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RabbitMQ工作模式以及java代码实现_mq java最佳实现

作者：知新_RL | 2024-04-08 08:53:27

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mq java最佳实现

四种模式通用的内容

 <dependency>
            <groupId>com.rabbitmq</groupId>
            <artifactId>amqp-client</artifactId>
            <version>5.3.0</version>
    </dependency>
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封装连接工具类

public class RabbitUtils {
    private static ConnectionFactory connectionFactory = new ConnectionFactory();
    static {
        connectionFactory.setHost("192.168.10.180");
        connectionFactory.setPort(5672);//5672是RabbitMQ的默认端口号
        connectionFactory.setUsername("lee_curry");
        connectionFactory.setPassword("leecurry");
        connectionFactory.setVirtualHost("baiqi");
    }
    public static Connection getConnection(){
        Connection conn = null;
        try {
            conn = connectionFactory.newConnection();
            return conn;
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}
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封装常量

public class RabbitConstant {
    public static final String QUEUE_HELLOWORLD = "helloworld";
    public static final String QUEUE_SMS = "sms";
    public static final String EXCHANGE_WEATHER = "weather";
    public static final String EXCHANGE_WEATHER_ROUTING = "weather_routing";
    public static final String QUEUE_BAIDU = "baidu";
    public static final String QUEUE_SINA = "sina";
    public static final String EXCHANGE_WEATHER_TOPIC = "weather_topic";
}
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第一种简单工作模式

在这里插入图片描述

下面展示一些 内联代码片。

生产者

public class Producer {

    public static void main(String[] args) throws IOException, TimeoutException {


        //获取TCP长连接
        Connection conn = RabbitUtils.getConnection();
        //创建通信“通道”，相当于TCP中的虚拟连接
        Channel channel = conn.createChannel();

        //创建队列,声明并创建一个队列，如果队列已存在，则使用这个队列
        //第一个参数：队列名称ID
        //第二个参数：是否持久化，false对应不持久化数据，MQ停掉数据就会丢失
        //第三个参数：是否队列私有化，false则代表所有消费者都可以访问，true代表只有第一次拥有它的消费者才能一直使用，其他消费者不让访问
        //第四个：是否自动删除,false代表连接停掉后不自动删除掉这个队列
        //其他额外的参数, null
        channel.queueDeclare(RabbitConstant.QUEUE_HELLOWORLD,false, false, false, null);

        String message = "hello白起666";
        //四个参数
        //exchange 交换机，暂时用不到，在后面进行发布订阅时才会用到
        //队列名称
        //额外的设置属性
        //最后一个参数是要传递的消息字节数组
        channel.basicPublish("", RabbitConstant.QUEUE_HELLOWORLD, null,message.getBytes());
        channel.close();
        conn.close();
        System.out.println("===发送成功===");

    }
}

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消费者

public class Consumer {

    public static void main(String[] args) throws IOException, TimeoutException {


        //获取TCP长连接
         Connection conn = RabbitUtils.getConnection();
        //创建通信“通道”，相当于TCP中的虚拟连接
        Channel channel = conn.createChannel();

        //创建队列,声明并创建一个队列，如果队列已存在，则使用这个队列
        //第一个参数：队列名称ID
        //第二个参数：是否持久化，false对应不持久化数据，MQ停掉数据就会丢失
        //第三个参数：是否队列私有化，false则代表所有消费者都可以访问，true代表只有第一次拥有它的消费者才能一直使用，其他消费者不让访问
        //第四个：是否自动删除,false代表连接停掉后不自动删除掉这个队列
        //其他额外的参数, null
        channel.queueDeclare(RabbitConstant.QUEUE_HELLOWORLD,false, false, false, null);

        //从MQ服务器中获取数据

        //创建一个消息消费者
        //第一个参数：队列名
        //第二个参数代表是否自动确认收到消息，false代表手动编程来确认消息，这是MQ的推荐做法
        //第三个参数要传入DefaultConsumer的实现类
        channel.basicConsume(RabbitConstant.QUEUE_HELLOWORLD, false, new Reciver(channel));


    }
}


class  Reciver extends DefaultConsumer {

    private Channel channel;
    //重写构造函数,Channel通道对象需要从外层传入，在handleDelivery中要用到
    public Reciver(Channel channel) {
        super(channel);
        this.channel = channel;
    }

    @Override
    public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {

         String message = new String(body);
         System.out.println("消费者接收到的消息："+message);

