SendMail.java

import java.util.Properties;

import javax.activation.DataHandler;

import javax.activation.FileDataSource;

import javax.mail.Address;

import javax.mail.BodyPart;

import javax.mail.Message;

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;

public class SendMail {

   private MimeMessage mimeMsg; // MIME邮件对象

   private Session session; // 邮件会话对象

   private Properties props; // 系统属性

   private boolean needAuth = false; // smtp是否需要认证

   // smtp认证用户名和密码

   private String username;

   private String password;

   // Multipart对象,邮件内容,标题,附件等内容均添加到其中后再生成MimeMessage对象

   private Multipart mp;

   /**

    * Constructor

    *

    * @param smtp

    *            邮件发送服务器

    */

   public SendMail(String smtp) {

      setSmtpHost(smtp);

      createMimeMessage();

   }

   /**

    * 设置邮件发送服务器

    *

    * @param hostName

    *            String

    */

   public void setSmtpHost(String hostName) {

      // System.out.println("设置系统属性：mail.smtp.host = " + hostName);

      if (props == null)

         props = System.getProperties(); // 获得系统属性对象

      props.put("mail.smtp.host", hostName); // 设置SMTP主机

   }

   /**

    * 创建MIME邮件对象

    *

    * @return

    */

   public boolean createMimeMessage() {

      try {

         // System.out.println("准备获取邮件会话对象！");

         session = Session.getDefaultInstance(props, null); // 获得邮件会话对象

      } catch (Exception e) {

         System.err.println("获取邮件会话对象时发生错误！" + e);

         return false;

      }

      // System.out.println("准备创建MIME邮件对象！");

      try {

         mimeMsg = new MimeMessage(session); // 创建MIME邮件对象

         mp = new MimeMultipart();

         return true;

      } catch (Exception e) {

         System.err.println("创建MIME邮件对象失败！" + e);

         return false;

      }

   }

   /**

    * 设置SMTP是否需要验证

    *

    * @param need

    */

   public void setNeedAuth(boolean need) {

      // System.out.println("设置smtp身份认证：mail.smtp.auth = " + need);

      if (props == null)

         props = System.getProperties();

      if (need) {

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

      } else {

         props.put("mail.smtp.auth", "false");

      }

   }

   /**

    * 设置用户名和密码

    *

    * @param name

    * @param pass

    */

   public void setNamePass(String name, String pass) {

      username = name;

      password = pass;

   }

   /**

    * 设置邮件主题

    *

    * @param mailSubject

    * @return

    */

   public boolean setSubject(String mailSubject) {

      // System.out.println("设置邮件主题！");

      try {

         mimeMsg.setSubject(mailSubject);

         return true;

      } catch (Exception e) {

         System.err.println("设置邮件主题发生错误！");

         return false;

      }

   }

   /**

    * 设置邮件正文

    *

    * @param mailBody

    *            String

    */

   public boolean setBody(String mailBody) {

      try {

         BodyPart bp = new MimeBodyPart();

         bp.setContent("" + mailBody, "text/html;charset=GBK");

         mp.addBodyPart(bp);

         return true;

      } catch (Exception e) {

         System.err.println("设置邮件正文时发生错误！" + e);

         return false;

      }

   }

   /**

    * 添加附件

    *

    * @param filename

    *            String

    */

   public boolean addFileAffix(String filename) {

      // System.out.println("增加邮件附件：" + filename);

      try {

         BodyPart bp = new MimeBodyPart();

         FileDataSource fileds = new FileDataSource(filename);

         bp.setDataHandler(new DataHandler(fileds));

         bp.setFileName(fileds.getName());

         mp.addBodyPart(bp);

         return true;

      } catch (Exception e) {

         System.err.println("增加邮件附件：" + filename + "发生错误！" + e);

         return false;

      }

   }

   /**

    * 设置发信人

    *

    * @param from

    *            String

    */

   public boolean setFrom(String from) {

      // System.out.println("设置发信人！");

      try {

         mimeMsg.setFrom(new InternetAddress(from)); // 设置发信人

         return true;

      } catch (Exception e) {

         return false;

      }

   }

   /**

    * 设置收信人

    *

    * @param to

    *            String

    */

   public boolean setTo(String to) {

      if (to == null)

         return false;

      try {

         mimeMsg.setRecipients(Message.RecipientType.TO,

                InternetAddress.parse(to));

         return true;

      } catch (Exception e) {

         return false;

      }

   }

   /**

    * 设置抄送人

    *

    * @param copyto

    *            String

    */

   public boolean setCopyTo(String copyto) {

      if (copyto == null)

         return false;

      try {

         mimeMsg.setRecipients(Message.RecipientType.CC,

                (Address[]) InternetAddress.parse(copyto));

         return true;

