Linux下RocketMQ下载安装教程以及RocketMQ使用教程和代码

其他 2020-05-02 11:49:21 阅读次数: 0

一、安装及启动

1、将zip文件上传到linux的~下，然后解压：

执行：unzip rocketmq-all-4.4.0-bin-release.zip，若unzip命令不存在，执行：yum install -y unzip zip

2、移动并重命名

执行：mv rocketmq-all-4.4.0-bin-release /usr/local/rocketmq 

3、进入/usr/local/rocketmq/bin目录下

执行：cd /usr/local/rocketmq/bin

4、如果是在真实的linux服务器上安装rocketmq，则内存是足够的，如果是在虚拟机上安装rocketmq进行学习用，可能虚拟机的内存只分配了1G，那么是不够用的。启动rocketmq可能会启动不成功。此时就先修改一下启动所需的内存参数。

（1）修改runserver.sh 

执行：vi runserver.sh

将其内存修改为128m并保存，如下：

（2）修改runbroker.sh

同理将其修改为128m（与修改runserver.sh一样）

5、启动nameserver,在bin目录下执行：nohup sh mqnamesrv &，查看启动是否成功的日志命令：tail -f ~/logs/rocketmqlogs/namesrv.log ，打印如下表示启动成功：

6、启动broker，在bin目录下执行：nohup sh mqbroker -n localhost:9876 & ，也可以 nohup sh mqbroker -c ../conf/broker.conf  -n 192.168.153.128:9876 autoCreateTopicEnable=true &  
这样启动的服务器可以自动创建主题（客户端）,不过生产一般不推荐.

查看日志命令：tail -f ~/logs/rocketmqlogs/broker.log，打印如下表示启动成功：

三、安装可视化插件

1、下载地址：https://pan.baidu.com/s/16ZoOkYEBtNq1sGp0cuk3cA  提取码：ms2g

2、上传到linux自己指定一个目录并使用unzip命令解压（步骤略，可参考上面rocketmq的上传解压步骤）

3、进入rocketmq-console/src/main/resources目录下，打开application.properties并修改保存如下：

4、进入‘\rocketmq-externals\rocketmq-console’文件夹，执行‘mvn clean package -Dmaven.test.skip=true’，编译生成，该过程耗时较长，最终生成成功后如下：

5、便已完成，会生成target目录，进入target目录后执行：java -jar rocketmq-console-ng-1.0.1.jar，启动完成后，

在浏览器输入：http://192.168.153.128:9876,出现如下界面

完毕！

生产者代码

MyProducer.java

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.alibaba.rocketmq.client.exception.MQClientException;
import com.alibaba.rocketmq.client.producer.DefaultMQProducer;

public class MyProducer {

private final Logger logger = LoggerFactory.getLogger(MyProducer.class);

private DefaultMQProducer defaultMQProducer;

private String producerGroup;

private String namesrvAddr;


/**

 * Spring bean init-method

 */
public void init() throws MQClientException {

// 参数信息

logger.info("DefaultMQProducer initialize!");

logger.info(producerGroup);

logger.info(namesrvAddr);

// 初始化

defaultMQProducer = new DefaultMQProducer(producerGroup);

defaultMQProducer.setNamesrvAddr(namesrvAddr);

defaultMQProducer.setInstanceName(String.valueOf(System.currentTimeMillis()));


defaultMQProducer.start();

System.out.println("DefaultMQProudcer start success!");

}

/**

 * Spring bean destroy-method

 */

public void destroy() {

defaultMQProducer.shutdown();

}

public DefaultMQProducer getDefaultMQProducer() {

return defaultMQProducer;

}

// ---------------setter -----------------

public void setProducerGroup(String producerGroup) {

this.producerGroup = producerGroup;

}

public void setNamesrvAddr(String namesrvAddr) {

this.namesrvAddr = namesrvAddr;

}

}

消费者代码

MyConsumer .java


import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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 com.alibaba.rocketmq.common.protocol.heartbeat.MessageModel;
public class MyConsumer {

	private final Logger logger = LoggerFactory.getLogger(MyConsumer.class);
	    
	private DefaultMQPushConsumer defaultMQPushConsumer;

	private String namesrvAddr;
	    
	private String consumerGroup;

