rabbitmq学习——交换机

Posted 2020-10-10 春风十里 不如你

public class Send {
public static void main(String[] args) throws Exception{
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("localhost");
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
/*
* 分发给多个消费者：发布/订阅 模式
* */
//此处声明交换机 参数1 交换机名字 参数2 交换机类型
channel.exchangeDeclare("logs", "fanout");
String con = "声明一个交换机 666";
channel.basicPublish("logs", "", null, con.getBytes());

channel.close();
connection.close();
}
}

 

 

public class Receive {
public static void main(String[] args){
try{
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("localhost");
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
channel.exchangeDeclare("logs", "fanout");

String queuename = channel.queueDeclare().getQueue();//获取队列名称
//System.out.println(queuename);
/*
* 已经声明了交换机 也声明了 队列
* 现在需要将交换机绑定队列，让交换机将信息发送给队列
* */
channel.queueBind(queuename, "logs", "");

Consumer callback = new Consumer() {
@Override
public void handleShutdownSignal(String consumerTag,
ShutdownSignalException sig) {
}

@Override
public void handleRecoverOk(String consumerTag) {
}

@Override
public void handleDelivery(String arg0, Envelope arg1,
BasicProperties arg2, byte[] arg3) throws IOException {
System.out.println("内容："+new String(arg3,"utf-8"));
}

@Override
public void handleConsumeOk(String consumerTag) {
}

@Override
public void handleCancelOk(String consumerTag) {
}

@Override
public void handleCancel(String consumerTag) throws IOException {
}
};

channel.basicConsume(queuename,true, callback);

channel.close();
connection.close();
}catch(Exception e){
throw new RuntimeException();
}
}
}