weblogic JMS 初体验Topic模式-优快云博客

本文介绍了一种使用Java消息服务（JMS）实现主题发布与订阅的应用案例。通过具体的生产者和消费者代码示例，展示了如何在WebLogic环境下进行消息的发布与接收。涉及JNDI查询、连接创建、会话管理、主题定义及消息构造等关键步骤。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

生产者

package com.test;

import javax.jms.JMSException;
import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.jms.TopicConnection;
import javax.jms.TopicConnectionFactory;
import javax.jms.TopicPublisher;
import javax.jms.TopicSession;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

public class JMSTopicSender {

public static void main(String[] args) {
System.setProperty(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
System.setProperty(Context.PROVIDER_URL, "t3://localhost:7001");
TopicConnection connection = null;
TopicSession session = null;
Context ctx = null;

try {
ctx = new InitialContext();

//1.通过JNDI查询ConnectionFactory。JMS中连接工厂分QueueConnectionFactory和 TopicConnectionFactory两种，Weblogic不区分这两种类型。
TopicConnectionFactory factory = (TopicConnectionFactory) ctx.lookup("jms/connectionFactory");

//2.通过工厂建立连接connection
connection = factory.createTopicConnection();

//3.创建session
session = connection.createTopicSession(false, TopicSession.AUTO_ACKNOWLEDGE);

//4.创建Topic,必须新建一个Topic JNDI。
Topic topic = (Topic) ctx.lookup("jms/fileTopic");

//5.创建TopicPublisher
TopicPublisher tp = session.createPublisher(topic);

//构造消息体
TextMessage tm = session.createTextMessage();
tm.setText("csdn tczxg");
tm.setStringProperty("user", "嘿嘿，JMS挺简单的123。。。");

tp.publish(tm);

//必须关闭连接
connection.close();

} catch (NamingException ne) {
ne.printStackTrace();
} catch (JMSException jse) {
jse.printStackTrace();
} finally {
if (session != null)
try {
session.close();
} catch (JMSException e) {
}
if (connection != null)
try {
connection.close();
} catch (JMSException e) {
}
if (ctx != null)
try {
ctx.close();
} catch (NamingException e) {
}
}
}
}

消费者

package com.test;

import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.jms.TopicConnection;
import javax.jms.TopicConnectionFactory;
import javax.jms.TopicSession;
import javax.jms.TopicSubscriber;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

//JMS 广播接收，应该首先运行接收方程序，然后再广播发送消息。
public class JMSTopicReciver {

/**
* @param args
*/
public static void main(String[] args) {
System.setProperty(Context.INITIAL_CONTEXT_FACTORY,
"weblogic.jndi.WLInitialContextFactory");
System.setProperty(Context.PROVIDER_URL, "t3://localhost:7001");
TopicConnection connection = null;
TopicSession session = null;
Context ctx = null;

try {
ctx = new InitialContext();

//1.通过JNDI查询ConnectionFactory
TopicConnectionFactory factory = (TopicConnectionFactory) ctx.lookup("jms/connectionFactory");

//2.通过工厂建立连接connection
connection = factory.createTopicConnection();

//3.创建session
session = connection.createTopicSession(false, TopicSession.AUTO_ACKNOWLEDGE);

//4.创建Topic
Topic topic = (Topic) ctx.lookup("jms/fileTopic");

//5.创建订阅者
TopicSubscriber ts = session.createSubscriber(topic);

connection.start();

//构造消息体
Message message = ts.receive();
if(message instanceof TextMessage){
TextMessage tm = (TextMessage) message ;
String user = tm.getStringProperty("user");
System.out.println(tm.getText() + ", user : "+user);
}
connection.close();

} catch (NamingException ne) {
ne.printStackTrace();
} catch (JMSException jse) {
jse.printStackTrace();
} finally {
if (session != null)
try {
session.close();
} catch (JMSException e) {
}
if (ctx != null)
try {
ctx.close();
} catch (NamingException e) {
}
}
}

}