         System.out.println("消息的TagId："+envelope.getDeliveryTag());
        //false只确认签收当前的消息，设置为true的时候则代表签收该消费者所有未签收的消息
        channel.basicAck(envelope.getDeliveryTag(), false);
    }
}
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第二种Work queues工作队列模式

在这里插入图片描述

代码

public class OrderSystem {

    public static void main(String[] args) throws IOException, TimeoutException {
        Connection connection = RabbitUtils.getConnection();
        Channel channel = connection.createChannel();
        channel.queueDeclare(RabbitConstant.QUEUE_SMS, false, false, false, null);

        for(int i = 1 ; i <= 100 ; i++) {
            SMS sms = new SMS("乘客" + i, "13900000" + i, "您的车票已预订成功");
            String jsonSMS = new Gson().toJson(sms);
            channel.basicPublish("" , RabbitConstant.QUEUE_SMS , null , jsonSMS.getBytes());
        }
        System.out.println("发送数据成功");
        channel.close();
        connection.close();
    }
}
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public class SMS {

    private String name;
    private String mobile;
    private String content;

    public SMS(String name, String mobile, String content) {
        this.name = name;
        this.mobile = mobile;
        this.content = content;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getMobile() {
        return mobile;
    }

    public void setMobile(String mobile) {
        this.mobile = mobile;
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }
}

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public class SMSSender1 {

    public static void main(String[] args) throws IOException {


        Connection connection = RabbitUtils.getConnection();
        final Channel channel = connection.createChannel();

        channel.queueDeclare(RabbitConstant.QUEUE_SMS, false, false, false, null);

        //如果不写basicQos（1），则自动MQ会将所有请求平均发送给所有消费者
        //basicQos,MQ不再对消费者一次发送多个请求，而是消费者处理完一个消息后（确认后），在从队列中获取一个新的
        channel.basicQos(1);//处理完一个取一个

        channel.basicConsume(RabbitConstant.QUEUE_SMS , false , new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                String jsonSMS = new String(body);
                System.out.println("SMSSender1-短信发送成功:" + jsonSMS);

                try {
                    Thread.sleep(10);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                channel.basicAck(envelope.getDeliveryTag() , false);
            }
        });
    }

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public class SMSSender2 {

    public static void main(String[] args) throws IOException {


        Connection connection = RabbitUtils.getConnection();
        final Channel channel = connection.createChannel();

        channel.queueDeclare(RabbitConstant.QUEUE_SMS, false, false, false, null);

        //如果不写basicQos（1），则自动MQ会将所有请求平均发送给所有消费者
        //basicQos,MQ不再对消费者一次发送多个请求，而是消费者处理完一个消息后（确认后），在从队列中获取一个新的
        channel.basicQos(1);//处理完一个取一个

        channel.basicConsume(RabbitConstant.QUEUE_SMS , false , new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                String jsonSMS = new String(body);
                System.out.println("SMSSender2-短信发送成功:" + jsonSMS);

                try {
                    Thread.sleep(100);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }

                channel.basicAck(envelope.getDeliveryTag() , false);
            }
        });
    }
}

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public class SMSSender3 {


    public static void main(String[] args) throws IOException {


        Connection connection = RabbitUtils.getConnection();
        final Channel channel = connection.createChannel();

        channel.queueDeclare(RabbitConstant.QUEUE_SMS, false, false, false, null);

        //如果不写basicQos（1），则自动MQ会将所有请求平均发送给所有消费者
        //basicQos,MQ不再对消费者一次发送多个请求，而是消费者处理完一个消息后（确认后），在从队列中获取一个新的
        channel.basicQos(1);//处理完一个取一个

        channel.basicConsume(RabbitConstant.QUEUE_SMS , false , new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                String jsonSMS = new String(body);
                System.out.println("SMSSender3-短信发送成功:" + jsonSMS);

                try {
                    Thread.sleep(500);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                channel.basicAck(envelope.getDeliveryTag() , false);
            }
        });
    }
}

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广播模式

在这里插入图片描述
模式
天气预报，是由某部门统一发布，然后新浪，百度等才会接受，采用广播模式处理

public class WeatherBureau {


    public static void main(String[] args) throws Exception {
        Connection connection = RabbitUtils.getConnection();
        String input = new Scanner(System.in).next();
        Channel channel = connection.createChannel();

