java遠(yuǎn)程連接調(diào)用Rabbitmq的實(shí)例代碼

更新時(shí)間：2017年07月17日 10:47:00 作者：甄齊才

本篇文章主要介紹了java遠(yuǎn)程連接調(diào)用Rabbitmq的實(shí)例代碼，小編覺(jué)得挺不錯(cuò)的，現(xiàn)在分享給大家，也給大家做個(gè)參考。一起跟隨小編過(guò)來(lái)看看吧

本文介紹了java遠(yuǎn)程連接調(diào)用Rabbitmq，分享給大家，希望此文章對(duì)各位有所幫助。

打開(kāi)IDEA創(chuàng)建一個(gè)maven工程（Java就可以了）。

這里寫(xiě)圖片描述

pom.xml文件如下

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 <modelVersion>4.0.0</modelVersion>

 <groupId>com.zhenqi</groupId>
 <artifactId>rabbitmq-study</artifactId>
 <version>1.0-SNAPSHOT</version>
 <packaging>jar</packaging>

 <name>rabbitmq-study</name>
 <url>http://maven.apache.org</url>

 <properties>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 </properties>

 <dependencies>
  <dependency>
   <groupId>junit</groupId>
   <artifactId>junit</artifactId>
   <version>4.12</version>
   <scope>test</scope>
  </dependency>

  <!-- https://mvnrepository.com/artifact/com.rabbitmq/amqp-client -->
  <dependency>
   <groupId>com.rabbitmq</groupId>
   <artifactId>amqp-client</artifactId>
   <version>4.1.0</version>
   <exclusions>
    <exclusion>
     <groupId>org.slf4j</groupId>
     <artifactId>slf4j-api</artifactId>
    </exclusion>
   </exclusions>
  </dependency>

  <dependency>
   <groupId>org.slf4j</groupId>
   <artifactId>slf4j-log4j12</artifactId>
   <version>1.7.21</version>
  </dependency>

  <dependency>
   <groupId>commons-lang</groupId>
   <artifactId>commons-lang</artifactId>
   <version>2.6</version>
  </dependency>

 </dependencies>
</project>

為了能遠(yuǎn)程訪問(wèn)rabbitmq，則需要編輯 /etc/rabbitmq/rabbitmq.conf,添加以下內(nèi)容。

[
  {rabbit, [{tcp_listeners, [5672]}, {loopback_users, ["asdf"]}]}
 ]

添加administrator角色

rabbitmqctl set_user_tags openstack administrator

創(chuàng)建抽象隊(duì)列 EndPoint.java

package com.zhenqi;

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


/**
 * Created by wuming on 2017/7/16.
 */
public abstract class EndPoint {

  protected Channel channel;
  protected Connection connection;
  protected String endPointName;

  public EndPoint(String endpointName) throws Exception {

    this.endPointName = endpointName;

    //創(chuàng)建一個(gè)連接工廠 connection factory
    ConnectionFactory factory = new ConnectionFactory();

    //設(shè)置rabbitmq-server服務(wù)IP地址
    factory.setHost("192.168.146.128");
    factory.setUsername("openstack");
    factory.setPassword("rabbitmq");
    factory.setPort(5672);
    factory.setVirtualHost("/");

    //得到 連接
    connection = factory.newConnection();

    //創(chuàng)建 channel實(shí)例
    channel = connection.createChannel();

    channel.queueDeclare(endpointName, false, false, false, null);
  }

  /**
   * 關(guān)閉channel和connection。并非必須，因?yàn)殡[含是自動(dòng)調(diào)用的。
   * @throws IOException
   */
  public void close() throws Exception{
    this.channel.close();
    this.connection.close();
  }
}

生產(chǎn)者Producer.java

生產(chǎn)者類的任務(wù)是向隊(duì)列里寫(xiě)一條消息

package com.zhenqi;

import org.apache.commons.lang.SerializationUtils;

import java.io.Serializable;

/**
 * Created by wuming on 2017/7/16.
 */
public class Producer extends EndPoint {

  public Producer(String endpointName) throws Exception {
    super(endpointName);
  }

  public void sendMessage(Serializable object) throws Exception {
    channel.basicPublish("",endPointName, null, SerializationUtils.serialize(object));
  }
}

消費(fèi)者QueueConsumer.java

消費(fèi)者可以以線程方式運(yùn)行，對(duì)于不同的事件有不同的回調(diào)函數(shù)，其中最主要的是處理新消息到來(lái)的事件。

package com.zhenqi;

import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Consumer;
import com.rabbitmq.client.Envelope;
import com.rabbitmq.client.ShutdownSignalException;
import org.apache.commons.lang.SerializationUtils;
import org.apache.log4j.Logger;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

/**
 * Created by wuming on 2017/7/16.
 */
public class QueueConsumer extends EndPoint implements Runnable, Consumer {

  private Logger LOG=Logger.getLogger(QueueConsumer.class);

  public QueueConsumer(String endpointName) throws Exception {
    super(endpointName);
  }

  public void handleConsumeOk(String s) {

  }

  public void handleCancelOk(String s) {

  }

  public void handleCancel(String s) throws IOException {

  }

  public void handleShutdownSignal(String s, ShutdownSignalException e) {

  }

  public void handleRecoverOk(String s) {
    LOG.info("Consumer "+s +" registered");
  }

  public void handleDelivery(String s, Envelope envelope, AMQP.BasicProperties basicProperties, byte[] bytes) throws IOException {
    Map map = (HashMap) SerializationUtils.deserialize(bytes);
    LOG.info("Message Number "+ map.get("message number") + " received.");
  }

  public void run() {
    try{
      channel.basicConsume(endPointName, true,this);
    }catch(IOException e){
      e.printStackTrace();
    }
  }
}

測(cè)試

運(yùn)行一個(gè)消費(fèi)者線程，然后開(kāi)始產(chǎn)生大量的消息，這些消息會(huì)被消費(fèi)者取走

package com.zhenqi;

import java.util.HashMap;

/**
 * Created by wuming on 2017/7/16.
 */
public class TestRabbitmq {

  public static void main(String[] args){
    try{
      QueueConsumer consumer = new QueueConsumer("queue");
      Thread consumerThread = new Thread(consumer);
      consumerThread.start();

      Producer producer = new Producer("queue");

      for (int i = 0; i < 100000; i++){
        HashMap message = new HashMap();
        message.put("message number", i);
        producer.sendMessage(message);
        System.out.println("Message Number "+ i +" sent.");
      }
    }catch(Exception e){
      e.printStackTrace();
    }

  }
}

以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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