RocketMQ部署

1.解压后用maven编译

unzip rocketmq-all-4.3.0-source-release.zip
cd rocketmq-all-4.3.0/
mvn -Prelease-all -DskipTests clean install -U
cd distribution/target/apache-rocketmq
cd rocketmq-all-4.3.0/distribution/target/apache-rocketmq

 配置mavne环境变量

export MAVEN_HOME=/usr/local/maven3
export PATH=${PATH}:${MAVEN_HOME}/bin

2.修改内存

vim bin/runbroker.sh
vim bin/runserver.sh
JAVA_OPT="${JAVA_OPT} -server -Xms1g -Xmx1g -Xmn512m"

3.启动名称服务器

nohup sh bin/mqnamesrv -n localhost:9876 autoCreateTopicEnable=true&
tail -f ~/logs/rocketmqlogs/namesrv.log

4.启动经纪人

nohup sh bin/mqbroker -n localhost:9876 autoCreateTopicEnable=true&
tail -f ~/logs/rocketmqlogs/broker.log

5.发送接收测试

export NAMESRV_ADDR=localhost:9876
sh bin/tools.sh org.apache.rocketmq.example.quickstart.Producer SendResult [sendStatus=SEND_OK]
sh bin/tools.sh org.apache.rocketmq.example.quickstart.Consumer

6.关闭服务器

sh bin/mqshutdown broker
sh bin/mqshutdown namesrv

7.java测试

<dependency>
        <groupId>org.apache.rocketmq</groupId>
        <artifactId>rocketmq-client</artifactId>
        <version>4.1.0-incubating</version>
</dependency>

package rocketmq;

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.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.consumer.ConsumeFromWhere;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.common.message.MessageExt;
import org.apache.rocketmq.remoting.common.RemotingHelper;
import org.junit.Test;

import java.util.List;

public class RocketMQTest {
    @Test
    public void mqSendTest() throws InterruptedException, MQClientException {
        DefaultMQProducer producer = new DefaultMQProducer("producer_demo");
        //指定NameServer地址
        //producer.setNamesrvAddr("10.125.20.39:9876"); //修改为自己的
        producer.setNamesrvAddr("192.168.121.130:9876"); //修改为自己的

        /**
         * Producer对象在使用之前必须要调用start初始化，初始化一次即可
         * 注意：切记不可以在每次发送消息时，都调用start方法
         */
        producer.start();

        for (int i = 0; i < 997892; i++) {
            try {
                //构建消息
                Message msg = new Message("TopicTest" /* Topic */,
                        "TagA" /* Tag */,
                        ("测试RocketMQ" + i).getBytes(RemotingHelper.DEFAULT_CHARSET)
                );

                //发送同步消息
                SendResult sendResult = producer.send(msg);

                System.out.printf("%s%n", sendResult);
            } catch (Exception e) {
                e.printStackTrace();
                Thread.sleep(1000);
            }
        }


        producer.shutdown();
    }

    @Test
    public void mqConsumer() throws MQClientException {
        /**
         * Consumer Group,非常重要的概念，后续会慢慢补充
         */
        DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("consumer_demo");
//指定NameServer地址，多个地址以 ; 隔开
        consumer.setNamesrvAddr("10.125.20.39:9876"); //修改为自己的

/**
 * 设置Consumer第一次启动是从队列头部开始消费还是队列尾部开始消费
 * 如果非第一次启动，那么按照上次消费的位置继续消费
 */
        consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);

        consumer.subscribe("TopicTest", "*");

        consumer.registerMessageListener(new MessageListenerConcurrently() {

            @Override
            public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> msgs,
                                                            ConsumeConcurrentlyContext context) {
                try {
                    for (MessageExt msg : msgs) {
                        String msgbody = new String(msg.getBody(), "utf-8");
                        System.out.println("  MessageBody: " + msgbody);//输出消息内容
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                    return ConsumeConcurrentlyStatus.RECONSUME_LATER; //稍后再试
                }
                return ConsumeConcurrentlyStatus.CONSUME_SUCCESS; //消费成功
            }
        });


        consumer.start();

        System.out.printf("Consumer Started.%n");
    }
}

中文名:惠凡

博客名:淹死的鱼o0

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