需要jar包：

mail.jar

additionnal.jar

activation.jar

public void sendEMail(final Context context) {

new Thread(new Runnable() {

@Override

public void run() {

UserInfoVo vo = UserInfoVo.getInstance(context);

try {

String userName = "邮箱@126.com";

String password = "密码";

String smtp_server = "smtp.126.com";

String from_mail_address = userName;

String to_mail_address = "发给谁@qq.com";

Authenticator auth = new PopupAuthenticator(userName,

password);

Properties mailProps = new Properties();

mailProps.put("mail.smtp.host", smtp_server);

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

mailProps.put("username", userName);

mailProps.put("password", password);

Session mailSession = Session.getDefaultInstance(mailProps,

auth);

mailSession.setDebug(true);

MimeMessage message = new MimeMessage(mailSession);

message.setFrom(new InternetAddress(from_mail_address));

message.setRecipient(Message.RecipientType.TO,

new InternetAddress(to_mail_address));

message.setSubject("校通");

SharedPreferences sp = context.getSharedPreferences("user",

Context.MODE_PRIVATE);

MimeMultipart multi = new MimeMultipart();

BodyPart textBodyPart = new MimeBodyPart();

textBodyPart.setText("" + vo.getSchoolName() + "---"

+ vo.getClassName() + "--" + vo.getRealName()

+ "---" + sp.getString("key", ""));

multi.addBodyPart(textBodyPart);

message.setContent(multi);

message.saveChanges();

Transport.send(message);

} catch (Exception ex) {

System.err.println("邮件发送失败的原因是：" + ex.getMessage());

System.err.println("具体的错误原因");

ex.printStackTrace(System.err);

}

}

}).start();

}

// public static void main(String[] args) {

//

// }

}

class PopupAuthenticator extends Authenticator {

private String username;

private String password;

public PopupAuthenticator(String username, String pwd) {

this.username = username;

this.password = pwd;

}

public PasswordAuthentication getPasswordAuthentication() {

return new PasswordAuthentication(this.username, this.password);

}