下面将进行代码示例：
一、SpringBoot环境配置
1.xml
<dependencies><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>5.1.7.RELEASE</version></dependency><dependency><groupId>org.springframework.amqp</groupId><artifactId>spring-rabbit</artifactId><version>2.1.8.RELEASE</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>5.1.7.RELEASE</version></dependency></dependencies><!--打包jar--><build><finalName>service-common-crm</finalName><plugins><!--spring-boot-maven-plugin--><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><!--解决打包出来的jar文件中没有主清单属性问题--><executions><execution><goals><goal>repackage</goal></goals></execution></executions></plugin></plugins></build>
2.rabbitmq.properties配置文件
rabbitmq.host=124.71.7.200
rabbitmq.port=5672
rabbitmq.username=azhi
rabbitmq.password=2021888
rabbitmq.virtual-host=vh_test
3.Bean容器,生产者spring-rabbitmq-producer.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:rabbit="http://www.springframework.org/schema/rabbit"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/rabbit
http://www.springframework.org/schema/rabbit/spring-rabbit.xsd">
<!--加载配置文件-->
<context:property-placeholder location="classpath:rabbitmq.properties"/>
<!-- 定义rabbitmq connectionFactory -->
<rabbit:connection-factory id="connectionFactory" host="${rabbitmq.host}"
port="${rabbitmq.port}"
username="${rabbitmq.username}"
password="${rabbitmq.password}"
virtual-host="${rabbitmq.virtual-host}"
publisher-confirms="true"
publisher-returns="true"
/>
<!--定义管理交换机、队列-->
<rabbit:admin connection-factory="connectionFactory"/>
<!--定义rabbitTemplate对象操作可以在代码中方便发送消息-->
<rabbit:template id="rabbitTemplate" connection-factory="connectionFactory"/>
<!--####################################消息可靠性投递 开始 ################################-->
<!--消息可靠性投递（生产端）-->
<rabbit:queue id="test_queue_confirm" name="test_queue_confirm"></rabbit:queue>
<rabbit:direct-exchange name="test_exchange_confirm">
<rabbit:bindings>
<rabbit:binding queue="test_queue_confirm" key="confirm"></rabbit:binding>
</rabbit:bindings>
</rabbit:direct-exchange>
<!--######################################消息可靠性投递 结束 ##########################################-->
<!--####################################TTL 开始 ################################-->
<!--ttl-->
<rabbit:queue name="test_queue_ttl" id="test_queue_ttl">
<!--设置queue的参数-->
<rabbit:queue-arguments>
<!--x-message-ttl指队列的过期时间-->
<entry key="x-message-ttl" value="10000" value-type="java.lang.Integer"></entry>
</rabbit:queue-arguments>
</rabbit:queue>
<rabbit:topic-exchange name="test_exchange_ttl" >
<rabbit:bindings>
<rabbit:binding pattern="ttl.#" queue="test_queue_ttl"></rabbit:binding>
</rabbit:bindings>
</rabbit:topic-exchange>
<!--######################################TTL 结束 ##########################################-->
<!--#######################################死信队列 开始 #########################################-->
<!--
死信队列：
1. 声明正常的队列(test_queue_dlx)和交换机(test_exchange_dlx)
2. 声明死信队列(queue_dlx)和死信交换机(exchange_dlx)
3. 正常队列绑定死信交换机
设置两个参数：
* x-dead-letter-exchange：死信交换机名称
* x-dead-letter-routing-key：发送给死信交换机的routingkey
-->
<!--
1. 声明正常的队列(test_queue_dlx)和交换机(test_exchange_dlx)
-->
<rabbit:queue name="test_queue_dlx" id="test_queue_dlx">
<!--3. 正常队列绑定死信交换机-->
<rabbit:queue-arguments>
<!--3.1 x-dead-letter-exchange：死信交换机名称-->
<entry key="x-dead-letter-exchange" value="exchange_dlx" />
<!--3.2 x-dead-letter-routing-key：发送给死信交换机的routingkey-->
<entry key="x-dead-letter-routing-key" value="dlx.hehe" />
<!--4.1 设置队列的过期时间 ttl-->
<entry key="x-message-ttl" value="10000" value-type="java.lang.Integer" />
<!--4.2 设置队列的长度限制 max-length-->
<entry key="x-max-length" value="10" value-type="java.lang.Integer" />
</rabbit:queue-arguments>
</rabbit:queue>
<rabbit:topic-exchange name="test_exchange_dlx">
<rabbit:bindings>
<rabbit:binding pattern="test.dlx.#" queue="test_queue_dlx"></rabbit:binding>
</rabbit:bindings>
</rabbit:topic-exchange>
<!--
2. 声明死信队列(queue_dlx)和死信交换机(exchange_dlx)
-->
<rabbit:queue name="queue_dlx" id="queue_dlx"></rabbit:queue>
<rabbit:topic-exchange name="exchange_dlx">
<rabbit:bindings>
<rabbit:binding pattern="dlx.#" queue="queue_dlx"></rabbit:binding>
</rabbit:bindings>
</rabbit:topic-exchange>
<!--######################################死信队列 结束##########################################-->
<!--########################################延迟队列 开始########################################-->
<!--
延迟队列：
1. 定义正常交换机（order_exchange）和队列(order_queue)
2. 定义死信交换机（order_exchange_dlx）和队列(order_queue_dlx)
3. 绑定，设置正常队列过期时间为30分钟
-->
<!-- 1. 定义正常交换机（order_exchange）和队列(order_queue)-->
<rabbit:queue id="order_queue" name="order_queue">
<!--3. 绑定，设置正常队列过期时间为30分钟-->
<rabbit:queue-arguments>
<entry key="x-dead-letter-exchange" value="order_exchange_dlx" />
<entry key="x-dead-letter-routing-key" value="dlx.order.cancel" />
<entry key="x-message-ttl" value="10000" value-type="java.lang.Integer" />
</rabbit:queue-arguments>
</rabbit:queue>
<rabbit:topic-exchange name="order_exchange">
<rabbit:bindings>
<rabbit:binding pattern="order.#" queue="order_queue"></rabbit:binding>
</rabbit:bindings>
</rabbit:topic-exchange>
<!--2. 定义死信交换机（order_exchange_dlx）和队列(order_queue_dlx)-->
<rabbit:queue id="order_queue_dlx" name="order_queue_dlx"></rabbit:queue>
<rabbit:topic-exchange name="order_exchange_dlx">
<rabbit:bindings>
<rabbit:binding pattern="dlx.order.#" queue="order_queue_dlx"></rabbit:binding>
</rabbit:bindings>
</rabbit:topic-exchange>
<!--######################################延迟队列 结束 ##########################################-->
</beans>
4.Bean窗口,消费者spring-rabbitmq-consumer.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:rabbit="http://www.springframework.org/schema/rabbit"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/rabbit
http://www.springframework.org/schema/rabbit/spring-rabbit.xsd">
<!--加载配置文件-->
<context:property-placeholder location="classpath:rabbitmq.properties"/>
<!-- 定义rabbitmq connectionFactory -->
<rabbit:connection-factory id="connectionFactory" host="${rabbitmq.host}"
port="${rabbitmq.port}"
username="${rabbitmq.username}"
password="${rabbitmq.password}"
virtual-host="${rabbitmq.virtual-host}"/>
<context:component-scan base-package="com.baiqi.listener" />
<!--定义监听器容器
acknowledge="manual":手动签收
prefetch="1":每次抓取多少条消息
-->
<!--定义监听器容器 acknowledge="manual" prefetch="1" -->
<rabbit:listener-container connection-factory="connectionFactory" acknowledge="manual">
<rabbit:listener ref="ackListener" queue-names="test_queue_confirm"></rabbit:listener>
<!--<rabbit:listener ref="qosListener" queue-names="test_queue_confirm"></rabbit:listener>-->
<!--定义监听器，监听正常队列-->
<!--<rabbit:listener ref="dlxListener" queue-names="test_queue_dlx"></rabbit:listener>-->
