我有一个使用MDB构建在WebLogic 11b(10.3.4)上的应用程序。我正在尝试将这些转换为Spring MDP。以下是有问题的MDB:
@MessageDriven(activationConfig = {
@ActivationConfigProperty(propertyName = "ejbName", propertyValue = "RecipientEventRouterBean"),
@ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Topic"),
@ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge"),
@ActivationConfigProperty(propertyName = "subscriptionDurability", propertyValue = "Durable") })
public class RecipientEventRouterBean extends TraxMessageRouter {
@Resource
private int appInstance;
@Resource
private String appName;
@Resource(mappedName = "jms/TraxErrorQ")
private Queue errorQueue;
@Resource(name = "TraxCF")
private ConnectionFactory errorQueueConnectionFactory;
@EJB
private Logger loggingService;
@Resource
private int maxJMSXDeliveryCount;
@Resource
private boolean validate;
@EJB
protected RecipientRegistrationService recService;
@Override
@PostConstruct
public void init() {
if (appName == null) {
throw new EJBException("appName is null");
}
try {
super.traxFactory = TraxFactory.getInstance(Application.fromValue(appName));
super.processor = new ObjectFactory().createApplicationInstance();
super.processor.setName(appName);
super.processor.setInstance(this.appInstance);
super.errorQueueConnectionFactory = this.errorQueueConnectionFactory;
super.errorQueue = this.errorQueue;
super.maxJMSXDeliveryCount = this.maxJMSXDeliveryCount;
super.validate = this.validate;
super.loggingService = this.loggingService;
} catch (Exception e) {
throw new EJBException(e);
}
super.init();
}
@Override
protected TraxMessageService getTraxMessageService() {
return recService;
}
}
MDB的父级TraxMessageRouter实现了MessageListener接口。
我在jms-applicationContext.xml中创建了MDP bean:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<!-- Spring JMS Destination Resolver -->
<bean id="jmsDestinationResolver" class="org.springframework.jms.support.destination.JndiDestinationResolver">
<property name="cache" value="true" />
</bean>
<!-- Spring JMS Queue Connection Factory leveraging a single connection -->
<!-- SingleConnectionFactory will return the same Connection on all createConnection calls and ignore calls to close -->
<bean id="connectionFactory" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value="jms/TraxCF" />
</bean>
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="connectionFactory" />
<property name="destinationResolver" ref="jmsDestinationResolver" />
</bean>
<bean id="jmsSender" class="com.mycompany.web.service.jms.JMSSender">
<property name="jmsTemplate" ref="jmsTemplate" />
</bean>
<bean id="jmsReceiver" class="com.mycompany.web.service.jms.JMSReceiver">
<property name="jmsTemplate" ref="jmsTemplate" />
</bean>
<bean id="jmsQueue" class="javax.jms.Topic" />
<!-- this is the Message Driven POJO (MDP) -->
<bean id="messageListener" class="com.mycompany.messaging.RecipientEventRouterBean" />
<!-- and this is the message listener container -->
<bean id="jmsContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="connectionFactory"/>
<property name="destination" ref="jmsQueue"/>
<property name="messageListener" ref="messageListener" />
</bean>
</beans>
如何将@MessageDriven注释转换为正确的Spring语法?我现在可以评论一下吗?
我还有几个EventRouterBeans。他们都在jms-ApplicationContext.xml中获取bean声明,还是可以将父TraxMessageRouter添加到xml?
需要对配置文件进行哪些其他更改?有关如何从MDB过渡到MDP的良好指南吗?有关如何从EJB 3过渡到Spring的良好指南吗?
答案 0 :(得分:1)
对我来说几乎没问题。以下是一些提示:
@MessageDriven
注释,因为您已经配置了容器jmsQueue
错了。当您使用weblogic时,您应该使用JNDI找到队列(就像您为连接工厂所做的那样),或者您应该使用destinationName
属性(接受{{1)来提供队列的(jndi)名称。而不是String
)每个要部署的消息侦听器需要一个声明。也许您应该使用xml命名空间路由来共享这些设置?
javax.jms.Destination
这将创建两个侦听器容器(即每个<jms:listener-container connectionFactory="connectionFactory"
destinationResolver="jmsDestinationResolver">
<jms:listener ... />
<jms:listener ... />
</jms:listener-container>
条目一个容器)。
另请注意,Spring 4.1将提供更好的声明性方法,您可以在其中注释任何Spring托管bean的方法。有关详细信息,请查看this blog post。 4.1.0.RC2已经发布,所以你现在可以尝试一下。