Question

import java.util.Properties;
import javax.jms.*;
import javax.naming.*;

public class TopicConsumer implements MessageListener  {


    public static void main(String[] args) throws JMSException, NamingException {
        System.out.println("------>STARTING JMS TopicConsumer<----");

        Context context= TopicConsumer.getInitialContext();

        System.out.println(">>>1<<<");
        TopicConnectionFactory topicConnectionFactory= (TopicConnectionFactory)context.lookup("ConnectionFactory");
        System.out.println(">>>2<<<");
        Topic topic= (Topic) context.lookup("Topic/AKSHAY");
        System.out.println(">>>3<<<");
        TopicConnection topicConnection= topicConnectionFactory.createTopicConnection();
        System.out.println(">>>4<<<");
        TopicSession topicSession= topicConnection.createTopicSession(false,TopicSession.AUTO_ACKNOWLEDGE);
        System.out.println(">>>5<<<");
        topicSession.createSubscriber(topic).setMessageListener(new TopicConsumer());
        System.out.println(">>>6<<<");
        topicConnection.start();
                System.out.println("------>Énding JMS TopicConsumer<----");
    }

    @Override
    public void onMessage(Message message) {
        try {
            System.out.println(">>>on msg<<<");
            System.out.println("Incoming message is"+((TextMessage)message).getText());
        } catch (JMSException e) {
            e.printStackTrace();
        }
    }

    public static Context getInitialContext() throws JMSException, NamingException{
        System.out.println(">>>7<<<");
        Properties props=new Properties();
        System.out.println(">>>8<<<");
        props.setProperty("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");
        System.out.println(">>>9<<<");
        props.setProperty("java.naming.factory.url.pkgs","org.jboss.naming");
        System.out.println(">>>10<<<");
        props.setProperty("java.naming.provider.url","localhost:1099");
        System.out.println(">>>11<<<");
        Context context= new InitialContext();
        System.out.println(">>>12<<<");
        return context;

    }

}

线程“main”中的异常javax.naming.NoInitialContextException：需要在环境或系统属性中指定类名，或者在applet参数中或在应用程序资源文件中指定类名：java.naming.factory.initial 在javax.naming.spi.NamingManager.getInitialContext（未知来源）在javax.naming.InitialContext.getDefaultInitCtx（未知来源）在javax.naming.InitialContext.getURLOrDefaultInitCtx（未知来源）在javax.naming.InitialContext.lookup（未知来源）在TopicProducer.main（TopicProducer.java:19）

我是Jms的新手。我的代码就像这样。异常是命名异常：我似乎在设置JNDI或类路径时遇到问题。我已经包含以下JMS.jar文件类路径或JNDI中的问题......？使用Eclipse Juno Jboss 5.0和JDK 1.7

Answer 1

您可能忘记在创建上下文时包含属性。

所以而不是

Context context= new InitialContext();

试

Context context= new InitialContext(properties);

简单的jms应用程序中的javax.naming.NoInitialContextException

1 个答案: