将路邮键和某种模式绑定
image.png
-
”#“警号匹配多个
比如:usa.# -
”*“星号匹配一个
发送的是美国新闻,就会路由到新闻的消息队列,
发送的是美国天气预报,就会路由到天气预报的消息队列,
TICP模型
image.pnghttps://github.com/csy512889371/learndemo/tree/master/ctoedu-rabitmq
生产者
import cn.ctoedu.rabbitmq.util.ConnectionUtils;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
public class Send {
private final static String EXCHANGE_NAME = "test_exchange_topic";
public static void main(String[] argv) throws Exception {
// 获取到连接以及mq通道
Connection connection = ConnectionUtils.getConnection();
Channel channel = connection.createChannel();
// 声明exchange type类型设置成topic主题方式
channel.exchangeDeclare(EXCHANGE_NAME, "topic");
// 消息内容
String message = "商品发布";
channel.basicPublish(EXCHANGE_NAME, "Goods.add", null, message.getBytes());
System.out.println(" [x] Send '" + message + "'");
channel.close();
connection.close();
}
}
消费者1
import com.rabbitmq.client.*;
import java.io.IOException;
public class Recv {
private final static String QUEUE_NAME = "test_queue_topic_1";
private final static String EXCHANGE_NAME = "test_exchange_topic";
public static void main(String[] argv) throws Exception {
// 获取到连接以及mq通道
Connection connection = ConnectionUtils.getConnection();
final Channel channel = connection.createChannel();
// 声明队列
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
// 绑定队列到交换机
channel.queueBind(QUEUE_NAME, EXCHANGE_NAME, "goods.add");
// 同一时刻服务器只会发一条消息给消费者
channel.basicQos(1);
// 定义队列的消费者
Consumer consumer = new DefaultConsumer(channel) {
// 消息到达 触发这个方法
@Override
public void handleDelivery(String consumerTag, Envelope envelope,
BasicProperties properties, byte[] body) throws IOException {
String msg = new String(body, "utf-8");
System.out.println("[2] Recv msg:" + msg);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
System.out.println("[2] done ");
// 手动回执
channel.basicAck(envelope.getDeliveryTag(), false);
}
}
};
boolean autoAck = false;
channel.basicConsume(QUEUE_NAME, autoAck, consumer);
}
}
消费者 2
import cn.ctoedu.rabbitmq.util.ConnectionUtils;
import com.rabbitmq.client.*;
import java.io.IOException;
public class Recv {
private final static String QUEUE_NAME = "test_queue_topic_1";
private final static String EXCHANGE_NAME = "test_exchange_topic";
public static void main(String[] argv) throws Exception {
// 获取到连接以及mq通道
Connection connection = ConnectionUtils.getConnection();
final Channel channel = connection.createChannel();
// 声明队列
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
// 绑定队列到交换机 操作产品的所有方式交换机都能接受
channel.queueBind(QUEUE_NAME, EXCHANGE_NAME, "goods.#");
// 同一时刻服务器只会发一条消息给消费者
channel.basicQos(1);
// 定义队列的消费者
Consumer consumer = new DefaultConsumer(channel) {
// 消息到达 触发这个方法
@Override
public void handleDelivery(String consumerTag, Envelope envelope,
BasicProperties properties, byte[] body) throws IOException {
String msg = new String(body, "utf-8");
System.out.println("[2] Recv msg:" + msg);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
System.out.println("[2] done ");
// 手动回执
channel.basicAck(envelope.getDeliveryTag(), false);
}
}
};
boolean autoAck = false;
channel.basicConsume(QUEUE_NAME, autoAck, consumer);
}
}
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