Work queues

pom.xml

<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.mq</groupId>
   <artifactId>mq</artifactId>
   <version>0.0.1-SNAPSHOT</version>
   <dependencies>
       <dependency>
           <groupId>com.rabbitmq</groupId>
           <artifactId>amqp-client</artifactId>
           <version>4.0.2</version>
       </dependency>
       <dependency>
           <groupId>org.slf4j</groupId>
           <artifactId>slf4j-api</artifactId>
           <version>1.7.10</version>
       </dependency>
       <dependency>
           <groupId>org.slf4j</groupId>
           <artifactId>slf4j-log4j12</artifactId>
           <version>1.7.5</version>
       </dependency>
       <dependency>
           <groupId>log4j</groupId>
           <artifactId>log4j</artifactId>
           <version>1.2.17</version>
       </dependency>
       <dependency>
           <groupId>junit</groupId>
           <artifactId>junit</artifactId>
           <version>4.11</version>
       </dependency>
   </dependencies>
</project>

连结工厂

public class ConnectionUtils {

   //定义链接工厂
   public static Connection getConnection() throws IOException, TimeoutException {
       //定义连接工厂
       ConnectionFactory factory = new ConnectionFactory();
       //设置服务地址
       factory.setHost("127.0.0.1");
       //端口
       factory.setPort(5672);//amqp协议端口类似与mysql的3306
       //设置账号信息，用户名、密码、vhost
       factory.setVirtualHost("/test");
       factory.setUsername("user");
       factory.setPassword("123456");
       // 通过工程获取连接
       Connection connection = factory.newConnection();
       return connection;
       }

生产者

private static String QUEUE_NAME="work_queue";
   public static void main(String[] args) throws IOException, TimeoutException, InterruptedException {
       //获取链接
       Connection connection= ConnectionUtils.getConnection();
       Channel channel= connection.createChannel();

       channel.queueDeclare(QUEUE_NAME, false, false, false, null);
       for(int i=0;i<50;i++) {
           String msg="hello 张国强"+i;
           channel.basicPublish("", QUEUE_NAME, false, null, msg.getBytes());
           System.out.println("send "+msg+"over");
           Thread.sleep(10000);
       }
       channel.close();
       connection.close();
   }

消费者1：

private static String QUEUE_NAME = "work_queue";

   public static void main(String[] args) throws IOException, TimeoutException {
       Connection connection=ConnectionUtils.getConnection();
       Channel channel=connection.createChannel();
       // 声明队列，主要为了防止消息接收者先运行此程序，队列还不存在时创建队列。
       channel.queueDeclare(QUEUE_NAME, false, false, false, null);
       //定义一个消费者
       final Consumer consumer=new DefaultConsumer(channel) {
           @Override
           public void handleDelivery(String consumerTag, Envelope envelope, BasicProperties properties, byte[] body)
                   throws IOException {
           String msg=new String(body,"UTF-8");
           System.out.println(" [1] Received '" + msg + "'");
           try {
               doWork(msg);
           } catch (InterruptedException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
           }finally {
               System.out.println(" [x] Done");
           }
           }
       };
       boolean autoAck = true; //消息的确认模式自动应答
       channel.basicConsume(QUEUE_NAME, autoAck, consumer);
   }
   private static void doWork(String task) throws InterruptedException {
       Thread.sleep(2000);
       }

消费者2：

private static String QUEUE_NAME = "work_queue";