Question

求Java连接MQ的代码，通过代码实现收发消息，谢谢各位大神！

Answer 1

import javax.jms.BytesMessage;
import javax.jms.Connection;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.MessageProducer;
import javax.jms.Session;

import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;

import com.fxun.plant.vo.CommandVO;
public class ProducerTool extends Thread {

private Destination destination;
// private int messageCount = 500;
long sleepTime = 0;
// private boolean verbose = true;
// private int messageSize = 255;
private long timeToLive = 0; // 消息存活时间
private String user = ActiveMQConnection.DEFAULT_USER;
private String password = ActiveMQConnection.DEFAULT_PASSWORD;
private String url = ActiveMQConnection.DEFAULT_BROKER_URL;
private String subject; // subject的名字,默认是TOOL.DEFAULT
// private boolean topic;
private boolean transacted = false; // 是否采用事务
// private boolean persistent = false;
private P2PQueue p2pQueue;

public ProducerTool(String user, String password, String url, String subject) {
this.user = user;
this.password = password;
this.url = url;
this.subject = subject;
}

public void run() {
Connection connection = null;
try {
// Create the connection.
ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(user, password, url);
connection = connectionFactory.createConnection();
connection.start();

// Create the session
Session session = connection.createSession(transacted, Session.AUTO_ACKNOWLEDGE);
destination = session.createQueue(subject);

// Create the producer.
MessageProducer producer = session.createProducer(destination);
producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
producer.setTimeToLive(timeToLive);

CommandVO commandVO = null;
int size = 0;
while (true) {
size = p2pQueue.getSize();

if (size > 0) {
BytesMessage message = session.createBytesMessage();
message.writeInt(size);
for (int i = 0; i < size; i++) {
commandVO = p2pQueue.pool();
if(commandVO == null) {
message.writeInt(0);
} else {
message.writeInt(commandVO.getCountSize());
message.writeInt(commandVO.getCommand()); // 指令
message.writeBytes(commandVO.getContent()); // 内容
}
}

producer.send(message);

}
Thread.sleep(300);
}

// Use the ActiveMQConnection interface to dump the connection
// stats.
// ActiveMQConnection c = (ActiveMQConnection) connection;
// c.getConnectionStats().dump(new IndentPrinter());

} catch (Exception e) {
System.out.println("Caught: " + e);
e.printStackTrace();
} finally {
try {
connection.close();
} catch (Throwable ignore) {
}
}
}

public void setPassword(String pwd) {
this.password = pwd;
}

public void setSleepTime(long sleepTime) {
this.sleepTime = sleepTime;
}

public void setSubject(String subject) {
this.subject = subject;
}

public void setTimeToLive(long timeToLive) {
this.timeToLive = timeToLive;
}

public void setTransacted(boolean transacted) {
this.transacted = transacted;
}

public void setUrl(String url) {
this.url = url;
}

public void setUser(String user) {
this.user = user;
}

public P2PQueue getP2pQueue() {
return p2pQueue;
}

public void setP2pQueue(P2PQueue p2pQueue) {
this.p2pQueue = p2pQueue;
}

}

原代码都发给你