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LWP » Foros » Java » Java mail con fichero adjunto

Java - Java mail con fichero adjunto

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Java mail con fichero adjunto

Publicado por Ángel (1 intervención) el 17/04/2017 18:24:00
Buenas tardes,

Estoy intentado enviar un correo con un fichero adjunto con java pero no consigo hacer funcionar el código, siempre obtengo un mensaje de java.lang.NullPointerException

¿Alguien tiene alguna idea de como puedo arreglarlo o tiene alguna clase que ya sepa que funciona?

Muchas gracias y saludos

Errores:

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at javax.mail.internet.MimeUtility.getEncoding(MimeUtility.java:226)
at javax.mail.internet.MimeUtility.getEncoding(MimeUtility.java:299)
at javax.mail.internet.MimeBodyPart.updateHeaders(MimeBodyPart.java:1375)
at javax.mail.internet.MimeBodyPart.updateHeaders(MimeBodyPart.java:1021)
at javax.mail.internet.MimeMultipart.updateHeaders(MimeMultipart.java:419)
at javax.mail.internet.MimeBodyPart.updateHeaders(MimeBodyPart.java:1354)
at javax.mail.internet.MimeMessage.updateHeaders(MimeMessage.java:2107)
at javax.mail.internet.MimeMessage.saveChanges(MimeMessage.java:2075)
at javax.mail.Transport.send(Transport.java:123)
at Fuentes.Mail_attach_2.<init>(Mail_attach_2.java:79)
at Fuentes.Pantalla_principal$12.actionPerformed(Pantalla_principal.java:724)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$300(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

Código:

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package Fuentes;
 
import java.util.Properties;
import javax.activation.*;
import javax.mail.*;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.InternetAddress;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Transport;
import javax.swing.JOptionPane;
 
 
 
public class Mail_attach_2 {
 
 
	 public Mail_attach_2(){
 
	  final String username = "xxxxxx@gmail.com";
	  final String password = "xxxxxx";
 
	    Properties props = new Properties();
	    props.put("mail.smtp.auth", true);
	    props.put("mail.smtp.starttls.enable", true);
	    props.put("mail.smtp.host", "smtp.gmail.com");
	    props.put("mail.smtp.port","465");
        props.put("mail.transport.protocol", "smtp");
        props.put("mail.smtp.socketFactory.class",
                "javax.net.ssl.SSLSocketFactory");
 
        props.setProperty("mail.smtp.user","xxxxxxx@gmail.com");
 
        props.setProperty("mail.smtp.auth","true");
        props.put("mail.smtp.timeout", "10000");
 
 
	    Session session = Session.getInstance(props,
	            new javax.mail.Authenticator() {
	                protected PasswordAuthentication getPasswordAuthentication() {
	                    return new PasswordAuthentication(username, password);
	                }
	            });
 
	    try {
 
	        Message message = new MimeMessage(session);
	        message.setFrom(new InternetAddress("xxxxxx@gmail.com"));
	        message.setRecipients(Message.RecipientType.TO,
	                InternetAddress.parse("xxxxxx@gmail.com"));
	        message.setSubject("Testing Subject");
	        message.setText("PFA");
 
	        MimeBodyPart messageBodyPart = new MimeBodyPart();
 
	        Multipart multipart = new MimeMultipart();
 
	        messageBodyPart = new MimeBodyPart();
 
	        String file = "C:/Documentos/";
	        String fileName = "file.txt";
 
	        DataSource source = new FileDataSource(file);
	        messageBodyPart.setDataHandler(new DataHandler(source));
	        messageBodyPart.setFileName(fileName);
	        multipart.addBodyPart(messageBodyPart);
 
 
	        message.setContent(multipart);
 
	        System.out.println("Sending");
 
	        Transport.send(message);
 
	        System.out.println("Done");
 
	    } catch (MessagingException e) {
	        e.printStackTrace();
	    }
	  }
}
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