pom.xml
现在更新 pom.xml 的内容以包含 ActiveMQ 的依赖项。
<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
https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.jc2182.activemq</groupId>
<artifactId>consumer</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>ActiveMQ Consumer</name>
<dependencies>
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-jms_1.1_spec</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>org.apache.qpid</groupId>
<artifactId>qpid-jms-client</artifactId>
<version>0.40.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.fusesource.mvnplugins</groupId>
<artifactId>maven-uberize-plugin</artifactId>
<version>1.14</version>
<executions>
<execution>
<phase>package</phase>
<goals><goal>uberize</goal></goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
现在创建一个 Consumer 类,它将接收来自 ActiveMQ 队列的消息。
package com.jc2182.activemq;
import java.io.Console;
import javax.jms.Connection;
import javax.jms.Destination;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import org.apache.qpid.jms.JmsConnectionFactory;
public class Consumer {
public static void main(String[] args) throws Exception {
// Create a connection to ActiveMQ JMS broker using AMQP protocol
JmsConnectionFactory factory = new JmsConnectionFactory("amqp://localhost:5672");
Connection connection = factory.createConnection("admin", "password");
connection.start();
// Create a session
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
// Create a queue
Destination destination = session.createQueue("MyFirstQueue");
// Create a consumer specific to queue
MessageConsumer consumer = session.createConsumer(destination);
Console c = System.console();
String response;
do {
// Receive the message
Message msg = consumer.receive();
response = ((TextMessage) msg).getText();
System.out.println("Received = "+response);
} while (!response.equalsIgnoreCase("Quit"));
// Close the connection
connection.close();
}
}
消费者类创建一个连接,启动会话,创建一个消费者,然后从队列中接收消息(如果有的话)。如果队列包含作为消息退出,则应用程序终止,否则它将继续轮询队列以获取消息。