配备 weblogic JMS 连接

jms 的优点

• 它可以把不影响用户执行结果又比较耗时的任务（比如发邮件通知管理员）异步 的扔给JMS 服务端去做，而尽快的把屏幕返还给用户。
• 服务端能够多线程排队响应高并发的请求，并保证请求不丢失。
• 可以在Java世界里达到最高的解耦。客户端与服务端无需直连，甚至无需知晓对方是谁、在哪里、有多少人，只要对流过的信息作响应就行了，在企业应用环境复杂时作用明显。

今天使用jms 来连接weblogic ，但是总是报weblogic.jndi.WLInitialContextFactory 找不到。

后来试了很多种办法，网上提到加 weblogic.jar 。我按网上说的加了 weblogic.jar。但是还是报java 类找不到 weblogic.security.subject.AbstractSubject java.lang.NoClassDefFoundError:Weblogic/security/subject/AbstractSubject 之类的异常。
那么怎么办呢，其实很简单 只要进入到你的 weblogic-home 路径下进入到server/lib 目录，并运行 jdk6命令 "java -jar wljarbuilder.jar" jdk5 命令“java -jar wljarbuilder.jar -profile wlfullclient5” .拷贝"wlfullclient.jar " 或者 "wlfullclient5.jar" 到你的classpath 环境下。 下面是一个连接weblogic的例子。

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package jms;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Hashtable;

import javax.jms.BytesMessage;
import javax.jms.JMSException;
import javax.jms.MapMessage;
import javax.jms.ObjectMessage;
import javax.jms.Queue;
import javax.jms.QueueConnection;
import javax.jms.QueueConnectionFactory;
import javax.jms.QueueSender;
import javax.jms.QueueSession;
import javax.jms.Session;
import javax.jms.StreamMessage;
import javax.jms.TextMessage;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

public class QueueSend {

	// Defines the JNDI context factory.
	public final static String JNDI_FACTORY = "weblogic.jndi.WLInitialContextFactory";

	// Defines the JNDI provider url.
	public final static String PROVIDER_URL = "t3://localhost:7001";

	// Defines the JMS connection factory for the queue.
	public final static String JMS_FACTORY = "myjmsconnectionfactory";

	// Defines the queue 用的是对应 QUEUE的JNDI名子
	public final static String QUEUE = "myjmsqueue";

	private QueueConnectionFactory qconFactory;

	private QueueConnection qcon;

	private QueueSession qsession;

	private QueueSender qsender;

	private Queue queue;

	private TextMessage msg;

	private StreamMessage sm;

	private BytesMessage bm;

	private MapMessage mm;

	private ObjectMessage om;

	/**
	 * Creates all the necessary objects for sending messages to a JMS queue.
	 * 
	 * @param ctx
	 *            JNDI initial context
	 * @param queueName
	 *            name of queue
	 * @exception NamingException
	 *                if operation cannot be performed
	 * @exception JMSException
	 *                if JMS fails to initialize due to internal error
	 */
	public void init(Context ctx, String queueName) throws NamingException, JMSException {
		qconFactory = (QueueConnectionFactory) ctx.lookup(JMS_FACTORY);
		qcon = qconFactory.createQueueConnection();
		qsession = qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
		queue = (Queue) ctx.lookup(queueName);
		qsender = qsession.createSender(queue);

		msg = qsession.createTextMessage();
		sm = qsession.createStreamMessage();
		bm = qsession.createBytesMessage();
		mm = qsession.createMapMessage();
		om = qsession.createObjectMessage();

		qcon.start();
	}

	/**
	 * Sends a message to a JMS queue.
	 * 
	 * @param message
	 *            message to be sent
	 * @exception JMSException
	 *                if JMS fails to send message due to internal error
	 */
	public void send(String message) throws JMSException {
		// set TextMessage
		msg.setText(message);

		// set StreamMessage
		sm.writeString("xmddl369");
		sm.writeDouble(23.33);

		// set BytesMessage
		String name = "xmddl369";
		byte[] block = name.getBytes();
		bm.writeBytes(block);

		// set MapMessage
		mm.setString("name", "xmddl369");

