软件清单

a、git(yum intsall git);b、jdk1.8; c、maven; d、rocketmq

操作步骤

1、首先下载rocketMq3.5.8

2、tar -zxvf rocketmq-3.5.8.tar.gz

3、进入rocketmq-3.5.8

4、sh install.sh,初始化rocketmq(这是初始化和下载东西,是必须项目)

5、下载完毕,执行 cd devenv(进入这个文件夹devenv)

6、编写rocket环境 (1)"ROCKETMQ_HOME=pwd" >> ~/.bash_profile

(2)source ~/.bash_profile

7、修改内存大小bin文件夹下面的runserver.sh文件夹的内存,从4G修改成128m和256m(因为我的测试服务器内存不大)

8、修改内存大小bin文件夹下面的runbroker.sh件夹的内存,从4G修改成128m和256m(因为我的测试服务器内存不大) 9、初始化并且授予权限

(1)cd /usr/local/rocketmq/rocketmq3.5.8/target/alibaba-rocketmq-broker/alibaba-rocketmq/bin

(2)授予执行权限 chmod +x mqadmin mqbroker mqfiltersrv mqnamesrv mqshutdown

10、运行namesrv服务(同时将日志归类)

(1)nohup mqnamesrv 1>/usr/local/rocketmq/rocketmq3.5.8/target/alibaba-rocketmq-broker/alibaba-rocketmq/log/ng.log 2>/usr/local/rocketmq/rocketmq3.5.8/target/alibaba-rocketmq-broker/alibaba-rocketmq/log/ng-err.log &

(2)查看ng.log,如果出现 The Name Server boot success. serializeType=JSON,则表示nameServer开启成功

11、启动mqbroker

(1)nohup sh mqbroker -n ip:9876 autoCreateTopicEnable=true > /usr/local/rocketmq/rocketmq3.5.8/target/alibaba-rocketmq-broker/alibaba-rocketmq/log/broker.log 2>&1 &

(2)查看broker.log,如果出现 The Name Server boot success. serializeType=JSON,则表示nameServer开启成功

12、查看是否运行成功 ps aux | grep java

如果代码里面生产者和消费者加上这句话,就走端口10909,不加就走vip的10911,看服务器日志启动哪个端口而定加不加 producer.setVipChannelEnabled(false);

代码区

1、消费者代码


package cn.shopin.ssm.testRocketMq;

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.client.exception.MQClientException;
import com.alibaba.rocketmq.common.consumer.ConsumeFromWhere;
import com.alibaba.rocketmq.common.message.MessageExt;

import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * Created by Administrator on 2017/12/26.
 */
public class ConsumerTest01 {
    /**
     * 当前例子是PushConsumer用法,使用方式给用户感觉是消息从RocketMQ服务器推到了应用客户端。<br>
     * 但是实际PushConsumer内部是使用长轮询Pull方式从MetaQ服务器拉消息,然后再回调用户Listener方法<br>
     */
    public static void main(String[] args) {

        /**
         * 注意:ConsumerGroupName需要由应用来保证唯一
         */
        DefaultMQPushConsumer pushConsumer = new DefaultMQPushConsumer("ProducerGroupName");
        //pushConsumer.setNamesrvAddr("192.168.180.1:9876");
        pushConsumer.setNamesrvAddr("ip:9876");
        pushConsumer.setInstanceName("Consumer");
        /**
         * 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<br>
         * 如果非第一次启动,那么按照上次消费的位置继续消费
         */
        pushConsumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);
        try {
            /**
             * 订阅指定topic下tags分别等于TagA或TagC或TagD
             * 两个参数:第一个参数是topic第二个参数是tags
             */
            pushConsumer.subscribe("TopicTest1", "TagA || TagC || TagD");
            pushConsumer.subscribe("TopicTest2", "*");
            pushConsumer.subscribe("TopicTest3", "*");
            /**
             * 订阅指定topic下所有消息<br>
             * 注意:一个consumer对象可以订阅多个topic
             */
            //pushConsumer.subscribe("TopicTest2", "*");
            final AtomicInteger count = new AtomicInteger();
            pushConsumer.registerMessageListener(new MessageListenerConcurrently() {
                @Override
                public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> msgs,
                                                                ConsumeConcurrentlyContext consumeConcurrentlyContext) {
                    System.out.println(Thread.currentThread().getName() + " Receive New Messages: " + msgs.size());
                    MessageExt messageExt = msgs.get(0);
                    count.getAndIncrement();
                    if ("TopicTest1".equals(messageExt.getTopic())) {
                        // 执行TopicTest1的消费逻辑
                        if (messageExt.getTags() != null && messageExt.getTags().equals("TagA")) {
                            // 执行TagA的消费
                            System.out.println("TopicTest1的TagA:"+new String(messageExt.getBody()));
                        } else if (messageExt.getTags() != null && messageExt.getTags().equals("TagB")) {
                            System.out.println("TopicTest1的TagB:"+new String(messageExt.getBody()));
                        } else if (messageExt.getTags() != null && messageExt.getTags().equals("TagC")) {
                            System.out.println("TopicTest1的TagC:"+new String(messageExt.getBody()));
                        }
                    } else if ("TopicTest2".equals(messageExt.getTopic())) {
                        // 执行TopicTest1的消费逻辑
                        if (messageExt.getTags() != null && messageExt.getTags().equals("TagA")) {
                            // 执行TagA的消费
                            System.out.println("TopicTest2的TagA:"+new String(messageExt.getBody()));
                        } else if (messageExt.getTags() != null && messageExt.getTags().equals("TagB")) {
                            System.out.println("TopicTest2的TagB:"+new String(messageExt.getBody()));
                        } else if (messageExt.getTags() != null && messageExt.getTags().equals("TagC")) {
                            System.out.println("TopicTest2的TagC:"+new String(messageExt.getBody()));
                        }
                    } else if ("TopicTest3".equals(messageExt.getTopic())) {
                        // 执行TopicTest1的消费逻辑
                        if (messageExt.getTags() != null && messageExt.getTags().equals("TagA")) {
                            // 执行TagA的消费
                            System.out.println("TopicTest3的TagA:"+new String(messageExt.getBody()));
                        } else if (messageExt.getTags() != null && messageExt.getTags().equals("TagB")) {
                            System.out.println("TopicTest3的TagB:"+new String(messageExt.getBody()));
                        } else if (messageExt.getTags() != null && messageExt.getTags().equals("TagC")) {
                            System.out.println("TopicTest3的TagC:"+new String(messageExt.getBody()));
                        }
                    }
                    System.out.println("当前的count的值为:"+count);
                    return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
                }
            });
        } catch (MQClientException e) {
            e.printStackTrace();
        }
        /**
         * Consumer对象在使用之前必须要调用start初始化,初始化一次即可<br>
         */
        try {
            pushConsumer.start();
        } catch (MQClientException e) {
            e.printStackTrace();
        }
        System.out.println("Consumer Started.");
    }
}

