本文介绍了java远程连接调用Rabbitmq，分享给大家，希望此文章对各位有所帮助。
打开IDEA创建一个maven工程（Java就可以了）。
pom.xml文件如下
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<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> |
为了能远程访问rabbitmq，则需要编辑 /etc/rabbitmq/rabbitmq.conf,添加以下内容。
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[ {rabbit, [{tcp_listeners, [5672]}, {loopback_users, ["asdf"]}]} ] |
添加administrator角色
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rabbitmqctl set_user_tags openstack administrator |
创建抽象队列 EndPoint.java
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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; //创建一个连接工厂 connection factory ConnectionFactory factory = new ConnectionFactory(); //设置rabbitmq-server服务IP地址 factory.setHost("192.168.146.128"); factory.setUsername("openstack"); factory.setPassword("rabbitmq"); factory.setPort(5672); factory.setVirtualHost("/"); //得到 连接 connection = factory.newConnection(); //创建 channel实例 channel = connection.createChannel(); channel.queueDeclare(endpointName, false, false, false, null); } /** * 关闭channel和connection。并非必须，因为隐含是自动调用的。 * @throws IOException */ public void close() throws Exception{ this.channel.close(); this.connection.close(); }} |
生产者Producer.java
生产者类的任务是向队列里写一条消息
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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)); }} |
消费者QueueConsumer.java
消费者可以以线程方式运行，对于不同的事件有不同的回调函数，其中最主要的是处理新消息到来的事件。
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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(); } }} |
测试
运行一个消费者线程，然后开始产生大量的消息，这些消息会被消费者取走
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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内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：http://blog.csdn.net/coco2d_x2014/article/details/75213318?utm_source=tuicool&utm_medium=referral
