//原文链接：http://liuwanxiang.iteye.com/blog/2212309
//需要下载mail.jar  地址：http://www.oracle.com/technetwork/java/index-138643.html
//简单调试一下可用，替换一下邮箱和授权码，邮箱密码是授权码，详情百度。
import java.io.File;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import java.util.Properties;import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
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;/*** 邮件多人发送，可设置发送，抄送，密送* * @author zhutongyu* */
public class SendMail {private static SendMail instance = null;private SendMail() {}public static SendMail getInstance() {if (instance == null) {instance = new SendMail();}return instance;}public void send(String to[], String cs[], String ms[], String subject,String content, String formEmail, String fileList[]) {try {Properties p = new Properties(); // Properties p =// System.getProperties();p.put("mail.smtp.auth", "true");p.put("mail.transport.protocol", "smtp");p.put("mail.smtp.host", "smtp.qq.com");p.put("mail.smtp.port", "25");// 建立会话Session session = Session.getInstance(p);Message msg = new MimeMessage(session); // 建立信息BodyPart messageBodyPart = new MimeBodyPart();Multipart multipart = new MimeMultipart();msg.setFrom(new InternetAddress(formEmail)); // 发件人
String toList = null;String toListcs = null;String toListms = null;// 发送,if (to != null) {toList = getMailList(to);InternetAddress[] iaToList = new InternetAddress().parse(toList);msg.setRecipients(Message.RecipientType.TO, iaToList); // 收件人
            }// 抄送if (cs != null) {toListcs = getMailList(cs);InternetAddress[] iaToListcs = new InternetAddress().parse(toListcs);msg.setRecipients(Message.RecipientType.CC, iaToListcs); // 抄送人
            }// 密送if (ms != null) {toListms = getMailList(ms);InternetAddress[] iaToListms = new InternetAddress().parse(toListms);msg.setRecipients(Message.RecipientType.BCC, iaToListms); // 密送人
            }msg.setSentDate(new Date()); // 发送日期msg.setSubject(subject); // 主题msg.setText(content); // 内容// 显示以html格式的文本内容messageBodyPart.setContent(content, "text/html;charset=gbk");multipart.addBodyPart(messageBodyPart);// 2.保存多个附件if (fileList != null) {addTach(fileList, multipart);}msg.setContent(multipart);// 邮件服务器进行验证Transport tran = session.getTransport("smtp");tran.connect("smtp.qq.com", "postmaster@qq.com","asiamedia");tran.sendMessage(msg, msg.getAllRecipients()); // 发送System.out.println("邮件发送成功");} catch (Exception e) {e.printStackTrace();}}// 添加多个附件public void addTach(String fileList[], Multipart multipart)throws MessagingException, UnsupportedEncodingException {for (int index = 0; index < fileList.length; index++) {MimeBodyPart mailArchieve = new MimeBodyPart();FileDataSource fds = new FileDataSource(fileList[index]);mailArchieve.setDataHandler(new DataHandler(fds));mailArchieve.setFileName(MimeUtility.encodeText(fds.getName(),"GBK", "B"));multipart.addBodyPart(mailArchieve);}}private String getMailList(String[] mailArray) {StringBuffer toList = new StringBuffer();int length = mailArray.length;if (mailArray != null && length < 2) {toList.append(mailArray[0]);} else {for (int i = 0; i < length; i++) {toList.append(mailArray[i]);if (i != (length - 1)) {toList.append(",");}}}return toList.toString();}public static void main(String args[]) {SendMail send = SendMail.getInstance();String to[] = { "zhutongyu@qq.com" };String cs[] = null;String ms[] = null;String subject = "测试一下";String content = "这是邮件内容，仅仅是测试，不需要回复";String formEmail = "zhutongyu@qq.com";String[] arrArchievList = new String[4];arrArchievList[0] = "c:\\2012052914033429140297.rar";arrArchievList[1] = "c:\\topSearch.html";arrArchievList[2] = "c:\\topSearch2.html";arrArchievList[3] = "c:\\logo_white.png";// 2.保存多个附件
        send.send(to, cs, ms, subject, content, formEmail, arrArchievList);}}