java实现发送邮件功能

package util;

import java.io.InputStream;

import java.util.Properties;

import javax.activation.DataHandler;

import javax.activation.FileDataSource;

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;

/***

  *  Send edm to mail

  *  Jerry.li

  *  2012-05-02

  */

public class EdmMail {

  

      private static String MAIL_TITLE = null ;

      private String mailServerHost = "" ;      

      private String fromAddress = "" ; //发送人邮箱地址

      private String toAddress = "" ;   //收件人邮箱地址

      private MimeMessage mimemsg;     //Mime邮件对象

      private Session session;         //邮件会话对象

      private Properties properties;   //系统属性

      private Multipart part;          //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 String username = "" ;    //设置smtp的用户名

      private String password = "" ;    //设置smtp的密码

      private String profile = "search.properties" ;

      

      

      private EdmMail(){

       getValues();

       setSmtpHost(mailServerHost);

       getMailSession();

      }

      

      public EdmMail(String sub){

       this ();

       MAIL_TITLE = sub;

      }

      

      private boolean getValues(){

       Properties proties = null ;

       InputStream input = null ;

       try {

        input = EdmMail. class .getClassLoader().getResourceAsStream(profile);

     proties = new Properties();

     proties.load(input);

     mailServerHost = proties.getProperty( "MAIL_HOST" );

     fromAddress = proties.getProperty( "MAIL_FROM" );

     username = proties.getProperty( "MAIL_USERNAME" );

     password = proties.getProperty( "MAIL_PASSWORD" );

     toAddress = proties.getProperty( "MAILTO_LIST" );

     return true ;

    } catch (Exception e) {

              System.out.println( "读取配置文件出错！" +e);

              return false ;

    }

      }

      

      /***

       * 设置SMTP主机

       */

   private void setSmtpHost(String mailhost){

       if (properties == null ){

        properties = System.getProperties(); //获得系统属性

       }

       properties.setProperty( "mail.smtp.host" , mailhost);

      }

   

   /***

    *  获得邮件会话对象

    *  创建MimeMessage对象

    */

   private boolean getMailSession(){

    try {

     session = Session.getDefaultInstance(properties, null );

    } catch (Exception e) {

     System.out.println( "获取邮件会话对象出错，原因：" +e);

     return false ;

    }

    try {

     mimemsg = new MimeMessage(session);

     part = new MimeMultipart();

     return true ;

    } catch (Exception e) {

              System.out.println( "创建Mime邮件对象出错，原因：" +e);

              return false ;

    }

   }

   

   /***

    * 设置smtp身份认证

    * mail.smtp.auth = true

    */

   private void setSmtpAuth( boolean bool){

       if (properties == null ){

        properties = System.getProperties(); //获得系统属性

       }

       if (bool){

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

       } else {

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

       }

   }

   

   /***

    *  设置邮件的主题

    */

      private boolean setMailSub(String mailsubject){

       try {

        mimemsg.setSubject(mailsubject, "GBK" );

     return true ;

    } catch (Exception e) {

     System.out.println( "设置邮件标题出错，原因：" +e);

     return false ;

    }

      }

      

      /***

       * 设置邮件体格式

       */

      private boolean setMailBody(String mailBody){

       BodyPart bdyPart = new MimeBodyPart();

       try {

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

     part.addBodyPart(bdyPart);

     return true ;

    } catch (Exception e) {

     System.out.println( "设置邮件体格式出错，原因：" +e);

     return false ;

    }

      }

      

      /***

       *  添加邮件附件

       */

      

      private boolean addAttach(String filePath){

       BodyPart bdy = new MimeBodyPart();

       try {

        FileDataSource dataSource = new FileDataSource(filePath);

     bdy.setDataHandler( new DataHandler(dataSource));

     bdy.setFileName(dataSource.getName());   //设置附件名

     part.addBodyPart(bdy);

     return true ;

    } catch (Exception e) {

     System.out.println( "添加附件：" +filePath+ "出错，原因：" +e);

     return false ;

    }

      }

      

      /***

       *  设置邮件发送人

       */

      private boolean setMailFrom(String from){

       try {

        mimemsg.setFrom( new InternetAddress(from));

     return true ;

    } catch (Exception e) {

     System.out.println( "设置邮件发送人：" +from+ "出错，原因：" +e);

     return false ;

    }

      }

      

      /***

       *  设置邮件接收人

       */

      private boolean setMailTo(String mailto){

       if (mailto == null ){

        return false ;

       }

       try {

        mimemsg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(mailto));

     return true ;

       } catch (Exception e) {

             System.out.println( "设置邮件接收人：" +mailto+ "出错，原因：" +e);

             return false ;

       }

      }

      

      /***

       *  发送邮件

       */

      private boolean sendout(){

       try {

        mimemsg.setContent(part);

        mimemsg.saveChanges();

     System.out.println( "开始发送邮件......" );

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

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

     tsport.connect((String)properties.get( "mail.smtp.host" ), username, password);

     tsport.sendMessage(mimemsg, mimemsg.getRecipients(Message.RecipientType.TO));

     tsport.close();

     System.out.println( "发送邮件成功！" );

     return true ;

    } catch (Exception e) {

              System.out.println( "发送邮件出错原因：" +e);

              return false ;

    }

      }

      

      //

      public void sendMail(String fileAttach){

       //拼接整个邮件的内容

       StringBuffer content = new StringBuffer();

       //头部

       content.append( "<html>" );

       content.append( "<head><META content='text/html; charset=gbk' http-equiv=Content-Type>" );

       content.append( "<META name=GENERATOR content='MSHTML 8.00.6001.18702'>" );

       content.append( "<style type='text/css'>" );

       content.append( ".STYLE1 {color: #000000}" );

       content.append( "TABLE {FONT-SIZE: 12px; COLOR: #444444;LINE-HEIGHT: 14px; FONT-FAMILY: '宋体', 'Arial'; TEXT-DECORATION: none;}" );

       content.append( ".STYLE3 { font-size: 13px;color: #FD9800; font-weight: bold;}" );

       content.append( "</style>" );

       content.append( "</head>" );

       //显示邮件内容

       content.append( "<body>" );

       content.append( "<table width='749px' align='left'>" );

       content.append( "<tr><td width='749' height='10px'></td></tr>" );

       content.append( "<tr><td><p align='left'><font size=2>for test!</font></p></td></tr>" );

       content.append( "</table>" );

       //content.append("");

       content.append( "</body>" );

       content.append( "</html>" );

       

       System.out.println( "content********" +content);

       

       setSmtpAuth( false );

       if (setMailSub(MAIL_TITLE) == false ){

        return ;

       }

       if (setMailBody(content.toString()) == false ){

        return ;

       }

       if (setMailTo(toAddress) == false ){

        return ;

       }

       if (setMailFrom(fromAddress) == false ){

        return ;

       }

       

       if (addAttach(fileAttach) == false ){

        return ;

       }

       if (sendout()== false ){

        return ;

       }

      }

      

      public static void main(String[] args) {

       EdmMail m = new EdmMail( "test" );

       //附件的位置

       m.sendMail( "D:\\workspace\\test.xls" );

   }

}