com.emily.infrastructure.rabbitmq.example.amqp.delay.config.RabbitDelayConfig Maven / Gradle / Ivy
package com.emily.infrastructure.rabbitmq.example.amqp.delay.config;
import com.google.common.collect.Maps;
import org.springframework.amqp.core.*;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import java.util.HashMap;
import java.util.Map;
/**
* RabbitMQ生产者交换器、绑定、队列声明
*
* @since 1.0
*/
@SuppressWarnings("all")
@Configuration
public class RabbitDelayConfig {
/**
* 交换器
*/
public static final String DELAY_TEST_EXCHANGE = "delay.test.exchange";
/**
* 队列
*/
public static final String DELAY_TEST_QUEUE = "delay_test_queue";
/**
* 路由
*/
public static final String DELAY_TEST_ROUTING_KEY = "delay.test.routing.key";
/**
* 声明延时队列
*
* @return Queue对象
*/
@Bean
public Queue delayQueue() {
Map args = Maps.newHashMap();
/**
* 定义优先级队列，消息最大优先级为15，优先级范围为0-15，数字越大优先级越高
*/
args.put("x-max-priority", 15);
/**
* 设置持久化队列
*/
return QueueBuilder.durable(DELAY_TEST_QUEUE).withArguments(args).build();
}
/**
* 延时队列交换器
* 注意：
* 1.交换器类是CustomExchange
* 2.交换器类型是x-delayed-message
*
* @return CustomExchange对象
*/
@Bean
public CustomExchange delayExchange() {
Map args = new HashMap<>();
/**
* 设置自定义交换器路由消息的类型，direct类似direct交换器路由消息的模式，也可以传递topic、fanout,或者其它插件提供的自定义的交换器类型
*/
args.put("x-delayed-type", "topic");
return new CustomExchange(DELAY_TEST_EXCHANGE, "x-delayed-message", true, false, args);
}
/**
* 延迟队列绑定交换器
*
* @return Binding对象
*/
@Bean
public Binding bindingDelayCustomExchangeQueue() {
return BindingBuilder.bind(delayQueue()).to(delayExchange()).with(DELAY_TEST_ROUTING_KEY).noargs();
}
}