邮件Demo(SSL加密传输)

package javamail.zifangsky.com;

import java.io.UnsupportedEncodingException;

import java.util.ArrayList;

import java.util.Date;

import java.util.List;

import java.util.Properties;

import javax.activation.DataHandler;

import javax.activation.FileDataSource;

import javax.mail.Address;

import javax.mail.BodyPart;

import javax.mail.Multipart;

import javax.mail.Session;

import javax.mail.Transport;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeBodyPart;

import javax.mail.internet.MimeMessage;

import javax.mail.internet.MimeMultipart;

import javax.mail.internet.MimeUtility;

public class SendMailBySSL {

 private final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";

 private String smtpServer; // SMTP服务器地址

 private String port; // 端口

 private String username; // 登录SMTP服务器的用户名

 private String password; // 登录SMTP服务器的密码

 private List<String> recipients = new ArrayList<String>(); // 收件人地址集合

 private String subject; // 邮件主题

 private String content; // 邮件正文

 private List<String> attachmentNames = new ArrayList<String>(); // 附件路径信息集合

 public SendMailBySSL() {

 }

 public SendMailBySSL(String smtpServer, String port, String username,

     String password, List<String> recipients, String subject,

     String content, List<String> attachmentNames) {

   this.smtpServer = smtpServer;

   this.port = port;

   this.username = username;

   this.password = password;

   this.recipients = recipients;

   this.subject = subject;

   this.content = content;

   this.attachmentNames = attachmentNames;

 }

 public void setSmtpServer(String smtpServer) {

   this.smtpServer = smtpServer;

 }

 public void setPort(String port) {

   this.port = port;

 }

 public void setUsername(String username) {

   this.username = username;

 }

 public void setPassword(String password) {

   this.password = password;

 }

 public void setRecipients(List<String> recipients) {

   this.recipients = recipients;

 }

 public void setSubject(String subject) {

   this.subject = subject;

 }

 public void setContent(String content) {

   this.content = content;

 }

 public void setAttachmentNames(List<String> attachmentNames) {

   this.attachmentNames = attachmentNames;

 }

 /**

  * 进行base64加密，防止中文乱码

  * */

 public String changeEncode(String str) {

   try {

     str = MimeUtility.encodeText(new String(str.getBytes(), "UTF-8"),

         "UTF-8", "B"); // "B"代表Base64

   } catch (UnsupportedEncodingException e) {

     e.printStackTrace();

   }

   return str;

 }

 /**

  * 正式发邮件

  * */

 public boolean sendMail() {

   Properties properties = new Properties();

   properties.put("mail.smtp.host", smtpServer);

   properties.put("mail.smtp.auth", "true");

   properties.put("mail.smtp.socketFactory.class", SSL_FACTORY); //使用JSSE的SSL socketfactory来取代默认的socketfactory

   properties.put("mail.smtp.socketFactory.fallback", "false"); // 只处理SSL的连接,对于非SSL的连接不做处理

                               

   properties.put("mail.smtp.port", port);

   properties.put("mail.smtp.socketFactory.port", port);

   Session session = Session.getInstance(properties);

   session.setDebug(true);

   MimeMessage message = new MimeMessage(session);

   try {

    // 发件人

     Address address = new InternetAddress(username);

     message.setFrom(address);

    // 收件人

     for (String recipient : recipients) {

       System.out.println("收件人：" + recipient);

       Address toAddress = new InternetAddress(recipient);

       message.setRecipient(MimeMessage.RecipientType.TO, toAddress); // 设置收件人,并设置其接收类型为TO

       /**

        * TO：代表有健的主要接收者。 CC：代表有健的抄送接收者。 BCC：代表邮件的暗送接收者。

        * */

     }

    // 主题

     message.setSubject(changeEncode(subject));

    // 时间

     message.setSentDate(new Date());

     Multipart multipart = new MimeMultipart();

    // 添加文本

     BodyPart text = new MimeBodyPart();

     text.setText(content);

     multipart.addBodyPart(text);

    // 添加附件

     for (String fileName : attachmentNames) {

       BodyPart adjunct = new MimeBodyPart();

       FileDataSource fileDataSource = new FileDataSource(fileName);

       adjunct.setDataHandler(new DataHandler(fileDataSource));

       adjunct.setFileName(changeEncode(fileDataSource.getName()));

       multipart.addBodyPart(adjunct);

     }

    // 清空收件人集合，附件集合

     recipients.clear();

     attachmentNames.clear();

     message.setContent(multipart);

     message.saveChanges();

   } catch (Exception e) {

     e.printStackTrace();

     return false;

   }

   try {

     Transport transport = session.getTransport("smtp");

     transport.connect(smtpServer, username, password);

     transport.sendMessage(message, message.getAllRecipients());

     transport.close();

   } catch (Exception e) {

     e.printStackTrace();

     return false;

   }

   return true;

 }

 public static void main(String[] args) {

   List<String> recipients = new ArrayList<String>();

//    recipients.add("123456789@qq.com");

   recipients.add("admin@zifangsky.cn");

   String subject = "这封邮件是为了测试SMTP的SSL加密传输";

   String content = "这是这封邮件的正文";

   List<String> attachmentNames = new ArrayList<String>();

   attachmentNames.add("C://Users//Administrator//Desktop//kali.txt");

   SendMailBySSL sendMailBySSL = new SendMailBySSL("smtp.163.com", "465",

       "youname@163.com", "youpassword", recipients, subject, content,

       attachmentNames);

   sendMailBySSL.sendMail();

 }

}