单节点rocketmq环境搭建

官网地址: http://rocketmq.apache.org/docs/quick-start/

下载源码地址: https://www.apache.org/dyn/closer.cgi?path=rocketmq/4.4.0/rocketmq-all-4.4.0-source-release.zip

环境准备:

jdk1.8的安装参考: https://blog.csdn.net/qq_38270106/article/details/83048876

maven的安装参考: https://blog.csdn.net/qq_38270106/article/details/97764483

1 下载好压缩包之后使用rz目录上传到/usr/local目录, 解压

cd /usr/local

rz

unzip rocketmq-all-4.4.0-source-release.zip

2 打包

cd /usr/local/rocketmq-all-4.4.0/

mvn -Prelease-all -DskipTests clean install -U

3修改配置(如果不修改可能启动报错内存溢出)

cd /usr/local/rocketmq-all-4.4.0/distribution/target/apache-rocketmq

 3.1修改runserver.sh

vi bin/runserver.sh 

JAVA_OPT="${JAVA_OPT} -server -Xms256m -Xmx256m -Xmn125m -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m"

 3.2修改runbroker.sh

vi bin/runbroker.sh

JAVA_OPT="${JAVA_OPT} -server -Xms256m -Xmx256m -Xmn125m"

3.3 修改broker.conf

namesrvAddr = 127.0.0.1:9876
brokerIP1 = 192.168.44.135 #这里改成虚拟机ip

4 启动namesrv和broker

nohup sh bin/mqnamesrv &

nohup sh bin/mqbroker -n localhost:9876 autoCreateTopicEnable=true -c conf/broker.conf &

查看启动log

cat nohup.log

 5 代码测试

pom.xml

            org.apache.rocketmq
            rocketmq-client
            4.0.0-incubating
        
        
            com.alibaba
            fastjson
            1.2.58
        

生产者 

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;

/**
 * @description:
 * @author: liuwq
 * @date: 2019/7/29 0029 下午 3:30
 * @version: V1.0
 */
public class Producer {

    public static void main(String[] args) throws MQClientException, InterruptedException {

        //声明并初始化一个producer
        //需要一个producer group名字作为构造方法的参数，这里为producer1
        DefaultMQProducer producer = new DefaultMQProducer("producer1");

        //设置NameServer地址,此处应改为实际NameServer地址，多个地址之间用；分隔
        //NameServer的地址必须有，但是也可以通过环境变量的方式设置，不一定非得写死在代码里
        producer.setNamesrvAddr("192.168.44.135:9876");

        //调用start()方法启动一个producer实例
        producer.start();

        //发送10条消息到Topic为TopicTest，tag为TagA，消息内容为“Hello RocketMQ”拼接上i的值
        for (int i = 0; i < 10; i++) {
            try {
                Message msg = new Message("TopicTest",// topic
                        "TagA",// tag
                        ("Hello RocketMQ " + i).getBytes(RemotingHelper.DEFAULT_CHARSET)// body
                );

                //调用producer的send()方法发送消息
                //这里调用的是同步的方式，所以会有返回结果
                SendResult sendResult = producer.send(msg);

                //打印返回结果，可以看到消息发送的状态以及一些相关信息
                System.out.println(sendResult);
            } catch (Exception e) {
                e.printStackTrace();
                Thread.sleep(1000);
            }
        }

        //发送完消息之后，调用shutdown()方法关闭producer
        producer.shutdown();
    }

}

消费者 

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.io.UnsupportedEncodingException;
import java.util.List;

/**
 * @description:
 * @author: liuwq
 * @date: 2019/7/29 0029 下午 3:31
 * @version: V1.0
 */
public class Consumer {

    public static void main(String[] args) throws InterruptedException, MQClientException {

        //声明并初始化一个consumer
        //需要一个consumer group名字作为构造方法的参数，这里为consumer1
        DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("consumer1");

        //同样也要设置NameServer地址 多个地址用分号隔开
        consumer.setNamesrvAddr("192.168.44.135:9876");

        //这里设置的是一个consumer的消费策略
        //CONSUME_FROM_LAST_OFFSET 默认策略，从该队列最尾开始消费，即跳过历史消息
        //CONSUME_FROM_FIRST_OFFSET 从队列最开始开始消费，即历史消息（还储存在broker的）全部消费一遍
        //CONSUME_FROM_TIMESTAMP 从某个时间点开始消费，和setConsumeTimestamp()配合使用，默认是半个小时以前
        consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);

        //设置consumer所订阅的Topic和Tag，*代表全部的Tag
        consumer.subscribe("TopicTest", "*");

        //设置一个Listener，主要进行消息的逻辑处理
        consumer.registerMessageListener(new MessageListenerConcurrently() {

            @Override
            public ConsumeConcurrentlyStatus consumeMessage(List msgs,
                                                            ConsumeConcurrentlyContext context) {

                System.out.println(Thread.currentThread().getName() + " 收到新消息: ");
                for(MessageExt me:msgs){
                    try {
                        System.out.println(new String(me.getBody(),"utf-8"));
                    } catch (UnsupportedEncodingException e) {
                        e.printStackTrace();
                    }
                }

                //返回消费状态
                //CONSUME_SUCCESS 消费成功
                //RECONSUME_LATER 消费失败，需要稍后重新消费
                return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
            }
        });

        //调用start()方法启动consumer
        consumer.start();

        System.out.println("Consumer Started.");
    }

}

 

 6 停止namesrv和borker(可不执行)

sh bin/mqshutdown broker

sh bin/mqshutdown namesrv

 7 rocketmq-console安装

github下载源码地址: https://github.com/apache/rocketmq-externals

下载完之后使用rz目录上传到/usr/local目录, 解压

cd /usr/local

rz

unzip rocketmq-externals-master.zip

8 修改配置文件namesrv地址

vi /usr/local/rocketmq-externals-master/rocketmq-console/src/main/resources/application.properties

9 maven打包

cd /usr/local/rocketmq-externals-master/rocketmq-console

mvn clean install -DskipTests 

10 运行jar包 

java -jar /usr/local/rocketmq-externals-master/rocketmq-console/target/rocketmq-console-ng-1.0.1.jar 

访问: http://192.168.44.135:8080/#/