javaMail发送邮件，支持多人发送，多人收信，多附件等

import java.util.Date;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Authenticator;
import javax.mail.Multipart;
import javax.mail.internet.*;

import com.mobile.model.product.Auther;

/**
* 利用java.mail的邮件发送程序
*/

public class SendMailTest {

public static void main(String[] args) {
String title = "邮件主题";// 所发送邮件的标题
String from = "1213@qq.com";// 从那里发送
String sendTo[] = { "testjavamail123@sohu.com", "6465554@qq.com" };// 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:\\2015-11-09 .xls","D:\\新建 Microsoft Office Excel 2007 工作表.xlsx","D:\\哈哈.txt" };
try {
// MailSender mailsender = new MailSender();
sendmail(title, from, sendTo, content, fileNames,
"text/html;charset=gb2312");
} catch (Exception ex) {
ex.printStackTrace();
}
}

@SuppressWarnings("static-access")
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.qq.com"; // 设置发送邮件所用到的smtp
String servername = "1212@qq.com";  //发送地址
String serverpaswd = "254545";  //发送地址密码

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
Auther myEmailAuther = new Auther(
servername, serverpaswd);
// 设置邮件会话
mailSession = javax.mail.Session.getInstance(props,
(Authenticator) myEmailAuther);

//设置debug打印信息
//mailSession.setDebug(true);

// 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 (!from.isEmpty()) {

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++) {
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);
if(null != filenames){
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];
String displayname = filenames[i].split(",")[0];
// 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();
}

}