Websphere MQ上的JMS和退出队列

Question

我在Weblogic服务器上有MQ作为外部JMS服务器。问题是，我需要回滚消息并重试，直到达到回退阈值。然后我需要将消息移动到回退队列。

@MessageDriven( name="MQListener", mappedName = "jms.mq.SOME.QUEUE.NAME",
        activationConfig = 
        { 
            @ActivationConfigProperty(propertyName = "destinationType",propertyValue = "javax.jms.Queue"),
            @ActivationConfigProperty(propertyName = "destination", propertyValue = "jms.mq.SOME.QUEUE.NAME"),
            @ActivationConfigProperty(propertyName = "connectionFactoryJndiName", propertyValue = "jms.mq.MQ"),
            @ActivationConfigProperty(propertyName = "useJNDI", propertyValue = "true")
        }) 
public class MQListener implements MessageListener {
    @Resource
    private MessageDrivenContext context;

    @Override
    public void onMessage(Message message) {
        String messageContent="";

        try {
            messageId = message.getJMSMessageID();
            if (message != null) {
                messageContent = ((TextMessage)message).getText();
                if(!doSomething(messageContent)){
                    // doSomething fails, I need to rollback the message and try again:
                    context.setRollbackOnly();
                }
            }
        } catch (Exception e) {
            throw new RuntimeException();
        }

    }

    private boolean doSomething(String messageContent){
        // ...
    }

}

Answer 1

我是EJB中的泰罗。但是从代码片段中可以看到，我认为您缺少MessageDrivenContext的初始化。我想你必须做任何一件事

context = getMessageDrivenContext(); 
context.setRollbackOnly();

或

getMessageDrivenContext().setRollbackOnly();