1、生產者:
package com.ebways.mq.test.mq;
import com.alibaba.rocketmq.client.exception.MQClientException;
import com.alibaba.rocketmq.client.producer.DefaultMQProducer;
import com.alibaba.rocketmq.client.producer.SendResult;
import com.alibaba.rocketmq.common.message.Message;
import java.util.concurrent.TimeUnit;
/**
* Created by gmq on 2016/10/13 0013.
*/
public class NewRocketProductor {
public static void main(String[] args) throws MQClientException, Exception {
/**
* 一個應用創建一個Producer,由應用來維護此對象,可以設置爲全局對象或者單例<br>
* 注意:ProducerGroupName需要由應用來保證唯一<br>
* ProducerGroup這個概念發送普通的消息時,作用不大,但是發送分佈式事務消息時,比較關鍵,
* 因爲服務器會回查這個Group下的任意一個Producer
*/
DefaultMQProducer producer = new DefaultMQProducer("ProducerGroupName");
producer.setNamesrvAddr("192.168.100.190:9876");
producer.setInstanceName("Producer");
/**
* Producer對象在使用之前必須要調用start初始化,初始化一次即可<br>
* 注意:切記不可以在每次發送消息時,都調用start方法
*/
producer.start();
/**
* 下面這段代碼表明一個Producer對象可以發送多個topic,多個tag的消息。
* 注意:send方法是同步調用,只要不拋異常就標識成功。但是發送成功也可會有多種狀態,<br>
* 例如消息寫入Master成功,但是Slave不成功,這種情況消息屬於成功,但是對於個別應用如果對消息可靠性要求極高,<br>
* 需要對這種情況做處理。另外,消息可能會存在發送失敗的情況,失敗重試由應用來處理。
*/
for (int i = 0; i < 10; i++) {
try {
{
Message msg = new Message("TopicTest1",// topic
"TagA",// tag
"OrderID001",// key
("Hello MetaQ").getBytes());// body
SendResult sendResult = producer.send(msg);
System.out.println(sendResult);
}
{
Message msg = new Message("TopicTest2",// topic
"TagB",// tag
"OrderID0034",// key
("Hello MetaQ").getBytes());// body
SendResult sendResult = producer.send(msg);
System.out.println(sendResult);
}
{
Message msg = new Message("TopicTest3",// topic
"TagC",// tag
"OrderID061",// key
("Hello MetaQ").getBytes());// body
SendResult sendResult = producer.send(msg);
System.out.println(sendResult);
}
} catch (Exception e) {
e.printStackTrace();
}
TimeUnit.MILLISECONDS.sleep(1000);
}
/**
* 應用退出時,要調用shutdown來清理資源,關閉網絡連接,從MetaQ服務器上註銷自己
* 注意:我們建議應用在JBOSS、Tomcat等容器的退出鉤子裏調用shutdown方法
*/
producer.shutdown();
}
}
package com.ebways.mq.test.mq;
import com.alibaba.rocketmq.client.consumer.DefaultMQPushConsumer;
import com.alibaba.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;
import com.alibaba.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;
import com.alibaba.rocketmq.client.consumer.listener.MessageListenerConcurrently;
import com.alibaba.rocketmq.common.message.MessageExt;
import java.util.List;
/**
* Created by Administrator on 2016/10/14 0014.
*/
public class NewRocketConsumer {
public static void main(String[] args) throws Exception {
/**
* 一個應用創建一個Consumer,由應用來維護此對象,可以設置爲全局對象或者單例<br>
* 注意:ConsumerGroupName需要由應用來保證唯一
*/
DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("ConsumerGroupName");
consumer.setNamesrvAddr("192.168.100.190:9876");
consumer.setInstanceName("Consumber");
/**
* 訂閱指定topic下tags分別等於TagA或TagC或TagD
*/
consumer.subscribe("TopicTest1", "TagA || TagC || TagD");
/**
* 訂閱指定topic下所有消息<br>
* 注意:一個consumer對象可以訂閱多個topic
*/
consumer.subscribe("TopicTest2", "*");
consumer.registerMessageListener(new MessageListenerConcurrently() {
/**
* 默認msgs裏只有一條消息,可以通過設置consumeMessageBatchMaxSize參數來批量接收消息
*/
@Override
public ConsumeConcurrentlyStatus consumeMessage(
List<MessageExt> msgs, ConsumeConcurrentlyContext context) {
System.err.println(Thread.currentThread().getName()
+ " Receive New Messages: " + msgs.size());
MessageExt msg = msgs.get(0);
if (msg.getTopic().equals("TopicTest1")) {
// 執行TopicTest1的消費邏輯
if (msg.getTags() != null && msg.getTags().equals("TagA")) {
// 執行TagA的消費
System.err.println(new String(msg.getBody()));
} else if (msg.getTags() != null
&& msg.getTags().equals("TagC")) {
// 執行TagC的消費
System.err.println("TagC:=====");
System.err.println(new String(msg.getBody()));
} else if (msg.getTags() != null
&& msg.getTags().equals("TagD")) {
// 執行TagD的消費
System.err.println("TagD:=====");
System.err.println(new String(msg.getBody()));
}
} else if (msg.getTopic().equals("TopicTest2")) {
System.err.println("TopicTest2:=====");
System.err.println(new String(msg.getBody()));
}
return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
}
});
/**
* Consumer對象在使用之前必須要調用start初始化,初始化一次即可<br>
*/
consumer.start();
System.err.println("Consumer Started.");
}
}