本系列教程主要來自於官網入門教程的翻譯,然後自己進行了部分的修改與實驗,內容僅供參考。
“Hello world” of RabbitMQ
1、Windows下RabbitMQ的安裝
下載Erlang,地址:http://www.erlang.org/download/otp_win32_R15B.exe ,雙擊安裝即可(首先裝)
下載RabbitMQ,地址:http://www.rabbitmq.com/releases/rabbitmq-server/v3.3.4/rabbitmq-server-3.3.4.exe ,雙擊安裝即可
下載rabbit-client.jar ,Java代碼時需要導入。地址:http://www.rabbitmq.com/releases/rabbitmq-java-client/v3.3.4/rabbitmq-java-client-bin-3.3.4.zip
安裝完成後,在RabbitMQ的安裝目錄的sbin先會有:rabbitmq-server.bat
例如:
在cmd下:進入sbin目錄,運行rabbitmq-server start
在此,如果提示在此節點已經運行rabbit則不用管。
關於RabbitMQ的學習源碼見 git地址:https://github.com/wenjieyatou/rabbitmq
在idea新建一個maven管理的項目,其中pom文件的代碼爲(引入Rabbitmq的jar包)
<?xml version="1.0" encoding="UTF-8"?>
<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>wenjie</groupId>
<artifactId>rabbitmq</artifactId>
<version>1.0-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>com.rabbitmq</groupId>
<artifactId>amqp-client</artifactId>
<version>3.6.0</version>
</dependency>
</dependencies>
</project>
其中生產者代碼如下:
package wenjie.first;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import java.util.concurrent.TimeoutException;
public class Send
{
//隊列名稱
private final static String QUEUE_NAME = "hello";
public static void main(String[] argv) throws java.io.IOException, TimeoutException {
/**
* 創建連接連接到MabbitMQ
*/
ConnectionFactory factory = new ConnectionFactory();
//設置MabbitMQ所在主機ip或者主機名
factory.setHost("localhost");
//創建一個連接
Connection connection = factory.newConnection();
//創建一個頻道
Channel channel = connection.createChannel();
//指定一個隊列
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
//發送的消息
String message = "hello world!";
//往隊列中發出一條消息
channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
System.out.println(" [x] Sent '" + message + "'");
//關閉頻道和連接
try {
channel.close();
} catch (TimeoutException e) {
e.printStackTrace();
}
connection.close();
}
}
關於消費者代碼如下:
package wenjie.first;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.QueueingConsumer;
import java.util.concurrent.TimeoutException;
public class Recv {
//隊列名稱
private final static String QUEUE_NAME = "hello";
public static void main(String[] argv) throws java.io.IOException,
java.lang.InterruptedException, TimeoutException {
//打開連接和創建頻道,與發送端一樣
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("localhost");
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
//聲明隊列,主要爲了防止消息接收者先運行此程序,隊列還不存在時創建隊列。
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
//創建隊列消費者
QueueingConsumer consumer = new QueueingConsumer(channel);
//指定消費隊列
channel.basicConsume(QUEUE_NAME, true, consumer);
while (true)
{
//nextDelivery是一個阻塞方法(內部實現其實是阻塞隊列的take方法)
QueueingConsumer.Delivery delivery = consumer.nextDelivery();
String message = new String(delivery.getBody());
System.out.println(" [x] Received '" + message + "'");
}
}
}