javax 认证失败

Question

我正在 android 上试用电子邮件应用程序。我先输入用户名和密码
然后在下一个 Activity 中，我获取收件人地址主题和消息并发送电子邮件。 我收到错误 JavaX 身份验证失败。这是我的邮件身份验证和发送代码。发送按钮的 OnClick 函数调用此类

public class MailHandler {
final String username;
final String password;
public MailHandler(String username,String password){
    this.username=username;
    this.password=password;

}

public void sendMail(String Sub,String msg,String sender,String cc,String to) {
    Properties props = new Properties();
    props.put("mail.smtp.auth", "true");
    props.put("mail.smtp.starttls.enable", "true");
    props.put("mail.smtp.host", "smtp.gmail.com");
    props.put("mail.smtp.port", "587");

    Session session = Session.getInstance(props,
      new javax.mail.Authenticator() {
        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication(username, password);
        }
      });

    try {

        Message message = new MimeMessage(session);
        message.setFrom(new InternetAddress(sender));
        message.setRecipients(Message.RecipientType.TO,
            InternetAddress.parse(to));
        message.setSubject(Sub);
        message.setText(msg);

        Transport.send(message);

        System.out.println("Done");

    } catch (MessagingException e) {
        throw new RuntimeException(e);
    }
}
}

Answer 1

一个简单的解决方案是使用最后的String参数，比如 public void sendMail(final String username ,final String password );.