原文：https://blog.csdn.net/ctwy291314/article/details/80534604

 

RabbitMQ安装请参照

不啰嗦直接上代码

目录结构如下：

pom.xml

1.  
   <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
2.  
   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
3.  
   <modelVersion>4.0.0</modelVersion>
4.  
    
5.  
   <groupId>com.test</groupId>
6.  
   <artifactId>RabbitMQ_MQTT</artifactId>
7.  
   <version>0.0.1-SNAPSHOT</version>
8.  
   <packaging>jar</packaging>
9.  
    
10.  
    <name>RabbitMQ_MQTT</name>
11.  
    <url>http://maven.apache.org</url>
12.  
     
13.  
    <parent>
14.  
    <groupId>org.springframework.boot</groupId>
15.  
    <artifactId>spring-boot-starter-parent</artifactId>
16.  
    <version>1.5.6.RELEASE</version>
17.  
    <relativePath /> <!-- lookup parent from repository -->
18.  
    </parent>
19.  
     
20.  
    <properties>
21.  
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
22.  
    <java.version>1.8</java.version>
23.  
    </properties>
24.  
     
25.  
    <dependencies>
26.  
    <dependency>
27.  
    <groupId>org.springframework.boot</groupId>
28.  
    <artifactId>spring-boot-starter</artifactId>
29.  
    </dependency>
30.  
    <dependency>
31.  
    <groupId>org.springframework.boot</groupId>
32.  
    <artifactId>spring-boot-starter-test</artifactId>
33.  
    <scope>test</scope>
34.  
    </dependency>
35.  
     
36.  
    <dependency>
37.  
    <groupId>org.springframework.boot</groupId>
38.  
    <artifactId>spring-boot-starter-amqp</artifactId>
39.  
    </dependency>
40.  
    <dependency>
41.  
    <groupId>org.springframework.boot</groupId>
42.  
    <artifactId>spring-boot-devtools</artifactId>
43.  
    <optional>true</optional>
44.  
    </dependency>
45.  
    <dependency>
46.  
    <groupId>org.springframework.boot</groupId>
47.  
    <artifactId>spring-boot-starter-web</artifactId>
48.  
    </dependency>
49.  
    <!-- <dependency> <groupId>org.fusesource.mqtt-client</groupId> <artifactId>mqtt-client</artifactId>
50.  
    <version>1.12</version> </dependency> -->
51.  
    </dependencies>
52.  
    <build>
53.  
    <plugins>
54.  
    <plugin>
55.  
    <groupId>org.springframework.boot</groupId>
56.  
    <artifactId>spring-boot-maven-plugin</artifactId>
57.  
    <configuration>
58.  
    <fork>true</fork>
59.  
    </configuration>
60.  
    </plugin>
61.  
    </plugins>
62.  
    </build>
63.  
     
64.  
     
65.  
    </project>

application.properties

1.  
   servier.port=

   8080
2.  
    
3.  
    
4.  
   spring.rabbitmq.queues=topic.1,mqtt.test.*,mqtt.test.dd
5.  
   spring.rabbitmq.host=

   127.0.0.1
6.  
   spring.rabbitmq.port=

   5672
7.  
   spring.rabbitmq.username=guest
8.  
   spring.rabbitmq.password=guest
9.  
   spring.rabbitmq.publisher-confirms=

   true
10.  
    spring.rabbitmq.virtual-host=/

Application.java

1.  
   package com.gm;
2.  
    
3.  
   import org.springframework.beans.factory.annotation.Autowired;
4.  
   import org.springframework.boot.SpringApplication;
5.  
   import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
6.  
   import org.springframework.boot.autoconfigure.SpringBootApplication;
7.  
   import org.springframework.context.annotation.ComponentScan;
8.  
   import org.springframework.context.annotation.Configuration;
9.  
   import org.springframework.web.bind.annotation.PostMapping;
10.  
    import org.springframework.web.bind.annotation.RequestMapping;
11.  
    import org.springframework.web.bind.annotation.RestController;
12.  
     
