HornetQ 单体 – 基本的 JMS 消息传递示例 · HowToDoInJava 中文系列教程

# HornetQ 单体 – 基本的 JMS 消息传递示例 > 原文： [https://howtodoinjava.com/hornetq/basic-jms-messaging-example-using-hornetq-stand-alone-server/](https://howtodoinjava.com/hornetq/basic-jms-messaging-example-using-hornetq-stand-alone-server/) [**HornetQ**](http://hornetq.jboss.org "hornetq") 是一个开放源代码项目，旨在构建多协议，可嵌入，非常高性能的集群异步消息传递系统。 HornetQ 支持 JMS 1.1 API，并且还定义了自己的消息传递 API，以实现最佳性能和灵活性。 HornetQ 一流的高性能日志以非持久消息传递通常看到的速度提供持久消息传递性能。 HornetQ 提供服务器复制和自动客户端故障转移功能，以消除服务器故障时丢失或重复的消息。在上一篇文章中，我们了解了有关配置[**独立 hornetq 服务器和基本配置**](//howtodoinjava.com/hornetq/hornetq-stand-alone-server-example-using-maven/)的信息。让我们继续举例。在本文中，我们将学习将 JMS 消息发送到 hornetq 服务器上的队列的机制，然后检索这些消息。步骤 1）使用以下命令创建一个 maven 项目并将其转换为 Eclipse Java 项目 ```java mvn archetype:generate -DgroupId=com.howtodoinjava -DartifactId=HornetQHelloWorld -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false cd HornetQHelloWorld mvn eclipse:eclipse ``` 步骤 2）更新`pom.xml`文件并更新项目依赖项 **`pom.xml`** ```java <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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.howtodoinjava</groupId> <artifactId>HornetQHelloWorld</artifactId> <packaging>jar</packaging> <version>1.0-SNAPSHOT</version> <name>HornetQHelloWorld</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <dependency> <groupId>org.hornetq</groupId> <artifactId>hornetq-core</artifactId> <version>2.0.0.GA</version> <scope>compile</scope> </dependency> <dependency> <groupId>org.hornetq</groupId> <artifactId>hornetq-jms</artifactId> <version>2.0.0.GA</version> <scope>compile</scope> </dependency> <dependency> <groupId>org.hornetq</groupId> <artifactId>hornetq-logging</artifactId> <version>2.0.0.GA</version> <scope>compile</scope> </dependency> <dependency> <groupId>org.hornetq</groupId> <artifactId>hornetq-transports</artifactId> <version>2.0.0.GA</version> <scope>compile</scope> </dependency> <dependency> <groupId>org.jboss.netty</groupId> <artifactId>netty</artifactId> <version>3.1.0.GA</version> </dependency> <dependency> <groupId>org.jboss.javaee</groupId> <artifactId>jboss-jms-api</artifactId> <version>1.1.0.GA</version> <scope>compile</scope> </dependency> </dependencies> </project> ``` 步骤 3）将基本的 hornetq 配置文件放在类路径中。 **`hornetq-configuration.xml`** ```java <?xml version="1.0"?> <configuration xsi:schemaLocation="urn:hornetq /schema/hornetq-configuration.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:hornetq"> <connectors> <connector name="netty-connector"> <factory-class>org.hornetq.integration.transports.netty.NettyConnectorFactory </factory-class> </connector> </connectors> <acceptors> <acceptor name="netty-acceptor"> <factory-class>org.hornetq.integration.transports.netty.NettyAcceptorFactory </factory-class> </acceptor> </acceptors> <security-enabled>false</security-enabled> </configuration> ``` 步骤 4）配置连接器工厂，并将配置文件放置在`classpath`中。 **`hornetq-jms.xml`** ```java <?xml version="1.0"?> <configuration xsi:schemaLocation="urn:hornetq /schema/hornetq-jms.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:hornetq">  <connection-factory name="ConnectionFactory"> <connectors> <connector-ref connector-name="netty-connector" /> </connectors> <entries> <entry name="ConnectionFactory" /> </entries> </connection-factory> <queue name="exampleQueue"> <entry name="exampleQueue" /> </queue> </configuration> ``` 步骤 5）启动服务器并测试消息传递代码 **`HornetQMessageQueueDemo.java`** ```java package com.howtodoinjava; import java.util.HashMap; import java.util.Map; import javax.jms.Connection; import javax.jms.ConnectionFactory; import javax.jms.MessageConsumer; import javax.jms.MessageProducer; import javax.jms.Queue; import javax.jms.Session; import javax.jms.TextMessage; import org.hornetq.api.core.TransportConfiguration; import org.hornetq.api.jms.HornetQJMSClient; import org.hornetq.core.config.impl.FileConfiguration; import org.hornetq.core.server.HornetQServer; import org.hornetq.core.server.HornetQServers; import