消息队列中间件，RabbitMQ的使用，利用枚举实现队列，交换机，RountKey的声明
目录
1.声明队列和交换机以及RountKey
package com.hykj.dpp.dcn.configure; import lombok.Getter; @Getter public enum RabbitmqBind { /** * 接收信审推送清洗数据 */ DATA_CLEAN_PROCESS( RabbitMqExchangeEnum.E_DIRECT_RCP, RabbitMqQueueConstants.Q_DATA_CLEAN_PROCESS, RabbitmqRoutingKey.K_DATA_CLEAN_PROCESS, true), SMS_CLEAN( RabbitMqExchangeEnum.E_DIRECT_RCP, RabbitMqQueueConstants.Q_API_TO_DCN_SMS, RabbitmqRoutingKey.K_API_TO_DCN_SMS, true), LOAN_ACCOUNT_MODIFY( RabbitMqExchangeEnum.E_TOPIC_PAY, RabbitMqQueueConstants.Q_MODIFY_ACCOUNT, RabbitmqRoutingKey.K_MODIFY_ACCOUNT, true) ; /** * 交换机 */ private RabbitMqExchangeEnum exchange; /** * 队列名称 */ private String queueName; /** * 路由Key */ private RabbitmqRoutingKey routingKey; /** * 绑定标识 */ private Boolean isBind; RabbitmqBind(RabbitMqExchangeEnum exchange, String queueName, RabbitmqRoutingKey routingKey, Boolean isBind) { this.exchange = exchange; this.queueName = queueName; this.routingKey = routingKey; this.isBind = isBind; } /** * 交换机 */ @Getter public enum RabbitMqExchangeEnum { /** * 交换机定义，类型 - 名称 */ E_DIRECT_RCP("direct","E_DIRECT_RCP"), E_TOPIC_RCP("topic","E_TOPIC_RCP"), E_TOPIC_PAY("topic","E_TOPIC_PAY") ; private String exchangeType; private String exchangeName ; RabbitMqExchangeEnum(String exchangeType, String exchangeName) { this.exchangeType = exchangeType; this.exchangeName = exchangeName; } } /** * 队列名定义 */ public interface RabbitMqQueueConstants { /** * 接收清洗数据 */ String Q_DATA_CLEAN_PROCESS = "RMPS_TO_RCP_DATA_CLEAN_PROCESS"; /** * 清洗结束通知 */ String Q_DATA_CLEAN_FINISH = "RMPS_TO_RCP_DATA_CLEAN_FINISH"; String Q_API_TO_DCN_SMS = "Q_API_TO_DCN_SMS"; String Q_MODIFY_ACCOUNT = "PAY_TO_DPP_MODIFY_ACCOUNT"; } /** * routingKey */ @Getter public enum RabbitmqRoutingKey { /** * 路由 */ K_DATA_CLEAN_PROCESS("K_DATA_CLEAN_PROCESS"), K_DATA_CLEAN_FINISH("K_DATA_CLEAN_FINISH"), K_API_TO_DCN_SMS("K_API_TO_DCN_SMS"), K_MODIFY_ACCOUNT("#.K_MODIFY_ACCOUNT"); private String keyName; RabbitmqRoutingKey(String keyName) { this.keyName = keyName; } } }
2.初始化循环绑定
package com.hykj.dpp.dcn.configure; import org.springframework.amqp.core.Binding; import org.springframework.amqp.core.Exchange; import org.springframework.amqp.core.Queue; import org.springframework.amqp.rabbit.annotation.EnableRabbit; import org.springframework.amqp.rabbit.config.SimpleRabbitListenerContainerFactory; import org.springframework.amqp.rabbit.connection.ConnectionFactory; import org.springframework.amqp.rabbit.core.RabbitAdmin; import org.springframework.amqp.rabbit.core.RabbitTemplate; import org.springframework.amqp.rabbit.transaction.RabbitTransactionManager; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.autoconfigure.amqp.SimpleRabbitListenerContainerFactoryConfigurer; import org.springframework.boot.autoconfigure.condition.ConditionalOnClass; import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import javax.annotation.PostConstruct; import java.util.Arrays; @Configuration @ConditionalOnClass(EnableRabbit.class) public class RabbitConfiguration { @Autowired protected RabbitTemplate rabbitTemplate; @Autowired protected RabbitAdmin rabbitAdmin; public static final int DEFAULT_CONCURRENT = 10; @Bean("customContainerFactory") public SimpleRabbitListenerContainerFactory containerFactory(SimpleRabbitListenerContainerFactoryConfigurer configurer, ConnectionFactory connectionFactory) { SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory(); factory.setConcurrentConsumers(DEFAULT_CONCURRENT); factory.setMaxConcurrentConsumers(DEFAULT_CONCURRENT); configurer.configure(factory, connectionFactory); return