Rabbit的事务

package com.kf.queueDemo.transactions;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

import com.kf.utils.RabbitConnectionUtils;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;

/**
 * 简单队列  （事务） txSelect()  txCommit()  txRollback()
 * @author kf
 *
 */
public class TransactionsQueueProducer {
    
    //队列名称
    private static String QUEUENAME = "TRANSACTIONSQUEUE";
    
    public static void main(String[] args) throws IOException, TimeoutException{
        Connection connection = RabbitConnectionUtils.getConnection();
        
        //创建通道
        Channel channel = connection.createChannel();
        
        //通道里放入队列
        /**
         * 第一个参数是  队列名称
         * 第二个参数指 要不要持久化
         */
        channel.queueDeclare(QUEUENAME, false, false, false, null);
        
/*        //消息体
        String mes = "demo_message汉字";
        
        //发送消息
        *//**
         * 参数为  exchange, routingKey, props, body
         * exchange   交换机
         * routingKey 路由键
         * 
         * body 消息体
         *//*
        channel.basicPublish("", QUEUENAME, null, mes.getBytes());*/
        
        /**
         * 集群环境下，多个消费者情况下。消费者默认采用均摊
         */
        try {
            //开启事务
            channel.txSelect();
            String mes = "demo_message汉字";
            System.out.println("发送消息"+mes);
            channel.basicPublish("", QUEUENAME, null, mes.getBytes());
            //提交事务
            channel.txCommit();
            int  i = 1/0;
        } catch (Exception e) {
            e.printStackTrace();
            //事务回滚
            channel.txRollback();
            System.out.println("生产者发生错误，事务已回滚");
        }finally {
            channel.close();
            connection.close();
        }
        
    }

}

package com.kf.queueDemo.transactions;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

import com.kf.utils.RabbitConnectionUtils;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.DefaultConsumer;
import com.rabbitmq.client.Envelope;
import com.rabbitmq.client.AMQP.BasicProperties;

/**
 * 简单队列消费者  事务
 * @author kf
 *
 */
public class TransactionsConsumer {
    //队列名称
        private static String QUEUENAME = "TRANSACTIONSQUEUE";
        
        public static void main(String[] args) throws IOException, TimeoutException{
            System.out.println("开始接收消息");
            Connection connection = RabbitConnectionUtils.getConnection();
            
            //创建通道
            final Channel channel = connection.createChannel();
            
            //通道里放入队列
            /**
             * 第一个参数是  队列名称
             * 第二个参数指 要不要持久化
             */
            channel.queueDeclare(QUEUENAME, false, false, false, null);
            
            DefaultConsumer consumer = new DefaultConsumer(channel){
                //监听队列
                    @Override
                    public void handleDelivery(String consumerTag, Envelope envelope, BasicProperties properties,
                            byte[] body) throws IOException {
                        System.out.println("------------进入监听---------");
                        String s = new String(body, "utf-8");
                        System.out.println("获取到的消息是:"+s);
                        //手动应答。
                        /**
                         * 当  channel.basicConsume(QUEUENAME, true, consumer);第二个参数为false时  是手动应答模式
                         */
                    //    channel.basicAck(envelope.getDeliveryTag(), false);
                    }
            };
            
            //设置应答模式
            /**
             * 参数：  对列名，是否自动签收，监听的类
             */
            System.out.println("获取消息的方法之前");
            channel.basicConsume(QUEUENAME, true, consumer);
            System.out.println("获取消息的方法之后");
            
        }


}