Question

我正在编写一个发送消息的Qpid客户端。我使用的示例代码是：

private void runTest() throws Exception {
  Properties properties = new Properties();
  properties.load(this.getClass().getResourceAsStream("helloworld.properties")); 
  Context context = new InitialContext(properties);                              

  ConnectionFactory connectionFactory = (ConnectionFactory) context.lookup("qpidConnectionFactory");             
  Connection connection = connectionFactory.createConnection();                  
  connection.start();                                                            

  Session session = connection.createSession(true, Session.SESSION_TRANSACTED);  
  Queue queue = (Queue) context.lookup("myqueue");                               

  MessageConsumer messageConsumer = session.createConsumer(queue);               
  MessageProducer messageProducer = session.createProducer(queue);               

  TextMessage message = session.createTextMessage("Hello world!");                
  messageProducer.send(message);
  session.commit();

  message = (TextMessage)messageConsumer.receive();                               
  session.commit();
  System.out.println(message.getText());

  connection.close();                                                             
  context.close();                                                                
}

随附的配置是：

java.naming.factory.initial = org.apache.qpid.jndi.PropertiesFileInitialContextFactory
connectionfactory.qpidConnectionFactory = amqp://guest:guest@clientid/?brokerlist='tcp://localhost:61111'
queue.myqueue = queue1

我得到的错误是：

Exception in thread "main" javax.naming.NoInitialContextException: Cannot instantiate class: org.apache.qpid.jndi.PropertiesFileInitialContextFactory [Root exception is java.lang.ClassNotFoundException: org.apache.qpid.jndi.PropertiesFileInitialContextFactory]
    at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:674)
    at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:313)
    at javax.naming.InitialContext.init(InitialContext.java:244)
    at javax.naming.InitialContext.<init>(InitialContext.java:216)
    at Hello.runTest(Hello.java:19)
    at Hello.main(Hello.java:13)
Caused by: java.lang.ClassNotFoundException: org.apache.qpid.jndi.PropertiesFileInitialContextFactory
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:348)
    at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:72)
    at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:61)
    at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:672)
    ... 5 more

看起来无法初始化Properties文件的上下文。

我在端口61111上本地运行ActiveMQ实例。 Properties文件确实在我的CLASSPATH中。我还能在这里找到什么？

Answer 1

尝试java.naming.factory.initial = org.apache.qpid.jms.jndi.JmsInitialContextFactory

无法实例化类：org.apache.qpid.jndi.PropertiesFileInitialContextFactory

1 个答案: