Question

您好，我正在尝试创建一个不需要用户交互即可发送电子邮件的Android应用程序（将通知用户发送的任何电子邮件）。我正在使用此javamail：http://code.google.com/p/javamail-android/downloads/list并遵循此示例：http://www.jondev.net/articles/Sending_Emails_without_User_Intervention_%28no_Intents%29_in_Android

但我收到以下错误：

10-07 09:23:10.373: E/MailApp(9173): Could not send email
10-07 09:23:10.373: E/MailApp(9173): javax.mail.MessagingException: Could not connect to SMTP host: localhost, port: 25;
10-07 09:23:10.373: E/MailApp(9173):   nested exception is:
10-07 09:23:10.373: E/MailApp(9173):    java.net.ConnectException: failed to connect to localhost/127.0.0.1 (port 25): connect failed: ECONNREFUSED (Connection refused)
10-07 09:23:10.373: E/MailApp(9173):    at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1391)
10-07 09:23:10.373: E/MailApp(9173):    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:412)

发送电子邮件的代码：

Thread emailSendThread = new Thread(new Runnable() {

    @Override
    public void run() {


            while (true) {  

                try {
                    Thread.sleep(100);
                } 

                catch (InterruptedException e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                }

                    if (sendEmail == true) {

                        try {

                             MailSender m = new MailSender("firstname.surname@gmail.com", "password"); 

                             String[] toArr = {"example@email.com"}; 
                             m.setTo(toArr); 
                             m.setFrom("firstname.surname@gmail.com"); 
                             m.setSubject("This is an email sent using my Mail JavaMail wrapper from an Android device."); 
                             m.setBody("Email body."); 

                             try { 

                                 m.send();

                               if(m.send()) { 
                                 Toast.makeText(MainActivity.this, "Email was sent successfully.", Toast.LENGTH_LONG).show(); 
                               } else { 
                                 Toast.makeText(MainActivity.this, "Email was not sent.", Toast.LENGTH_LONG).show(); 
                               } 
                             } catch(Exception e) { 
                               //Toast.makeText(MailApp.this, "There was a problem sending the email.", Toast.LENGTH_LONG).show(); 
                               Log.e("MailApp", "Could not send email", e); 
                             } 


                        } 

                        catch (Exception e) {
                            Log.e("email", "Error", e);

                        }

                            try {
                                Thread.sleep(100);
                            }

                            catch (InterruptedException e) {
                                // TODO Auto-generated catch block
                                e.printStackTrace();
                            }


                            sendEmail = false;
                    }

            }
    }

});

我已将此电子邮件用户名和密码替换为此代码中的示例。
发送电子邮件我执行sendEmail = true;

Answer 1

您只能使用SMTP服务器发送邮件。如果您的SMTP服务器不在运行该应用程序的设备上，则需要提供可以发送电子邮件的SMTP地址。实际上，如果SMTP详细信息不正确，您的应用程序将无法成功发送电子邮件。

在没有用户交互的情况下使用javamail发送电子邮件 - java.net.ConnectException

1 个答案: