一 代码
package com.rabbitmq.ttl;
import com.rabbitmq.client.*;
import com.rabbitmq.util.ConnectionUtils;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeoutException;
/**
* 消息过期(通过队列设置)
*/
public class MsgTTL2 {
private static final String EXCHANGE_NAME = "exchange_demo";
private static final String ROUTING_KEY = "routingkey_demo";
private static final String QUEUE_NAME = "msgTTL2_demo";
private static final String IP_ADDRESS = "127.0.0.1";
private static final int PORT = 5672;//RabbitMQ(AMQP) 服务端默认端口号为 5672
public static void main(String[] args) throws IOException,
TimeoutException {
ConnectionFactory factory = new ConnectionFactory();
factory.setHost(IP_ADDRESS);
factory.setUsername("root");
factory.setPassword("123456");
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
// 创建一个 type="direct" 、持久化的、非自动删除的交换器
channel.exchangeDeclare(EXCHANGE_NAME, "direct", true, false, null);
// 创建一个持久化、非排他的、非自动删除的队列
Map<String, Object> arg = new HashMap<String, Object>(3);
// 设置队列中消息过期时间,30秒过期(毫秒为单位)
arg.put("x-message-ttl", 30000);
channel.queueDeclare(QUEUE_NAME, true, false, false, arg);
// 将交换器与队列通过路由键绑定
channel.queueBind(QUEUE_NAME, EXCHANGE_NAME, ROUTING_KEY);
// 发送一条持久化的消息: hello world !
String message = "Hello World !";
// 消息发布
// 第三个参数为mandatory
channel.basicPublish(EXCHANGE_NAME, ROUTING_KEY, false,
MessageProperties.PERSISTENT_TEXT_PLAIN,
message.getBytes());
ConnectionUtils.close(channel, connection);
}
}
二 测试
1 30秒内查看队列中的消息——消息还存在
2 30秒后查看队列中的消息——消息已经丢弃了
三 参考代码
https://github.com/cakin24/RabbitMQDemo/blob/master/src/main/java/com/rabbitmq/ttl/MsgTTL2.java
来源:CSDN
作者:cakincqm
链接:https://blog.csdn.net/chengqiuming/article/details/103836898