RabbitMQ 路由模式即直接交换机_rabbitmq路由键和交换机

1.路由交换机

这种类型的工作方式是，消息只去到它绑定的routing key的队列中去

2.实战

（1）图示

 （2）代码实现

package com.rabbitmq.six;
 
import com.rabbitmq.client.Channel;
import com.rabbitmq.utils.MqUtils;
 
import java.io.IOException;
import java.util.Scanner;
import java.util.concurrent.TimeoutException;
 
public class DirectLogs {
    private static final String EXCHANGE_NAME = "direct_logs";
 
    public static void main(String[] args) throws IOException, TimeoutException {
        Channel channel = MqUtils.getChannel();
        Scanner scanner = new Scanner(System.in);
        while(scanner.hasNext()) {
            String message = scanner.next();
            // 先测试info然后改成warning重启,然后改成error重启测试
            channel.basicPublish(EXCHANGE_NAME, "info", null ,message.getBytes("UTF-8"));
            System.out.println("生产者发出消息：" + message);
        }
    }
}

package com.rabbitmq.six;
 
import com.rabbitmq.client.BuiltinExchangeType;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.DeliverCallback;
import com.rabbitmq.utils.MqUtils;
 
import java.io.IOException;
import java.util.concurrent.TimeoutException;
 
public class ReceiveLogsDirect01 {
 
    private static final String EXCHANGE_NAME = "direct_logs";
 
    public static void main(String[] args) throws IOException, TimeoutException {
        Channel channel = MqUtils.getChannel();
        // 声明交换机-直接交换机(Direct)
        channel.exchangeDeclare(EXCHANGE_NAME, BuiltinExchangeType.DIRECT);
        // 声明队列
        channel.queueDeclare("console", false, false,false, null);
        // 绑定交换机与队列
        channel.queueBind("console", EXCHANGE_NAME, "info");
        channel.queueBind("console", EXCHANGE_NAME, "warning");
        // 接收消息
        DeliverCallback deliverCallback = (consumerTag, message) -> {
            System.out.println("ReceiveLogsDirect01控制台打印接收到的消息：" + new String(message.getBody(), "UTF-8"));
        };
 
        channel.basicConsume("console",true, deliverCallback,consumerTag->{});
    }
}

package com.rabbitmq.six;
 
import com.rabbitmq.client.BuiltinExchangeType;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.DeliverCallback;
import com.rabbitmq.utils.MqUtils;
 
import java.io.IOException;
import java.util.concurrent.TimeoutException;
 
public class ReceiveLogsDirect02 {
 
    private static final String EXCHANGE_NAME = "direct_logs";
 
    public static void main(String[] args) throws IOException, TimeoutException {
        Channel channel = MqUtils.getChannel();
        // 声明交换机-直接交换机(Direct)
        channel.exchangeDeclare(EXCHANGE_NAME, BuiltinExchangeType.DIRECT);
        // 声明队列
        channel.queueDeclare("disk", false, false,false, null);
        // 绑定交换机与队列
        channel.queueBind("disk", EXCHANGE_NAME, "error");
        // 接收消息
        DeliverCallback deliverCallback = (consumerTag, message) -> {
            System.out.println("ReceiveLogsDirect02控制台打印接收到的消息：" + new String(message.getBody(), "UTF-8"));
        };
 
        channel.basicConsume("disk",true, deliverCallback,consumerTag->{});
    }
}

（3）执行效果