2、生产者代码

package cn.shopin.ssm.testRocketMq;

import com.alibaba.rocketmq.client.exception.MQBrokerException;
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 com.alibaba.rocketmq.remoting.exception.RemotingException;

import java.util.concurrent.TimeUnit;

/**
 * Created by Administrator on 2017/12/26.
 */
public class ProducerTest01 {
    public static void main(String[] args) {
        /**
         * 一个应用创建一个Producer,由应用来维护此对象,可以设置为全局对象或者单例<br>
         * 注意:ProducerGroupName需要由应用来保证唯一<br>
         * ProducerGroup这个概念发送普通的消息时,作用不大,但是发送分布式事务消息时,比较关键,
         * 因为服务器会回查这个Group下的任意一个Producer
         */
        DefaultMQProducer producer = new DefaultMQProducer("ProducerGroupName");
        //producer.setNamesrvAddr("192.168.180.1:9876");
        producer.setNamesrvAddr("ip:9876");
        producer.setInstanceName("Producer");
        //producer.setVipChannelEnabled(false);
        /**
         * Producer对象在使用之前必须要调用start初始化,初始化一次即可<br>
         * 注意:切记不可以在每次发送消息时,都调用start方法
         */
        try {
            producer.start();
        } catch (MQClientException e) {
            e.printStackTrace();
        }
        for (int i = 0; i < 10; i++) {
            try {
                /**
                 * 下面这段代码表明一个Producer对象可以发送多个topic,多个tag的消息。
                 * 注意:send方法是同步调用,只要不抛异常就标识成功。但是发送成功也可会有多种状态,<br>
                 * 例如消息写入Master成功,但是Slave不成功,这种情况消息属于成功,但是对于个别应用如果对消息可靠性要求极高,<br>
                 * 需要对这种情况做处理。另外,消息可能会存在发送失败的情况,失败重试由应用来处理。
                 */
                {
                    Message msg = new Message("TopicTest1",// topic
                            "TagA",// tag
                            "OrderID001",// key
                            ("按一下").getBytes());// body
                    SendResult sendResult = producer.send(msg);
                    System.out.println("按一下:"+sendResult);
                }

                {
                    Message msg = new Message("TopicTest2",
                            "TagB",
                            "OrderID001",
                            ("Hello MetaQ TagB".getBytes()));

                    SendResult sendResult = producer.send(msg);
                    System.out.println("Hello MetaQ TagB"+sendResult);
                }

                {
                    Message msg = new Message("TopicTest3",
                            "TagC",
                            "OrderID001",
                            ("Hello MetaQ TagC").getBytes());

                    SendResult sendResult = producer.send(msg);
                    System.out.println("Hello MetaQ TagC"+sendResult);
                }

                TimeUnit.MILLISECONDS.sleep(1000);

            } catch (MQClientException e) {
                e.printStackTrace();
            } catch (InterruptedException e) {
                e.printStackTrace();
            } catch (RemotingException e) {
                e.printStackTrace();
            } catch (MQBrokerException e) {
                e.printStackTrace();
            }
        }
        /**
         * 应用退出时,要调用shutdown来清理资源,关闭网络连接,从MetaQ服务器上注销自己
         * 注意:我们建议应用在JBOSS、Tomcat等容器的退出销毁方法里调用shutdown方法
         */
        producer.shutdown();
    }
}