org.hornetq.integration.transports.netty.NettyConnectorFactory; import org.hornetq.integration.transports.netty.TransportConstants; import org.hornetq.jms.server.JMSServerManager; import org.hornetq.jms.server.impl.JMSServerManagerImpl; public class HornetQMessageQueueDemo { static void startServer() { try { FileConfiguration configuration = new FileConfiguration(); configuration.setConfigurationUrl("hornetq-configuration.xml"); configuration.start(); HornetQServer server = HornetQServers.newHornetQServer(configuration); JMSServerManager jmsServerManager = new JMSServerManagerImpl(server, "hornetq-jms.xml"); //if you want to use JNDI, simple inject a context here or don't call this method and make sure the JNDI parameters are set. jmsServerManager.setContext(null); jmsServerManager.start(); System.out.println("Server started !!"); } catch (Throwable e) { System.out.println("Damn it !!"); e.printStackTrace(); } } public static void main(String[] args) throws Exception { //Start the server startServer(); Connection connection = null; try { // Step 1\. Directly instantiate the JMS Queue object. Queue queue = HornetQJMSClient.createQueue("exampleQueue"); // Step 2\. Instantiate the TransportConfiguration object which // contains the knowledge of what transport to use, // The server port etc. Map<String, Object> connectionParams = new HashMap<String, Object>(); connectionParams.put(TransportConstants.PORT_PROP_NAME, 5445); TransportConfiguration transportConfiguration = new TransportConfiguration( NettyConnectorFactory.class.getName(), connectionParams); // Step 3 Directly instantiate the JMS ConnectionFactory object // using that TransportConfiguration ConnectionFactory cf = HornetQJMSClient.createConnectionFactory(transportConfiguration); // Step 4.Create a JMS Connection connection = cf.createConnection(); // Step 5\. Create a JMS Session Session session = connection.createSession(false,Session.AUTO_ACKNOWLEDGE); // Step 6\. Create a JMS Message Producer MessageProducer producer = session.createProducer(queue); // Step 7\. Create a Text Message TextMessage message = session.createTextMessage("How to do in java dot com"); System.out.println("Sent message: " + message.getText()); // Step 8\. Send the Message producer.send(message); // Step 9\. Create a JMS Message Consumer MessageConsumer messageConsumer = session.createConsumer(queue); // Step 10\. Start the Connection connection.start(); // Step 11\. Receive the message TextMessage messageReceived = (TextMessage) messageConsumer.receive(5000); System.out.println("Received message: " + messageReceived.getText()); } finally { if (connection != null) { connection.close(); } } } } Output in console: 22 Mar, 2013 2:23:36 PM org.hornetq.core.logging.impl.JULLogDelegate info INFO: live server is starting.. 22 Mar, 2013 2:23:36 PM org.hornetq.core.logging.impl.JULLogDelegate warn WARNING: AIO wasn't located on this platform, it will fall back to using pure Java NIO. If your platform is Linux, install LibAIO to enable the AIO journal 22 Mar, 2013 2:23:36 PM org.hornetq.core.logging.impl.JULLogDelegate info INFO: Using NIO Journal 22 Mar, 2013 2:23:36 PM org.hornetq.core.logging.impl.JULLogDelegate warn WARNING: Security risk! It has been detected that the cluster admin user and password have not been changed from the installation default. Please see the HornetQ user guide, cluster chapter, for instructions on how to do this. 22 Mar, 2013 2:23:36 PM org.hornetq.core.logging.impl.JULLogDelegate info INFO: Started Netty Acceptor version 3.1.5.GA-r1772 Server started !! 22 Mar, 2013 2:23:36 PM org.hornetq.core.logging.impl.JULLogDelegate info INFO: HornetQ Server version 2.0.0.GA (Hornet Queen, 113) started Sent message: How to do in java dot com Received message: How to do in java dot com ``` [**下载源代码**](https://docs.google.com/file/d/0B7yo2HclmjI4b21RNVZFZm55dEU/edit?usp=sharing "下载源码") **祝您学习愉快！**