JBOSS集成的ActiveMQ处理消息

上篇博客对JBOSS和ActiveMQ集成做了一下实现，这篇用一个DEMO来看如何来用两者集成之后的ActiveMQ来处理消息。

 

这个DEMO是用STRUTS2+Spring3+MDB实现的，主要的功能是发送邮件。

首先来看邮件实体类：

packagecom.tgb.collegeplatform.common.email.util; import java.io.Serializable;import java.util.List;  /** * 邮件实体类 *@author CJQ *2013-4-17 19:52 */@SuppressWarnings("serial")public class Email implements Serializable{          //收件人邮箱地址         privateString to;                 //发件人邮箱地址         privateString form;          //SMTP服务器地址         privateString smtpServer;          //登录SMTP服务器的用户名         privateString username;          //登录SMTP服务器的密码         privateString password;          //邮件主题         privateString subject;          //邮件正文         privateString content;          //记录所有附件文件的集合         privateList<String> attachments;                 publicEmail() {                   super();         }                         /**          * 初始化各属性的构造器          * @param to 指定收件人地址          * @param form 指定发件人地址          * @param smtpServer 指定SMTP服务器          * @param username 指定登录SMTP服务器用户名          * @param password 指定登录SMTP服务器密码          * @param subject 邮件标题          * @param content 邮件内容          * @author CJQ          * 2013-4-17 19:55          */         publicEmail(String to, String form, String smtpServer, String username,                            Stringpassword, String subject, String content) {                   this.to= to;                   this.form= form;                   this.smtpServer= smtpServer;                   this.username= username;                   this.password= password;                   this.subject= subject;                   this.content= content;         }           publicString getTo() {                   returnto;         }          publicvoid setTo(String to) {                   this.to= to;         }          publicString getForm() {                   returnform;         }          publicvoid setForm(String form) {                   this.form= form;         }          publicString getSmtpServer() {                   returnsmtpServer;         }          publicvoid setSmtpServer(String smtpServer) {                   this.smtpServer= smtpServer;         }          publicString getUsername() {                   returnusername;         }          publicvoid setUsername(String username) {                   this.username= username;         }          publicString getPassword() {                   returnpassword;         }          publicvoid setPassword(String password) {                   this.password= password;         }          publicString getSubject() {                   returnsubject;         }          publicvoid setSubject(String subject) {                   this.subject= subject;         }          publicString getContent() {                   returncontent;         }          publicvoid setContent(String content) {                   this.content= content;         }          publicList<String> getAttachments() {                   returnattachments;         }          publicvoid setAttachments(List<String> attachments) {                   this.attachments= attachments;         }                 /**          * 添加附件，即那个附件的文件名添加到list集合中          * @param fanme 附件文件名          * @author CJQ          * 2013-4-17 20:07          */         publicvoid attachfile(String fanme){                   attachments.add(fanme);         }}

 

之后我们来看MDB代码：

packagecom.tgb.collegeplatform.common.getandsendmail; import java.util.Date;import java.util.Properties; import javax.ejb.ActivationConfigProperty;import javax.ejb.MessageDriven;import javax.jms.JMSException;import javax.jms.Message;import javax.jms.MessageListener;import javax.jms.ObjectMessage;import javax.mail.Address;import javax.mail.Authenticator;import javax.mail.MessagingException;import javax.mail.PasswordAuthentication;import javax.mail.Session;import javax.mail.Transport;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeMessage; importorg.jboss.ejb3.annotation.ResourceAdapter; import com.tgb.collegeplatform.common.email.util.Email; /** *Message-Driven Bean implementation class for: GetAndSendMail * */@MessageDriven(activationConfig = {                   @ActivationConfigProperty(propertyName= "destinationType", propertyValue = "javax.jms.Queue"),                   @ActivationConfigProperty(propertyName= "destination", propertyValue = "queue.outbound") })@ResourceAdapter("activemq-ra-5.7.0.rar")public class GetAndSendMail implementsMessageListener {          /**          * Default constructor.          */         publicGetAndSendMail() {         }          /**          * @see MessageListener#onMessage(Message)          */         publicvoid onMessage(Message message) {                    if(message instanceof ObjectMessage) {                            ObjectMessagemessageInfo = (ObjectMessage) message;                            try{                                     Emailemail = (Email) messageInfo.getObject();                                     //判断是否需要身份认证                                     MyAuthenticatorauthenticator = null;                                     Propertiespro = new Properties();                                     pro.put("mail.smtp.host",email.getSmtpServer());                                     pro.put("mail.smtp.auth","true");                                      //身份认证，则创建一个密码验证器                                     authenticator= new MyAuthenticator(email.getUsername(),                                                        email.getPassword());                                      //根据邮件会话属性和密码验证器构造一个发送邮件的session                                     SessionsendMailSession = Session.getDefaultInstance(pro,                                                        authenticator);                                      //根据session创建一个邮件消息                                     javax.mail.MessagemailMessage = new MimeMessage(                                                        sendMailSession);                                     //创建邮件发送者地址                                     Addressfrom = new InternetAddress(email.getForm());                                     //设置邮件消息的发送者                                     mailMessage.setFrom(from);                                     //创建邮件的接收者地址，并设置到邮件消息中                                     Addressto = new InternetAddress(email.getTo());                                     mailMessage.setRecipient(javax.mail.Message.RecipientType.TO,                                                        to);                                     //设置邮件消息的主题                                     mailMessage.setSubject(email.getSubject());                                     //设置邮件消息发送的时间                                     mailMessage.setSentDate(newDate());                                     //设置邮件消息的主要内容                                     StringmailContent = email.getContent();                                     mailMessage.setText(mailContent);                                     //发送邮件                                     Transport.send(mailMessage);                            }catch (MessagingException | JMSException ex) {                                     ex.printStackTrace();                            }                   }         }          classMyAuthenticator extends Authenticator {                   StringuserName = null;                   Stringpassword = null;                    publicMyAuthenticator() {                   }                    publicMyAuthenticator(String username, String password) {                            this.userName= username;                            this.password= password;                   }                    protectedPasswordAuthentication getPasswordAuthentication() {                            returnnew PasswordAuthentication(userName, password);                   }         } }

