您好,登錄后才能下訂單哦!
怎樣理解RabbitMQ 3.9.7鏡像模式集群與Springboot 2.5.5,相信很多沒有經驗的人對此束手無策,為此本文總結了問題出現的原因和解決方法,通過這篇文章希望你能解決這個問題。
老話說的好:做人要懂得變通,善于思考,有時稍微轉個彎,也許問題就解決了。
言歸正傳,之前我們聊了 RabbitMQ 3.9.7 鏡像模式集群的搭建,今天我們來聊聊 RabbitMQ 3.9.7 鏡像模式集群與Springboot 2.5.5 整合。
服務器A IP:192.168.1.22
服務器B IP:192.168.1.8
服務器C IP:192.168.1.144
此三臺服務器上已搭建好了 RabbitMQ鏡像模式集群,鏡像模式集群的搭建,可參見我的上一篇文章。
<parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.5.5</version> <relativePath/> <!-- lookup parent from repository --> </parent>
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-amqp</artifactId> </dependency>
spring: rabbitmq: addresses: 192.168.1.22:5672,192.168.1.8:5672,192.168.1.144:5672 username: guest password: guest virtual-host: / connection-timeout: 16000 # 啟用消息確認模式 publisher-confirm-type: correlated # 啟用 return 消息模式 publisher-returns: true template: mandatory: true
import org.springframework.amqp.AmqpException; import org.springframework.amqp.core.MessagePostProcessor; import org.springframework.amqp.rabbit.connection.CorrelationData; import org.springframework.amqp.rabbit.core.RabbitTemplate; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.messaging.Message; import org.springframework.messaging.MessageHeaders; import org.springframework.messaging.support.MessageBuilder; import org.springframework.stereotype.Component; import java.util.Map; @Component public class Producer { @Autowired private RabbitTemplate rabbitTemplate; /** * 確認回調 */ final RabbitTemplate.ConfirmCallback confirmCallback = new RabbitTemplate.ConfirmCallback() { @Override public void confirm(CorrelationData correlationData, boolean ack, String cause) { // correlationData 唯一標識 // ack mq是否收到消息 // cause 失敗原因 System.out.println("correlationData:" + correlationData.getId()); System.out.println("ack:" + ack); System.out.println("cause:" + cause); } }; /** * 發送消息 * @param messageBody 消息體 * @param headers 附加屬性 * @throws Exception */ public void sendMessage(String messageBody, Map<String, Object> headers, String id) throws Exception { MessageHeaders messageHeaders = new MessageHeaders(headers); Message<String> message = MessageBuilder.createMessage(messageBody, messageHeaders); rabbitTemplate.setConfirmCallback(confirmCallback); String exchangeName = "exchange-hello"; String routingKey = "test.123"; CorrelationData correlationData = new CorrelationData(id); rabbitTemplate.convertAndSend(exchangeName, routingKey, message, new MessagePostProcessor() { /** * 發送消息后做的事情 * @param message * @return * @throws AmqpException */ @Override public org.springframework.amqp.core.Message postProcessMessage(org.springframework.amqp.core.Message message) throws AmqpException { return message; } }, correlationData); } }
spring: rabbitmq: addresses: 192.168.1.22:5672,192.168.1.8:5672,192.168.1.144:5672 username: guest password: guest virtual-host: / connection-timeout: 16000 listener: simple: # 設置為手工ACK acknowledge-mode: manual concurrency: 5 prefetch: 1 max-concurrency: 10
import com.rabbitmq.client.Channel; import org.springframework.amqp.rabbit.annotation.*; import org.springframework.amqp.support.AmqpHeaders; import org.springframework.messaging.Message; import org.springframework.stereotype.Component; @Component public class Consumer { @RabbitListener(bindings = @QueueBinding( value = @Queue(value = "queue-hello", durable = "true"), exchange = @Exchange(value = "exchange-hello" , durable = "true", type = "topic"), key = "test.*" )) @RabbitHandler public void onMessage(Message message, Channel channel) throws Exception { System.out.println("收到消息:" + message.getPayload()); Long deliveryTag = (Long)message.getHeaders().get(AmqpHeaders.DELIVERY_TAG); channel.basicAck(deliveryTag, false); } }
@RestController @RequestMapping("/mq") public class RabbitmqController { @Autowired private Producer producer; @GetMapping("/sendMessage") public String sendMessage(@RequestParam String messageBody, @RequestParam String id) throws Exception { Map<String, Object> headers = new HashMap<>(); producer.sendMessage(messageBody, headers, id); return "success"; } }
看完上述內容,你們掌握怎樣理解RabbitMQ 3.9.7鏡像模式集群與Springboot 2.5.5的方法了嗎?如果還想學到更多技能或想了解更多相關內容,歡迎關注億速云行業資訊頻道,感謝各位的閱讀!
免責聲明:本站發布的內容(圖片、視頻和文字)以原創、轉載和分享為主,文章觀點不代表本網站立場,如果涉及侵權請聯系站長郵箱:is@yisu.com進行舉報,并提供相關證據,一經查實,將立刻刪除涉嫌侵權內容。