<!--延迟队列效果实现： 一定要监听的是 死信队列！！！-->
<rabbit:listener ref="orderListener" queue-names="order_queue_dlx"></rabbit:listener>
</rabbit:listener-container>
</beans>
二、生产者测试代码
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:spring-rabbitmq-producer.xml")
public class ProducerTest {
@Autowired
private RabbitTemplate rabbitTemplate;
//测试 Confirm 模式
@Test
public void testConfirm() {
//定义回调
rabbitTemplate.setConfirmCallback(new RabbitTemplate.ConfirmCallback() {
/**
*
* @param correlationData 相关配置信息
* @param ack exchange交换机 是否成功收到了消息。true 成功，false代表失败
* @param cause 失败原因
*/
@Override
public void confirm(CorrelationData correlationData, boolean ack, String cause) {
//System.out.println("confirm方法被执行了...."+correlationData.getId());
//ack 为 true表示 消息已经到达交换机
if (ack) {
//接收成功
System.out.println("接收成功消息" + cause);
} else {
//接收失败
System.out.println("接收失败消息" + cause);
//做一些处理，让消息再次发送。
}
}
});
//进行消息发送
for (int i = 0; i < 5; i++) {
rabbitTemplate.convertAndSend("test_exchange_confirm", "confirm", "message Confirm...");
}
//进行睡眠操作
try {
Thread.sleep(1000);
} catch (Exception e) {
e.printStackTrace();
}
}
//测试 return模式
@Test
public void testReturn() {
//设置交换机处理失败消息的模式 为true的时候，消息达到不了 队列时，会将消息重新返回给生产者
rabbitTemplate.setMandatory(true);
//定义回调
rabbitTemplate.setReturnCallback(new RabbitTemplate.ReturnCallback() {
/**
*
* @param message 消息对象
* @param replyCode 错误码
* @param replyText 错误信息
* @param exchange 交换机
* @param routingKey 路由键
*/
@Override
public void returnedMessage(Message message, int replyCode, String replyText, String exchange, String routingKey) {
System.out.println("return 执行了....");
System.out.println("message:" + message);
System.out.println("replyCode:" + replyCode);
System.out.println("replyText:" + replyText);
System.out.println("exchange:" + exchange);
System.out.println("routingKey:" + routingKey);
//处理
}
});
//进行消息发送
rabbitTemplate.convertAndSend("test_exchange_confirm", "confirm11", "message return...");
//进行睡眠操作
try {
Thread.sleep(5000);
} catch (Exception e) {
e.printStackTrace();
}
}
//批量发送消息，让消费者每次拉去指定的数量
@Test
public void testQos() {
for (int i = 0; i < 10; i++) {
// 发送消息
rabbitTemplate.convertAndSend("test_exchange_confirm", "confirm", "message confirm....");
}
}
/**
* TTL:过期时间
* 1. 队列统一过期
* <p>
* 2. 消息单独过期
* <p>
* <p>
* 如果设置了消息的过期时间，也设置了队列的过期时间，它以时间短的为准。
* 队列过期后，会将队列所有消息全部移除。
* 消息过期后，只有消息在队列顶端，才会判断其是否过期(移除掉)
*/
@Test
public void testTtl() {
for (int i = 0; i < 10; i++) {
// 发送消息
rabbitTemplate.convertAndSend("test_exchange_ttl", "ttl.baiqi", "message ttl....");
}
}
/**
* 发送测试死信消息：
* 1. 过期时间
* 2. 长度限制
* 3. 消息拒收
*/
@Test
public void testDlx() {
//1. 测试过期时间，死信消息
rabbitTemplate.convertAndSend("test_exchange_dlx", "test.dlx.hehe", "死信消息测试1，开始...");
//2. 测试长度限制后，消息死信
/* for (int i = 0; i < 20; i++) {
rabbitTemplate.convertAndSend("test_exchange_dlx","test.dlx.hehe","死信消息测试2，开始...");
}*/
//3. 测试消息拒收
//rabbitTemplate.convertAndSend("test_exchange_dlx","test.dlx.baiqi","死信消息测试3，开始...");
}
/*
* 测试延时消息
* */
@Test
public void testDelay() throws InterruptedException {
//1.发送订单消息。 将来是在订单系统中，下单成功后，发送消息
rabbitTemplate.convertAndSend("order_exchange", "order.msg", "订单信息：id=1,time=2020年12月...");
//2.打印倒计时10秒
for (int i = 10; i > 0; i--) {
System.out.println(i + "...");
Thread.sleep(1000);
}
}
}
执行testConfirm结果
