RabbitMQ 简单队列

public static Connection getConnection() throws Exception {
    //定义连接工厂
    ConnectionFactory factory = new ConnectionFactory();
    //设置服务地址
    factory.setHost("localhost");
    //端口
    factory.setPort(5672);
    //设置账号信息，用户名、密码、vhost
    factory.setVirtualHost("/testvhost");
    factory.setUsername("test");
    factory.setPassword("test");
    // 通过工程获取连接
    Connection connection = factory.newConnection();
    return connection;
}

private final static String QUEUE_NAME = "test_queue";
@Test
public void testSend() throws Exception {
    // 获取到连接以及mq通道
    Connection connection = ConnectionUtil.getConnection();
    // 从连接中创建通道
    Channel channel = connection.createChannel();
    // 声明（创建）队列
    channel.queueDeclare(QUEUE_NAME, false, false, false, null);
    // 消息内容
    String message = "Hello World!";
    channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
    System.out.println(" [x] Sent '" + message + "'");
    //关闭通道和连接
    channel.close();
    connection.close();
}

消费者从队列中获取消息

@Test
public void testRecv() throws Exception{
    // 获取到连接以及mq通道
    Connection connection = ConnectionUtil.getConnection();
    Channel channel = connection.createChannel();
    // 声明队列
    channel.queueDeclare(QUEUE_NAME, false, false, false, null);
    // 定义队列的消费者
    QueueingConsumer consumer = new QueueingConsumer(channel);
    // 监听队列
    channel.basicConsume(QUEUE_NAME, true, consumer);
    // 获取消息
    while (true) {
        QueueingConsumer.Delivery delivery = consumer.nextDelivery();
        String message = new String(delivery.getBody());
        System.out.println(" [x] Received '" + message + "'");
    }
}