java – 在Android中的后台自动发送邮件

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当我在日志显示邮件发送但按实际邮件未发送时按下发送按钮.请帮我下面的代码.
为什么不发送邮件？

GMailSender.java

package com.example.sendmail;

import javax.activation.DataHandler;
import javax.activation.Datasource;
import javax.activation.FileDatasource;
import javax.mail.bodyPart;
import javax.mail.message;
import javax.mail.Multipart;
import javax.mail.passwordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.Mimemessage;
import javax.mail.internet.MimeMultipart;

import java.io.byteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.outputStream;
import java.security.Security;
import java.util.Properties;

public class GMailSender extends javax.mail.Authenticator {
    private String mailhost = "smtp.gmail.com";
    private String user;
    private String password;
    private Session session;

    private Multipart _multipart = new MimeMultipart();
    static {
        Security.addProvider(new com.example.sendmail.JSSEProvider());
    }

    public GMailSender(String user, String password) {
        thiS.User = user;
        this.password = password;

        Properties props = new Properties();
        props.setProperty("mail.transport.protocol", "smtp");
        props.setProperty("mail.host", mailhost);
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.port", "465");
        props.put("mail.smtp.socketFactory.port", "465");
        props.put("mail.smtp.socketFactory.class",
                "javax.net.ssl.SSLSocketFactory");
        props.put("mail.smtp.socketFactory.fallBACk", "false");
        props.setProperty("mail.smtp.quitwait", "false");

        session = Session.getDefaulTinstance(props, this);
    }

    protected passwordAuthentication getpasswordAuthentication() {
        return new passwordAuthentication(user, password);
    }

    public synchronized void sendMail(String subject, String body,
            String sender, String recipients) throws Exception {
        try {
            Mimemessage message = new Mimemessage(session);
            DataHandler handler = new DataHandler(new ByteArrayDatasource(
                    body.getBytes(), "text/plain"));
            message.setSender(new InternetAddress(sender));
            message.setSubject(subject);
            message.setDataHandler(handler);
            BodyPart messageBodyPart = new MimeBodyPart();
            messageBodyPart.setText(body);
            _multipart.addBodyPart(messageBodyPart);

            // Put parts in message
            message.setContent(_multipart);
            if (recipients.indexOf(',') > 0)
                message.setRecipients(message.RecipientType.TO,
                        InternetAddress.parse(recipients));
            else
                message.setRecipient(message.RecipientType.TO,
                        new InternetAddress(recipients));
            Transport.send(messagE);
        } catch (Exception E) {

        }
    }

    public void addAttachment(String fileName) throws Exception {
        BodyPart messageBodyPart = new MimeBodyPart();
        Datasource source = new FileDatasource(fileName);
        messageBodyPart.setDataHandler(new DataHandler(sourcE));
        messageBodyPart.setFilename("download image");

        _multipart.addBodyPart(messageBodyPart);
    }

    public class ByteArrayDatasource implements Datasource {
        private byte[] data;
        private String type;


        public ByteArrayDatasource(byte[] data, String typE) {
            super();
            this.data = data;
            this.type = type;
        }

        public ByteArrayDatasource(byte[] data) {
            super();
            this.data = data;
        }


        public void setType(String typE) {
            this.type = type;
        }

        public String getContentType() {
            if (type == null)
                return "application/octet-stream";
            else
                return type;
        }

        public InputStream geTinputStream() throws IOException {
            return new ByteArrayInputStream(data);
        }

        public String getName() {
            return "ByteArrayDatasource";
        }

        public OutputStream getOutputStream() throws IOException {
            throw new IOException("Not Supported");
        }
    }
}

JSSEProvider.java

package com.example.sendmail;

import java.security.AccessController;
import java.security.Provider;

public final class JSSEProvider extends Provider {

    public JSSEProvider() {
        super("HarmonyJSSE", 1.0, "Harmony JSSE Provider");
        AccessController
                .doprivileged(new java.security.PrivilegedAction<Void>() {
                    public Void run() {
                        put("SSLContext.TLS",
                                "org.apache.harmony.xnet.provider.jsse.SSLContextImpl");
                        put("Alg.Alias.SSLContext.TLSv1", "TLS");
                        put("KeymanagerFactory.X509",
                                "org.apache.harmony.xnet.provider.jsse.KeymanagerFactoryImpl");
                        put("TrustManagerFactory.X509",
                                "org.apache.harmony.xnet.provider.jsse.TrustManagerFactoryImpl");
                        return null;
                    }
                });
    }
}

@H_762_0@mainActivity.java

package com.example.sendmail;

import android.os.bundle;
import android.os.Environment;
import android.Annotation.SuppressLint;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.button;
import android.widget.Toast;

 public class MainActivity extends Activity {
    Button send;
//String filename = "/sdcard/mysdfile";
    @Override
    protected void onCreate(Bundle savedInstanceStatE) {
        super.onCreate(savedInstanceStatE);
        setContentView(R.layout.activity_main);

        send = (Button) findViewById(R.id.send);
        send.setOnClickListener(new View.onClickListener() {

            public void onClick(View v) {
                // TODO Auto-generated method stub
                new Thread(new Runnable() {
                    @SuppressLint("SdCardPath") public void run() {
                        try {
                            GMailSender sender = new GMailSender("sendermail@gmail.com","**password***");
                            ///Toast.makeText(getApplicationContext(), "Connect", Toast.LENGTH_LONG).show();
                            //sender.addAttachment(fileName);
                            sender.addAttachment(Environment.getExternalStorageDirectory().getPath()+"/sdcard/mysdfile.txt");
                            sender.sendMail("Test mail", "This mail has been sent from android app along with attachment","sendermail@gmail.com",
                                    "recievermail@yahoo.com");