        //第一个参数交换机名字   其他参数和之前的一样
        channel.basicPublish(RabbitConstant.EXCHANGE_WEATHER,"" , null , input.getBytes());

        channel.close();
        connection.close();
    }
}

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public class Sina {

    public static void main(String[] args) throws IOException {
        //获取TCP长连接
        Connection connection = RabbitUtils.getConnection();
        //获取虚拟连接
        final Channel channel = connection.createChannel();
        //声明队列信息
        channel.queueDeclare(RabbitConstant.QUEUE_SINA, false, false, false, null);

        //queueBind用于将队列与交换机绑定
        //参数1：队列名 参数2：交互机名  参数三：路由key（暂时用不到)
        channel.queueBind(RabbitConstant.QUEUE_SINA, RabbitConstant.EXCHANGE_WEATHER, "");
        channel.basicQos(1);
        channel.basicConsume(RabbitConstant.QUEUE_SINA , false , new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                System.out.println("新浪天气收到气象信息：" + new String(body));
                channel.basicAck(envelope.getDeliveryTag() , false);
            }
        });
    }

}

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public class BiaDu {

    public static void main(String[] args) throws IOException {
        //获取TCP长连接
        Connection connection = RabbitUtils.getConnection();
        //获取虚拟连接
        final Channel channel = connection.createChannel();
        //声明队列信息
        channel.queueDeclare(RabbitConstant.QUEUE_BAIDU, false, false, false, null);

        //queueBind用于将队列与交换机绑定
        //参数1：队列名 参数2：交互机名  参数三：路由key（暂时用不到)
        channel.queueBind(RabbitConstant.QUEUE_BAIDU, RabbitConstant.EXCHANGE_WEATHER, "");
        channel.basicQos(1);
        channel.basicConsume(RabbitConstant.QUEUE_BAIDU , false , new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                System.out.println("新浪天气收到气象信息：" + new String(body));
                channel.basicAck(envelope.getDeliveryTag() , false);
            }
        });
    }

}

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第四种 Routing路由模式

在这里插入图片描述

具体代码实现

public class Sina {

    public static void main(String[] args) throws IOException {
        //获取TCP长连接
        Connection connection = RabbitUtils.getConnection();
        //获取虚拟连接
        final Channel channel = connection.createChannel();
        //声明队列信息
        channel.queueDeclare(RabbitConstant.QUEUE_SINA, false, false, false, null);

        //指定队列与交换机以及routing key之间的关系
        channel.queueBind(RabbitConstant.QUEUE_SINA, RabbitConstant.EXCHANGE_WEATHER_ROUTING, "us.cal.lsj.20201127");
        channel.queueBind(RabbitConstant.QUEUE_SINA, RabbitConstant.EXCHANGE_WEATHER_ROUTING, "china.hubei.wuhan.20201127");
        channel.queueBind(RabbitConstant.QUEUE_SINA, RabbitConstant.EXCHANGE_WEATHER_ROUTING, "us.cal.lsj.20201128");
        channel.queueBind(RabbitConstant.QUEUE_SINA, RabbitConstant.EXCHANGE_WEATHER_ROUTING, "china.henan.zhengzhou.20201012");

        channel.basicQos(1);
        channel.basicConsume(RabbitConstant.QUEUE_SINA , false , new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                System.out.println("新浪天气收到气象信息：" + new String(body));
                channel.basicAck(envelope.getDeliveryTag() , false);
            }
        });
    }

}

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public class WeatherBureau {


    public static void main(String[] args) throws Exception {

        Map area = new LinkedHashMap<String, String>();
        area.put("china.hunan.changsha.20201127", "中国湖南长沙20201127天气数据");
        area.put("china.hubei.wuhan.20201127", "中国湖北武汉20201127天气数据");
        area.put("china.hunan.zhuzhou.20201127", "中国湖南株洲20201128天气数据");
        area.put("us.cal.lsj.20201127", "美国加州洛杉矶20201127天气数据");

        area.put("china.hebei.shijiazhuang.20201128", "中国河北石家庄20201128天气数据");
        area.put("china.hubei.wuhan.20201128", "中国湖北武汉20201128天气数据");
        area.put("china.henan.zhengzhou.20201128", "中国河南郑州20201128天气数据");
        area.put("us.cal.lsj.20201128", "美国加州洛杉矶20201128天气数据");


        Connection connection = RabbitUtils.getConnection();
        Channel channel = connection.createChannel();

        Iterator<Map.Entry<String, String>> itr = area.entrySet().iterator();
        while (itr.hasNext()) {
            Map.Entry<String, String> me = itr.next();
            //第一个参数交换机名字   第二个参数作为 消息的routing key
            channel.basicPublish(RabbitConstant.EXCHANGE_WEATHER_ROUTING,me.getKey() , null , me.getValue().getBytes());