	    /**
		 * 
		 *      * Spring bean init-method
		 * 
		 *      
		 */
	public void init() throws InterruptedException, MQClientException {

        // 参数信息

        logger.debug("DefaultMQPushConsumer initialize!");

        logger.debug(consumerGroup);

        logger.debug(namesrvAddr);

        // 一个应用创建一个Consumer，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：ConsumerGroupName需要由应用来保证唯一

        defaultMQPushConsumer = new DefaultMQPushConsumer(consumerGroup);

        defaultMQPushConsumer.setNamesrvAddr(namesrvAddr);

        defaultMQPushConsumer.setInstanceName(String.valueOf(System.currentTimeMillis()));

        // 订阅指定MyTopic下tags等于MyTag

        defaultMQPushConsumer.subscribe("MyTopic", "MyTag");

        // 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

        defaultMQPushConsumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);

        // 设置为集群消费(区别于广播消费)

        defaultMQPushConsumer.setMessageModel(MessageModel.CLUSTERING);

        defaultMQPushConsumer.registerMessageListener(new MessageListenerConcurrently() {


            // 默认msgs里只有一条消息，可以通过设置consumeMessageBatchMaxSize参数来批量接收消息

            @Override

            public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> msgs, ConsumeConcurrentlyContext context) {



                MessageExt msg = msgs.get(0);

                if (msg.getTopic().equals("MyTopic")) {

                    // TODO 执行Topic的消费逻辑

                 System.out.println("接收到了消息啊=========="+msg.toString());

                    if (msg.getTags() != null && msg.getTags().equals("MyTag")) {

                        // TODO 执行Tag的消费
                    }

                }
                // 如果没有return success ，consumer会重新消费该消息，直到return success

                return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
            }

        });
        // 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>

        defaultMQPushConsumer.start();

        logger.debug("DefaultMQPushConsumer start success!");

    }   	   
	/**
	  *  Spring bean destroy-method
	  *      
	  */

	public void destroy() {

        defaultMQPushConsumer.shutdown();

    }
	    // ----------------- setter --------------------

	public void setNamesrvAddr(String namesrvAddr) {

        this.namesrvAddr = namesrvAddr;

    }

	public void setConsumerGroup(String consumerGroup) {

        this.consumerGroup = consumerGroup;

    }

}

生产者配置文件producer.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans

       http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

       http://www.springframework.org/schema/tx

       http://www.springframework.org/schema/tx/spring-tx-3.0.xsd

       http://www.springframework.org/schema/jee

      http://www.springframework.org/schema/jee/spring-jee-3.0.xsd

      http://www.springframework.org/schema/context

       http://www.springframework.org/schema/context/spring-context-3.0.xsd">

 <bean id="myProducer" class="net.sinolbs.rocketmq.MyProducer" init-method="init"         
    destroy-method="destroy" scope="singleton">

    <property name="producerGroup" value="MyProducerGroup" />

    <property name="namesrvAddr" value="127.0.0.1:9876" />

 </bean>

</beans>

消费者配置文件：consumer.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"                 
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans

       http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

       http://www.springframework.org/schema/tx

       http://www.springframework.org/schema/tx/spring-tx-3.0.xsd

       http://www.springframework.org/schema/jee

      http://www.springframework.org/schema/jee/spring-jee-3.0.xsd

      http://www.springframework.org/schema/context

       http://www.springframework.org/schema/context/spring-context-3.0.xsd">

<bean class="net.sinolbs.test.rocketmq.MyConsumer" init-method="init"

destroy-method="destroy" scope="singleton">

<property name="consumerGroup" value="MyConsumerGroup" />

<property name="namesrvAddr" value="127.0.0.1:9876" />

</bean>

</beans>

然后将这两个xml导入到spring的配置文件里

<import resource="classpath:rocketmq/producer.xml" />
<import resource="classpath:rocketmq/consumer.xml" />

