1、在application.yml文件中进行RabbitMQ的相关配置
先上代码
spring: rabbitmq: host: 192168.21.11 port: 5672 username: guest password: password publisher-confirms: true # 消息发送到交换机确认机制,是否确认回调
2. 项目启动配置
大家可以看到上图中的config包,这里就是相关配置类
下面,就这三个配置类,做下说明:(这里需要大家对RabbitMQ有一定的了解,知道生产者、消费者、消息交换机、队列等)
ExchangeConfig 消息交换机配置
package com.space.rabbitmq.config; import org.springframework.amqp.core.DirectExchange; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; /** * 消息交换机配置 可以配置多个 * @author zhuzhe * @date 2018/5/25 15:40 * @email [email protected] */ @Configuration public class ExchangeConfig { /** * 1.定义direct exchange,绑定queueTest * 2.durable="true" rabbitmq重启的时候不需要创建新的交换机 * 3.direct交换器相对来说比较简单,匹配规则为:如果路由键匹配,消息就被投送到相关的队列 * fanout交换器中没有路由键的概念,他会把消息发送到所有绑定在此交换器上面的队列中。 * topic交换器你采用模糊匹配路由键的原则进行转发消息到队列中 * key: queue在该direct-exchange中的key值,当消息发送给direct-exchange中指定key为设置值时, * 消息将会转发给queue参数指定的消息队列 */ @Bean public DirectExchange directExchange(){ DirectExchange directExchange = new DirectExchange(RabbitMqConfig.EXCHANGE,true,false); return directExchange; } }
QueueConfig 队列配置
package com.space.rabbitmq.config; import org.springframework.amqp.core.Queue; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; /** * 队列配置 可以配置多个队列 * @author zhuzhe * @date 2018/5/25 13:25 * @email [email protected] */ @Configuration public class QueueConfig { @Bean public Queue firstQueue() { /** durable="true" 持久化 rabbitmq重启的时候不需要创建新的队列 auto-delete 表示消息队列没有在使用时将被自动删除 默认是false exclusive 表示该消息队列是否只在当前connection生效,默认是false */ return new Queue("first-queue",true,false,false); } @Bean public Queue secondQueue() { return new Queue("second-queue",true,false,false); } }
RabbitMqConfig RabbitMq配置
package com.space.rabbitmq.config; import com.space.rabbitmq.mqcallback.MsgSendConfirmCallBack; import org.springframework.amqp.core.AcknowledgeMode; import org.springframework.amqp.core.Binding; import org.springframework.amqp.core.BindingBuilder; import org.springframework.amqp.rabbit.connection.ConnectionFactory; import org.springframework.amqp.rabbit.core.RabbitTemplate; import org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; /** * RabbitMq配置 * @author zhuzhe * @date 2018/5/25 13:37 * @email [email protected] */ @Configuration public class RabbitMqConfig { /** 消息交换机的名字*/ public static final String EXCHANGE = "exchangeTest"; /** 队列key1*/ public static final String ROUTINGKEY1 = "queue_one_key1"; /** 队列key2*/ public static final String ROUTINGKEY2 = "queue_one_key2"; @Autowired private QueueConfig queueConfig; @Autowired private ExchangeConfig exchangeConfig; /** * 连接工厂 */ @Autowired private ConnectionFactory connectionFactory; /** 将消息队列1和交换机进行绑定 */ @Bean public Binding binding_one() { return BindingBuilder.bind(queueConfig.firstQueue()).to(exchangeConfig.directExchange()).with(RabbitMqConfig.ROUTINGKEY1); } /** * 将消息队列2和交换机进行绑定 */ @Bean public Binding binding_two() { return BindingBuilder.bind(queueConfig.secondQueue()).to(exchangeConfig.directExchange()).with(RabbitMqConfig.ROUTINGKEY2); } /** * queue listener 观察 监听模式 * 当有消息到达时会通知监听在对应的队列上的监听对象 * @return */ @Bean public SimpleMessageListenerContainer simpleMessageListenerContainer_one(){ SimpleMessageListenerContainer simpleMessageListenerContainer = new SimpleMessageListenerContainer(connectionFactory); simpleMessageListenerContainer.addQueues(queueConfig.firstQueue()); simpleMessageListenerContainer.setExposeListenerChannel(true); simpleMessageListenerContainer.setMaxConcurrentConsumers(5); simpleMessageListenerContainer.setConcurrentConsumers(1); simpleMessageListenerContainer.setAcknowledgeMode(AcknowledgeMode.MANUAL); //设置确认模式手工确认 return simpleMessageListenerContainer; } /** * 定义rabbit template用于数据的接收和发送 * @return */ @Bean public RabbitTemplate rabbitTemplate() { RabbitTemplate