Jms java se client and javax.naming.NoInitialContextException

Question

I am newbie in JMS and this is my first attempt use it. I use glassfish4. I followed this tutorial I set glassfish resources and in EAR application added message driven bean. Plus I opened 7676 port in firewall. After that I created a SE project (different host,ie not the server jvm) with one class SeClient and with the following package seclient;

import java.util.Properties;
import javax.jms.Connection;
import javax.jms.DeliveryMode;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.jms.TopicConnectionFactory;
import javax.naming.Context;
import javax.naming.InitialContext;

public class SeClient {

 public static void main(String a[]) throws Exception {

  // Commands to create Topic
  // asadmin --port 4848 create-jms-resource --restype javax.jms.Topic TestTopic
  // asadmin --port 4848 create-jms-resource --restype javax.jms.TopicConnectionFactory TestTopicConnectionFactory

  String msg = "Hello from remote JMS Client";

  SeClient test = new SeClient();

  System.out.println("==============================");
  System.out.println("Publishig message to Topic");
  System.out.println("==============================");
  System.out.println();
  test.sendMessage2Topic(msg);
  System.out.println();
  System.out.println("==============================");
  System.exit(0);
 }


 private void sendMessage2Topic(String msg) throws Exception{

  // Provide the details of remote JMS Client
  Properties props = new Properties();
  props.put(Context.PROVIDER_URL, "mq://x.x.x.x:7676");//I use my server's IP

  // Create the initial context for remote JMS server
  InitialContext cntxt = new InitialContext(props);
  System.out.println("Context Created");

  // JNDI Lookup for TopicConnectionFactory in remote JMS Provider
  TopicConnectionFactory qFactory = (TopicConnectionFactory)cntxt.lookup("TestTopicConnectionFactory");

  // Create a Connection from TopicConnectionFactory
  Connection connection = qFactory.createConnection();
  System.out.println("Connection established with JMS Provide ");

  // Initialise the communication session
  Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

  // Create the message
  TextMessage message = session.createTextMessage();
  message.setJMSDeliveryMode(DeliveryMode.NON_PERSISTENT);
  message.setText(msg);

  // JNDI Lookup for the Topic in remote JMS Provider
  Topic topic = (Topic)cntxt.lookup("TestTopic");

  // Create the MessageProducer for this communication
  // Session on the Topic we have
  MessageProducer mp = session.createProducer(topic);

  // Broadcast the message to Topic
  mp.send(message);
  System.out.println("Message Sent: " + msg);

  // Make sure all the resources are released
  mp.close();
  session.close();
  cntxt.close();
 }
}

But I get the following error:

Exception in thread "main" javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662) at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:307) at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:344) at javax.naming.InitialContext.lookup(InitialContext.java:411) at seclient.SeClient.sendMessage2Topic(SeClient.java:64) at seclient.SeClient.main(SeClient.java:45) Java Result: 1

Please, say what is wrong with my code/actions.

EDIT: I changed password in gf - configuration - server config - JMS hosts - default_JMS_host and added to the code

props.put(Context.SECURITY_PRINCIPAL, "admin");
props.put(Context.SECURITY_CREDENTIALS, "xxxxxx");

But same result.

Answer 1

您需要为变量CLASSPATH设置值：从Glassfish lib文件夹和Glassfish模块文件夹; c：\\ Glassfish \\ lib *; c：\\ Glassfish \\ modules *;