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<!-- 指定JDK编译版本 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>8</source>
<target>8</target>
</configuration>
</plugin>
<!-- https://mvnrepository.com/artifact/com.rabbitmq/amqp-client -->
<dependency>
<groupId>com.rabbitmq</groupId>
<artifactId>amqp-client</artifactId>
<version>5.13.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.11.0</version>
</dependency>
package cn.cnyasin.rabbit.utils; import com.rabbitmq.client.Channel; import com.rabbitmq.client.Connection; import com.rabbitmq.client.ConnectionFactory; public class RabbitMqUtils { public static Channel getChannel() throws Exception { // 创建连接工厂 ConnectionFactory factory = new ConnectionFactory(); // 配置 factory.setHost("192.168.3.202"); factory.setPort(5672); factory.setUsername("admin"); factory.setPassword("123456"); factory.setVirtualHost("/"); // 获取连接 Connection connection = factory.newConnection(); // 获取信道 Channel channel = connection.createChannel(); return channel; } }
package cn.cnyasin.rabbit.worker; import cn.cnyasin.rabbit.utils.RabbitMqUtils; import com.rabbitmq.client.Channel; public class Init { // 交换机名 public static final String EXCHANGE_NAME = "exchange01"; // 队列名 public static final String QUEUE_NAME = "queue01"; // 路由key public static final String ROUTING_KEY = "routing01"; public static void main(String[] args) throws Exception { // 获取信道 Channel channel = RabbitMqUtils.getChannel(); // 声明交换机 channel.exchangeDeclare(EXCHANGE_NAME, "direct", true); // 声明队列 channel.queueDeclare(QUEUE_NAME, true, false, false, null); // 绑定队列、交换机、路由key channel.queueBind(QUEUE_NAME, EXCHANGE_NAME, ROUTING_KEY); System.out.println("初始化成功。。。"); System.exit(0); } }
package cn.cnyasin.rabbit.worker; import cn.cnyasin.rabbit.utils.RabbitMqUtils; import com.rabbitmq.client.Channel; import com.rabbitmq.client.Delivery; /** * 工作队列01(消费者) */ public class Worker01 { // 定义本工作队列要处理的队列名字 public static final String QUEUE_NAME = "queue01"; public static void main(String[] args) throws Exception { // 获取信道 Channel channel = RabbitMqUtils.getChannel(); System.out.println("[*] 工作队列01正在等待接收消息。。。"); // 处理消息 channel.basicConsume( // 队列名 QUEUE_NAME, // 自动应答 true, // 成功处理消息回调 (String consumerTag, Delivery message) -> { // TODO 业务逻辑代码在这里 System.out.println(" [*] 成功处理消息:" + new String(message.getBody())); }, // 处理消息失败回调 (String consumerTag) -> { System.out.println("处理消息失败"); } ); } }
package cn.cnyasin.rabbit.worker; import cn.cnyasin.rabbit.utils.RabbitMqUtils; import com.rabbitmq.client.Channel; import java.util.Scanner; public class Task { // 交换机名 public static final String EXCHANGE_NAME = "exchange01"; // 路由key public static final String ROUTING_KEY = "routing01"; public static void main(String[] args) throws Exception { // 获取信道 Channel channel = RabbitMqUtils.getChannel(); // 接收控制台输入 Scanner scanner = new Scanner(System.in); System.out.println("[*] 等待控制台输入消息内容。。。"); while (scanner.hasNext()) { String input = scanner.next(); if (input.equals("exit")) { break; } // 发送消息 channel.basicPublish(EXCHANGE_NAME, ROUTING_KEY, null, input.getBytes()); System.out.println("[*] 消息发送成功。。。"); } channel.close(); System.out.println("[*] 用户退出。。。"); System.exit(0); } }
package cn.cnyasin.rabbit.ack; import cn.cnyasin.rabbit.utils.RabbitMqUtils; import com.rabbitmq.client.Channel; import com.rabbitmq.client.Delivery; /** * 工作队列01(消费者) */ public class Worker01 { // 定义本工作队列要处理的队列名字 public static final String QUEUE_NAME = "queue_ack"; public static void main(String[] args) throws Exception { // 获取信道 Channel channel = RabbitMqUtils.getChannel(); System.out.println("[*] 工作队列01正在等待接收消息。。。"); // 处理消息 channel.basicConsume( // 队列名 QUEUE_NAME, // 自动应答 false, // 成功处理消息回调 (String consumerTag, Delivery message) -> { try { // 沉睡1秒 Thread.sleep(1000 * 1); } catch (InterruptedException e) { e.printStackTrace(); } // TODO 业务逻辑代码在这里 System.out.println(" [*] 工作队列01成功处理消息:" + new String(message.getBody())); // TODO 手动应答 channel.basicAck(message.getEnvelope().getDeliveryTag(), false); }, // 处理消息失败回调 (String consumerTag) -> { System.out.println("处理消息失败"); } ); } }
package cn.cnyasin.rabbit.ack; import cn.cnyasin.rabbit.utils.RabbitMqUtils; import com.rabbitmq.client.Channel; import com.rabbitmq.client.Delivery; /** * 工作队列02(消费者) */ public class Worker02 { // 定义本工作队列要处理的队列名字 public static final String QUEUE_NAME = "queue_ack"; public static void main(String[] args) throws Exception { // 获取信道 Channel channel = RabbitMqUtils.getChannel(); System.out.println("[*] 工作队列02正在等待接收消息。。。"); // 处理消息 channel.basicConsume( // 队列名 QUEUE_NAME, // 自动应答 true, // 成功处理消息回调 (String consumerTag, Delivery message) -> { try { // 沉睡10秒 Thread.sleep(1000 * 10); } catch (InterruptedException e) { e.printStackTrace(); } // TODO 业务逻辑代码在这里 System.out.println(" [*] 工作队列02成功处理消息:" + new String(message.getBody())); // TODO 手动应答 channel.basicAck(message.getEnvelope().getDeliveryTag(), false); }, // 处理消息失败回调 (String consumerTag) -> { System.out.println("处理消息失败"); } ); } }
// 消息持久化
AMQP.BasicProperties properties = MessageProperties.PERSISTENT_TEXT_PLAIN;
// 发送消息
channel.basicPublish(EXCHANGE_NAME, ROUTING_KEY, properties, input.getBytes());
说明
核心代码
// 设置不公平分发
int prefetchCount = 1; // 预取值
channel.basicQos(prefetchCount);
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