带有spring bean的MDB不会自带其他包中的bean

Question

我正在使用以下MDB连接到WMQ：

@MessageDriven(name = "EventListener", activationConfig = {
   @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"),
   @ActivationConfigProperty(propertyName = "destination", propertyValue = "ABC"),
   @ActivationConfigProperty(propertyName = "hostName", propertyValue = "ABC"),
   @ActivationConfigProperty(propertyName = "port", propertyValue = "ABC"),
   @ActivationConfigProperty(propertyName = "channel", propertyValue = "ABC"),
   @ActivationConfigProperty(propertyName = "queueManager", propertyValue = "ABC"),
   @ActivationConfigProperty(propertyName = "sslCipherSuite", propertyValue = "ABC"),
   @ActivationConfigProperty(propertyName = "transportType", propertyValue = "CLIENT") })
@ResourceAdapter(value = "wmq.jmsra.rar")
@TransactionManagement(value = TransactionManagementType.CONTAINER)
@TransactionAttribute(value = TransactionAttributeType.REQUIRED)
@Interceptors(SpringBeanAutowiringInterceptor.class)
public class EventListener implements MessageListener {}

下面的spring bean是自动连线的，作为上面MDB中使用的拦截器注释的一部分。event-app-config.xml：

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:jee="http://www.springframework.org/schema/jee"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/jee
    http://www.springframework.org/schema/jee/spring-jee.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop.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/util
    http://www.springframework.org/schema/util/spring-util-3.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="com.abc" />
    <context:annotation-config/>
    <import resource="classpath:core-app-config.xml" /> //This is another package

</beans>

下面是core-app-config.xml：

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:jee="http://www.springframework.org/schema/jee"
    xmlns:cache="http://www.springframework.org/schema/cache"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
    http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.0.xsd 
    http://www.springframework.org/schema/jee
    http://www.springframework.org/schema/jee/spring-jee-2.5.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
    http://www.springframework.org/schema/cache
    http://www.springframework.org/schema/cache/spring-cache.xsd">

    <import resource="classpath:database-config.xml" />
    <import resource="classpath:spring-jms-config.xml" />

</beans>

主xml BeanRefContext.xml：

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:jee="http://www.springframework.org/schema/jee"
    xsi:schemaLocation="http://www.springframework.org/schema/jee
    http://www.springframework.org/schema/jee/spring-jee.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">

     <context:annotation-config/>
     <context:spring-configured/>

     <bean id="beanRefFactory" class="org.springframework.context.support.ClassPathXmlApplicationContext">
         <constructor-arg value="classpath*:event-app-config.xml"  />
     </bean>              
</beans>

我正在从MDB包中的数据库&spring jms xmls中自动生成某些bean实例，但看起来这些xmls中的所有bean都没有创建。能不能请你明白什么是问题。MDB的自动功能是否仅限于同一包中的spring xml，而在父spring bean xml中进行的任何其他导入都没有创建？

示例:EventListener在com.abc.xyz包中。我是eventlistener类中来自com.abc.core包的类A的自动实例。类A是@service，它又具有自动连线依赖关系，例如类Bwhich在com.abc.packb中。因此，当创建类A的实例时，我得到一个异常，表示未找到类B定义。

Answer 1

要解决这个问题，您需要使用SpringBeanAutoWiringSupport。

因为MDB不是在spring上下文中创建的，所以必须使用SpringBeanAutowiringSupportProcessInjectionBasedOnCurrentContext(Object target)方法自动连接所需的bean，或者从SpringBeanAutowiringSupport继承MDB。