Arquivo com as propriedades de Email (mail.properties)
#Configuracao de Email
mail.transport.protocol=smtp
mail.debug=true
#
mail.smtp.auth=true
mail.smtp.host=smtp.gmail.com
mail.smtp.port=25
#
mail.smtp.from={usuario}@gmail.com
mail.smtp.user={usuario}
mail.smtp.password={senha}
Classe MailAutenticator que estende
java.mail.Authenticator e precisa ser utilizada caso o servidor
smtp exiga autenticação para o envio de emails.
import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
/**
* Classe de encapsulamento de informações para uso durante o processo de
* autenticação no servidor de e-mail.
*/
public class MailAuthenticator extends Authenticator {
private String username, password;
public MailAuthenticator(String user, String pwd) {
username = user;
password = pwd;
}
/**
* Retorna um elemento de autenticação para e-mail
* a partir de usuário e senha pré-configurados
*/
@Override
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
}
Classe MailSender que é responsável por estabelecer comunicação com o servidor e enviar os email.
import java.io.FileInputStream;
import java.util.Properties;
import javax.activation.CommandMap;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.activation.MailcapCommandMap;
import javax.mail.Message;
import javax.mail.Multipart;
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 android.util.Log;
public class MailSender {
private static final String TAG = MailSender.class.getName();
public MailSender() {
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");
CommandMap.setDefaultCommandMap(mc);
}
/**
*
* @param from
* @param to
* @param subject
* @param message
* @param file
* @throws Exception
*/
public boolean sendMail(String from, String[] to, String subject, String message) throws Exception {
return sendMail(from, to, subject, message, new String[0]);
}
/**
*
* @param from
* @param to
* @param subject
* @param message
* @param file
* @throws Exception
*/
public boolean sendMail(String from, String[] to, String subject, String message, String file) throws Exception {
return sendMail(from, to, subject, message, new String[] { file });
}
/**
*
* @param from
* @param to
* @param subject
* @param message
* @param files
* @return
* @throws Exception
*/
public boolean sendMail(String from, String[] to, String subject, String message, String[] files) throws Exception {
Properties properties = new Properties();
properties.load(new FileInputStream("mail.properties"));
String user = properties.getProperty("mail.smtp.user");
String pass = properties.getProperty("mail.smtp.password");
Session session = Session.getInstance(properties, new MailAuthenticator(user, pass));
session.setDebug(true);
Message msg = new MimeMessage(session);
try {
// Setando o destinatário
msg.setRecipient(Message.RecipientType.TO, new InternetAddress(to[0]));
for (int count = 1; count < to.length; count++) {
msg.addRecipient(Message.RecipientType.TO, new InternetAddress(to[count]));
}
// Setando a origem do email
if (from == null || from.isEmpty()) {
from = properties.getProperty("mail.smtp.from");
}
//
msg.setFrom(new InternetAddress(from));
// Setando o assunto
msg.setSubject(subject);
if (files == null || files.length == 0) {
/* Setando o content/type do email */
msg.setContent(message, "text/html");
} else {
// Cria a primeira parte da mensagem
MimeBodyPart mineBodyPart = new MimeBodyPart();
mineBodyPart.setContent(message, "text/html");
// Cria a Multipart
Multipart multiPart = new MimeMultipart();
multiPart.addBodyPart(mineBodyPart);
for (String file : files) {
// Cria partes dos arquivos em anexo
MimeBodyPart mineBodyPartFiles = new MimeBodyPart();
// Anexa o arquivo na mensagem
FileDataSource fileDataSource = new FileDataSource(file);
mineBodyPartFiles.setDataHandler(new DataHandler(fileDataSource));
mineBodyPartFiles.setFileName(fileDataSource.getName());
multiPart.addBodyPart(mineBodyPartFiles);
}
// adiciona a Multipart na mensagem
msg.setContent(multiPart);
}
} catch (Exception e) {
Log.e(TAG, e.getLocalizedMessage());
throw new Exception(e.getLocalizedMessage(), e);
}
try {
Transport transport = session.getTransport();
transport.connect();
transport.sendMessage(msg, msg.getAllRecipients());
transport.close();
return true;
} catch (Exception e) {
Log.e(TAG, e.getLocalizedMessage());
}
return false;
}
}
