【MQTT】Mosquitto的安装与使用流水记

最近使用MQTT，安装Mosquitto试一下，并记录下来。

软件准备

从官网获取安装包：

wget http://mosquitto.org/files/source/mosquitto-1.4.14.tar.gz

还需要安装一些依赖的软件，我的机器目前缺少的软件（你的机器可能缺少的更多）：

yum install libuuid-devel

安装

tar -zxvf mosquitto-1.4.14.tar.gz
cd /third_pkg/mosquitto-1.4.14

修改配置文件/third_pkg/mosquitto-1.4.14/config.mk的WITH_SRV:=yes为no。

make
make install

启动

查下命令在哪里：

[root@localhost mosquitto-1.4.14]# whereis mosquitto
mosquitto: /etc/mosquitto /usr/local/sbin/mosquitto

启动：

[root@localhost mosquitto-1.4.14]# /usr/local/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf
1501414546: mosquitto version 1.4.14 (build date 2017-07-30 19:32:01+0800) starting
1501414546: Using default config.
1501414546: Opening ipv4 listen socket on port 1883.
1501414546: Opening ipv6 listen socket on port 1883.
1501414546: Error: Invalid user 'mosquitto'.

发现无此用户，启动失败，就添加此用户adduser mosquitto，然后再次启动。

测试

消费者

启动一个消费者：

/usr/local/bin/mosquitto_sub -h 127.0.0.1 -t myqueue

生产者

使用生产者发送一个消息：

mosquitto_pub -h 127.0.0.1 -t myqueue -m "hello world"

Java客户端

依赖包

    <dependencies>
        <dependency>
            <groupId>org.springframework.webflow</groupId>
            <artifactId>spring-webflow</artifactId>
            <version>2.3.4.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.integration</groupId>
            <artifactId>spring-integration-mqtt</artifactId>
            <version>4.1.0.RELEASE</version>
            <exclusions>
                <exclusion>
                    <groupId>org.eclipse.paho</groupId>
                    <artifactId>mqtt-client</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.eclipse.paho</groupId>
            <artifactId>org.eclipse.paho.client.mqttv3</artifactId>
            <version>1.1.0</version>
        </dependency>
    </dependencies>

公共配置

连接工厂：

<?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"
    xmlns:int="http://www.springframework.org/schema/integration"
    xmlns:int-mqtt="http://www.springframework.org/schema/integration/mqtt"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration-4.1.xsd
    http://www.springframework.org/schema/integration/mqtt http://www.springframework.org/schema/integration/mqtt/spring-integration-mqtt-4.1.xsd">

    <!-- 客户端工厂 -->
    <bean id="clientFactory"
        class="org.springframework.integration.mqtt.core.DefaultMqttPahoClientFactory">
    </bean>
    
</beans>

生产者

生产者的配置文件：

<?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"
    xmlns:int="http://www.springframework.org/schema/integration"
    xmlns:int-mqtt="http://www.springframework.org/schema/integration/mqtt"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration-4.1.xsd
    http://www.springframework.org/schema/integration/mqtt http://www.springframework.org/schema/integration/mqtt/spring-integration-mqtt-4.1.xsd">

    <!-- Spring中引入公共配置文件 -->
    <import resource="classpath:spring-integration-mqtt-common.xml" />
    
    <bean id="mqttPahoMessageHandler" class="org.springframework.integration.mqtt.outbound.MqttPahoMessageHandler" >  
        <constructor-arg name="url" value="tcp://192.168.1.101:1883"></constructor-arg>  
        <constructor-arg name="clientId" value="CLIENT_001"></constructor-arg>  
        <constructor-arg name="clientFactory" ref="clientFactory"></constructor-arg>  
    </bean>

</beans>

生产者：

package com.nicchagil.springintegrationmqttexervice;

import java.util.concurrent.TimeUnit;
import java.util.logging.Logger;

import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.integration.mqtt.outbound.MqttPahoMessageHandler;
import org.springframework.integration.mqtt.support.MqttHeaders;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.messaging.Message;

public class Producer {
    
    private static Logger logger = Logger.getLogger("Producer");

    public static void main(String[] args) {
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"spring-integration-mqtt-producer.xml"});
        MqttPahoMessageHandler mqttPahoMessageHandler = context.getBean("mqttPahoMessageHandler", MqttPahoMessageHandler.class);
        
        for (int i = 1; i < 10; i++) {
            send(mqttPahoMessageHandler, "hello world " + i);
            
            try {
                TimeUnit.SECONDS.sleep(3);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }
    
    private static void send(MqttPahoMessageHandler mqttPahoMessageHandler, String payload) {
        Message<String> message = MessageBuilder.withPayload(payload)
                .setHeader(MqttHeaders.TOPIC, "myqueue")
                .setHeader(MqttHeaders.RETAINED, true)
                // .setHeader(MqttHeaders.DUPLICATE, true)
                .build();
        mqttPahoMessageHandler.handleMessage(message);
        logger.info("发送成功：" + message);
    }

