1.application.yml
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server: port: 8184spring: application: name: rabbitmq-demo rabbitmq: host: 127.0.0.1 # ip地址 port: 5672 username: admin # 连接账号 password: 123456 # 连接密码 template: retry: enabled: true # 开启失败重试 initial-interval: 10000ms # 第一次重试的间隔时长 max-interval: 300000ms # 最长重试间隔，超过这个间隔将不再重试 multiplier: 2 # 下次重试间隔的倍数，此处是2即下次重试间隔是上次的2倍 exchange: topic.exchange # 缺省的交换机名称，此处配置后，发送消息如果不指定交换机就会使用这个 publisher-confirm-type: correlated # 生产者确认机制，确保消息会正确发送，如果发送失败会有错误回执，从而触发重试 publisher-returns: true listener: type: simple simple: acknowledge-mode: manual prefetch: 1 # 限制每次发送一条数据。 concurrency: 3 # 同一个队列启动几个消费者 max-concurrency: 3 # 启动消费者最大数量 # 重试策略相关配置 retry: enabled: true # 是否支持重试 max-attempts: 5 stateless: false multiplier: 1.0 # 时间策略乘数因子 initial-interval: 1000ms max-interval: 10000ms default-requeue-rejected: true |
2.pom.xml引入依赖
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<!-- rabbitmq --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-amqp</artifactId> </dependency> |
3.常量类创建
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/** * @author kkp * @ClassName RabbitMqConstants * @date 2021/11/3 14:16 * @Description */public class RabbitMqConstants { public final static String TEST1_QUEUE = "test1-queue"; public final static String TEST2_QUEUE = "test2-queue"; public final static String EXCHANGE_NAME = "test.topic.exchange"; /** * routingKey1 */ public final static String TOPIC_TEST1_ROUTINGKEY = "topic.test1.*"; public final static String TOPIC_TEST1_ROUTINGKEY_TEST = "topic.test1.test"; /** * routingKey1 */ public final static String TOPIC_TEST2_ROUTINGKEY = "topic.test2.*"; public final static String TOPIC_TEST2_ROUTINGKEY_TEST = "topic.test2.test";} |
4.配置Configuration
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import com.example.demo.common.RabbitMqConstants;import lombok.extern.slf4j.Slf4j;import org.springframework.amqp.core.*;import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;import org.springframework.amqp.rabbit.core.RabbitTemplate;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Qualifier;import org.springframework.beans.factory.config.ConfigurableBeanFactory;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.context.annotation.Scope;/** * @author kkp * @ClassName RabbitMqConfig * @date 2021/11/3 14:16 * @Description */@Slf4j@Configurationpublic class RabbitMqConfig { @Autowired private CachingConnectionFactory connectionFactory; /** * 声明交换机 */ @Bean(RabbitMqConstants.EXCHANGE_NAME) public Exchange exchange(){ //durable(true) 持久化，mq重启之后交换机还在 // Topic模式 //return ExchangeBuilder.topicExchange(RabbitMqConstants.EXCHANGE_NAME).durable(true).build(); //发布订阅模式 return ExchangeBuilder.fanoutExchange(RabbitMqConstants.EXCHANGE_NAME).durable(true).build(); } /** * 声明队列 * new Queue(QUEUE_EMAIL,true,false,false) * 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 */ @Bean(RabbitMqConstants.TEST1_QUEUE) public Queue esQueue() { return new Queue(RabbitMqConstants.TEST1_QUEUE); } /** * 声明队列 */ @Bean(RabbitMqConstants.TEST2_QUEUE) public Queue gitalkQueue() { return new Queue(RabbitMqConstants.TEST2_QUEUE); } /** * TEST1_QUEUE队列绑定交换机，指定routingKey */ @Bean public Binding bindingEs(@Qualifier(RabbitMqConstants.TEST1_QUEUE) Queue queue, @Qualifier(RabbitMqConstants.EXCHANGE_NAME) Exchange exchange) { return BindingBuilder.bind(queue).to(exchange).with(RabbitMqConstants.TOPIC_TEST1_ROUTINGKEY).noargs(); } /** * TEST2_QUEUE队列绑定交换机，指定routingKey */ @Bean public Binding bindingGitalk(@Qualifier(RabbitMqConstants.TEST2_QUEUE) Queue queue, @Qualifier(RabbitMqConstants.EXCHANGE_NAME) Exchange exchange) { return BindingBuilder.bind(queue).to(exchange).with(RabbitMqConstants.TOPIC_TEST2_ROUTINGKEY).noargs(); } /** * 如果需要在生产者需要消息发送后的回调， * 需要对rabbitTemplate设置ConfirmCallback对象， * 由于不同的生产者需要对应不同的ConfirmCallback， * 如果rabbitTemplate设置为单例bean， * 则所有的rabbitTemplate实际的ConfirmCallback为最后一次申明的ConfirmCallback。 * @return */ @Bean @Scope(ConfigurableBeanFactory.SCOPE_PROTOTYPE) public RabbitTemplate rabbitTemplate() { RabbitTemplate template = new RabbitTemplate(connectionFactory); return template; }} |
5.Rabbit工具类创建
