import com.rabbitmq.client.*;
import java.io.IOException;
/**
* 使用 channel.addReturnListener() 添加 ReturnListener 监听器，监听
* 没有成功路由给队列的消息。
* @author hxstrive.com
* @date 2022年2月17日13:59:29
*/
public class ReturnListener1 {
private static final String EXCHANGE_NAME = "exchange_" +
ReturnListener1.class.getSimpleName();
/**
* 发送消息
*/
private void sender() throws Exception {
// 创建连接
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("127.0.0.1");
factory.setPort(5672);
Connection connection = factory.newConnection();
// 创建通道
Channel channel = connection.createChannel();
channel.exchangeDeclare(EXCHANGE_NAME, "topic");
channel.addReturnListener(new ReturnListener() {
public void handleReturn(int replyCode, String replyText, String exchange,
String routingKey, AMQP.BasicProperties properties,
byte[] body) throws IOException {
System.out.println("<< " + new String(body));
}
});
// 发送消息
System.out.println("[Send] Sending Message...");
byte[] msg = ("hello wrold " + System.currentTimeMillis()).getBytes();
channel.basicPublish(EXCHANGE_NAME, "www.hxstrive.com",
true, MessageProperties.PERSISTENT_TEXT_PLAIN, msg);
System.out.println("[Send] msg = " + new String(msg));
Thread.sleep(Long.MAX_VALUE);
// 释放资源
channel.close();
connection.close();
}
public static void main(String[] args) throws Exception {
ReturnListener1 demo = new ReturnListener1();
demo.sender();
}
}
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