13.  
    import com.gm.rabbit.CallBackSender;
14.  
     
15.  
    @Configuration
16.  
    @RestController
17.  
    @EnableAutoConfiguration
18.  
    @ComponentScan
19.  
    @SpringBootApplication
20.  
    public class Application {
21.  
     
22.  
    @Autowired
23.  
    private CallBackSender sender;
24.  
     
25.  
    public static void main(String[] args) {
26.  
    SpringApplication.run(Application.class, args);
27.  
    }
28.  
     
29.  
    @RequestMapping("/callback")
30.  
    public void callbak() {
31.  
    sender.send(

    "topic.baqgl.admin.1", "测试消息");
32.  
    }
33.  
    }

RabbitConfig.java

1.  
   package com.gm.rabbit;
2.  
    
3.  
   import java.util.ArrayList;
4.  
   import java.util.List;
5.  
    
6.  
   import org.springframework.amqp.core.AcknowledgeMode;
7.  
   import org.springframework.amqp.core.Binding;
8.  
   import org.springframework.amqp.core.BindingBuilder;
9.  
   import org.springframework.amqp.core.DirectExchange;
10.  
    import org.springframework.amqp.core.Message;
11.  
    import org.springframework.amqp.core.Queue;
12.  
    import org.springframework.amqp.core.TopicExchange;
13.  
    import org.springframework.context.annotation.Bean;
14.  
    import org.springframework.context.annotation.Configuration;
15.  
    import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
16.  
    import org.springframework.amqp.rabbit.connection.ConnectionFactory;
17.  
    import org.springframework.amqp.rabbit.core.ChannelAwareMessageListener;
18.  
    import org.springframework.amqp.rabbit.core.RabbitTemplate;
19.  
    import org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer;
20.  
    import org.springframework.beans.factory.annotation.Value;
21.  
    import org.springframework.beans.factory.config.ConfigurableBeanFactory;
22.  
    import org.springframework.context.annotation.Scope;
23.  
     
24.  
    @Configuration
25.  
    public class RabbitConfig {
26.  
     
27.  
    @Value("${spring.rabbitmq.host}")
28.  
    private String addresses;
29.  
     
30.  
    @Value("${spring.rabbitmq.port}")
31.  
    private String port;
32.  
     
33.  
    @Value("${spring.rabbitmq.username}")
34.  
    private String username;
35.  
     
36.  
    @Value("${spring.rabbitmq.password}")
37.  
    private String password;
38.  
     
39.  
    @Value("${spring.rabbitmq.virtual-host}")
40.  
    private String virtualHost;
41.  
     
42.  
    @Value("${spring.rabbitmq.publisher-confirms}")
43.  
    private boolean publisherConfirms;
44.  
     
45.  
    @Value("${spring.rabbitmq.queues}")
46.  
    private String queues;
47.  
     
48.  
    final static String EXCHANGE_NAME = "amq.topic";
49.  
    final static String QUEUE_NAME = "topic.baqgl.*.*";
50.  
    final static String ROUTING_KEY = "topic.baqgl.#";
51.  
     
52.  
    @Bean
53.  
    public ConnectionFactory connectionFactory() {
54.  
     
55.  
    CachingConnectionFactory connectionFactory =

    new CachingConnectionFactory();
56.  
    connectionFactory.setAddresses(addresses +

    ":" + port);
57.  
    connectionFactory.setUsername(username);
58.  
    connectionFactory.setPassword(password);
59.  
    connectionFactory.setVirtualHost(virtualHost);
60.  
    /** 如果要进行消息回调，则这里必须要设置为true */
61.  
    connectionFactory.setPublisherConfirms(publisherConfirms);
62.  
    return connectionFactory;
63.  
    }
64.  
     
65.  
    @Bean
66.  
    /** 因为要设置回调类，所以应是prototype类型，如果是singleton类型，则回调类为最后一次设置 */
67.  
    @Scope(ConfigurableBeanFactory.SCOPE_PROTOTYPE)
68.  
    public RabbitTemplate rabbitTemplate() {
69.  
    RabbitTemplate template =

    new RabbitTemplate(connectionFactory());
70.  
    return template;
71.  
    }
72.  
     
