增加 spring cloud stream rabbitmq 示例

labx-10/labx-10-sc-stream-rabbitmq-consumer-ack/pom.xml

@@ -0,0 +1,58 @@
+<?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">
+    <parent>
+        <artifactId>labx-10</artifactId>
+        <groupId>cn.iocoder.springboot.labs</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>labx-10-sc-stream-rabbitmq-consumer-ack</artifactId>
+
+    <properties>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <spring.boot.version>2.2.4.RELEASE</spring.boot.version>
+        <spring.cloud.version>Hoxton.SR1</spring.cloud.version>
+    </properties>
+
+    <!--
+        引入 Spring Boot、Spring Cloud、Spring Cloud Alibaba 三者 BOM 文件，进行依赖版本的管理，防止不兼容。
+        在 https://dwz.cn/mcLIfNKt 文章中，Spring Cloud Alibaba 开发团队推荐了三者的依赖关系
+     -->
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-starter-parent</artifactId>
+                <version>${spring.boot.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring.cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <dependencies>
+        <!-- 引入 SpringMVC 相关依赖，并实现对其的自动配置 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <!-- 引入 Spring Cloud Stream RabbitMQ 相关依赖，将 RabbitMQ 作为消息队列，并实现对其的自动配置 -->
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>

labx-10/labx-10-sc-stream-rabbitmq-consumer-ack/src/main/java/cn/iocoder/springcloud/labx10/rabbitmqdemo/consumerdemo/ConsumerApplication.java

@@ -0,0 +1,16 @@
+package cn.iocoder.springcloud.labx10.rabbitmqdemo.consumerdemo;
+
+import cn.iocoder.springcloud.labx10.rabbitmqdemo.consumerdemo.listener.MySink;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.stream.annotation.EnableBinding;
+
+@SpringBootApplication
+@EnableBinding(MySink.class)
+public class ConsumerApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(ConsumerApplication.class, args);
+    }
+
+}

labx-10/labx-10-sc-stream-rabbitmq-consumer-ack/src/main/java/cn/iocoder/springcloud/labx10/rabbitmqdemo/consumerdemo/listener/Demo01Consumer.java

@@ -0,0 +1,39 @@
+package cn.iocoder.springcloud.labx10.rabbitmqdemo.consumerdemo.listener;
+
+import cn.iocoder.springcloud.labx10.rabbitmqdemo.consumerdemo.message.Demo01Message;
+import com.rabbitmq.client.Channel;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.amqp.support.AmqpHeaders;
+import org.springframework.cloud.stream.annotation.StreamListener;
+import org.springframework.messaging.handler.annotation.Header;
+import org.springframework.messaging.handler.annotation.Payload;
+import org.springframework.stereotype.Component;
+
+import java.io.IOException;
+import java.util.concurrent.atomic.AtomicInteger;
+
+@Component
+public class Demo01Consumer {
+
+    private Logger logger = LoggerFactory.getLogger(getClass());
+
+    private AtomicInteger index = new AtomicInteger();
+
+    @StreamListener(MySink.DEMO01_INPUT)
+    public void onMessage(@Payload Demo01Message message,
+                          @Header(AmqpHeaders.CHANNEL) Channel channel,
+                          @Header(AmqpHeaders.DELIVERY_TAG) long deliveryTag) throws IOException {
+        logger.info("[onMessage][线程编号:{} 消息内容：{}]", Thread.currentThread().getId(), message);
+        // 提交消费进度
+//        if (message.getId() % 2 == 1) {
+        if (index.incrementAndGet() % 2 == 1) {
+            // ack 确认消息
+            // 第二个参数 multiple ，用于批量确认消息，为了减少网络流量，手动确认可以被批处。
+            // 1. 当 multiple 为 true 时，则可以一次性确认 deliveryTag 小于等于传入值的所有消息
+            // 2. 当 multiple 为 false 时，则只确认当前 deliveryTag 对应的消息
+            channel.basicAck(deliveryTag, false);
+        }
+    }
+
+}

labx-10/labx-10-sc-stream-rabbitmq-consumer-ack/src/main/java/cn/iocoder/springcloud/labx10/rabbitmqdemo/consumerdemo/listener/MySink.java

@@ -0,0 +1,13 @@
+package cn.iocoder.springcloud.labx10.rabbitmqdemo.consumerdemo.listener;
+
+import org.springframework.cloud.stream.annotation.Input;
+import org.springframework.messaging.SubscribableChannel;
+
+public interface MySink {
+
+    String DEMO01_INPUT = "demo01-input";
+
+    @Input(DEMO01_INPUT)
+    SubscribableChannel demo01Input();
+
+}

labx-10/labx-10-sc-stream-rabbitmq-consumer-ack/src/main/java/cn/iocoder/springcloud/labx10/rabbitmqdemo/consumerdemo/message/Demo01Message.java

@@ -0,0 +1,29 @@
+package cn.iocoder.springcloud.labx10.rabbitmqdemo.consumerdemo.message;
+
+/**
+ * 示例 01 的 Message 消息
+ */
+public class Demo01Message {
+
+    /**
+     * 编号
+     */
+    private Integer id;
+
+    public Demo01Message setId(Integer id) {
+        this.id = id;
+        return this;
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    @Override
+    public String toString() {
+        return "Demo01Message{" +
+                "id=" + id +
+                '}';
+    }
+
+}

labx-10/labx-10-sc-stream-rabbitmq-consumer-ack/src/main/resources/application.yml

@@ -0,0 +1,35 @@
+spring:
+  application:
+    name: demo-consumer-application
+  cloud:
+    # Spring Cloud Stream 配置项，对应 BindingServiceProperties 类
+    stream:
+      # Binder 配置项，对应 BinderProperties Map
+      binders:
+        rabbit001:
+          type: rabbit # 设置 Binder 的类型
+          environment: # 设置 Binder 的环境配置
+            # 如果是 RabbitMQ 类型的时候，则对应的是 RabbitProperties 类
+            spring:
+              rabbitmq:
+                host: 127.0.0.1 # RabbitMQ 服务的地址
+                port: 5672 # RabbitMQ 服务的端口
+                username: guest # RabbitMQ 服务的账号
+                password: guest # RabbitMQ 服务的密码
+      # Binding 配置项，对应 BindingProperties Map
+      bindings:
+        demo01-input:
+          destination: DEMO-TOPIC-01 # 目的地。这里使用 RabbitMQ Exchange
+          content-type: application/json # 内容格式。这里使用 JSON
+          group: demo01-consumer-group-DEMO-TOPIC-01 # 消费者分组
+          binder: rabbit001  # 设置使用的 Binder 名字
+      # RabbitMQ 自定义 Binding 配置项，对应 RabbitBindingProperties Map
+      rabbit:
+        bindings:
+          demo01-input:
+            # RabbitMQ Consumer 配置项，对应 RabbitConsumerProperties 类
+            consumer:
+              acknowledge-mode: MANUAL # 消费消息的确认模式，默认为 AUTO 自动确认
+
+server:
+  port: ${random.int[10000,19999]} # 随机端口，方便启动多个消费者

labx-10/pom.xml

@@ -38,6 +38,9 @@
 
         <module>labx-10-sc-stream-rabbitmq-producer-transaction</module>
         <!--搭配 <module>labx-10-sc-stream-rabbitmq-consumer-demo</module> 作为消费者-->
+
+        <!--搭配 <module>labx-10-sc-stream-rabbitmq-producer-demo</module> 作为生产者-->
+        <module>labx-10-sc-stream-rabbitmq-consumer-ack</module>
     </modules>