

  <beans:bean id="conversionService"
        class="org.springframework.format.support.FormattingConversionServiceFactoryBean">
        <beans:property name="formatters">
              <beans:bean
                    class="org.springframework.samples.mvc.convert.MaskFormatAnnotationFormatterFactory" />
        </beans:property>
  </beans:bean>

  <!-- Controllers.xml Only contains routes from path to view name, and has no other spring config
  <mvc:view-controller path="showcase/" view-name="/WEB-INF/views/home" /> -->
  <beans:import resource="/appServlet/controllers.xml" />  

的servlet上下文：

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

  <beans:bean id="viewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <beans:property name="order" value="1" />
        <!-- <beans:property name="prefix" value="/WEB-INF/views/" /> -->
        <beans:property name="prefix" value="" />
        <beans:property name="suffix" value=".jsp" />
  </beans:bean>

web.xml中：

      <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring/root-context.xml</param-value>
  </context-param>


  <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>


  <servlet>
        <servlet-name>appServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
              <param-name>contextConfigLocation</param-name>
              <param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
        <servlet-name>appServlet</servlet-name>
        <url-pattern>/</url-pattern>
  </servlet-mapping>

pom.xml相关依赖项：

<dependency>
              <groupId>cglib</groupId>
              <artifactId>cglib-nodep</artifactId>
              <version>2.2</version>
        </dependency>
        <dependency>
              <groupId>org.aspectj</groupId>
              <artifactId>aspectjweaver</artifactId>
              <version>1.6.10</version>
        </dependency>
        <dependency>
              <groupId>org.aspectj</groupId>
              <artifactId>aspectjrt</artifactId>
              <version>1.6.10</version>
        </dependency>

我还尝试在root-context.xml中跟踪tx：annotation-driven的变体：

<tx:annotation-driven mode="aspectj"  proxy-target-class="true" transaction-manager="transactionManager"/>
<tx:annotation-driven proxy-target-class="true" transaction-manager="transactionManager"/>
<tx:annotation-driven proxy-target-class="true" transaction-manager="transactionManager"/>
<tx:annotation-driven />

Answer 1

正如您所注意到的，声明式事务管理是基于AOP的。 这意味着Spring将事务bean包装到事务代理中，该代理负责启动和提交事务。 这意味着必须由代理拦截方法调用才能成为事务性的。

看起来你直接从同一个bean的另一个方法调用这个方法。 在这种情况下，它是一个直接调用，它不通过代理，因此无法启动事务：

HTTP request --> controller.someUnknownMethod() --> controller.save()

事务方法应该在一个单独的Spring bean（服务）中，由控制器调用。 这将使呼叫通过代理：

HTTP request --> controller.someUnknownMethod() --> transactional proxy --> service.save()

这在文档中有详细解释。