RabbitMQ 簡使用案例

第一步導入依賴 ：

<dependency>
            <groupId>com.rabbitmq</groupId>
            <artifactId>amqp-client</artifactId>
            <version>3.4.1</version>
</dependency>

 

第二步編寫一個連接類獲取MQ的連接：ConnectionUtil

package com.example.springboot_rabbitmq.util;

import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

public class ConnectionUtil {

    public static Connection getConnection() throws Exception {
        //定義連接工廠
        ConnectionFactory factory = new ConnectionFactory();
        //設置服務地址
        factory.setHost("localhost");
        //端口
        factory.setPort(5672);
        //設置賬號信息，用戶名、密碼、vhost
        factory.setVirtualHost("/");
        factory.setUsername("guest");
        factory.setPassword("guest");
        // 通過工程獲取連接
        Connection connection = factory.newConnection();
        if (connection.isOpen()){
            System.out.println("連接成功");
        }else{
            System.out.println("連接失敗");
        }
        return connection;
    }

    public static void main(String[] args) {
        //測試連接
        try {
            System.out.println(ConnectionUtil.getConnection());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

第三步：啟動本地服務端

 

 

 

 測試連接：

 

 

 連接成功沒毛病

 

下面使用瀏覽器訪問：http://localhost:15672

window下安裝RabbitMQ教程：https://www.cnblogs.com/nongzihong/p/11578255.html

 

 

 

 

 

 

 

 

第四步：生產者發送消息到隊列

package com.example.springboot_rabbitmq.simple;


import com.example.springboot_rabbitmq.util.ConnectionUtil;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
public class Send {

    private final static String QUEUE_NAME = "q_test_01";

    public static void main(String[] argv) throws Exception {
        // 獲取到連接以及mq通道
        Connection connection = ConnectionUtil.getConnection();
        // 從連接中創建通道
        Channel channel = connection.createChannel();

        // 聲明（創建）隊列
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);

        // 消息內容
        String message = "Hello World!";
        channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
        System.out.println(" [x] Sent '" + message + "'");
        //關閉通道和連接
        channel.close();
        connection.close();
    }

}

管理工具中查看消息：

 

 

 

 

 

  第五步：消費者從隊列中獲取消息

package com.example.springboot_rabbitmq.simple;

import com.example.springboot_rabbitmq.util.ConnectionUtil;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.QueueingConsumer;

public class Recv {
    private final static String QUEUE_NAME = "q_test_01";

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

        // 獲取到連接以及mq通道
        Connection connection = ConnectionUtil.getConnection();
        // 從連接中創建通道
        Channel channel = connection.createChannel();
        // 聲明隊列
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);

        // 定義隊列的消費者
        QueueingConsumer consumer = new QueueingConsumer(channel);

        // 監聽隊列
        channel.basicConsume(QUEUE_NAME, true, consumer);

        // 獲取消息
        while (true) {
            QueueingConsumer.Delivery delivery = consumer.nextDelivery();
            String message = new String(delivery.getBody());
            System.out.println(" [x] Received '" + message + "'");
        }
    }

}

 

 信息獲取成功