73.  
    @Bean
74.  
    TopicExchange exchange() {
75.  
    return new TopicExchange(EXCHANGE_NAME);
76.  
    }
77.  
     
78.  
    @Bean
79.  
    public Queue queue() {
80.  
    return new Queue(QUEUE_NAME, true);
81.  
    }
82.  
     
83.  
    @Bean
84.  
    public Binding binding() {
85.  
    return BindingBuilder.bind(queue()).to(exchange()).with(ROUTING_KEY);
86.  
    }
87.  
     
88.  
     
89.  
    @Bean
90.  
    public SimpleMessageListenerContainer messageContainer() {
91.  
    /*Queue[] q = new Queue[queues.split(",").length];
92.  
    for (int i = 0; i < queues.split(",").length; i++) {
93.  
    q[i] = new Queue(queues.split(",")[i]);
94.  
    }*/
95.  
    SimpleMessageListenerContainer container =

    new SimpleMessageListenerContainer(connectionFactory());
96.  
    container.setQueues(queue());
97.  
    container.setExposeListenerChannel(

    true);
98.  
    container.setMaxConcurrentConsumers(

    1);
99.  
    container.setConcurrentConsumers(

    1);
100.  
     container.setAcknowledgeMode(AcknowledgeMode.MANUAL);
101.  
     container.setMessageListener(

     new ChannelAwareMessageListener() {
102.  
      
103.  
     public void onMessage(Message message, com.rabbitmq.client.Channel channel) throws Exception {
104.  
     try {
105.  
     System.out.println(
106.  
     "消费端接收到消息:" + message.getMessageProperties() + ":" + new String(message.getBody()));
107.  
     System.out.println(

     "topic:"+message.getMessageProperties().getReceivedRoutingKey());
108.  
     // deliveryTag是消息传送的次数，我这里是为了让消息队列的第一个消息到达的时候抛出异常，处理异常让消息重新回到队列，然后再次抛出异常，处理异常拒绝让消息重回队列
109.  
     /*if (message.getMessageProperties().getDeliveryTag() == 1
110.  
     || message.getMessageProperties().getDeliveryTag() == 2) {
111.  
     throw new Exception();
112.  
     }*/
113.  
      
114.  
     channel.basicAck(message.getMessageProperties().getDeliveryTag(),

     false); // false只确认当前一个消息收到，true确认所有consumer获得的消息
115.  
     }

     catch (Exception e) {
116.  
     e.printStackTrace();
117.  
      
118.  
     if (message.getMessageProperties().getRedelivered()) {
119.  
     System.out.println(

     "消息已重复处理失败,拒绝再次接收...");
120.  
     channel.basicReject(message.getMessageProperties().getDeliveryTag(),

     true); // 拒绝消息
121.  
     }

     else {
122.  
     System.out.println(

     "消息即将再次返回队列处理...");
123.  
     channel.basicNack(message.getMessageProperties().getDeliveryTag(),

     false, true); // requeue为是否重新回到队列
124.  
     }
125.  
     }
126.  
     }
127.  
     });
128.  
     return container;
129.  
     }
130.  
      
131.  
     }

CallBackSender.java

1.  
   package com.gm.rabbit;
2.  
    
3.  
   import java.util.UUID;
4.  
   import org.springframework.amqp.rabbit.core.RabbitTemplate;
5.  
   import org.springframework.amqp.rabbit.support.CorrelationData;
6.  
   import org.springframework.beans.factory.annotation.Autowired;
7.  
   import org.springframework.stereotype.Component;
8.  
    
9.  
   @Component
10.  
    public class CallBackSender implements RabbitTemplate.ConfirmCallback {
11.  
    @Autowired
12.  
    private RabbitTemplate rabbitTemplate;
13.  
     
14.  
    public void send(String topic, String message) {
15.  
    rabbitTemplate.setConfirmCallback(

    this);
16.  
    CorrelationData correlationData =

    new CorrelationData(UUID.randomUUID().toString());
17.  
     
