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Java RabbitMQ-如何在主题交换中切换关键字?_Java_Rabbitmq_Exchange Server_Publish Subscribe_Amqp - Fatal编程技术网

Java RabbitMQ-如何在主题交换中切换关键字?

Java RabbitMQ-如何在主题交换中切换关键字?,java,rabbitmq,exchange-server,publish-subscribe,amqp,Java,Rabbitmq,Exchange Server,Publish Subscribe,Amqp,我有一个关键字列表,我想从发布者那里向每个关键字发送一条消息 当我尝试循环浏览它们时,我的订阅者会收到每一条消息,不管它是否已订阅 public class BrokerProducer { public static String[] topics = {"Beauty","Meat","Soft Drinks","Fruits and Vegetables","Alcoholic Drinks"}; /** * @param args the command line argument

我有一个关键字列表,我想从发布者那里向每个关键字发送一条消息

当我尝试循环浏览它们时,我的订阅者会收到每一条消息,不管它是否已订阅

public class BrokerProducer {
public static String[] topics = {"Beauty","Meat","Soft Drinks","Fruits and Vegetables","Alcoholic Drinks"};


/**
 * @param args the command line arguments
 */
public static void main(String[] args){

    try {
        CreateProducer();
        /*
        Broker RabbitMQ en 155.54.204.46
        (diana.inf.um.es)
        – Port 5672
        – Username master
        – Password master*/
        // TODO code application logic here
    } catch (IOException ex) {
        Logger.getLogger(BrokerProducer.class.getName()).log(Level.SEVERE, null, ex);
    } catch (TimeoutException ex) {
        Logger.getLogger(BrokerProducer.class.getName()).log(Level.SEVERE, null, ex);
    }

    System.out.print("success");
}

private static void CreateProducer() throws IOException, TimeoutException{
    ConnectionFactory factory = new ConnectionFactory();
    factory.setUsername("master");
    factory.setPassword("master");
    factory.setHost("diana.inf.um.es"); 
    factory.setPort(5672);
    Connection conn = factory.newConnection();

    Channel channel = conn.createChannel();

    channel.exchangeDeclare("SupermarketExchange1", "topic");
    //channel.basicPublish("SupermarketExchange1", "testrouting.*", null, "testmessage".getBytes());
    //channel.basicPublish("SupermarketExchange1", "testrouting.Fruits and Vegetables", null, "testmessage".getBytes());

    for(String top: topics){
        //channel.exchangeDeclare("SupermarketExchange1", "topic");
        publish(channel, "SupermarketExchange1", top);
        System.out.println(top);
        //channel.exchangeDelete("SupermarketExchange1");
    }
}

private static void publish(Channel channel, String Exchange, String Topic) throws IOException{
    String Message = "You are subscribed to"+ Topic;

    channel.basicPublish(Exchange,"testrouting."+ Topic, null, Message.getBytes());

}
}订户:

public static void CreateConsumer(String subTopic) throws TimeoutException, IOException {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setUsername("master");
    factory.setPassword("master");
    factory.setHost("diana.inf.um.es");
    factory.setPort(5672);
    Connection conn = factory.newConnection();

    Channel channel = conn.createChannel();
    channel.exchangeDeclare("SupermarketExchange1", "topic");
    //channel.basicPublish("SupermarketExchange", "testrouting", null, "testmessage".getBytes());
    channel.queueDeclare("IncomingQueue2", false, false,false,null);
    System.out.println("createconsumer");
    channel.queueBind("IncomingQueue2", "SupermarketExchange1", "testrouting."+ subTopic);

    JonathanConsumer consum = new JonathanConsumer(channel);
    channel.basicConsume("IncomingQueue2",false, consum);


}
还有手工制作:

public class JonathanConsumer extends DefaultConsumer {
    public JonathanConsumer(Channel channel) {
        super(channel);
    }

@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
    super.handleDelivery(consumerTag, envelope, properties, body); //To change body of generated methods, choose Tools | Templates.
    System.out.println("Handle delivery");

    Log.d("MyTag", new String(body));
    System.out.println(new String(body));
}
}

似乎您的消费者订阅了所有路由密钥。阅读和阅读文章。他们解释了RabbitMQ中的路由是如何工作的。不应该这样,我可以发布我的订户代码。路由密钥似乎是“testrouting.Meat”,但它仍然接收所有内容。