javax。命名。简单jms应用程序中的NoInitialContextException

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.NoFirst alContextException：需要在环境或系统属性中指定类名，或者作为小程序参数，或者在应用程序资源文件中指定类名：java.naming.factory.initialjavax.naming.spi.NamingManager.getjavax.naming.的初始上下文（未知源）ontext.getjavax.naming.的DefaultInitCtx（未知源）ontext.getURLOrDefaultInitCtx（未知源）javax.naming.的初始ontext.lookup（未知源）在TopicProducer.main（TopicProducer.java:19）

我是Jms新手。我的代码是这样的。异常是命名异常：我似乎在设置JNDI或类路径时遇到了问题。我已经包含了以下JMS。classpath或JNDI中的jar文件问题。。。？使用Eclipse Juno Jboss 5.0和JDK 1.7

Answer 1

您可能在创建上下文时忘记了包含属性。

因此

Context context= new InitialContext();

尝试

Context context= new InitialContext(properties);