factory; } @Bean @ConditionalOnMissingBean public RabbitTransactionManager rabbitTransactionManager(ConnectionFactory connectionFactory) { return new RabbitTransactionManager(connectionFactory); } @Bean @ConditionalOnMissingBean public RabbitAdmin rabbitAdmin(ConnectionFactory connectionFactory) { return new RabbitAdmin(connectionFactory); } @PostConstruct protected void init() { rabbitTemplate.setChannelTransacted(true); //创建exchange Arrays.stream(RabbitmqBind.RabbitMqExchangeEnum.values()) .forEach(rabbitMqExchangeEnum -> { Exchange exchange = RabbitmqExchange .getInstanceByType(rabbitMqExchangeEnum.getExchangeType()) .createExchange(rabbitMqExchangeEnum.getExchangeName()); rabbitAdmin.declareExchange(exchange); } ); //创建队列并绑定exchange Arrays.stream(RabbitmqBind.values()).forEach(RabbitmqBind -> { if(RabbitmqBind.getIsBind()){ rabbitAdmin.declareQueue(new Queue(RabbitmqBind.getQueueName(), true, false, false, null)); rabbitAdmin.declareBinding(new Binding(RabbitmqBind.getQueueName(), Binding.DestinationType.QUEUE, RabbitmqBind.getExchange().getExchangeName(), RabbitmqBind.getRoutingKey().getKeyName(), null)); } }); } }绑定的形式由枚举类中定义
3.监听队列
package com.hykj.dpp.dcn.mq.listener; import com.alibaba.fastjson.JSON; import com.hykj.dpp.common.constant.*; import com.hykj.dpp.common.model.RiskProcessLog; import com.hykj.dpp.common.service.RiskProcessLogService; import com.hykj.dpp.dcn.configure.RabbitmqBind; import com.hykj.dpp.dcn.mq.message.DataCleanMessage; import lombok.extern.slf4j.Slf4j; import org.apache.commons.lang3.StringUtils; import org.springframework.amqp.rabbit.annotation.RabbitHandler; import org.springframework.amqp.rabbit.annotation.RabbitListener; import org.springframework.stereotype.Component; import javax.annotation.Resource; /** * 数据清洗监听 */ @Slf4j @Component @RabbitListener(queues = { RabbitmqBind.RabbitMqQueueConstants.Q_DATA_CLEAN_PROCESS }, concurrency = "1-5", containerFactory = "customContainerFactory") public class DataCleanListener { @Resource private RiskProcessLogService riskProcessLogService; @RabbitHandler public void processMessage(String message) { log.info("DataClean recive message :{} ", message); process(message); } @RabbitHandler public void processMessage(byte[] message) { String msg = new String(message); log.info("DataClean recive message :{} ", msg); process(msg); } /** * 处理推送消息 * @param message */ private void process(String message) { if(StringUtils.isBlank(message)) { log.error("process message is blank , message:{}" , message); return; } try { DataCleanMessage dataCleanMessage = JSON.parseObject(message, DataCleanMessage.class); if(StringUtils.isAnyBlank(dataCleanMessage.getBusinessId(),dataCleanMessage.getCountry())) { log.error("parse message is blank"); return; } // 插入下个节点数据 RiskProcessLog processLog = new RiskProcessLog(); processLog.setBusinessId(dataCleanMessage.getBusinessId()); processLog.setCountry(Country.getCode(dataCleanMessage.getCountry())); processLog.setOrg(dataCleanMessage.getOrg()); processLog.setProfileType(ProfileType.prod.getCode()); processLog.setSysType(SysType.RMPS.getCode()); processLog.setServiceType(ServiceType.APPROVE.getCode()); processLog.setNodeId(NodeDef.DATA_CLEAN); processLog.setPostInd(PostInd.PENDING.name()); riskProcessLogService.save(processLog); } catch (Exception e) { log.error("process message appear exception: {}" , message, e); } } }监听并处理任务
原文地址：https://blog.csdn.net/qq_68135906/article/details/137562729
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