template = new RabbitTemplate(connectionFactory); /**若使用confirm-callback或return-callback, * 必须要配置publisherConfirms或publisherReturns为true * 每个rabbitTemplate只能有一个confirm-callback和return-callback */ template.setConfirmCallback(msgSendConfirmCallBack()); //template.setReturnCallback(msgSendReturnCallback()); /** * 使用return-callback时必须设置mandatory为true,或者在配置中设置mandatory-expression的值为true, * 可针对每次请求的消息去确定’mandatory’的boolean值, * 只能在提供’return -callback’时使用,与mandatory互斥 */ // template.setMandatory(true); return template; } /** * 消息确认机制 * Confirms给客户端一种轻量级的方式,能够跟踪哪些消息被broker处理, * 哪些可能因为broker宕掉或者网络失败的情况而重新发布。 * 确认并且保证消息被送达,提供了两种方式:发布确认和事务。(两者不可同时使用) * 在channel为事务时,不可引入确认模式;同样channel为确认模式下,不可使用事务。 * @return */ @Bean public MsgSendConfirmCallBack msgSendConfirmCallBack(){ return new MsgSendConfirmCallBack(); } }
消息回调
package com.space.rabbitmq.mqcallback; import org.springframework.amqp.rabbit.core.RabbitTemplate; import org.springframework.amqp.rabbit.support.CorrelationData; /** * 消息发送到交换机确认机制 * @author zhuzhe * @date 2018/5/25 15:53 * @email [email protected] */ public class MsgSendConfirmCallBack implements RabbitTemplate.ConfirmCallback { @Override public void confirm(CorrelationData correlationData, boolean ack, String cause) { System.out.println("MsgSendConfirmCallBack , 回调id:" + correlationData); if (ack) { System.out.println("消息消费成功"); } else { System.out.println("消息消费失败:" + cause+"\n重新发送"); } } }
生产者/消息发送者
package com.space.rabbitmq.sender; import com.space.rabbitmq.config.RabbitMqConfig; import lombok.extern.slf4j.Slf4j; import org.springframework.amqp.rabbit.core.RabbitTemplate; import org.springframework.amqp.rabbit.support.CorrelationData; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; import java.util.UUID; /** * 消息发送 生产者1 * @author zhuzhe * @date 2018/5/25 14:28 * @email [email protected] */ @Slf4j @Component public class FirstSender { @Autowired private RabbitTemplate rabbitTemplate; /** * 发送消息 * @param uuid * @param message 消息 */ public void send(String uuid,Object message) { CorrelationData correlationId = new CorrelationData(uuid); rabbitTemplate.convertAndSend(RabbitMqConfig.EXCHANGE, RabbitMqConfig.ROUTINGKEY2, message, correlationId); } }
消费者
package com.space.rabbitmq.receiver; import org.springframework.amqp.rabbit.annotation.RabbitListener; import org.springframework.stereotype.Component; /** * 消息消费者1 * @author zhuzhe * @date 2018/5/25 17:32 * @email [email protected] */ @Component public class FirstConsumer { @RabbitListener(queues = {"first-queue","second-queue"}, containerFactory = "rabbitListenerContainerFactory") public void handleMessage(String message) throws Exception { // 处理消息 System.out.println("FirstConsumer {} handleMessage :"+message); } }
测试
package com.space.rabbitmq.controller; import com.space.rabbitmq.sender.FirstSender; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController; import java.util.UUID; /** * @author zhuzhe * @date 2018/5/25 16:00 * @email [email protected] */ @RestController public class SendController { @Autowired private FirstSender firstSender; @GetMapping("/send") public String send(String message){ String uuid = UUID.randomUUID().toString(); firstSender.send(uuid,message); return uuid; } }
package com.space.rabbitmq.controller;
import com.space.rabbitmq.sender.FirstSender;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.UUID;
/**
* @author zhuzhe
* @date 2018/5/25 16:00
* @email [email protected]
*/
@RestController
public class SendController {
@Autowired
private FirstSender firstSender;
@GetMapping("/send")
public String send(String message){
String uuid = UUID.randomUUID().toString();
firstSender.send(uuid,message);
return uuid;
}
}
原文地址:https://www.cnblogs.com/yingsong/p/9791159.html