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import lombok.extern.slf4j.Slf4j;import org.springframework.amqp.core.Message;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 java.util.UUID;/** * @author kkp * @ClassName RabbitMqUtils * @date 2021/11/3 14:21 * @Description */@Slf4j@Componentpublic class RabbitMqUtils implements RabbitTemplate.ConfirmCallback, RabbitTemplate.ReturnCallback{ private RabbitTemplate rabbitTemplate; /** * 构造方法注入 */ @Autowired public RabbitMqUtils(RabbitTemplate rabbitTemplate) { this.rabbitTemplate = rabbitTemplate; //这是是设置回调能收到发送到响应 rabbitTemplate.setConfirmCallback(this); //如果设置备份队列则不起作用 rabbitTemplate.setMandatory(true); rabbitTemplate.setReturnCallback(this); } /** * 回调确认 */ @Override public void confirm(CorrelationData correlationData, boolean ack, String cause) { if(ack){ log.info("消息发送成功：correlationData({}),ack({}),cause({})",correlationData,ack,cause); }else{ log.info("消息发送失败：correlationData({}),ack({}),cause({})",correlationData,ack,cause); } } /** * 消息发送到转换器的时候没有对列,配置了备份对列该回调则不生效 * @param message * @param replyCode * @param replyText * @param exchange * @param routingKey */ @Override public void returnedMessage(Message message, int replyCode, String replyText, String exchange, String routingKey) { log.info("消息丢失：exchange({}),route({}),replyCode({}),replyText({}),message:{}",exchange,routingKey,replyCode,replyText,message); } /** * 发送到指定Queue * @param queueName * @param obj */ public void send(String queueName, Object obj){ CorrelationData correlationId = new CorrelationData(UUID.randomUUID().toString()); this.rabbitTemplate.convertAndSend(queueName, obj, correlationId); } /** * 1、交换机名称 * 2、routingKey * 3、消息内容 */ public void sendByRoutingKey(String exChange, String routingKey, Object obj){ CorrelationData correlationId = new CorrelationData(UUID.randomUUID().toString()); this.rabbitTemplate.convertAndSend(exChange, routingKey, obj, correlationId); }} |
6.service创建
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public interface TestService { String sendTest1(String content); String sendTest2(String content);} |
7.impl实现
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import com.example.demo.common.RabbitMqConstants;import com.example.demo.util.RabbitMqUtils;import lombok.extern.slf4j.Slf4j;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;/** * @author kkp * @ClassName TestServiceImpl * @date 2021/11/3 14:24 * @Description */@Service@Slf4jpublic class TestServiceImpl implements TestService { @Autowired private RabbitMqUtils rabbitMqUtils; @Override public String sendTest1(String content) { rabbitMqUtils.sendByRoutingKey(RabbitMqConstants.EXCHANGE_NAME, RabbitMqConstants.TOPIC_TEST1_ROUTINGKEY_TEST, content); log.info(RabbitMqConstants.TOPIC_TEST1_ROUTINGKEY_TEST+"***************发送成功*****************"); return "发送成功！"; } @Override public String sendTest2(String content) { rabbitMqUtils.sendByRoutingKey(RabbitMqConstants.EXCHANGE_NAME, RabbitMqConstants.TOPIC_TEST2_ROUTINGKEY_TEST, content); log.info(RabbitMqConstants.TOPIC_TEST2_ROUTINGKEY_TEST+"***************发送成功*****************"); return "发送成功！"; }} |
8.监听类
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import com.example.demo.common.RabbitMqConstants;import lombok.extern.slf4j.Slf4j;import org.springframework.amqp.core.ExchangeTypes;import org.springframework.amqp.core.Message;import org.springframework.amqp.rabbit.annotation.Exchange;import org.springframework.amqp.rabbit.annotation.Queue;import org.springframework.amqp.rabbit.annotation.QueueBinding;import org.springframework.amqp.rabbit.annotation.RabbitListener;import org.springframework.stereotype.Component;import com.rabbitmq.client.Channel;/** * @author kkp * @ClassName RabbitMqListener * @date 2021/11/3 14:22 * @Description */@Slf4j@Componentpublic class RabbitMqListener { @RabbitListener(queues = RabbitMqConstants.TEST1_QUEUE) public void test1Consumer(Message message, Channel channel) { try { //手动确认消息已经被消费 channel.basicAck(message.getMessageProperties().getDeliveryTag(), false); log.info("Counsoum1消费消息：" + message.toString() + "。成功！"); } catch (Exception e) { e.printStackTrace(); log.info("Counsoum1消费消息：" + message.toString() + "。失败！"); } } @RabbitListener(queues = RabbitMqConstants.TEST2_QUEUE) public void test2Consumer(Message message, Channel channel) { try { //手动确认消息已经被消费 channel.basicAck(message.getMessageProperties().getDeliveryTag(), false); log.info("Counsoum2消费消息：" + message.toString() + "。成功！"); } catch (Exception e) { e.printStackTrace(); log.info("Counsoum2消费消息：" + message.toString() + "。失败！"); } }} |
9.Controller测试
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import com.example.demo.server.TestService;import jdk.nashorn.internal.objects.annotations.Getter;import lombok.extern.slf4j.Slf4j;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.*;import java.util.Map;/** * @author kkp * @ClassName TestController * @date 2021/11/3 14:25 * @Description */@Slf4j@RestController@RequestMapping("/enterprise")public class TestController { @Autowired private TestService testService; @GetMapping("/finance") public String hello3(@RequestParam(required = false) Map<String, Object> params) { return testService.sendTest2(params.get("entId").toString()); } /** * 发送消息test2 * @param content * @return */ @PostMapping(value = "/finance2") public String sendTest2(@RequestBody String content) { return testService.sendTest2(content); }} |
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原文链接：https://blog.csdn.net/weixin_44907173/article/details/121124048
