首先下载rocketmq，启动需要指定rocketmq home目录
cd github
git clone -b develop https://github.com/apache/incubator-rocketmq.git
代码结构代码 收藏代码
whatsmars-mq
|-src
|-main
|-java
|-com.itlong.whatsmars.mq.rocketmq.quickstart
BrokerStartup.java
Consumer.java
NamesrvStartup.java
Producer.java
|-resource
conf.properties
pom.xml
依赖：
Xml代码 收藏代码
<dependencies>
<!-- https://mvnrepository.com/artifact/org.apache.rocketmq/rocketmq-namesrv -->
<dependency>
<groupId>org.apache.rocketmq</groupId>
<artifactId>rocketmq-namesrv</artifactId>
<version>4.0.0-incubating</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.rocketmq/rocketmq-broker -->
<dependency>
<groupId>org.apache.rocketmq</groupId>
<artifactId>rocketmq-broker</artifactId>
<version>4.0.0-incubating</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.rocketmq/rocketmq-client -->
<dependency>
<groupId>org.apache.rocketmq</groupId>
<artifactId>rocketmq-client</artifactId>
<version>4.0.0-incubating</version>
</dependency>
</dependencies>
conf.properties
Xml代码 收藏代码
rocketmqHome=D:\\github\\incubator-rocketmq\\distribution
namesrvAddr=127.0.0.1:9876
mapedFileSizeCommitLog=52428800
mapedFileSizeConsumeQueue=30000
类似于zookeeper的服务：
Java代码 收藏代码
public class NamesrvStartup {
public static void main(String[] args) {
args = new String[] {"-c", "D:\\github\\whatsmars\\whatsmars-mq\\src\\main\\resources\\conf.properties"};
org.apache.rocketmq.namesrv.NamesrvStartup.main(args);
}
}
Broker:
Java代码 收藏代码
public class BrokerStartup {
public static void main(String[] args) {
args = new String[] {"-c", "D:\\github\\whatsmars\\whatsmars-mq\\src\\main\\resources\\conf.properties"};
org.apache.rocketmq.broker.BrokerStartup.main(args);
System.out.println("Broker started.");
}
}
Consumer:
Java代码 收藏代码
package com.itlong.whatsmars.mq.rocketmq.quickstart;
import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;
import org.apache.rocketmq.client.consumer.listener.MessageListenerConcurrently;
import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.common.consumer.ConsumeFromWhere;
import org.apache.rocketmq.common.message.MessageExt;
import java.util.List;
/**
* This example shows how to subscribe and consume messages using providing {@link DefaultMQPushConsumer}.
*/
public class Consumer {
public static void main(String[] args) throws InterruptedException, MQClientException {
/*
* Instantiate with specified consumer group name.
*/
DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("please_rename_unique_group_name_4");
/*
* Specify name server addresses.
* <p/>
*
* Alternatively, you may specify name server addresses via exporting environmental variable: NAMESRV_ADDR
* <pre>
* {@code
* consumer.setNamesrvAddr("name-server1-ip:9876;name-server2-ip:9876");
* }
* </pre>
*/
consumer.setNamesrvAddr("127.0.0.1:9876");
/*
* Specify where to start in case the specified consumer group is a brand new one.
*/
consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);
/*
* Subscribe one more more topics to consume.
*/
consumer.subscribe("TopicTest", "*");
/*
* Register callback to execute on arrival of messages fetched from brokers.
*/
consumer.registerMessageListener(new MessageListenerConcurrently() {
@Override
public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> msgs,
ConsumeConcurrentlyContext context) {
System.out.printf(Thread.currentThread().getName() + " Receive New Messages: " + msgs + "%n");
return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
}
});
/*
* Launch the consumer instance.
*/
consumer.start();
System.out.printf("Consumer Started.%n");
}
}
Producer:
Java代码 收藏代码
package com.itlong.whatsmars.mq.rocketmq.quickstart;
import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.remoting.common.RemotingHelper;
/**
* This class demonstrates how to send messages to brokers using provided {@link DefaultMQProducer}.
*/
public class Producer {
public static void main(String[] args) throws MQClientException, InterruptedException {
/*
* Instantiate with a producer group name.
*/
DefaultMQProducer producer = new DefaultMQProducer("please_rename_unique_group_name");
/*
* Specify name server addresses.
* <p/>
*
* Alternatively, you may specify name server addresses via exporting environmental variable: NAMESRV_ADDR
* <pre>
* {@code
* producer.setNamesrvAddr("name-server1-ip:9876;name-server2-ip:9876");
* }
* </pre>
*/
producer.setNamesrvAddr("127.0.0.1:9876");
/*
* Launch the instance.
*/
producer.start();
for (int i = 0; i < 1000; i++) {
try {
/*
* Create a message instance, specifying topic, tag and message body.
*/
Message msg = new Message("TopicTest" /* Topic */,
"TagA" /* Tag */,
("Hello RocketMQ " + i).getBytes(RemotingHelper.DEFAULT_CHARSET) /* Message body */
);
/*
* Call send message to deliver message to one of brokers.
*/
SendResult sendResult = producer.send(msg);
System.out.printf("%s%n", sendResult);
} catch (Exception e) {
e.printStackTrace();
Thread.sleep(1000);
}
}
/*
* Shut down once the producer instance is not longer in use.
*/
producer.shutdown();
}
}
修改NamesrvStartup,BrokerStartup中的配置文件路径，依次启动NamesrvStartup,BrokerStartup,Consumer,Producer.
消息管理系统 https://github.com/javahongxi/whatsmars/tree/master/rocketmq-console
