4.rabbitmq之路由
来源:互联网 发布:php怎么样 编辑:程序博客网 时间:2024/06/05 18:55
参考:http://blog.csdn.net/lmj623565791/article/details/37669573
使用direct类型实现:消息会被推送至绑定键(binding key)和消息发布附带的选择键(routing key)完全匹配的队列。例如:将不同的日志发送到不同的消费端。
1.发送日志端SendLogDirect.Java
- package cn.slimsmart.rabbitmq.demo.route;
-
- import java.util.Random;
- import java.util.UUID;
-
- import com.rabbitmq.client.AMQP;
- import com.rabbitmq.client.Channel;
- import com.rabbitmq.client.Connection;
- import com.rabbitmq.client.ConnectionFactory;
-
-
- public class SendLogDirect {
-
-
- private static final String EXCHANGE_NAME = "ex_logs_direct";
-
- private static final String[] SEVERITIES = { "info", "warning", "error" };
-
- public static void main(String[] args) throws Exception {
-
- ConnectionFactory factory = new ConnectionFactory();
- factory.setHost("192.168.101.174");
-
- factory.setUsername("admin");
- factory.setPassword("admin");
-
- factory.setPort(AMQP.PROTOCOL.PORT);
- Connection connection = factory.newConnection();
- Channel channel = connection.createChannel();
-
- channel.exchangeDeclare(EXCHANGE_NAME, "direct");
-
-
- for (int i = 0; i < 6; i++)
- {
- String severity = getSeverity();
- String message = severity + "_log :" + UUID.randomUUID().toString();
-
- channel.basicPublish(EXCHANGE_NAME, severity, null, message .getBytes());
- System.out.println(" [x] Sent '" + message + "'");
- }
-
- channel.close();
- connection.close();
- }
-
-
-
-
-
-
- private static String getSeverity()
- {
- Random random = new Random();
- int ranVal = random.nextInt(3);
- return SEVERITIES[ranVal];
- }
-
- }
2.接收日志端ReceiveLogsDirect.java
- package cn.slimsmart.rabbitmq.demo.route;
-
- import java.util.Random;
-
- import com.rabbitmq.client.AMQP;
- import com.rabbitmq.client.Channel;
- import com.rabbitmq.client.Connection;
- import com.rabbitmq.client.ConnectionFactory;
- import com.rabbitmq.client.QueueingConsumer;
-
-
- public class ReceiveLogsDirect {
-
- private static final String EXCHANGE_NAME = "ex_logs_direct";
- private static final String[] SEVERITIES = { "info", "warning", "error" };
-
- public static void main(String[] args) throws Exception {
-
- ConnectionFactory factory = new ConnectionFactory();
- factory.setHost("192.168.101.174");
-
- factory.setUsername("admin");
- factory.setPassword("admin");
-
- factory.setPort(AMQP.PROTOCOL.PORT);
- Connection connection = factory.newConnection();
- Channel channel = connection.createChannel();
-
- channel.exchangeDeclare(EXCHANGE_NAME, "direct");
-
- String queueName = channel.queueDeclare().getQueue();
- String severity = getSeverity();
-
- channel.queueBind(queueName, EXCHANGE_NAME, severity);
- System.out.println(" [*] Waiting for "+severity+" logs. To exit press CTRL+C");
-
- QueueingConsumer consumer = new QueueingConsumer(channel);
- channel.basicConsume(queueName, true, consumer);
-
- while (true)
- {
- QueueingConsumer.Delivery delivery = consumer.nextDelivery();
- String message = new String(delivery.getBody());
-
- System.out.println(" [x] Received '" + message + "'");
- }
- }
-
-
-
-
-
-
- private static String getSeverity()
- {
- Random random = new Random();
- int ranVal = random.nextInt(3);
- return SEVERITIES[ranVal];
- }
- }
启动几个接收端服务,再启动发送端,接收端对应绑定的键收到对应的消息。注:发送消息时可以设置routing_key,接收队列与转发器间可以设置binding_key,接收者接收与binding_key与routing_key相同的消息
0 0