                            Log.i("Mail", "Sent");
                            //Toast.makeText(getApplicationContext(),"Your mail has been sent",Toast.LENGTH_LONG).show();


                        } catch (Exception E) {
                            runOnUiThread(new Runnable() 
                            {
                                public void run() 
                                {
                                    Toast.makeText(getApplicationContext(), "Error", Toast.LENGTH_SHORT).show();    
                                }
                            }); 

                            Log.i("Mail", "Failed"+E);
                            //Toast.makeText(getApplicationContext(),"Error",Toast.LENGTH_LONG).show();

                        }
                    }
                }).start();

                send.setText("Ok");
            }
        });

    }

}

没有出现错误,也没有在发件人邮件中发送邮件,也没有在收件人邮件收件箱中发送邮

解决方法:

@H_762_0@mainActivity.java

按下按钮点击::

String fromEmail = "sample@gmail.com";
                            String frompassword = "xxxxxx";
                            String toEmails = to_sample@gmail.com;
                            String ad@L_198_24@mail = "admin@gmail.com";
                            String emailSubject = "App Registration Mail";
                            String adminSubject = "App Registration Mail";
                            String emailBody = "Your message";
                            String adminBody = "Your message";
                            new SendMailTask(YOurActivity.this).execute(fromEmail,
                                    frompassword, toEmails, emailSubject, emailBody);

GMail.java

import java.io.UnsupportedEncodingException;
import java.util.List;
import java.util.Properties;

import javax.mail.message;
import javax.mail.messagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.Mimemessage;

import android.app.AlertDialog.builder;
import android.util.Log;

public class GMail {

    final String emailPort = "587";// gmail's smtp port
    final String smtpAuth = "true";
    final String starttls = "true";
    final String emailHost = "smtp.gmail.com";

    String fromEmail;
    String frompassword;
    @SuppressWarnings("rawtypes")
    String toEmailList;
    String emailSubject;
    String emailBody;

    Properties emailProperties;
    Session mailSession;
    Mimemessage emailmessage;

    public GMail() {

    }

    @SuppressWarnings("rawtypes")
    public GMail(String fromEmail, String frompassword,
            String toEmailList, String emailSubject, String emailBody) {
        this.fromEmail = fromEmail;
        this.frompassword = frompassword;
        this.toEmailList = toEmailList;
        this.emailSubject = emailSubject;
        this.emailBody = emailBody;

        emailProperties = System.getProperties();
        emailProperties.put("mail.smtp.port", emailPort);
        emailProperties.put("mail.smtp.auth", smtpAuth);
        emailProperties.put("mail.smtp.starttls.enable", starttls);
        Log.i("GMail", "Mail server properties set.");
    }

    public Mimemessage createEmailmessage() throws AddressException,
            messagingException, UnsupportedEncodingException {

        mailSession = Session.getDefaulTinstance(emailProperties, null);
        emailmessage = new Mimemessage(mailSession);

        emailmessage.setFrom(new InternetAddress(fromEmail, fromEmail));

            Log.i("GMail","toEmail: "+toEmailList);
            emailmessage.addRecipient(message.RecipientType.TO,
                    new InternetAddress(toEmailList));


        emailmessage.setSubject(emailSubject);
        emailmessage.setContent(emailBody, "text/html");// for a html email
        // emailmessage.setText(emailBody);// for a text email
        Log.i("GMail", "Email message created.");
        return emailmessage;
    }

    public void sendEmail() throws AddressException, messagingException {

        Transport transport = mailSession.getTransport("smtp");
        transport.connect(emailHost, fromEmail, frompassword);
        Log.i("GMail","allrecipients: "+emailmessage.getAllRecipients());
        transport.sendmessage(emailmessage, emailmessage.getAllRecipients());
        transport.close();
        Log.i("GMail", "Email sent successfully.");

    }


}

SendMailTask​​.java：

import java.util.List;

import android.app.Activity;
import android.app.progressDialog;
import android.app.AlertDialog.builder;
import android.os.AsyncTask;
import android.util.Log;

@SuppressWarnings("rawtypes")
public class SendMailTask extends AsyncTask {

    private ProgressDialog statusDialog;
    private Activity sendMailActivity;

    public SendMailTask(Activity activity) {
        sendMailActivity = activity;

    }

    protected void onPreExecute() {
        statusDialog = new ProgressDialog(sendMailActivity);
        statusDialog.setmessage("GetTing ready...");
        statusDialog.seTindeterminate(false);
        statusDialog.setCancelable(false);
        statusDialog.show();
    }

    @SuppressWarnings("unchecked")
    @Override
    protected Object doInBACkground(Object... args) {
        try {
            Log.i("SendMailTask", "About to instantiate GMail...");
            publishProgress("Processing input....");
            GMail androidEmail = new GMail(args[0].toString(),
                    args[1].toString(),  args[2].toString(), args[3].toString(),
                    args[4].toString());
            publishProgress("Preparing mail message....");
            androidEmail.createEmailmessage();
            publishProgress("Sending email....");
            androidEmail.sendEmail();
            publishProgress("Email Sent.");
            Log.i("SendMailTask", "Mail Sent.");

            Config.mailsuccess="1";


        } catch (Exception E) {
            publishProgress(e.getmessage());
            Log.e("SendMailTask", e.getmessage(), E);
        }
        return null;
    }

    @Override
    public void onProgressupdate(Object... values) {
        statusDialog.setmessage(values[0].toString());

    }

    @Override
    public void onPostExecute(Object result) {
        statusDialog.dismiss();
    }


}

Library files

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