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我正在實現MessageListner類的onMessgae（）方法，但它不工作，即使我將調試點放在此方法內但調試器也不在此方法內。消息監聽器onMessage（）方法不會衝突來自隊列的消息
使用此方法接收來自隊列的消息。 下面是我收到消息，但它不是給人當我通過發送者類發送消息和它的消息發送到JMS服務器，並顯示像這樣在服務器
名稱服務器DestiCurrent MessagesCurrent MessagesPending MessagesReceived JMSServer-的任何消息代碼0的AdminServer 3 15 1 2
代碼Reciver：
{
import java.util.Hashtable;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.Queue;
import javax.jms.QueueConnection;
import javax.jms.QueueConnectionFactory;
import javax.jms.QueueReceiver;
import javax.jms.QueueSession;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
public class QueueReceive implements MessageListener {
public final static String Server="t3://localhost:7001";
public final static String JNDI_FACTORY = "weblogic.jndi.WLInitialContextFactory";
public final static String JMS_FACTORY = "CF1";
enter code here
public final static String QUEUE = "Queue1";
private QueueConnectionFactory qconFactory;
private QueueConnection qcon;
private QueueSession qsession;
private QueueReceiver qreceiver;
private Queue queue;
private boolean quit = false;
String s1 = "avanish";
public void init(Context ctx, String queueName) throws NamingException, JMSException {
qconFactory = (QueueConnectionFactory) ctx.lookup(JMS_FACTORY);
qcon = qconFactory.createQueueConnection();
qsession = qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
queue = (Queue) ctx.lookup(queueName);
qreceiver = qsession.createReceiver(queue);
qreceiver.setMessageListener(this);
qcon.start();
System.out.println(qreceiver.receive());
}
public void close() throws JMSException {
qreceiver.close();
qsession.close();
qcon.close();
}
public static void main(String[] args) throws Exception {
/*if (args.length != 1) {
System.out.println("Usage: java examples.jms.queue.QueueReceive WebLogicURL");
return;
}*/
InitialContext ic = getInitialContext();
QueueReceive qr = new QueueReceive();
qr.init(ic, QUEUE);
System.out.println("JMS Ready To Receive Messages (To quit, send a \"quit\" message).");
synchronized (qr) {
while (!qr.quit) {
try {
qr.wait();
} catch (InterruptedException ie) {
}
}
}
qr.close();
}
private static InitialContext getInitialContext() throws NamingException {
Hashtable<String, String> env = new Hashtable<String, String>();
env.put(Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);
env.put(Context.PROVIDER_URL, Server);
return new InitialContext(env);
}
@Override
public void onMessage(Message msg) {
try {
String msgText;
if(msg instanceof TextMessage){
msgText = ((TextMessage) msg).getText();
}
else{
msgText = msg.toString();
}
System.out.println("reciver msg" + msgText);
if(msgText.equalsIgnoreCase("quit")){
synchronized (this) {
quit= true;
this.notifyAll();
}
}
} catch (JMSException e) {
System.err.println("Exception" + e.getMessage());
}
}
}
}
代碼發信人： {
import javax.jms.JMSException;
import javax.jms.Queue;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Hashtable;
import javax.jms.*;
import javax.jms.QueueConnection;
import javax.jms.QueueConnectionFactory;
import javax.jms.QueueSender;
import javax.jms.QueueSession;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
public class QueueSend {
public final static String Server="t3://localhost:7001";
public final static String JNDI_FACTORY = "weblogic.jndi.WLInitialContextFactory";
public final static String JMS_FACTORY = "CF1";
public final static String QUEUE = "Queue1";
// public final static String QUEUE = "DQ";
private QueueConnectionFactory qconFactory;
private QueueConnection qcon;
private QueueSession qsession;
private QueueSender qsender;
private Queue queue;
private TextMessage msg;
public void init(Context ctx, String queueName) throws NamingException, JMSException
{
qconFactory = (QueueConnectionFactory) ctx.lookup(JMS_FACTORY);
qcon = qconFactory.createQueueConnection();
qsession = qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
queue = (Queue) ctx.lookup(queueName);
qsender = qsession.createSender(queue);
msg = qsession.createTextMessage();
qcon.start();
}
public void send(String message) throws JMSException {
msg.setText(message);
//msg.acknowledge();
qsender.setPriority(9);
qsender.send(msg);
}
public void close() throws JMSException {
qsender.close();
qsession.close();
qcon.close();
}
public static void main(String[] args) throws Exception {
InitialContext ic = getInitialContext();
QueueSend qs = new QueueSend();
qs.init(ic, QUEUE);
readAndSend(qs);
qs.close();
}
private static void readAndSend(QueueSend qs) throws IOException, JMSException
{
BufferedReader msgStream = new BufferedReader(new InputStreamReader(System.in));
String line = null;
boolean quitNow = false;
do {
System.out.print("Enter message (\"quit\" to quit): \n");
line = msgStream.readLine();
if (line != null && line.trim().length() != 0) {
qs.send(line);
System.out.println("JMS Message Sent: " + line + "\n");
quitNow = line.equalsIgnoreCase("quit");
}
} while (!quitNow);
}
private static InitialContext getInitialContext()
throws NamingException
{
Hashtable<String, String> env = new Hashtable<String, String>();
env.put(Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);
env.put(Context.PROVIDER_URL, Server);
return new InitialContext(env);
}
}
}
您應該做的第一件事是確保郵件得到發送。首先逐步通過發送代碼確保它到達發送消息的行。 –
@bremen_matt：是的，無論我發送什麼消息，服務器都收到消息，並且在發送每條消息之後，JMSSERVER會增加計數。 –
對不起，從您的評論中不清楚...因此，您可以驗證服務器是否也發送消息？ –