67 lines
2.4 KiB
Java
67 lines
2.4 KiB
Java
package com.bwie.auth.utils;
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import org.springframework.amqp.core.Binding;
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import org.springframework.amqp.core.BindingBuilder;
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import org.springframework.amqp.core.DirectExchange;
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import org.springframework.amqp.core.Queue;
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import org.springframework.amqp.rabbit.core.RabbitAdmin;
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import org.springframework.amqp.rabbit.core.RabbitTemplate;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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import javax.annotation.Resource;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* 发送TTL队列 设置 消息的存活时间 如果超过了存活时间
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* 该条消息还没有被消费 则自动从队列中消息 ，如果配置了死信队列则消息会进入死信队列
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*/
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@Component
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public class TtlQueue {
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// routingKey
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private static final String TTL_KEY = "ttl.routingkey";
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private static final String TTL_EXCHANGE = "ttl.exchange";
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@Autowired
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RabbitTemplate rabbitTemplate;
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@Resource
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RabbitAdmin rabbitAdmin;
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/**
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* 发送TTL队列
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*
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* @param queueName 队列名称
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* @param params 消息内容
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* @param expiration 过期时间 毫秒
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*/
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public void sendTtlQueue(String queueName, Object params, Integer expiration) {
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/**
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* ----------------------------------先创建一个ttl队列--------------------------------------------
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*/
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Map<String, Object> map = new HashMap<>();
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// 队列设置存活时间，单位ms,必须是整形数据。
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map.put("x-message-ttl", expiration);
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/*参数1：队列名称 参数2：持久化 参数3：是否排他 参数4：自动删除队列 参数5：队列参数*/
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Queue queue = new Queue(queueName, true, false, false, map);
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rabbitAdmin.declareQueue(queue);
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/**
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* ---------------------------------创建交换机---------------------------------------------
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*/
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DirectExchange directExchange = new DirectExchange(TTL_EXCHANGE, true, false);
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rabbitAdmin.declareExchange(directExchange);
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/**
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* ---------------------------------队列绑定交换机---------------------------------------------
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*/
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// 将队列和交换机绑定
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Binding binding = BindingBuilder.bind(queue).to(directExchange).with(TTL_KEY);
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rabbitAdmin.declareBinding(binding);
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// 发送消息
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rabbitTemplate.convertAndSend(TTL_EXCHANGE, TTL_KEY, params);
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}
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}
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