@Override
public void close() throws JMSException {
try {
if (started.get()) {
targetProducer.shutdown();
targetProducer = null;
session.removeProducer(this);
started.set(false);
}
} catch (Exception ex) {
throw JMSExceptionSupport.create(ex);
}
}
public static void main(String[] args) {
try {
MQProducer producer = new DefaultMQProducer("please_rename_unique_group_name");
producer.start();
String[] tags = new String[] {"TagA", "TagB", "TagC", "TagD", "TagE"};
for (int i = 0; i < 100; i++) {
// 订单ID相同的消息要有序
int orderId = i % 10;
Message msg =
new Message(
"TopicTest", tags[i % tags.length], "KEY" + i, ("Hello RocketMQ " + i).getBytes());
SendResult sendResult =
producer.send(
msg,
new MessageQueueSelector() {
@Override
public MessageQueue select(List<MessageQueue> mqs, Message msg, Object arg) {
Integer id = (Integer) arg;
int index = id % mqs.size();
return mqs.get(index);
}
},
orderId);
System.out.println(sendResult);
}
producer.shutdown();
} catch (MQClientException e) {
e.printStackTrace();
} catch (RemotingException e) {
e.printStackTrace();
} catch (MQBrokerException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
/**
* @param args
* @throws MQClientException
*/
public static void main(String[] args) throws MQClientException {
MQProducer oneWayOrderProducer = new DefaultMQProducer("example.producer");
oneWayOrderProducer.start();
String[] tags = new String[] {"TagA", "TagB", "TagC", "TagD", "TagE"};
MessageQueueSelector selector =
new MessageQueueSelector() {
@Override
public MessageQueue select(List<MessageQueue> mqs, Message msg, Object arg) {
Integer id = (Integer) arg;
int index = id % mqs.size();
return mqs.get(index);
}
};
for (int i = 0; i < 10; i++) {
try {
int orderId = i % 10;
Message msg =
new Message(
"TopicTest",
tags[i % tags.length],
"KEY" + i,
("Hello RocketMQ from OneWay" + i).getBytes());
oneWayOrderProducer.sendOneway(msg, selector, orderId);
} catch (RemotingException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
} catch (MQClientException e1) {
e1.printStackTrace();
}
}
oneWayOrderProducer.shutdown();
System.exit(0);
}