        }

        channel.close();
        connection.close();
    }
}

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public class BiaDu {

    public static void main(String[] args) throws IOException {
        Connection connection = RabbitUtils.getConnection();
        final Channel channel = connection.createChannel();
        channel.queueDeclare(RabbitConstant.QUEUE_BAIDU, false, false, false, null);
        //queueBind用于将队列与交换机绑定
        //参数1：队列名 参数2：交互机名  参数三：路由key
        channel.queueBind(RabbitConstant.QUEUE_BAIDU, RabbitConstant.EXCHANGE_WEATHER_ROUTING, "china.hunan.changsha.20201127");
        channel.queueBind(RabbitConstant.QUEUE_BAIDU, RabbitConstant.EXCHANGE_WEATHER_ROUTING, "china.hebei.shijiazhuang.20201128");
        channel.basicQos(1);
        channel.basicConsume(RabbitConstant.QUEUE_BAIDU , false , new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                System.out.println("百度天气收到气象信息：" + new String(body));
                channel.basicAck(envelope.getDeliveryTag() , false);
            }
        });

    }

}
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第五中 Topics通配符模式

在这里插入图片描述

具体代码

public class WeatherBureau {


    public static void main(String[] args) throws Exception {

        Map area = new LinkedHashMap<String, String>();
        area.put("china.hunan.changsha.20201127", "中国湖南长沙20201127天气数据");
        area.put("china.hubei.wuhan.20201127", "中国湖北武汉20201127天气数据");
        area.put("china.hunan.zhuzhou.20201127", "中国湖南株洲20201127天气数据");
        area.put("us.cal.lsj.20201127", "美国加州洛杉矶20201127天气数据");

        area.put("china.hebei.shijiazhuang.20201128", "中国河北石家庄20201128天气数据");
        area.put("china.hubei.wuhan.20201128", "中国湖北武汉20201128天气数据");
        area.put("china.henan.zhengzhou.20201128", "中国河南郑州20201128天气数据");
        area.put("us.cal.lsj.20201128", "美国加州洛杉矶20201128天气数据");


        Connection connection = RabbitUtils.getConnection();
        Channel channel = connection.createChannel();

        Iterator<Map.Entry<String, String>> itr = area.entrySet().iterator();
        while (itr.hasNext()) {
            Map.Entry<String, String> me = itr.next();
            //第一个参数交换机名字   第二个参数作为 消息的routing key
            channel.basicPublish(RabbitConstant.EXCHANGE_WEATHER_TOPIC,me.getKey() , null , me.getValue().getBytes());

        }

        channel.close();
        connection.close();
    }
}
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public class Sina {

    public static void main(String[] args) throws IOException {
        //获取TCP长连接
        Connection connection = RabbitUtils.getConnection();
        //获取虚拟连接
        final Channel channel = connection.createChannel();
        //声明队列信息
        channel.queueDeclare(RabbitConstant.QUEUE_SINA, false, false, false, null);

        //指定队列与交换机以及routing key之间的关系
        channel.queueBind(RabbitConstant.QUEUE_SINA, RabbitConstant.EXCHANGE_WEATHER_TOPIC, "us.#");

        channel.basicQos(1);
        channel.basicConsume(RabbitConstant.QUEUE_SINA , false , new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                System.out.println("新浪天气收到气象信息：" + new String(body));
                channel.basicAck(envelope.getDeliveryTag() , false);
            }
        });
    }

}

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public class BiaDu {

    public static void main(String[] args) throws IOException {
        Connection connection = RabbitUtils.getConnection();
        final Channel channel = connection.createChannel();
        channel.queueDeclare(RabbitConstant.QUEUE_BAIDU, false, false, false, null);
        //queueBind用于将队列与交换机绑定
        //参数1：队列名 参数2：交互机名  参数三：路由key
        channel.queueBind(RabbitConstant.QUEUE_BAIDU, RabbitConstant.EXCHANGE_WEATHER_TOPIC, "*.*.*.20201127");
       // channel.queueBind(RabbitConstant.QUEUE_BAIDU, RabbitConstant.EXCHANGE_WEATHER_ROUTING, "china.hebei.shijiazhuang.20201128");
        channel.basicQos(1);
        channel.basicConsume(RabbitConstant.QUEUE_BAIDU , false , new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                System.out.println("百度天气收到气象信息：" + new String(body));
                channel.basicAck(envelope.getDeliveryTag() , false);
            }
        });

    }

}

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工作模式

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