必要网站用什么做的,上班没事做看什么网站,深圳网站建设三把火科技,上海网站建设域名回调函数confirm中的correlationDatanull
// 实现confirm回调,发送到和没发送到exchange,都触发
Override
public void confirm(CorrelationData correlationData, boolean ack, String cause) {// 参数说明:// correlationData: 相关数据,可以在发送消息时,进行设置该参数// …回调函数confirm中的correlationDatanull
// 实现confirm回调,发送到和没发送到exchange,都触发
Override
public void confirm(CorrelationData correlationData, boolean ack, String cause) {// 参数说明:// correlationData: 相关数据,可以在发送消息时,进行设置该参数// ack: 结果// cause: 原因if (ack) {log.info(【ConfirmCallback】消息已经送达Exchangeack已发);} else {ReturnedMessage message correlationData.getReturned();if (message ! null) {String msgData new String(message.getMessage().getBody());log.error(消息发送到 exchange {} 失败,原因: {},id: {}, routingKey: {},body: {}, message.getExchange(), cause, correlationData.getId(), message.getRoutingKey(), msgData);} else {log.error(消息发送 exchange 失败,原因: {},id: {}, correlationData.getId(),cause);}}
}解决办法
在convertAndSend方法中传入correlationData数据
SpringBootTest
class RabbitmqDemoApplicationTests {Testvoid contextLoads() {// 模拟消息BattleSubmitMqVo msg new BattleSubmitMqVo().setUserId(1L).setRoomId(123).setTimes(300L);// 工具类发送消息到mqMqUtil.sendMsgToMq(RabbitConfig.BATTLE_PAPER_EXCHANGE,RabbitConfig.BATTLE_PAPER_ROUTING_KEY, msg);}}工具类
package com.example.rabbitmqdemo.util;import cn.hutool.json.JSONUtil;
import com.sun.istack.internal.NotNull;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.core.MessagePostProcessor;
import org.springframework.amqp.core.ReturnedMessage;
import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;import javax.annotation.PostConstruct;/*** desc:** author qts* date 2023/11/3 0003*/
Component
public class MqUtil {private static RabbitTemplate rabbitTemplate;Autowiredprivate RabbitTemplate rabbitTemplate2;PostConstructpublic void init(){rabbitTemplate rabbitTemplate2;}/*** 发送消息并* 添加 CorrelationData数据* param exchange* param routingKey* param msg*/public static void sendMsgToMq(String exchange, String routingKey, Object msg){CorrelationData correlationData new CorrelationData();correlationData.setReturned(new ReturnedMessage(new Message(JSONUtil.toJsonStr(msg).getBytes()),1,1,exchange,routingKey));rabbitTemplate.convertAndSend(exchange,routingKey,msg,correlationData);}/*** 发送消息* 添加 CorrelationData数据, 消息后处理回调* param exchange* param routingKey* param msg* param messagePostProcessor 消息后处理回调*/public static void sendMsgToMq(String exchange, String routingKey, Object msg,MessagePostProcessor messagePostProcessor){CorrelationData correlationData new CorrelationData();correlationData.setReturned(new ReturnedMessage(new Message(JSONUtil.toJsonStr(msg).getBytes()),1,1,exchange,routingKey));rabbitTemplate.convertAndSend(exchange,routingKey,msg,messagePostProcessor,correlationData);}
}
效果
得到了值
springboot集成rabbitmq
