JAVA MAIL是利用现有的邮件账户发送邮件的工具,比如说,我在网易注册一个邮箱账户,通过JAVA Mail的操控,我可以不亲自登录网易邮箱,让程序自动的使用网易邮箱发送邮件。这一机制被广泛的用在注册激活和垃圾邮件的发送等方面。

JavaMail可以到http://www.oracle.com/technetwork/java/javamail/index-138643.html进行下载,并将mail.jar添加到classpath即可。如果你使用的是JAVA EE SDK,则可以在C:\glassfishv3\glassfish\modules\mail.jar找到所需的jar包,同样需要添加的classpath。

第一步:

注册网易邮箱

第二步:

需要开启SMTP协议

第三步:

书写邮件发送代码

public class MailService{  
     public static final String HOST = "smtp.163.com";
     public static final String PROTOCOL = "smtp";  
     public static final int PORT = 25;
     public static boolean sendMail(String subject, String toMail,String content, String... files) {  
         boolean isFlag = false;  
         try {  
      //邮箱账号
             String smtpFromMail = "***********@163.com";  //密码(不是你注册邮箱登录密码)
             String pwd = "ziupkzexofqavuoo"; 
             int port = 25; 
             String host = "smtp.163.com"; 
   
             Properties props = new Properties();  
             props.put("mail.smtp.host", HOST);
             props.put("mail.store.protocol" , PROTOCOL);
             props.put("mail.smtp.port", PORT);
             props.put("mail.smtp.auth" , true);
             Session session = Session.getDefaultInstance(props);  
             session.setDebug(false);  
   
             MimeMessage message = new MimeMessage(session);  
             try {  
                 message.setFrom(new InternetAddress(smtpFromMail, "QQ"));  
                 message.addRecipient(Message.RecipientType.TO,  
                         new InternetAddress(toMail));  
                 message.setSubject(subject);  
                 message.addHeader("charset", "UTF-8");  
                 Multipart multipart = new MimeMultipart();  
                 BodyPart contentPart = new MimeBodyPart();  
                 contentPart.setText(content);  
   
                 contentPart.setHeader("Content-Type", "text/html; charset=UTF-8");  
                 multipart.addBodyPart(contentPart);  
                   
                 for (String file : files) {  
                     File usFile = new File(file);  
                     MimeBodyPart fileBody = new MimeBodyPart();  
                     DataSource source = new FileDataSource(file);  
                     fileBody.setDataHandler(new DataHandler(source));  
                     sun.misc.BASE64Encoder enc = new sun.misc.BASE64Encoder();  
                     fileBody.setFileName("UTF-8"  
                             + enc.encode(usFile.getName().getBytes()) + "?=");  
                     multipart.addBodyPart(fileBody);  
                 }  
   
                 message.setContent(multipart);  
                 message.setSentDate(new Date());  
                 message.saveChanges();  
                 Transport transport = session.getTransport("smtp");  
   
                 transport.connect(host, port, smtpFromMail, pwd);  
                 transport.sendMessage(message, message.getAllRecipients());  
                 transport.close();  
                 isFlag = true;  
             } catch (Exception e) { 
             e.printStackTrace();
                 isFlag = false;  
             }  
         } catch (Exception e) {  
             e.printStackTrace();  
         }  
         return isFlag;  
     }      //写个主函数去测试
     public static void main(String[] args) {//标题:你好;接收者:**********@qq.com;内容:测试
     MailService.sendMail("你好", "**********@qq.com", "测试");
     }
 }

第四步:

剩下的就是去查看邮件是否发送成功了。呼呼~~

第五步:

去垃圾邮件中查找你刚才测试邮件:那是应为你接收的邮件过多,系统会默认把这些邮件当做垃圾邮件