 

由于是EJB3的消息驱动Bean，所以利用注解来说明消息的配置信息—消息目的地的类型和消息目的地。另外需要用@ResourceAdapter注解指定ActiveMQ。

MDB的作用就是作为消息的消费者，在这个DEMO中MDB作为接受一个对象消息（EMAIL），之后把这个EMAIL的内容以email的形式发送出去。

 

之后我们来看客户端：

关于struts和spring的整合我就不介绍了，直接说spring如何管理ActiveMQ的：

<!-- Spring管理Struts2的Action -->    <bean name="sendMailAction" class="com.tgb.collegeplatform.sendemail.action.SendMailAction"scope="prototype">       <property name="queueConnectionFactory" ref="queueConnectionFactory"></property>       <property name="queue" ref="queue"></property>    </bean>     <bean id="queueConnectionFactory" class="org.springframework.jndi.JndiObjectFactoryBean">       <property name="jndiName" value="java:activemq/QueueConnectionFactory"></property>    </bean>    <bean id="queue" class="org.springframework.jndi.JndiObjectFactoryBean">       <property name="jndiName" value="activemq/queue/outbound"></property>    </bean> 

因为MDB在ejb容器启动的时候就会向JNDI中注册一下，所以我们就用Spring来管理JNDI，通过JNDI来查找我们的消息目的地。

具体的Action代码：

package com.tgb.collegeplatform.sendemail.action; import javax.jms.Connection;import javax.jms.JMSException;import javax.jms.MessageProducer;import javax.jms.ObjectMessage;import javax.jms.Queue;import javax.jms.QueueConnectionFactory;import javax.jms.Session; import com.opensymphony.xwork2.ActionSupport;import com.tgb.collegeplatform.common.email.util.Email;  /** * 修改角色Action * @author CJQ * 2012-4-4 19:26 */@SuppressWarnings("serial")public class SendMailAction extends ActionSupport {          privateQueueConnectionFactory queueConnectionFactory;                 private Queue queue;          publicQueueConnectionFactory getQueueConnectionFactory() {                   returnqueueConnectionFactory;         }           public voidsetQueueConnectionFactory(                            QueueConnectionFactoryqueueConnectionFactory) {                   this.queueConnectionFactory= queueConnectionFactory;         }           public Queue getQueue() {                   return queue;         }           public void setQueue(Queuequeue) {                   this.queue =queue;         }           public String sendmail(){                                     Email email=newEmail();                   email.setContent("您好");                   email.setForm("[e-mail]");                   email.setPassword("××××");                   email.setUsername("[e-mail]");                   email.setSubject("测试");                   email.setTo("[e-mail]");                   email.setSmtpServer("smtp.163.com");                                     try {                            Connectioncon = queueConnectionFactory.createConnection();                            Sessionsession = con.createSession(false, Session.AUTO_ACKNOWLEDGE);                            MessageProducerproducer = session.createProducer(queue);                            ObjectMessageobjectMessage = session.createObjectMessage();                            objectMessage.setObject(email);                            producer.send(objectMessage);                            producer.close();                            session.close();                            con.close();                   } catch(JMSException e) {                            e.printStackTrace();                   }                   return"addSuccess";         }} 

运行就会看到邮箱中收到了一份邮件。