0%

RabbitMQ核心API Exchange之Topic(16)

https://raw.githubusercontent.com/littlefxc/littlefxc.github.io/images/images/rabbitmq_16_1.png

https://raw.githubusercontent.com/littlefxc/littlefxc.github.io/images/images/rabbitmq_16_2.png

https://raw.githubusercontent.com/littlefxc/littlefxc.github.io/images/images/rabbitmq_16_3.png

Sender4TopicExchange

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
public class Sender4TopicExchange {

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

//1 创建ConnectionFactory
ConnectionFactory connectionFactory = new ConnectionFactory();
connectionFactory.setHost("localhost");
connectionFactory.setPort(5672);
connectionFactory.setVirtualHost("/");

//2 创建Connection
Connection connection = connectionFactory.newConnection();
//3 创建Channel
Channel channel = connection.createChannel();
//4 声明
String exchangeName = "test_topic_exchange";
String routingKey1 = "user.save";
String routingKey2 = "user.update";
String routingKey3 = "user.delete.abc";
//5 发送

String msg = "Hello World RabbitMQ 4 Topic Exchange Message ...";
channel.basicPublish(exchangeName, routingKey1 , null , msg.getBytes());
channel.basicPublish(exchangeName, routingKey2 , null , msg.getBytes());
channel.basicPublish(exchangeName, routingKey3 , null , msg.getBytes());
channel.close();
connection.close();
}

}

Receiver4TopicExchange1

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
public class Receiver4TopicExchange1 {

public static void main(String[] args) throws Exception {
ConnectionFactory connectionFactory = new ConnectionFactory() ;

connectionFactory.setHost("localhost");
connectionFactory.setPort(5672);
connectionFactory.setVirtualHost("/");

connectionFactory.setAutomaticRecoveryEnabled(true);
connectionFactory.setNetworkRecoveryInterval(3000);
Connection connection = connectionFactory.newConnection();

Channel channel = connection.createChannel();
//4 声明
String exchangeName = "test_topic_exchange";
String exchangeType = "topic";
String queueName = "test_topic_queue";
//String routingKey = "user.*";
String routingKey = "user.#";
channel.exchangeDeclare(exchangeName, exchangeType, true, false, false, null);
channel.queueDeclare(queueName, false, false, false, null);
channel.queueBind(queueName, exchangeName, routingKey);

//durable 是否持久化消息
QueueingConsumer consumer = new QueueingConsumer(channel);
// 参数:队列名称、是否自动ACK、Consumer
channel.basicConsume(queueName, true, consumer);
System.err.println("consumer1 start.. ");
// 循环获取消息
while(true){
// 获取消息,如果没有消息,这一步将会一直阻塞
Delivery delivery = consumer.nextDelivery();
String msg = new String(delivery.getBody());
System.out.println("收到消息:" + msg + ", RoutingKey: " + delivery.getEnvelope().getRoutingKey());
}
}
}

Receiver4TopicExchange2

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
public class Receiver4TopicExchange2 {

public static void main(String[] args) throws Exception {
ConnectionFactory connectionFactory = new ConnectionFactory() ;

connectionFactory.setHost("localhost");
connectionFactory.setPort(5672);
connectionFactory.setVirtualHost("/");

connectionFactory.setAutomaticRecoveryEnabled(true);
connectionFactory.setNetworkRecoveryInterval(3000);
Connection connection = connectionFactory.newConnection();

Channel channel = connection.createChannel();
//4 声明
String exchangeName = "test_topic_exchange";
String exchangeType = "topic";
String queueName = "test_topic_queue";
String routingKey = "user.*";
// String routingKey = "user.#";
channel.exchangeDeclare(exchangeName, exchangeType, true, false, false, null);
channel.queueDeclare(queueName, false, false, false, null);
channel.queueBind(queueName, exchangeName, routingKey);

//durable 是否持久化消息
QueueingConsumer consumer = new QueueingConsumer(channel);
//参数:队列名称、是否自动ACK、Consumer
channel.basicConsume(queueName, true, consumer);
System.err.println("consumer2 start .. ");
// 循环获取消息
while(true){
//获取消息,如果没有消息,这一步将会一直阻塞
Delivery delivery = consumer.nextDelivery();
String msg = new String(delivery.getBody());
System.out.println("收到消息:" + msg + ", RoutingKey: " + delivery.getEnvelope().getRoutingKey());
}
}
}