		// set ObjectMessage
		UserInfo ui = new UserInfo();
		ui.setName("xmddl369");
		ui.setAddress("厦门");
		ui.setAge(100);
		om.setObject(ui);

		qsender.send(msg);
		qsender.send(sm);
		qsender.send(bm);
		qsender.send(mm);
		qsender.send(om);
	}

	/**
	 * Closes JMS objects.
	 * 
	 * @exception JMSException
	 *                if JMS fails to close objects due to internal error
	 */
	public void close() throws JMSException {
		qsender.close();
		qsession.close();
		qcon.close();
	}

	public static void main(String[] args) throws Exception {
		InitialContext ic = getInitialContext();
		QueueSend qs = new QueueSend();
		qs.init(ic, QUEUE);
		//readAndSend(qs);
		qs.send("ddd");
		qs.close();
	}

	private static void readAndSend(QueueSend qs) throws IOException, JMSException {
		BufferedReader msgStream = new BufferedReader(new InputStreamReader(System.in));
		String line = null;
		boolean quitNow = false;
		do {
			System.out.print("Enter message (\"quit\" to quit): ");
			line = msgStream.readLine();
			if (line != null && line.trim().length() != 0) {
				qs.send(line);
				System.out.println("JMS Message Sent: " + line + "\n");
				quitNow = line.equalsIgnoreCase("quit");
			}
		} while (!quitNow);

	}

	private static InitialContext getInitialContext() throws NamingException {
		Hashtable env = new Hashtable();
		env.put(Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);
		env.put(Context.PROVIDER_URL, PROVIDER_URL);
		return new InitialContext(env);
	}
}

package jms;

import java.util.Hashtable;
import javax.jms.BytesMessage;
import javax.jms.JMSException;
import javax.jms.MapMessage;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.ObjectMessage;
import javax.jms.Queue;
import javax.jms.QueueConnection;
import javax.jms.QueueConnectionFactory;
import javax.jms.QueueReceiver;
import javax.jms.QueueSession;
import javax.jms.Session;
import javax.jms.StreamMessage;
import javax.jms.TextMessage;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

/**
 * 
 * @author Administrator
 * 
 *         <pre>
 *      修改版本：  修改人：  修改日期：  修改内容：
 * </pre>
 */
public class QueueReceive implements MessageListener {
	// Defines the JNDI context factory.
	public final static String JNDI_FACTORY = "weblogic.jndi.WLInitialContextFactory";

	// Defines the JNDI provider url.
	public final static String PROVIDER_URL = "t3://localhost:7001";

	// Defines the JMS connection factory for the queue.
	public final static String JMS_FACTORY = "myjmsconnectionfactory";

	// Defines the queue 用的是对应 QUEUE的JNDI名子
	public final static String QUEUE = "myjmsqueue";

	private QueueConnectionFactory qconFactory;

	private QueueConnection qcon;

	private QueueSession qsession;

	private QueueReceiver qreceiver;

	private Queue queue;

	private boolean quit = false;

	/**
	 * Message listener interface.
	 * 
	 * @param msg
	 *            message
	 */
	public void onMessage(Message msg) {
		try {
			String msgText = "";
			double d = 0;

			if (msg instanceof TextMessage) {
				msgText = ((TextMessage) msg).getText();
			} else if (msg instanceof StreamMessage) {
				msgText = ((StreamMessage) msg).readString();
				d = ((StreamMessage) msg).readDouble();
			} else if (msg instanceof BytesMessage) {
				byte[] block = new byte[1024];
				((BytesMessage) msg).readBytes(block);
				msgText = String.valueOf(block);
			} else if (msg instanceof MapMessage) {
				msgText = ((MapMessage) msg).getString("name");
			} else if (msg instanceof ObjectMessage) {
				UserInfo ui = (UserInfo) ((ObjectMessage) msg).getObject();
				msgText = ui.getName();
				d = ui.getAge();
			}

			System.out.println("Message Received: " + msgText + "\t" + d);

			if (msgText.equalsIgnoreCase("quit")) {
				synchronized (this) {
					quit = true;
					this.notifyAll(); // Notify main thread to quit
				}
			}
		} catch (JMSException jmse) {
			jmse.printStackTrace();
		}
	}

