eMail with attachment using java mail api in android

Question

I am beginning with android and this is my first program.

This is what my code looks like. I am able to send an email (in background) using this code but unable to a

Answer 1

package com.mail.example;

import java.util.Properties;

import javax.activation.CommandMap;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.activation.MailcapCommandMap;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
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;

public class SendFileEmail
{
 public void send(String filepath)
 {

  // Recipient's email ID needs to be mentioned.
  String to = "abc@gmail.com";

  // Sender's email ID needs to be mentioned
  final String from = "xyz@gmail.com";
 // final String username = "xyz";
  final String pass = "xyz123";
  // Assuming you are sending email from localhost
  String host = "smtp.gmail.com";

  // Get system properties
  Properties properties = System.getProperties();

  // Setup mail server
  properties.setProperty("mail.smtp.host", host);
  properties.put("mail.smtp.user", from);
  properties.put("mail.smtp.password", pass);
  properties.put("mail.smtp.port", "587");
  properties.put("mail.smtp.starttls.enable","true");
  properties.put("mail.smtp.auth", "true");

  //Read more: http://mrbool.com/how-to-work-with-java-mail-api-in-android/27800#ixzz3E2T8ZbpJ


  // Get the default Session object.
  //Session session = Session.getDefaultInstance(properties);


  Session session = Session.getInstance(properties, new javax.mail.Authenticator() {
        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication(from, pass);
        }
    });


  try{
     // Create a default MimeMessage object.
     MimeMessage message = new MimeMessage(session);

     // Set From: header field of the header.
     message.setFrom(new InternetAddress(from));

     // Set To: header field of the header.
     message.addRecipient(Message.RecipientType.TO,
                              new InternetAddress(to));

     // Set Subject: header field
     message.setSubject("This is the Subject Line!");

     // Create the message part 
     BodyPart messageBodyPart = new MimeBodyPart();

     // Fill the message
     messageBodyPart.setText("This is message body");

     // Create a multipar message
     Multipart multipart = new MimeMultipart();

     // Set text message part
     multipart.addBodyPart(messageBodyPart);

     // Part two is attachment
     messageBodyPart = new MimeBodyPart();
     DataSource source = new FileDataSource(filepath);
     messageBodyPart.setDataHandler(new DataHandler(source));
     messageBodyPart.setFileName(filepath);
     multipart.addBodyPart(messageBodyPart);


     MailcapCommandMap mc = (MailcapCommandMap) CommandMap.getDefaultCommandMap(); 
     mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html"); 
     mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml"); 
     mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain"); 
     mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed"); 
     mc.addMailcap("message/rfc822;; x-java-content- handler=com.sun.mail.handlers.message_rfc822");

     // Send the complete message parts
     message.setContent(multipart);
     // Send message
     Transport.send(message);
     System.out.println("Sent message successfully....");
  }catch (MessagingException mex) {
     mex.printStackTrace();
  }
}
 }

call the method like this

public class SendMail {

/**
 * @param args
 */
public static void main(String[] args) {
    new SendFileEmail().send("sample.xlsx");
}

}

If the file is in asset folder example test.txt

File f = new File(getCacheDir()+"/test.txt");
if (!f.exists()) try {

InputStream is = getAssets().open("test.txt");
int size = is.available();
byte[] buffer = new byte[size];
is.read(buffer);
is.close();


FileOutputStream fos = new FileOutputStream(f);
fos.write(buffer);
fos.close();
 } catch (Exception e) { throw new RuntimeException(e); }

new SendFileEmail().send(f.getPath());