在不使用 built-in 应用程序的情况下发送 e-mail

Sending an e-mail without using the built-in app

我需要在没有用户输入的情况下自动发送带附件的 e-mail。我以前读过这两个答案。

Sending Email in Android using JavaMail API without using the default/built-in app

Android: Send e-mail with attachment automatically in the background.

但现在我没有收到任何 e-mail 并且我已经在 gmail 中启用了安全性较低的应用程序。这是我的代码:

public class Mail {
private String mailhost;
private String user;
private String password;
private Session session;
private String serverport;

public void main(String user, String password, String subject, String body){


    sendFromGMail(user, password, subject,body);
}

private void sendFromGMail(String from, String pass, String subject, String body){
    Properties props = System.getProperties();
    String host = "smtp.gmail.com";
    props.put("mail.smtp.ssl.enable", "true");
    props.put("mail.smtp.host", host);
    props.put("mail.smtp.user", from);
    props.put("mail.smtp.password", pass);
    props.put("mail.smtp.port", "465");
    props.put("mail.smtp.auth", "true");

    Session session = Session.getInstance(props);
    MimeMessage message = new MimeMessage(session);
    try {
        InternetAddress adressTo = new InternetAddress(from);
        message.setFrom(new InternetAddress(from));
        message.addRecipient(Message.RecipientType.TO, adressTo);

        message.setSubject(subject);
        message.setText(body);
        Transport transport = session.getTransport("smtp");
        transport.connect(host, from, pass);
        transport.sendMessage(message, message.getAllRecipients());
        transport.close();
    }
    catch(MessagingException e){
        Log.e("Not Sent", e.getMessage(), e);
    }
}

}

我就是这样使用它的:

 try {
            Mail mail = new Mail();
            mail.main(gmailusername, gmailpassword, "Test", "Test2");
            this.publishProgress("Email Sent");
        }catch(Exception e){
            Log.e("SendMail", e.getMessage(), e);
            this.publishProgress("Email not sent");
        }

编辑:我不想像标题中建议的那样使用 built-in 应用程序。只是想说清楚。

Java调试:

08-12 15:08:41.152  24062-24340/com.documax.cardreader I/System.out﹕ DEBUG: setDebug: JavaMail version 1.4.1
08-12 15:08:41.162  24062-24340/com.documax.cardreader I/System.out﹕ DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc.,1.4.1]
08-12 15:08:41.162  24062-24340/com.documax.cardreader I/System.out﹕ DEBUG SMTP: useEhlo true, useAuth true
08-12 15:08:41.162  24062-24340/com.documax.cardreader I/System.out﹕ DEBUG SMTP: trying to connect to host "smtp.gmail.com", port 465, isSSL false

修复所有这些问题 common mistakes,包括删除 Authenticator。

去掉构造函数中对 super() 的调用,你不需要它。

此外,删除 ByteArrayDataSource class。您不需要自己的,因为它 comes with JavaMail。另外,您的程序甚至没有使用它。

如果仍然无效,请使用新代码和新的故障详细信息更新您的post。