我已经为JMS设置了弹簧配置。事情正常,除了我似乎无法将其延伸到懒惰的负载(请注意以下代码中的默认液体内置)。如果我从下面的配置中评论JMScontainer(DMLC),则懒惰加载可根据预期工作。否则,它将实例化DMLC,从而创建队列和连接工厂。

我想念什么?

JMScontext.xml:

<?xml version="1.0" encoding="UTF-8"?>
<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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"
       default-lazy-init="true">

    <bean id="jndiTemplate" class="org.springframework.jndi.JndiTemplate">
        <property name="environment">
            <props>
                <prop key="java.naming.factory.initial">weblogic.jndi.WLInitialContextFactory</prop>
                <prop key="java.naming.provider.url">t3:localhost:7001</prop>
            </props>
        </property>
    </bean>

    <bean id="queue" class="org.springframework.jndi.JndiObjectFactoryBean"
          p:jndiTemplate-ref="jndiTemplate" p:jndiName="jms/queue"/>

    <bean id="connectionFactory" class="org.springframework.jndi.JndiObjectFactoryBean"
          p:jndiTemplate-ref="jndiTemplate" p:jndiName="jms/connectionfactory"/>

    <bean id="jmsDestinationResolver" class="org.springframework.jms.support.destination.JndiDestinationResolver"
        p:jndiTemplate-ref="jndiTemplate" p:cache="true" />

    <bean id="jmsContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer"
          p:autoStartup="false"
          p:destination-ref="queue"
          p:destinationResolver-ref="jmsDestinationResolver"
          p:connectionFactory-ref="connectionFactory"
          p:messageListener-ref="queueListener" />

    <bean id="queueListener" class="com.blah.QueueListener"/>


</beans>

和我用来驱动它的测试,dummytest.java:

package blah;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:jmsContext.xml")
public class DummyTest {

    @Test
    public void shouldDoSomething() {

    }

}

当jmscontainer发表评论时,上面的测试通过。否则,我明白了:

java.lang.IllegalStateException: Failed to load ApplicationContext
Caused by: org.springframework.beans.factory.BeanCreationException: 
Error creating bean with name 'jmsContainer' defined in class path resource [com/blah/config/jmsContext.xml]: 
Cannot resolve reference to bean 'connectionFactory' while setting bean property 'connectionFactory'; 
nested exception is org.springframework.beans.factory.BeanCreationException: 
Error creating bean with name 'connectionFactory' defined in class path resource [com/blah/config/jmsContext.xml]: 
Invocation of init method failed; nested exception is javax.naming.NameNotFoundException: 
Exception in lookup.: `jms/connectionfactory' could not be found. 
[Root exception is weblogic.corba.cos.naming.NamingContextAnyPackage.NotFound: IDL:weblogic/corba/cos/naming/NamingContextAny/NotFound:1.0]

“ ConnectionFactory” Bean被实例化为“ JMScontainer”的依赖性,并且失败。随着“ JMScontainer”的评论,“ ConnectionFactory”不会实例化。

JMS代码工作正常,但是我故意重命名了JNDI名称,因此我可以看到何时开始工作。

有帮助吗?

解决方案

好的,这很晦涩,但是 DefaultMessageListenerContainer 实现 Lifecycle 接口和实现此目标的bean与上下文自己的生命周期相关 - 当上下文启动时, Lifecycle- 启用豆是初始化的,并开始。这意味着您的懒惰配置本质上被忽略了。

其他提示

解决方案是使用autoStartup作为false。请参阅下面的代码。

<bean id="listenerContainer"
    class="org.springframework.jms.listener.DefaultMessageListenerContainer">
     ........
    <property name="autoStartup" value="false"/>
</bean>

〜Shyam

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