到此就可以使用了。

rocketMq发送端代码：

package com.wechat.tool;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.alibaba.rocketmq.client.exception.MQClientException;
import com.alibaba.rocketmq.client.producer.DefaultMQProducer;

public class RocketMqProducer {

    private final Logger logger = LoggerFactory.getLogger(RocketMqProducer.class);

    private DefaultMQProducer defaultMQProducer;
    private String producerGroup;
    private String namesrvAddr;

    /**
     * Spring bean init-method
     */
    public void init() throws MQClientException {
        // 参数信息
        logger.info("DefaultMQProducer initialize!");
        logger.info(producerGroup);
        logger.info(namesrvAddr);

        // 初始化
        defaultMQProducer = new DefaultMQProducer(producerGroup);
        defaultMQProducer.setNamesrvAddr(namesrvAddr);
        defaultMQProducer.setInstanceName(String.valueOf(System.currentTimeMillis()));
        
        defaultMQProducer.start();

        logger.info("DefaultMQProudcer start success!");

    }

    /**
     * Spring bean destroy-method
     */
    public void destroy() {
        defaultMQProducer.shutdown();
    }

    public DefaultMQProducer getDefaultMQProducer() {
        return defaultMQProducer;
    }

    // ---------------setter -----------------

    public void setProducerGroup(String producerGroup) {
        this.producerGroup = producerGroup;
    }

    public void setNamesrvAddr(String namesrvAddr) {
        this.namesrvAddr = namesrvAddr;
    }

}

该对象的实例初始化与销毁都是由spring来控制，RocketMqProducer需要保持单例，主要是由spring配置文件控制，下面是RocketMqProducer相关配置

<bean id="rocketMqProducer" class="com.wechat.tool.RocketMqProducer"
     init-method="init"   destroy-method="destroy" scope="singleton">
    <property name="producerGroup" value="PushConsumer" />
    <property name="namesrvAddr" value="127.0.0.1:9876" />
</bean>

springmvc控制层这块主要调用RocketMqProducer单例对象，对RocketMq进行消息队列的发送，下列只列出部分控制层代码

@Autowired
private RocketMqProducer rocketMqProducer;


@RequestMapping(value = "/coupon/couponsend.htm")
@ResponseBody()
public Map<String,String> couponsend(){
String sendStatus ="";
String msgId ="";
try{

String msgtext="优惠券领取"+DTUtil.getTodayString4();
Message msg = new Message("PushTopic",   
"push",   
"coupon"+DTUtil.getNowLongTime(),   
msgtext.getBytes());  
          
SendResult result = rocketMqProducer.getDefaultMQProducer().send(msg);
System.out.println("id:" + result.getMsgId() +  
                    " result:" + result.getSendStatus());
msgId = result.getMsgId();
sendStatus=result.getSendStatus()+"";
}catch (Exception e) {
e.printStackTrace();
}
Map<String,String> m=new HashMap<String, String>();
m.put("sendStatus", sendStatus);
m.put("msgId", msgId);
return m;
}

rocketMq消费者端：

package com.wechat.test;

import java.util.List;  
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.consumer.ConsumeFromWhere;  
import com.alibaba.rocketmq.common.message.Message;  
import com.alibaba.rocketmq.common.message.MessageExt;

public class PushConsumer {
public static void main(String[] args){  
        DefaultMQPushConsumer consumer =   
                new DefaultMQPushConsumer("PushConsumer");  
        consumer.setNamesrvAddr("127.0.0.1:9876");   
        try {  
            //订阅PushTopic下Tag为push的消息  
            consumer.subscribe("PushTopic", "push");  
            //程序第一次启动从消息队列头取数据  
            consumer.setConsumeFromWhere(  
                    ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);  
            consumer.registerMessageListener(  
                new MessageListenerConcurrently() {  
                    public ConsumeConcurrentlyStatus consumeMessage(  
                            List<MessageExt> list,  
                            ConsumeConcurrentlyContext Context) {  
                        Message msg = list.get(0);  
                        System.out.println(msg.getKeys());  
                        return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;  
                    }  
                }  
            );  
            consumer.start();  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
    }
}

消费者开启后就不用关闭

Uncle_Mo
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