自动配置
1、RabbitAutoConfiguration
2、有自动配置了连接工厂ConnectionFactory；
3、RabbitProperties 封装了 RabbitMQ的配置
4、RabbitTemplate ：给RabbitMQ发送和接受消息；
5、@EnableRabbit + @RabbitListener 监听消息队列的内容
1.引入依赖
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.bfxy</groupId> <artifactId>rabbitmq-springboot-producer</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>rabbitmq-springboot-producer</name> <description>rabbitmq-springboot-producer</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.2.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-amqp</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
2.yml配置
publisher-confirms,实现一个监听器用于 监听Broker端给我们返回的确认请求:RabbitTemplate.ConfirmCallback
publisher-returns,保证消息对Broker端是可达的，如果出现路由键不可达的情况，则使用监听器对不可达的消息进行后续的处理，保证消息的路由成功:Rabbit Template. ReturnCalllback
注意一点， 在发送消息的时候对template进行配置mandatory=true保证监听有效
生产端还可以配置其他属性，比如发送重试，超时时间、次数、间隔等
spring: rabbitmq: addresses: 192.168.254.129:5672 username: guest password: guest virtual-host: / connection-timeout: 15000 publisher-confirms: true #消息确认模式 publisher-returns: true #消息返回模式 template: mandatory: true
3.启动类添加注解@EnableRabbit
4.生产端配置类
package com.lq.springboot.producer; import java.util.Map; import com.lq.springboot.entity.Order; import org.springframework.amqp.rabbit.core.RabbitTemplate; import org.springframework.amqp.rabbit.core.RabbitTemplate.ConfirmCallback; import org.springframework.amqp.rabbit.core.RabbitTemplate.ReturnCallback; import org.springframework.amqp.rabbit.support.CorrelationData; 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; @Component public class RabbitSender { //自动注入RabbitTemplate模板类 @Autowired private RabbitTemplate rabbitTemplate; //回调函数: confirm确认 final ConfirmCallback confirmCallback = new RabbitTemplate.ConfirmCallback() { @Override public void confirm(CorrelationData correlationData, boolean ack, String cause) { System.err.println("correlationData: " + correlationData); System.err.println("ack: " + ack); if(!ack){ System.err.println("异常处理...."); }else{ System.out.println("更新数据库..."); } } }; //回调函数: return返回 final ReturnCallback returnCallback = new RabbitTemplate.ReturnCallback() { @Override public void returnedMessage(org.springframework.amqp.core.Message message, int replyCode, String replyText, String exchange, String routingKey) { System.err.println("return exchange: " + exchange + ", routingKey: " + routingKey + ", replyCode: " + replyCode + ", replyText: " + replyText); } }; //发送消息方法调用: 构建Message消息 public void send(Object message, Map<String, Object> properties) throws Exception { MessageHeaders mhs = new MessageHeaders(properties); Message msg = MessageBuilder.createMessage(message, mhs); rabbitTemplate.setConfirmCallback(confirmCallback); rabbitTemplate.setReturnCallback(returnCallback); //id + 时间戳 全局唯一 CorrelationData correlationData = new CorrelationData("1234567890"); rabbitTemplate.convertAndSend("exchange-1", "springboot.abc", msg, correlationData); } //发送消息方法调用: 构建自定义对象消息 public void sendOrder(Order order) throws Exception { rabbitTemplate.setConfirmCallback(confirmCallback); rabbitTemplate.setReturnCallback(returnCallback); //id + 时间戳 全局唯一 CorrelationData correlationData = new CorrelationData("0987654321"); rabbitTemplate.convertAndSend("exchange-2", "springboot.def", order, correlationData); } }
消费端properties
spring.rabbitmq.addresses=192.168.254.129:5672 spring.rabbitmq.username=guest spring.rabbitmq.password=guest spring.rabbitmq.virtual-host=/ spring.rabbitmq.connection-timeout=15000 #手动签收 spring.rabbitmq.listener.simple.acknowledge-mode=manual spring.rabbitmq.listener.simple.concurrency=5 spring.rabbitmq.listener.simple.max-concurrency=10 spring.rabbitmq.listener.order.queue.name=queue-2 spring.rabbitmq.listener.order.queue.durable=true spring.rabbitmq.listener.order.exchange.name=exchange-2 spring.rabbitmq.listener.order.exchange.durable=true spring.rabbitmq.listener.order.exchange.type=topic spring.rabbitmq.listener.order.exchange.ignoreDeclarationExceptions=true spring.rabbitmq.listener.order.key=springboot.*
消费监听类
package com.bfxy.springboot.conusmer; import java.util.Map; 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.RabbitHandler; import org.springframework.amqp.rabbit.annotation.RabbitListener; import org.springframework.amqp.support.AmqpHeaders; import org.springframework.messaging.Message; import org.springframework.messaging.handler.annotation.Headers; import org.springframework.messaging.handler.annotation.Payload; import org.springframework.stereotype.Component; import com.rabbitmq.client.Channel; @Component public class RabbitReceiver { @RabbitListener(bindings = @QueueBinding( value = @Queue(value = "queue-1", durable="true"), exchange = @Exchange(value = "exchange-1", durable="true", type= "topic", ignoreDeclarationExceptions = "true"), key = "springboot.*" ) ) /** * @deprecated : 自动创建队列和交换机并进行绑定 * @param order * @param channel * @param headers * @throws Exception */ @RabbitListener(bindings = @QueueBinding( value = @Queue(value = "${spring.rabbitmq.listener.order.queue.name}", durable="${spring.rabbitmq.listener.order.queue.durable}"), exchange = @Exchange(value = "${spring.rabbitmq.listener.order.exchange.name}", durable="${spring.rabbitmq.listener.order.exchange.durable}", type= "${spring.rabbitmq.listener.order.exchange.type}", ignoreDeclarationExceptions = "${spring.rabbitmq.listener.order.exchange.ignoreDeclarationExceptions}"), key = "${spring.rabbitmq.listener.order.key}" ) ) @RabbitHandler public void onMessage(Message message, Channel channel) throws Exception { System.err.println("--------------------------------------"); System.err.println("消费端Payload: " + message.getPayload()); Long deliveryTag = (Long)message.getHeaders().get(AmqpHeaders.DELIVERY_TAG); //手工ACK channel.basicAck(deliveryTag, false); } //接收java对象 @RabbitHandler public void onOrderMessage(@Payload com.bfxy.springboot.entity.Order order, Channel channel, @Headers Map<String, Object> headers) throws Exception { System.err.println("--------------------------------------"); System.err.println("消费端order: " + order.getId()); Long deliveryTag = (Long)headers.get(AmqpHeaders.DELIVERY_TAG); //手工ACK channel.basicAck(deliveryTag, false); } }
