” # :匹配一个或多个词
* :匹配不多不少恰好1个词
举例:
item.# :能够匹配 item.insert.abc 或者 item.insert
item.* :只能匹配 item.insert
一个频道
一个交换机(类型为:topic)
两个队列
两个消费者(一个消费者 路由key为 info.insert,另一个为 infor.# 和 *.delet.#)
package com.xiaoxu.topics; import com.rabbitmq.client.BuiltinExchangeType; import com.rabbitmq.client.Channel; import com.rabbitmq.client.Connection; import com.xiaoxu.ConnectionUtis; import java.io.IOException; import java.util.concurrent.TimeoutException; public class Producter { //定义两个消息队列 static final String QUEUE_TOPICS_1 = "queue_topics_1"; static final String QUEUE_TOPICS_2 = "queue_topics_2"; //defining a exchange static final String EXCHANGE_NAME = "exchange_topics"; public static void main(String[] args) throws IOException, TimeoutException { //1、创建连接工厂 //2. 创建连接;(抽取一个获取连接的工具类) Connection connection = ConnectionUtis.getConnection(); // 3. 创建频道; Channel channel = connection.createChannel(); //statement exchange channel.exchangeDeclare(EXCHANGE_NAME, BuiltinExchangeType.TOPIC); // 6. 监听队列 String message = "我是一个消息。。infor"; channel.basicPublish(EXCHANGE_NAME, "infor.inset", null, message.getBytes()); System.out.println(message); message = "我是一个消息。。error.delet"; channel.basicPublish(EXCHANGE_NAME,"error.delet",null,message.getBytes()); System.out.println(message); message = "我是一个消息。。error.delet.insert"; channel.basicPublish(EXCHANGE_NAME,"error.delet.insert",null,message.getBytes()); System.out.println(message); //7、关闭资源 channel.close(); connection.close(); } }
package com.xiaoxu.topics; import com.rabbitmq.client.*; import com.xiaoxu.ConnectionUtis; import com.xiaoxu.topics.Producter; import java.io.IOException; import java.util.concurrent.TimeoutException; public class Consumer1 { public static void main(String[] args) throws IOException, TimeoutException { Connection connection = ConnectionUtis.getConnection(); //创建频道 Channel channel = connection.createChannel(); //statement exchange channel.exchangeDeclare(Producter.EXCHANGE_NAME,BuiltinExchangeType.TOPIC); // create queue channel.queueDeclare(Producter.QUEUE_TOPICS_1,true,false,false,null); //bainding queue and exchange channel.queueBind(Producter.QUEUE_TOPICS_1,Producter.EXCHANGE_NAME,"infor.inset"); //creat consumer and set information DefaultConsumer consumer1 = new DefaultConsumer(channel) { @Override public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException{ //路由key System.out.println("路由key为:" + envelope.getRoutingKey()); //交换机 System.out.println("交换机为:" + envelope.getExchange()); //消息id System.out.println("消息id为:" + envelope.getDeliveryTag()); //收到的消息 System.out.println("接收到的消息为:" + new String(body, "utf-8")); System.out.println("我是消费者一号。。。"); } }; //listen to the message channel.basicConsume(Producter.QUEUE_TOPICS_1,true,consumer1); } }
package com.xiaoxu.topics; import com.rabbitmq.client.*; import com.xiaoxu.ConnectionUtis; import java.io.IOException; import java.util.concurrent.TimeoutException; public class Consumer2 { public static void main(String[] args) throws IOException, TimeoutException { Connection connection = ConnectionUtis.getConnection(); //创建频道 Channel channel = connection.createChannel(); //statement exchange channel.exchangeDeclare(Producter.EXCHANGE_NAME,BuiltinExchangeType.TOPIC); // create queue channel.queueDeclare(Producter.QUEUE_TOPICS_2,true,false,false,null); //bainding queue and exchange channel.queueBind(Producter.QUEUE_TOPICS_2,Producter.EXCHANGE_NAME,"infor.#"); channel.queueBind(Producter.QUEUE_TOPICS_2,Producter.EXCHANGE_NAME,"*.delet.#"); //creat consumer and set information DefaultConsumer consumer1 = new DefaultConsumer(channel) { @Override public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException{ //路由key System.out.println("路由key为:" + envelope.getRoutingKey()); //交换机 System.out.println("交换机为:" + envelope.getExchange()); //消息id System.out.println("消息id为:" + envelope.getDeliveryTag()); //收到的消息 System.out.println("接收到的消息为:" + new String(body, "utf-8")); System.out.println("我是消费者二号。。。"); } }; //listen to the message channel.basicConsume(Producter.QUEUE_TOPICS_2,true,consumer1); } }四、测试
RabbitMQ工作模式:
1、简单模式 HelloWorld 一个生产者、一个消费者,不需要设置交换机(使用默认的交换
机)
2、工作队列模式 Work Queue 一个生产者、多个消费者(竞争关系),不需要设置交换机(使用默认的交换机)
3、发布订阅模式 Publish/subscribe 需要设置类型为fanout的交换机,并且交换机和队列进行绑定,当发送消息到
交换机后,交换机会将消息发送到绑定的队列
4、路由模式 Routing 需要设置类型为direct的交换机,交换机和队列进行绑定,并且指定routing key,当发送消息
到交换机后,交换机会根据routing key将消息发送到对应的队列
5、通配符模式 Topic 需要设置类型为topic的交换机,交换机和队列进行绑定,并且指定通配符方式的routing key,
当发送消息到交换机后,交换机会根据routing key将消息发送到对应的队列
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