javax.jms.JMSException: Failed to build body from content. Serializable class not available to broke

ActiveMQ发消息成功，控制台报错。

javax.jms.JMSException: Failed to build body from content. Serializable class not available to broker. Reason: java.lang.ClassNotFoundException: com.ceair.shopping.handler.transform.User

问题重现：参考 http://blog.csdn.net/adam_wzs/article/details/51250177中代码

package com.wangzs.t3;import javax.jms.Connection;import javax.jms.ConnectionFactory;import javax.jms.Destination;import javax.jms.JMSException;import javax.jms.Message;import javax.jms.MessageConsumer;import javax.jms.MessageListener;import javax.jms.Session;import javax.jms.TextMessage;import org.apache.activemq.ActiveMQConnectionFactory;/** * @Title 消息消费者工具类 * @Description 消息消费者是由会话创建的一个对象，它用于接收发送到目的地的消息。 * @author wangzs * @date 2016-4-26 */public class ConsumerTool implements MessageListener {private String user;private String password;private String url;private String queueName; // queueName是一个服务器的queueprivate ConnectionFactory connectionFactory = null; // 连接工厂,客户用来创建连接的对象private Destination destination = null; // 指定它生产的消息的目标和它消费的消息的来源的对象private Connection connection = null; // 封装了客户与 JMS 提供者之间的一个虚拟的连接private Session session = null; // 生产和消费消息的一个单线程上下文private MessageConsumer consumer = null; // 消息消费者public ConsumerTool() {super();}public ConsumerTool(String user, String password, String url, String queueName) {super();this.user = user;this.password = password;this.url = url;this.queueName = queueName;}public void initialize() {connectionFactory = new ActiveMQConnectionFactory(this.getUser(), this.getPassword(), this.getUrl());try {connection = connectionFactory.createConnection();connection.start();session = connection.createSession(Boolean.FALSE, Session.AUTO_ACKNOWLEDGE);destination = session.createQueue(this.getQueueName());consumer = session.createConsumer(destination);} catch (JMSException e) {e.printStackTrace();}}// 消费消息public void consumeMessage() {System.out.println("Consumer:->Begin listening...");try {consumer.setMessageListener(this);} catch (JMSException e) {e.printStackTrace();}}@Overridepublic void onMessage(Message message) {try {if (message instanceof TextMessage) {TextMessage txtMsg = (TextMessage) message;String msg = txtMsg.getText();System.out.println("Consumer:->Received: " + msg);}} catch (JMSException e) {e.printStackTrace();}}// 关闭连接public void close() {try {System.out.println("Consumer:->Closing connection");if (consumer != null) {consumer.close();}if (session != null) {session.close();}if (connection != null) {connection.close();}} catch (JMSException e) {e.printStackTrace();}}public String getUser() {return user;}public void setUser(String user) {this.user = user;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public String getUrl() {return url;}public void setUrl(String url) {this.url = url;}public String getQueueName() {return queueName;}public void setQueueName(String queueName) {this.queueName = queueName;}}

package com.wangzs.t3;import java.io.Serializable;import javax.jms.Connection;import javax.jms.ConnectionFactory;import javax.jms.DeliveryMode;import javax.jms.Destination;import javax.jms.JMSException;import javax.jms.MessageProducer;import javax.jms.ObjectMessage;import javax.jms.Session;import javax.jms.TextMessage;import org.apache.activemq.ActiveMQConnectionFactory;/** * @Title 消息生产者工具类 * @Description 消息生产者是由会话创建的一个对象，用于把消息发送到一个目的地 * @author wangzs * @date 2016-4-26 */public class ProducerTool {private String user;private String password;private String url;private String queueName; // queueName是一个服务器的queueprivate ConnectionFactory connectionFactory = null; // 连接工厂,客户用来创建连接的对象private Destination destination = null; // 指定它生产的消息的目标和它消费的消息的来源的对象private Connection connection = null; // 封装了客户与 JMS 提供者之间的一个虚拟的连接private Session session = null; // 生产和消费消息的一个单线程上下文private MessageProducer producer = null; // 消息生产者public ProducerTool() {super();}public ProducerTool(String user, String password, String url, String queueName) {super();this.user = user;this.password = password;this.url = url;this.queueName = queueName;}public void initialize() {connectionFactory = new ActiveMQConnectionFactory(this.getUser(), this.getPassword(), this.getUrl());try {connection = connectionFactory.createConnection();connection.start();session = connection.createSession(Boolean.FALSE, Session.AUTO_ACKNOWLEDGE);destination = session.createQueue(this.getQueueName());producer = session.createProducer(destination);producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);// NON_PERSISTENT:不要求 JMS Producer 持久保存消息。} catch (JMSException e) {e.printStackTrace();}}// 发送消息 String messagepublic void produceMessage(String message) {try {TextMessage msg = session.createTextMessage(message);System.out.println("Producer:->Sending message: " + message);producer.send(msg);} catch (JMSException e) {e.printStackTrace();}}<strong><span style="color:#ff0000;">// 发送消息Serializable messagepublic void produceMessage(Serializable message) {try {ObjectMessage msg = session.createObjectMessage(message);System.out.println("Producer:->Sending message: " + message);producer.send(msg);} catch (JMSException e) {e.printStackTrace();}}</span></strong>// 关闭连接public void close() {try {System.out.println("Producer:->Closing connection");if (producer != null) {producer.close();}if (session != null) {session.close();}if (connection != null) {connection.close();}} catch (JMSException e) {e.printStackTrace();}}public String getUser() {return user;}public void setUser(String user) {this.user = user;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public String getUrl() {return url;}public void setUrl(String url) {this.url = url;}public String getQueueName() {return queueName;}public void setQueueName(String queueName) {this.queueName = queueName;}}

package com.wangzs.t3;import java.io.Serializable;public class User implements Serializable {private static final long serialVersionUID = -2194417922311787497L;private String name;private String age;public User() {super();}public User(String name, String age) {super();this.name = name;this.age = age;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getAge() {return age;}public void setAge(String age) {this.age = age;}@Overridepublic String toString() {return "User [name=" + name + ", age=" + age + "]";}}

package com.wangzs.t3;import org.apache.activemq.ActiveMQConnection;import org.junit.Test;/** * @Title ActiveMQ工具类测试 * @Description * @author wangzs * @date 2016-4-26 */public class JunitTest {@Testpublic void test1() throws InterruptedException {ConsumerTool consumer = new ConsumerTool(ActiveMQConnection.DEFAULT_USER, ActiveMQConnection.DEFAULT_PASSWORD,ActiveMQConnection.DEFAULT_BROKER_URL, "WangzsQueue");ProducerTool producer = new ProducerTool(ActiveMQConnection.DEFAULT_USER, ActiveMQConnection.DEFAULT_PASSWORD,ActiveMQConnection.DEFAULT_BROKER_URL, "WangzsQueue");System.out.println(ActiveMQConnection.DEFAULT_BROKER_URL + "------------");// 消费者consumer.initialize();consumer.consumeMessage();<strong><span style="color:#ff0000;">User user1 = new User("wangzs1", "1");User user2 = new User("wangzs2", "2");</span></strong>// 生产者producer.initialize();producer.produceMessage(user1);producer.produceMessage(user2);}}

问题分析：

 java.lang.ClassNotFoundException: com.ceair.shopping.handler.transform.User

是因为在D:\apache-activemq-5.5.1\lib里面没有user的代码，activemq无法识别

解决办法：

把本地User.java打成user.jar包放入D:\apache-activemq-5.5.1\lib路径下，重启activemq，

再次发消息，就可在activemq控制台看到正确的结果。