RabbitMQ整合Spring Booot【生产者事务确认机制】

布满荆棘的人生 2022-12-08 04:28 194阅读 0赞

package com.toov5.amqp;
    
    import java.io.IOException;
    import java.util.concurrent.TimeoutException;
    
    import com.rabbitmq.client.Channel;
    import com.rabbitmq.client.Connection;
    import com.toov5.utils.MQConnectionUtils;
    
    public class Producer {
        // 队列名称
        private static final String UEUE_NAME = "test_queue";
    
        public static void main(String[] args) throws IOException, TimeoutException {
            // 创建新的连接
            Connection connection = MQConnectionUtils.newConnection();
            // 创建Channel
            Channel channel = connection.createChannel();
            // 创建队列
            channel.queueDeclare(UEUE_NAME, false, false, false, null);
            channel.basicQos(1); // 保证 取一个消费
                try {
                  channel.txSelect(); //开启事务 // 创建message
                    String msg = "toov5_message";
                    System.out.println("生产者投递消息" + msg );
                    // 生产者发送消息
                    channel.basicPublish("", UEUE_NAME, null, msg.getBytes());
                    int i = 1/0;
                  channel.txCommit(); //提交事务
                } catch (Exception e) {
                    System.out.println("生产者消息事务已经回滚");
                 channel.txRollback(); //回滚事务
                }finally {
                    // 关闭通道和连接
                    channel.close();
                    connection.close();
    
                }            
                
            }
        
        }

consumer:

package com.toov5.amqp;
    
    import java.io.IOException;
    import java.util.concurrent.TimeoutException;
    
    import com.rabbitmq.client.AMQP.BasicProperties;
    import com.rabbitmq.client.Channel;
    import com.rabbitmq.client.Connection;
    import com.rabbitmq.client.DefaultConsumer;
    import com.rabbitmq.client.Envelope;
    import com.toov5.utils.MQConnectionUtils;
    
    public class Consumer1 {
      
         //队列名称
            private static final String QUEUE_NAME = "test_queue";
            
            public static void main(String[] args) throws IOException, TimeoutException {
                System.out.println("消费者启动..........1");
                //创建新的连接
            Connection connection = MQConnectionUtils.newConnection();
               //创建Channel
                final Channel channel = connection.createChannel();
                // 消费者关联队列
                 channel.queueDeclare(QUEUE_NAME, false, false, false, null);
                 channel.basicQos(1);
                  DefaultConsumer defaultConsumerr = new DefaultConsumer(channel) {
                      //监听获取消息
                        @Override
                        public void handleDelivery(String consumerTag, Envelope envelope, BasicProperties properties,
                                byte[] body) throws IOException {
                            String msg =new String(body,"UTF-8");
                            System.out.println("消费者获取生产者消息："+msg);
                            try {
                                //模拟应答等待时间
                                Thread.sleep(1000);
                            } catch (Exception e) {
                                
                            }finally {
                               channel.basicAck(envelope.getDeliveryTag(), false);  //手动应答 告诉消息队列服务器 消费成功
                            }
                        }
                  };
                //牵手模式设置  默认自动应答模式  true:自动应答模式  
                  channel.basicConsume(QUEUE_NAME, false, defaultConsumerr);//    fanse手动应答          
    
            }
    }

结果：

![04324688979fa915132eec540e9b337c.png][]

![62af902242439c58c479c9a7403b6137.png][]

上面可以做个AOP~~

可以参考下 Confirm模式

[04324688979fa915132eec540e9b337c.png]: /images/20221123/88ce32299f0540c3a87728c883b78eb9.png
[62af902242439c58c479c9a7403b6137.png]: /images/20221123/96579dbef840466680bb65cce56866a2.png