执行testReturn结果
三、消费者测试代码
1.初始化IOC容器
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Test {
public static void main(String[] args) {
//初始化IOC容器
ApplicationContext ctx = new ClassPathXmlApplicationContext("classpath:spring-rabbitmq-consumer.xml");
}
}
2.AckListener类
import com.rabbitmq.client.Channel;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.listener.api.ChannelAwareMessageListener;
import org.springframework.stereotype.Component;
/**
*/
@Component
public class AckListener implements ChannelAwareMessageListener {
@Override
public void onMessage(Message message, Channel channel) throws Exception {
//1、获取消息的id
long deliveryTag = message.getMessageProperties().getDeliveryTag();
try {
//2、获取消息
System.out.println("message:"+new String(message.getBody()));
//3、进行业务处理
System.out.println("=====进行业务处理====");
//模拟出现异常
//int i = 5/0;
//4、进行消息签收
//channel.basicAck(deliveryTag, false);
System.out.println("收到了消息:"+deliveryTag);
} catch (Exception e) {
//拒绝签收
/*
第三个参数：requeue：重回队列。如果设置为true，则消息重新回到queue，broker会重新发送该消息给消费端
*/
// channel.basicNack(deliveryTag, false, true);
}
}
}
3.DlxListener类
import com.rabbitmq.client.Channel;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.listener.api.ChannelAwareMessageListener;
import org.springframework.stereotype.Component;
@Component
public class DlxListener implements ChannelAwareMessageListener {
@Override
public void onMessage(Message message, Channel channel) throws Exception {
long deliveryTag = message.getMessageProperties().getDeliveryTag();
try {
//1.接收转换消息
System.out.println(new String(message.getBody()));
//2. 处理业务逻辑
System.out.println("处理业务逻辑...");
//int i = 3/0;//出现错误
//3. 手动签收
channel.basicAck(deliveryTag,true);
} catch (Exception e) {
//e.printStackTrace();
System.out.println("出现异常，拒绝接受");
//4.拒绝签收，不重回队列 requeue=false
channel.basicNack(deliveryTag,true,false);
}
}
}
4.OrderListener类
import com.rabbitmq.client.Channel;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.listener.api.ChannelAwareMessageListener;
import org.springframework.stereotype.Component;
@Component
public class OrderListener implements ChannelAwareMessageListener {
@Override
public void onMessage(Message message, Channel channel) throws Exception {
long deliveryTag = message.getMessageProperties().getDeliveryTag();
try {
//1.接收转换消息
System.out.println(new String(message.getBody()));
//2. 处理业务逻辑
System.out.println("处理业务逻辑...");
System.out.println("根据订单id查询其状态...");
System.out.println("判断状态是否为支付成功");
System.out.println("取消订单，回滚库存....");
//3. 手动签收
channel.basicAck(deliveryTag,true);
} catch (Exception e) {
//e.printStackTrace();
System.out.println("出现异常，拒绝接受");
//4.拒绝签收，不重回队列 requeue=false
channel.basicNack(deliveryTag,true,false);
}
}
}
5.QosListener类
import com.rabbitmq.client.Channel;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.listener.api.ChannelAwareMessageListener;
import org.springframework.stereotype.Component;
/**
*/
@Component
public class QosListener implements ChannelAwareMessageListener {
@Override
public void onMessage(Message message, Channel channel) throws Exception {
//获取到的消息
System.out.println(new String(message.getBody()));
Thread.sleep(1000);
//处理业务逻辑
//进行消息的签收
//channel.basicAck(message.getMessageProperties().getDeliveryTag(),true);
}
}
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