	/**
	 * Creates all the necessary objects for receiving messages from a JMS
	 * queue.
	 * 
	 * @param ctx
	 *            JNDI initial context
	 * @param queueName
	 *            name of queue
	 * @exception NamingException
	 *                if operation cannot be performed
	 * @exception JMSException
	 *                if JMS fails to initialize due to internal error
	 */
	public void init(Context ctx, String queueName) throws NamingException, JMSException {
		qconFactory = (QueueConnectionFactory) ctx.lookup(JMS_FACTORY);
		qcon = qconFactory.createQueueConnection();
		qsession = qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
		queue = (Queue) ctx.lookup(queueName);
		qreceiver = qsession.createReceiver(queue);
		qreceiver.setMessageListener(this);
		qcon.start();
	}

	/**
	 * Closes JMS objects.
	 * 
	 * @exception JMSException
	 *                if JMS fails to close objects due to internal error
	 */
	public void close() throws JMSException {
		qreceiver.close();
		qsession.close();
		qcon.close();
	}

	/**
	 * main() method.
	 * 
	 * @param args
	 *            WebLogic Server URL
	 * @exception Exception
	 *                if execution fails
	 */

	public static void main(String[] args) throws Exception {

		InitialContext ic = getInitialContext();
		QueueReceive qr = new QueueReceive();
		qr.init(ic, QUEUE);

		System.out.println("JMS Ready To Receive Messages (To quit, send a \"quit\" message).");

		// Wait until a "quit" message has been received.
		synchronized (qr) {
			while (!qr.quit) {
				try {
					qr.wait();
				} catch (InterruptedException ie) {
					ie.printStackTrace();
				}
			}
		}
		qr.close();
	}

	private static InitialContext getInitialContext() throws NamingException {
		Hashtable env = new Hashtable();
		env.put(Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);
		env.put(Context.PROVIDER_URL, PROVIDER_URL);
		return new InitialContext(env);
	}

	public String getEncoding() throws Exception {
		return "Hello World!";
	}
}

package jms;

import java.io.Serializable;

public class UserInfo implements Serializable {
	/**
  *
  */
	private static final long serialVersionUID = 1L;
	private String name;
	private String address;
	private double age;

	public String getAddress() {
		return address;
	}

	public void setAddress(String address) {
		this.address = address;
	}

	public double getAge() {
		return age;
	}

	public void setAge(double age) {
		this.age = age;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
}

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spring 中的jndi配置

<!-- JNDI 配置


 -->?
?? <bean id="jndiTemplate" class="org.springframework.jndi.JndiTemplate"> 
????? <property name="environment"> 
?????? <props> 
??????? <prop key="java.naming.factory.initial"> 
???????? weblogic.jndi.WLInitialContextFactory 
??????? </prop> 
??????? <prop key="java.naming.provider.url"> 
???????? t3://localhost:7001
??????? </prop> 
??????? <prop key="java.naming.factory.url.pkgs"> 
????????? weblogic.jndi.factories 
??????? </prop> 
?????? </props> 
??? ???? </property> 
???? </bean> 

 <!-- jms 连接工厂?ConnectionFactory

 是在第11页图片里面要填写的jndi的名称

-->??
??? <bean id="jmsConnectionFactory" class="org.springframework.jndi.JndiObjectFactoryBean">
????????? <property name="jndiName" value="ConnectionFactory

" />
????????? <property name="jndiTemplate" ref="jndiTemplate"/>? 
???? </bean>? 

<!-- jms?队列?Queue 是在第11页图片里面要填写的jndi的名称 -->??

<bean id="jmsDestination" class="org.springframework.jndi.JndiObjectFactoryBean">
?????? <property name="jndiName" value="Queue " />
?????? <property name="jndiTemplate" ref="jndiTemplate"/>
????? </bean>

<!-- jms模板 -->

<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
????????? <property name="connectionFactory" ref="jmsConnectionFactory" />
????????? <property name="defaultDestination" ref="jmsDestination" />
???</bean>

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