RabbitMQ的简单使用

 

package test.my.maven;

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

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

/**
 * 消息生成者
 */
public class Producer {
    public final static String QUEUE_NAME="rabbitMQ.test";

    public static void main(String[] args) throws IOException, TimeoutException {

      //  while (true) {
            File file = new File("/home/wyf/test/errlog.txt");
            String str = txttest.txt2String(file);
            //创建连接工厂
            ConnectionFactory factory = new ConnectionFactory();
            //设置RabbitMQ相关信息
            factory.setHost("localhost");
            factory.setUsername("wyf");
            factory.setPassword("1");
            factory.setPort(5672);
            //创建一个新的连接
            Connection connection = factory.newConnection();
            //创建一个通道
            Channel channel = connection.createChannel();
            //  声明一个队列
            channel.queueDeclare(QUEUE_NAME, false, false, false, null);
            String message = str;
            //发送消息到队列中
            channel.basicPublish("", QUEUE_NAME, null, message.getBytes("UTF-8"));
            System.out.println("Producer Send +ok'");
            //关闭通道和连接
//            channel.close();
//            connection.close();
      //  }
    }
}

 

 

package test.my.maven;

import com.rabbitmq.client.*;

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

public class Customer {
    private final static String QUEUE_NAME = "rabbitMQ.test";

    public static void main(String[] args) throws IOException, TimeoutException {
        // 创建连接工厂
        ConnectionFactory factory = new ConnectionFactory();
        //设置RabbitMQ地址
        factory.setHost("localhost");
        factory.setUsername("wyf");
        factory.setPassword("1");
        factory.setPort(5672);
        //创建一个新的连接
        Connection connection = factory.newConnection();
        //创建一个通道
        Channel channel = connection.createChannel();
        //声明要关注的队列
        channel.queueDeclare(QUEUE_NAME, false, false, true, null);
        System.out.println("Customer Waiting Received messages");
        //DefaultConsumer类实现了Consumer接口，通过传入一个频道，
        // 告诉服务器我们需要那个频道的消息，如果频道中有消息，就会执行回调函数handleDelivery
        Consumer consumer = new DefaultConsumer(channel) {
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope,
                                       AMQP.BasicProperties properties, byte[] body)
                    throws IOException {
                String message = new String(body, "UTF-8");
                System.out.println("Customer Received '" + message + "'");
            }
        };
        //自动回复队列应答 -- RabbitMQ中的消息确认机制
        channel.basicConsume(QUEUE_NAME, true, consumer);
    }
}

 

package test.my.maven;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;

public class txttest {
    /**
     * 读取txt文件的内容
     * @param file 想要读取的文件对象
     * @return 返回文件内容
     */
    public static String txt2String(File file){
        StringBuilder result = new StringBuilder();
        try{
            BufferedReader br = new BufferedReader(new FileReader(file));//构造一个BufferedReader类来读取文件
            String s = null;
            while((s = br.readLine())!=null){//使用readLine方法，一次读一行
                result.append(System.lineSeparator()+s);
            }
            br.close();    
        }catch(Exception e){
            e.printStackTrace();
        }
        return result.toString();
    }
}