}

消费者

消费者配置文件：

<?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"
    xmlns:int="http://www.springframework.org/schema/integration"
    xmlns:int-mqtt="http://www.springframework.org/schema/integration/mqtt"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration-4.1.xsd
    http://www.springframework.org/schema/integration/mqtt http://www.springframework.org/schema/integration/mqtt/spring-integration-mqtt-4.1.xsd">

    <!-- Spring中引入公共配置文件 -->
    <import resource="classpath:spring-integration-mqtt-common.xml" />

    <!-- 消息适配器 -->
    <int-mqtt:message-driven-channel-adapter id="mqttInbound" client-id="CLIENT_002" url="tcp://192.168.1.101:1883"
        topics="myqueue" qos="1" client-factory="clientFactory"
        auto-startup="true" send-timeout="12" channel="myChannel" />

    <!-- 频道 -->
    <int:channel id="myChannel" />

    <!-- 消息处理激活类 -->
    <int:service-activator id="myServiceActivator"
        input-channel="myChannel" ref="myConsumer" method="consumerForBusiness" />

    <!-- 消息处理业务类 -->
    <bean id="myConsumer" class="com.nicchagil.springintegrationmqttexervice.MyConsumer" />

</beans>

消费者业务：

package com.nicchagil.springintegrationmqttexervice;

import java.util.Random;
import java.util.concurrent.TimeUnit;
import java.util.logging.Logger;

public class MyConsumer {
    
    Logger logger = Logger.getLogger("MyConsumer");

    public void consumerForBusiness(String message) {
        logger.info("开始处理：" + message);
        
        int random = new Random().nextInt(2); // 这里只测试0、1两种情况。TODO 2即抛出异常的情况需另外处理
        if (random == 0) {
            logger.info("模拟业务正常完成");
            
        } else if (random == 1) {
            logger.info("模拟处理业务需时一段时间");
            try {
                TimeUnit.SECONDS.sleep(10);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            
        } else if (random == 2) {
            logger.info("模拟抛出异常");
            throw new RuntimeException("模拟抛出异常");
            
        }
        
        logger.info("完成处理：" + message);
    }

}

启动消费者：

package com.nicchagil.springintegrationmqttexervice;

import java.io.IOException;

import org.springframework.context.support.ClassPathXmlApplicationContext;


public class Boot {

    public static void main(String[] args) throws IOException {
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"spring-integration-mqtt-consumer.xml"});
        context.start();
        
        System.in.read();
    }

}

运行结果

生产者日志：

七月 31, 2017 12:30:28 上午 com.nicchagil.springintegrationmqttexervice.Producer send
信息: 发送成功：GenericMessage [payload=hello world 1, headers={mqtt_retained=true, id=1f6aa8be-9346-ec9b-9b82-9cc755e2d79b, mqtt_topic=myqueue, timestamp=1501432228351}]
七月 31, 2017 12:30:31 上午 com.nicchagil.springintegrationmqttexervice.Producer send
信息: 发送成功：GenericMessage [payload=hello world 2, headers={mqtt_retained=true, id=473c3a83-93f9-37fa-2857-ab430f96b12b, mqtt_topic=myqueue, timestamp=1501432231434}]
七月 31, 2017 12:30:34 上午 com.nicchagil.springintegrationmqttexervice.Producer send
信息: 发送成功：GenericMessage [payload=hello world 3, headers={mqtt_retained=true, id=82ef81ec-2ec1-952e-8bef-fba0d2287bda, mqtt_topic=myqueue, timestamp=1501432234437}]

消费者日志：

七月 31, 2017 12:30:28 上午 com.nicchagil.springintegrationmqttexervice.MyConsumer consumerForBusiness
信息: 开始处理：hello world 1
七月 31, 2017 12:30:28 上午 com.nicchagil.springintegrationmqttexervice.MyConsumer consumerForBusiness
信息: 模拟业务正常完成
七月 31, 2017 12:30:28 上午 com.nicchagil.springintegrationmqttexervice.MyConsumer consumerForBusiness
信息: 完成处理：hello world 1
七月 31, 2017 12:30:31 上午 com.nicchagil.springintegrationmqttexervice.MyConsumer consumerForBusiness
信息: 开始处理：hello world 2
七月 31, 2017 12:30:31 上午 com.nicchagil.springintegrationmqttexervice.MyConsumer consumerForBusiness
信息: 模拟业务正常完成
七月 31, 2017 12:30:31 上午 com.nicchagil.springintegrationmqttexervice.MyConsumer consumerForBusiness
信息: 完成处理：hello world 2
七月 31, 2017 12:30:34 上午 com.nicchagil.springintegrationmqttexervice.MyConsumer consumerForBusiness
信息: 开始处理：hello world 3
七月 31, 2017 12:30:34 上午 com.nicchagil.springintegrationmqttexervice.MyConsumer consumerForBusiness
信息: 模拟处理业务需时一段时间
七月 31, 2017 12:30:44 上午 com.nicchagil.springintegrationmqttexervice.MyConsumer consumerForBusiness
信息: 完成处理：hello world 3