java-rabbitmq-实例pull模式拉取消息

java-rabbitmq-实例pull模式拉取消息


描述：
手动拉取指定队列的消息。


运行：
D7_PullSend.main();
D7_PullRecv.main();

package com.example.tutorials;import com.rabbitmq.client.AMQP;import com.rabbitmq.client.Channel;import com.rabbitmq.client.Connection;import com.rabbitmq.client.ConnectionFactory;import java.util.HashMap;import java.util.Map;import java.util.Scanner;/** * 使用 channel.basicGet() 方法，拉取指定队列中的内容 * @create 2017-09-05 * amqp-client 4.2.0 **/public class D7_PullSend {    private final static String QUEUE_NAME = "pull_queue";    /**     * 生产者，     * @param argv     * @throws Exception     */    public static void main(String[] argv) throws Exception {        ConnectionFactory factory = new ConnectionFactory();        //设置登录账号        factory.setHost(ServerInfo.host);        factory.setPort(ServerInfo.port);        factory.setUsername(ServerInfo.uName);        factory.setPassword(ServerInfo.uPwd);        //链接服务器        Connection connection = factory.newConnection();        Channel channel = connection.createChannel();        Map<String,Object> args = new HashMap<>();//        args.put("x-message-ttl",15*1000);//消息过期时间为 15 秒        //args.put("x-expires",1*60*1000); //队列过期时间为 1 分钟        //定义一个队列        boolean duiable=false;//持久化        boolean exclusive = false;//排他队列        boolean autoDelete=false;//没有consumer时，队列是否自动删除        channel.queueDeclare(QUEUE_NAME, duiable, exclusive, autoDelete, args);        //发送消息        System.out.println("输入要发送的消息，退出输入 x ");        String message ;        //        AMQP.BasicProperties prop = new AMQP.BasicProperties                .Builder()                .expiration("15000") //消息过期时间为 15 秒                .build();        do{            Scanner scanner = new Scanner(System.in);            message = scanner.next();            channel.basicPublish(""                    , QUEUE_NAME                    , prop                    , message.getBytes("UTF-8"));            System.out.println(" [x] Sent '" + message + "'");        }while(!"x".equals(message));        //关闭链接        channel.close();        connection.close();    }}

package com.example.tutorials;import com.rabbitmq.client.Channel;import com.rabbitmq.client.Connection;import com.rabbitmq.client.ConnectionFactory;import com.rabbitmq.client.GetResponse;import java.util.Scanner;/** * 使用 channel.basicGet() 方法，拉取指定队列中的内容 * @create 2017-09-05 * amqp-client 4.2.0 **/public class D7_PullRecv {    private final static String QUEUE_NAME = "pull_queue";    /**     * 消费者， "Hello World!"     * @param argv     * @throws Exception     */    public static void main(String[] argv) throws Exception {        ConnectionFactory factory = new ConnectionFactory();        //设置登录账号        factory.setHost(ServerInfo.host);        factory.setPort(ServerInfo.port);        factory.setUsername(ServerInfo.uName);        factory.setPassword(ServerInfo.uPwd);        //链接服务器        Connection connection = factory.newConnection();        Channel channel = connection.createChannel();        //定义一个队列        boolean duiable=false;//持久化        boolean exclusive = false;//排他队列        boolean autoDelete=false;//没有consumer时，队列是否自动删除        channel.queueDeclare(QUEUE_NAME, duiable, exclusive, autoDelete, null);        //接收消息        System.out.println(" [*] Waiting for messages. To exit press CTRL+C");        boolean autoAck = true; //自动应答        System.out.println("输入回车获取消息，退出输入 x ");        String message ="";        GetResponse resp ;        do{            Scanner scanner = new Scanner(System.in);            scanner.nextLine();            resp = channel.basicGet(QUEUE_NAME,autoAck);            if(resp==null){                System.out.println(QUEUE_NAME+" 队列无消息");                continue;            }            message = new String(resp.getBody(), "UTF-8");            System.out.println(String.format(" [x] Recv Count %s , msg = %s;"                ,resp.getMessageCount()                ,message));        }while(!"x".equals(message));    }}