java
复制代码
//批量发布异步确认
public static void publishSync() throws Exception {
//创建链接工厂
ConnectionFactory connectionFactory = new ConnectionFactory();
//设置链接
connectionFactory.setHost("192.168.43.37");
connectionFactory.setUsername("admin");
connectionFactory.setPassword("admin");
//链接工厂创建链接
Connection connection = connectionFactory.newConnection();
//获取信道
Channel channel = connection.createChannel();
//信道声明
String queueName = UUID.randomUUID().toString();
channel.queueDeclare(queueName, true, false, false, null);
//开启发布确认
channel.confirmSelect();
/**
* 线程安全有序的一个哈希表 适用于高并发的情况下
*
* 1.轻松的将需要与消息进行关联
* 2.轻松的批量删除条数
* 3.支持高并发
*/
ConcurrentSkipListMap<Long,String> outstandingConfirms = new ConcurrentSkipListMap<>();
//确认监听器
ConfirmCallback confirmCallback = ( deliveryTag,multiple)->{
System.out.println("消息确认监听器成功确认：" + deliveryTag);
//删除发送过的消息
if(multiple){
//批量的删除确认的消息 剩下的是未确认的
ConcurrentNavigableMap<Long,String> confirmed =
outstandingConfirms.headMap(deliveryTag);
confirmed.clear();
}else {
outstandingConfirms.remove(deliveryTag);
}
};
ConfirmCallback nconfirmCallback= ( deliveryTag,multiple)->{
//未确认的消息
String message = outstandingConfirms.get(deliveryTag);
System.out.println("未确认的消息："+deliveryTag +"-"+message);
};
channel.addConfirmListener(confirmCallback,nconfirmCallback);
//开始时间
long begin = System.currentTimeMillis();
for (int i = 0; i < MESSAGE_COUNT; i++) {
String mes = i + "";
channel.basicPublish("",queueName,null,mes.getBytes("UTF-8"));
outstandingConfirms.put(channel.getNextPublishSeqNo(),mes);
//记录所有发布的消息
}
long end = System.currentTimeMillis();
System.out.println("发布"+MESSAGE_COUNT+"条用时共计：" + (end-begin) );
}