Java邮件发送程序（可以同时发给多个地址、可以带附件）

import org.apache.commons.lang.StringUtils;import javax.activation.DataHandler;import javax.activation.FileDataSource;import javax.mail.Authenticator;import javax.mail.Multipart;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeBodyPart;import javax.mail.internet.MimeMultipart;import javax.mail.internet.MimeUtility;import java.util.Date;import java.util.Properties;/** * 利用java.mail的邮件发送程序 * eg:http://www.jb51.net/article/15323.htm */public class SendMailTest{    public static void sendmail(String subject, String from, String[] to, String text, String[] filenames,String mimeType) throws Exception    {        //ResourceBundle mailProps = ResourceBundle.getBundle("mail");   可以从配置文件读取相应的参数        Properties props = new Properties();        String smtp = "smtp.163.com";  //设置发送邮件所用到的smtp (smtp.qq.com|smtp.163.com)        String servername = "sir_znp";        String serverpaswd = "123";        javax.mail.Session mailSession; //邮件会话对象        javax.mail.internet.MimeMessage mimeMsg; //MIME邮件对象        props = java.lang.System.getProperties(); //获得系统属性对象        props.put("mail.smtp.host", smtp); //设置SMTP主机        props.put("mail.smtp.auth", "true"); //是否到服务器用户名和密码验证        //到服务器验证发送的用户名和密码是否正确        Email_Autherticatorbean myEmailAuther = new Email_Autherticatorbean(servername, serverpaswd);        //设置邮件会话        mailSession = javax.mail.Session.getInstance(props, (Authenticator) myEmailAuther);        //设置传输协议        javax.mail.Transport transport = mailSession.getTransport("smtp");        //设置from、to等信息        mimeMsg = new javax.mail.internet.MimeMessage(mailSession);        if (!StringUtils.isEmpty(from))        {            InternetAddress sentFrom = new InternetAddress(from);            mimeMsg.setFrom(sentFrom);  //设置发送人地址        }        InternetAddress[] sendTo = new InternetAddress[to.length];        for (int i = 0; i < to.length; i++)        {            System.out.println("发送到:" + to[i]);            sendTo[i] = new InternetAddress(to[i]);        }        mimeMsg.setRecipients(javax.mail.internet.MimeMessage.RecipientType.TO, sendTo);        mimeMsg.setSubject(subject, "gb2312");        MimeBodyPart messageBodyPart1 = new MimeBodyPart();        //messageBodyPart.setText(UnicodeToChinese(text));        messageBodyPart1.setContent(text, mimeType);        Multipart multipart = new MimeMultipart();//附件传输格式        multipart.addBodyPart(messageBodyPart1);        for (int i = 0; i < filenames.length; i++) {            MimeBodyPart messageBodyPart2 = new MimeBodyPart();            //选择出每一个附件名            String filename = filenames[i].split(",")[0];            System.out.println("附件名：" + filename);            String displayname = filenames[i].split(",")[1];            //得到数据源            FileDataSource fds = new FileDataSource(filename);            //得到附件本身并至入BodyPart            messageBodyPart2.setDataHandler(new DataHandler(fds));            //得到文件名同样至入BodyPart            //messageBodyPart2.setFileName(displayname);            // messageBodyPart2.setFileName(fds.getName());            messageBodyPart2.setFileName(MimeUtility.encodeText(displayname));            multipart.addBodyPart(messageBodyPart2);        }        mimeMsg.setContent(multipart);        //设置信件头的发送日期        mimeMsg.setSentDate(new Date());        mimeMsg.saveChanges();        //发送邮件        transport.send(mimeMsg);        transport.close();    }    public static void main(String[] args)    {        String title = "titleTest";//所发送邮件的标题        String from ="[e-mail]";//从那里发送        String sendTo[] = {"[e-mail]","[e-mail]"};//发送到那里        //邮件的文本内容，可以包含html标记则显示为html页面        String content = "mail test!!!!!!<br><a href=#>aaa</a>";        //所包含的附件，及附件的重新命名        String fileNames[] = {"D:\\text1.txt,text1.txt","D:\\text2.txt,text2.txt"};        try {            //MailSender mailsender = new MailSender();            sendmail(title, from, sendTo, content, fileNames,"text/html;charset=gb2312");        } catch (Exception ex) { ex.printStackTrace(); }    }}

import javax.mail.Authenticator;import javax.mail.PasswordAuthentication;public class Email_Autherticatorbean  extends Authenticator{    private String m_username = null;    private String m_userpass = null;    public void setUsername(String username)    {        m_username = username;    }    public void setUserpass(String userpass)    {        m_userpass = userpass;    }    public Email_Autherticatorbean(String username, String userpass)    {        super();        setUsername(username);        setUserpass(userpass);    }    public PasswordAuthentication getPasswordAuthentication()    {        return new PasswordAuthentication(m_username,m_userpass);    }}