安卓实现rabbitmq接收功能不能正常实现

Question

最近在用安卓实现rabbitmq,该配置的都配置了，为什么不能实现发收功能呢？以下是代码

package com.jl.mq;



import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;

import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.Consumer;
import com.rabbitmq.client.DefaultConsumer;
import com.rabbitmq.client.Envelope;

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


public class MainActivity extends AppCompatActivity {

    private String userName = "guest" ;
    private String passWord = "guest" ;
    private String virtualHost = "/" ;
    private String hostName = " 192.168.10.207" ;
    private int portNum = 5672 ;
    private String queueName = "host_query" ;
    private String exchangeName = "text_host " ;
    private String rountingKey = "*.info" ;

    ConnectionFactory factory = new ConnectionFactory() ;



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        setupConnectionFactory();
        new Thread(new Runnable() {
            @Override
            public void run() {
                basicPublish();
            }
        }).start();
        new Thread(new Runnable() {
            @Override
            public void run() {
                basicConsume();
            }
        }).start();

    }

    /**
     * Rabbit配置
     */
    private void setupConnectionFactory(){

        factory.setUsername(userName);
        factory.setPassword(passWord);
        factory.setHost(hostName);
        factory.setPort(portNum);

    }

    /**
     * 发消息
     */
    private void basicPublish(){

        try {
            //连接
            Connection connection = factory.newConnection() ;
            //通道
            Channel channel = connection.createChannel() ;
            //声明了一个交换和一个服务器命名的队列，然后将它们绑定在一起。
            channel.exchangeDeclare(exchangeName , "fanout" , true) ;
            String queueName = channel.queueDeclare().getQueue() ;
            channel.queueBind(queueName , exchangeName , rountingKey) ;
            //消息发布
            byte[] msg = "hello word!".getBytes() ;
            channel.basicPublish(exchangeName , rountingKey  ,null , msg);

        } catch (IOException e) {
            e.printStackTrace();
        } catch (TimeoutException e) {
            e.printStackTrace();
        }

    }

    /**
     * 收消息
     */
    private void basicConsume(){

        try {
            //连接
            Connection connection = factory.newConnection() ;
            //通道
            final Channel channel = connection.createChannel() ;
            //实现Consumer的最简单方法是将便捷类DefaultConsumer子类化。可以在basicConsume 调用上传递此子类的对象以设置订阅：
            channel.basicConsume(queueName , false , "administrator" , new DefaultConsumer(channel){
                @Override
                public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                    super.handleDelivery(consumerTag, envelope, properties, body);

                    String rountingKey = envelope.getRoutingKey() ;
                    String contentType = properties.getContentType() ;
                    String msg = new String(body) ;
                    long deliveryTag = envelope.getDeliveryTag() ;

                    Log.e("TAG" , rountingKey+"：rountingKey") ;
                    Log.e("TAG" , contentType+"：contentType") ;
                    Log.e("TAG" , msg+"：msg") ;
                    Log.e("TAG" , deliveryTag+"：deliveryTag") ;

                    channel.basicAck(deliveryTag , false);
                }
            });
        } catch (IOException e) {
            e.printStackTrace();
        } catch (TimeoutException e) {
            e.printStackTrace();
        }

    }






}

Answer 1

请检查 RabbitMQ 服务是否运行正常，连接参数及回调处理代码无误。

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