生产者
public class RabbitProducer {
private static final String EXCHANGE_NAME = "exchange_demo";
private static final String ROUTING_KEY = "routingkey_demo";
private static final String QUEUE_NAME = "queue_demo";
private static final String IP_ADDRESS = "192.168.20.4";
private static final int PORT = 5672;//RabbitMQ(AMQP) 服务端默认端口号为 5672
public static void main(String[] args) throws IOException,
TimeoutException, InterruptedException {
Connection connection = ConnectionUtils.getConnection(IP_ADDRESS, PORT, "my_vhost",
"admin", "admin");
Channel channel = connection.createChannel();
// 创建一个 type="direct" 、持久化的、非自动删除的交换器
channel.exchangeDeclare(EXCHANGE_NAME, "direct", true, false, null);
// 创建一个持久化、非排他的、非自动删除的队列
channel.queueDeclare(QUEUE_NAME, true, false, false, null);
// 将交换器与队列通过路由键绑定
channel.queueBind(QUEUE_NAME, EXCHANGE_NAME, ROUTING_KEY);
// 发送一条持久化的消息: hello world !
String message = "Hello World !";
// 消息发布
channel.basicPublish(EXCHANGE_NAME, ROUTING_KEY,
MessageProperties.PERSISTENT_TEXT_PLAIN,
message.getBytes());
//关闭资源
ConnectionUtils.close(channel, connection);
}
}
消费者
public class RabbitConsumer {
private static final String QUEUE_NAME = "queue_demo";
private static final String IP_ADDRESS = "192.168.20.4";
private static final int PORT = 5672;
public static void main(String[] args) throws IOException, TimeoutException, InterruptedException {
Address[] addresses = new Address[]{
new Address(IP_ADDRESS, PORT)
};
ConnectionFactory factory = new ConnectionFactory();
factory.setVirtualHost("my_vhost");
factory.setUsername("admin");
factory.setPassword("admin");
Connection connection = factory.newConnection(addresses);
final Channel channel = connection.createChannel();
// 设置客户端最多未被ack的个数
channel.basicQos(64);
Consumer consumer = new DefaultConsumer(channel) {
@Override
public void handleDelivery(String consumerTag,
Envelope envelope,
AMQP.BasicProperties properties,
byte[] body)
throws IOException {
System.out.println(" recv message: " + new String(body));
try {
TimeUnit.SECONDS.sleep(1);
} catch (InterruptedException e) {
e.printStackTrace();
}
channel.basicAck(envelope.getDeliveryTag(), false);
}
};
channel.basicConsume(QUEUE_NAME, consumer);
// 等待回调函数执行完毕之后 关闭资源
TimeUnit.SECONDS.sleep(5);
ConnectionUtils.close(channel, connection);
}
}
消息包括两个部分
消息体(payload)和标签体,消息体一般是一个json格式的数据,标签体包含一个交换器名称和路由键
交换器
AMQP协议
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