18.  
    System.out.println(

    "消息id:" + correlationData.getId());
19.  
    //用RabbitMQ发送MQTT需将exchange配置为amq.topic
20.  
    this.rabbitTemplate.convertAndSend("amq.topic", topic, message, correlationData);
21.  
    }
22.  
     
23.  
    public void confirm(CorrelationData correlationData, boolean ack, String cause) {
24.  
    System.out.println(

    "消息id:" + correlationData.getId());
25.  
    if (ack) {
26.  
    System.out.println(

    "消息发送确认成功");
27.  
    }

    else {
28.  
    System.out.println(

    "消息发送确认失败:" + cause);
29.  
    }
30.  
    }
31.  
    }

ApplicationTests.java

1.  
   package com.gm;
2.  
    
3.  
   import org.junit.Test;
4.  
   import org.junit.runner.RunWith;
5.  
   import org.springframework.boot.test.context.SpringBootTest;
6.  
   import org.springframework.test.context.junit4.SpringRunner;
7.  
    
8.  
   @RunWith(SpringRunner.class)
9.  
   @SpringBootTest
10.  
    public class ApplicationTests {
11.  
     
12.  
    @Test
13.  
    public void contextLoads() {
14.  
    System.out.println(

    "hello world");
15.  
    }
16.  
     
17.  
    }

TopicTest.java

1.  
   package com.gm.rabbit;
2.  
    
3.  
   import org.junit.Test;
4.  
   import org.junit.runner.RunWith;
5.  
   import org.springframework.beans.factory.annotation.Autowired;
6.  
   import org.springframework.boot.test.context.SpringBootTest;
7.  
   import org.springframework.test.context.junit4.SpringRunner;
8.  
    
9.  
   @RunWith(SpringRunner.class)
10.  
    @SpringBootTest
11.  
    public class TopicTest {
12.  
     
13.  
    @Autowired
14.  
    private CallBackSender sender;
15.  
     
16.  
    @Test
17.  
    public void topic() throws Exception {
18.  
    sender.send(

    "topic.baqgl.admin.1", "测试消息");
19.  
    }
20.  
    }

本文选择的是RabbitMQ集成MQTT，并实现消息持久化，如不需要集成MQTT只需修改RabbitConfig.java中的EXCHANGE_NAME即可。

集成MQTT相关配置：

创建用户：

1.  
   创建账号
2.  
   rabbitmqctl add_user admin

   123456
3.  
   设置用户角色
4.  
   rabbitmqctl set_user_tags admin administrator
5.  
   设置用户权限
6.  
   rabbitmqctl set_permissions -p

   "/" admin ".*" ".*" ".*"
7.  
   设置完成后可以查看当前用户和角色(需要开启服务)
8.  
   rabbitmqctl list_users

安装插件：

1.  
   rabbitmq-plugins enable rabbitmq_management
2.  
   rabbitmq-plugins enable rabbitmq_mqtt

默认配置。window下，rabbitmq的配置文件在C:\Users\Administrator\AppData\Roaming\RabbitMQ下。没配置的情况下，采用如下配置：

1.  
   [{rabbit, [{tcp_listeners, [

   5672]}]},
2.  
   {rabbitmq_mqtt, [{default_user, <<

   "admin">>},
3.  
   {default_pass, <<

   "123456">>},
4.  
   {allow_anonymous,

   true},
5.  
   {vhost, <<

   "/">>},
6.  
   {exchange, <<

   "amq.topic">>},
7.  
   {subscription_ttl,

   1800000},
8.  
   {prefetch,

   10},
9.  
   {ssl_listeners, []},
10.  
    %% Default MQTT with TLS port is

    8883
11.  
    %% {ssl_listeners, [

    8883]}
12.  
    {tcp_listeners, [

    1883]},
13.  
    {tcp_listen_options, [{backlog,

    128},
14.  
    {nodelay,

    true}]}]}
15.  
    ].