      } catch (Exception e) {

         return false;

      }

   }

   /**

    * 发送邮件

    */

   public boolean sendOut() {

      try {

         mimeMsg.setContent(mp);

         mimeMsg.saveChanges();

         System.out.println("正在发送邮件....");

         Session mailSession = Session.getInstance(props, null);

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

         transport.connect((String) props.get("mail.smtp.host"), username,

                password);

         transport.sendMessage(mimeMsg,

               mimeMsg.getRecipients(Message.RecipientType.TO));

         transport.sendMessage(mimeMsg,

               mimeMsg.getRecipients(Message.RecipientType.CC));

         // transport.send(mimeMsg);

         System.out.println("发送邮件成功！");

         transport.close();

         return true;

      } catch (Exception e) {

         System.err.println("邮件发送失败！" + e);

         return false;

      }

   }

   /**

    * 调用sendOut方法完成邮件发送

    *

    * @param smtp

    * @param from

    * @param to

    * @param subject

    * @param content

    * @param username

    * @param password

    * @return boolean

    */

   public static boolean send(String smtp, String from, String to,

         String subject, String content, String username, String password) {

      SendMail theMail = new SendMail(smtp);

      theMail.setNeedAuth(true); // 需要验证

      if (!theMail.setSubject(subject))

         return false;

      if (!theMail.setBody(content))

         return false;

      if (!theMail.setTo(to))

         return false;

      if (!theMail.setFrom(from))

         return false;

      theMail.setNamePass(username, password);

      if (!theMail.sendOut())

         return false;

      return true;

   }

   /**

    * 调用sendOut方法完成邮件发送,带抄送

    *

    * @param smtp

    * @param from

    * @param to

    * @param copyto

    * @param subject

    * @param content

    * @param username

    * @param password

    * @return boolean

    */

   public static boolean sendAndCc(String smtp, String from, String to,

         String copyto, String subject, String content, String username,

         String password) {

      SendMail theMail = new SendMail(smtp);

      theMail.setNeedAuth(true); // 需要验证

      if (!theMail.setSubject(subject))

         return false;

      if (!theMail.setBody(content))

         return false;

      if (!theMail.setTo(to))

         return false;

      if (!theMail.setCopyTo(copyto))

         return false;

      if (!theMail.setFrom(from))

         return false;

      theMail.setNamePass(username, password);

      if (!theMail.sendOut())

         return false;

      return true;

   }

   /**

    * 调用sendOut方法完成邮件发送,带附件

    *

    * @param smtp

    * @param from

    * @param to

    * @param subject

    * @param content

    * @param username

    * @param password

    * @param filename

    *            附件路径

    * @return

    */

   public static boolean send(String smtp, String from, String to,

         String subject, String content, String username, String password,

         String filename) {

      SendMail theMail = new SendMail(smtp);

      theMail.setNeedAuth(true); // 需要验证

      if (!theMail.setSubject(subject))

         return false;

      if (!theMail.setBody(content))

         return false;

      if (!theMail.addFileAffix(filename))

         return false;

      if (!theMail.setTo(to))

         return false;

      if (!theMail.setFrom(from))

         return false;

      theMail.setNamePass(username, password);

      if (!theMail.sendOut())

         return false;

      return true;

   }

   /**

    * 调用sendOut方法完成邮件发送,带附件和抄送

    *

    * @param smtp

    * @param from

    * @param to

    * @param copyto

    * @param subject

    * @param content

    * @param username

    * @param password

    * @param filename

    * @return

    */

   // 带有附件

   public static boolean sendAndCc(String smtp, String from, String to,

         String copyto, String subject, String content, String username,

         String password, String filename) {

      SendMail theMail = new SendMail(smtp);

      theMail.setNeedAuth(true); // 需要验证

      if (!theMail.setSubject(subject))

         return false;

      if (!theMail.setBody(content))

         return false;

      // if (!theMail.addFileAffix(filename))

      // return false;

      if (!theMail.setTo(to))

         return false;

      if (!theMail.setCopyTo(copyto))

         return false;

      if (!theMail.setFrom(from))

         return false;

      theMail.setNamePass(username, password);

      if (!theMail.sendOut())

         return false;

      return true;

   }

   public static void main(String[] args) {

      String smtp = "SMTP服务器";

      smtp = "smtp.qq.com";

      String from = "发信人";

      String to = "收信人";

      String copyto = "抄送人";

      String subject = "邮件主题";

      String content = "邮件内容";

      String username = "用户名";

      String password = "密码";

      String filename = "附件路径，如：F:\\笔记<A>\\struts2</A>与mvc.txt";

      SendMail.sendAndCc(smtp, from, to, copyto, subject, content, username,

            password, filename);

   }

}