1、网上的例子都是直接发送文本消息的, 我做了一个简单的变换,就是能够发送和接收对象。
首先,在这里确认一下版本,activemq版本是apache-activemq-5.4.1-bin.zip,activemq安装环境是win7,jdk是1.6版本。下载apache-activemq-5.4.1-bin.zip,到官网
http://activemq.apache.org/download.html,注意找对应的版本,然后下载解压到系统的任意一个目录。
如图,我这里是放在了我windows系统的e盘下面,然后双击activemq.bat文件,启动activemq,启动成功会出现下面这个界面:
请注意,如果activemq不能正常启动,出现这个问题的话:
java.io.EOFException: Chunk stream does not exist at page: 0
2、将下载的activemq中的activemq-all-5.4.1.jar导入到工程中
3、发送类
package com.test.activemq;
import java.io.Serializable;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.command.ActiveMQObjectMessage;
public class SenderMain {
private static final int SEND_NUMBER = 5;
public static void main(String[] args) {
// TODO Auto-generated method stub
ConnectionFactory connectionFactory; // Connection :JMS 客户端到JMS
// Provider 的连接
Connection connection = null; // Session: 一个发送或接收消息的线程
Session session; // Destination :消息的目的地;消息发送给谁.
Destination destination; // MessageProducer:消息发送者
MessageProducer producer; // TextMessage message;
// 构造ConnectionFactory实例对象,此处采用ActiveMq的实现jar
connectionFactory = new ActiveMQConnectionFactory(
ActiveMQConnection.DEFAULT_USER,
ActiveMQConnection.DEFAULT_PASSWORD, "tcp://localhost:61616");
try { // 构造从工厂得到连接对象
connection = connectionFactory.createConnection();
// 启动
connection.start();
// 获取操作连接
session = connection.createSession(Boolean.TRUE,
Session.AUTO_ACKNOWLEDGE);
// 获取session注意参数值xingbo.xu-queue是一个服务器的queue,须在在ActiveMq的console配置
destination = session.createQueue("FirstQueue");
// 得到消息生成者【发送者】
producer = session.createProducer(destination);
// 设置不持久化,此处学习,实际根据项目决定
producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
// 构造消息,此处写死,项目就是参数,或者方法获取
sendMessage(session, producer);
session.commit();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (null != connection)
connection.close();
} catch (Throwable ignore) {
}
}
}
/*
* 利用activemq发送java对象
* */
public static void sendMessage(Session session, MessageProducer producer)
throws Exception {
Student s=new Student();
s.setName("蒋辉文是一个非常不错的好人!");
ActiveMQObjectMessage msg = (ActiveMQObjectMessage) session.createObjectMessage();
msg.setObject((Serializable) s);
producer.send(msg);
}
}
class Student implements Serializable
{
/**
*
*/
private static final long serialVersionUID = 1L;
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
4、接收类
package com.test.activemq;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.MessageConsumer;
import javax.jms.Session;
import javax.jms.TextMessage;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.command.ActiveMQObjectMessage;
public class ReceiveMain {
public static void main(String[] args) {
// TODO Auto-generated method stub
// ConnectionFactory :连接工厂,JMS 用它创建连接
ConnectionFactory connectionFactory;
// Connection :JMS 客户端到JMS Provider 的连接
Connection connection = null;
// Session: 一个发送或接收消息的线程
Session session;
// Destination :消息的目的地;消息发送给谁.
Destination destination;
// 消费者,消息接收者
MessageConsumer consumer;
connectionFactory = new ActiveMQConnectionFactory(
ActiveMQConnection.DEFAULT_USER,
ActiveMQConnection.DEFAULT_PASSWORD, "tcp://localhost:61616");
try {
// 构造从工厂得到连接对象
connection = connectionFactory.createConnection();
// 启动
connection.start();
// 获取操作连接
session = connection.createSession(Boolean.FALSE,
Session.AUTO_ACKNOWLEDGE);
// 获取session注意参数值xingbo.xu-queue是一个服务器的queue,须在在ActiveMq的console配置
destination = session.createQueue("FirstQueue");
consumer = session.createConsumer(destination);
/*
* 利用activemq接收java对象
* */
while (true) {
// 设置接收者接收消息的时间,为了便于测试,这里谁定为100s
ActiveMQObjectMessage msg = (ActiveMQObjectMessage) session.createObjectMessage();
msg = (ActiveMQObjectMessage) consumer.receive(100000);
if(msg != null)
{
Student s=(Student) msg.getObject();
System.out.println("收到的消息对象:"+s.getName());
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (null != connection)
connection.close();
} catch (Throwable ignore) {
}
}
}
}
5、先运行发送类,再运行接收类,会打印出下面的消息
说明运行正常,先给消息中间件发消息,然后从消息中间件接收消息。
标签:jms,发送,connection,session,import,接收,activemq,javax From: https://blog.51cto.com/u_15990596/6293695