java mail with WLS8.1

[ved gunjan]

hi! everybody
Im developing a mailing system and im using WLS8.1 as the application server.
I've set the following session propeties using admin console when creating a mailsession.
The parameters are:

mail.host=localhost
mail.transort.protocol=smtp
mail.store.protocol=imap
mail.imap.host=localhost
mail.user=postmaster
mail.debug=true

Im retriving the mail using this code
public class MailRetriver
{
...
...
string host="";
string username="";
string password=""
...
...
//JNDI look up for the session

Store store = session.getStore();
store.connect(host, username, password);
Folder folder = store.getDefaultFolder();
folder = folder.getFolder("INBOX");
...
...
}

im getting the the following error

DEBUG: getProvider() returning javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc]
javax.mail.AuthenticationFailedException
at javax.mail.Service.connect(Service.java:265)
at javax.mail.Service.connect(Service.java:135)
at javax.mail.Service.connect(Service.java:87)
at com.MailReciever.getAllMessages(MailReciever.java:53)
at jsp_servlet.__inbox._jspService(__inbox.java:155)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:33)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:996)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:419)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:463)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:315)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6452)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3661)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2630)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:219)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:178)
<Nov 27, 2004 9:11:23 PM GMT+05:30> <Error> <HTTP> <BEA-101020> <[ServletContext(id=33486858,name=lms,context-path=/lms)
] Servlet failed with Exception
java.lang.NullPointerException
at jsp_servlet.__inbox._jspService(__inbox.java:158)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:33)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:996)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:419)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:463)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:315)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6452)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3661)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2630)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:219)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:178)
>


My question is what values should i provide in the connect()method.
ie the values for host,username,password considering the session properties that i've provided above.
The username and the password for the server,which is providing me the mail service is

username = admin
password = password

Pleez anyone look in to it and proviede me with the help.
Thanking in advance.
With Regards
Ved gunjan

[Marcos Maia]

Hi,

I have developed about a year ago a simple bunch of classes that I have already used under tomcat and weblogic, It send's siple text messages, you may change as you need to fit your requirements. Note that messages are in portuguese you may want to change that, for sure.

The exception class:

  
package br.com.matecnologia.util.email;
 
/**
 * <p>Title: ma consultoria e inform�tica</p>
 * <p>Description: Site da empresa</p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: ma consultoria e inform�tica</p>
 * @author Marcos Maia
 * @version 1.0
 */
 
public class EmailException extends Exception
{
  public EmailException()
  {
    super("Erro ao enviar mensagem de email");
  }
  public EmailException(String mensagem)
  {
    super(mensagem);
  }
 
}

A simple Autenticato class:

 
package br.com.matecnologia.util.email;
 
import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
 
/**
 * <p>Title: ma consultoria e inform�tica</p>
 * <p>Description: Site da empresa</p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: ma consultoria e inform�tica</p>
 * @author Marcos Maia
 * @version 1.0
 */
 
public class Autenticador extends Authenticator
{
  private String usuario;
  private String senha;
  public Autenticador(String usuario, String senha)
  {
    setUsuario(usuario);
    setSenha(senha);
  }
  public PasswordAuthentication getPasswordAuthentication()
  {
    return new PasswordAuthentication(usuario, senha);
  }
  public String getUsuario()
  {
    return usuario;
  }
  public void setUsuario(String usuario)
  {
    this.usuario = usuario;
  }
  public String getSenha()
  {
    return senha;
  }
  public void setSenha(String senha)
  {
    this.senha = senha;
  }
 
}
 

Finally the class that does all the stuff:

  
 
package br.com.matecnologia.util.email;
 
import java.util.Properties;
import javax.mail.Session;
import javax.mail.internet.MimeMessage;
import javax.mail.Address;
import javax.mail.internet.InternetAddress;
import javax.mail.MessagingException;
import javax.mail.Transport;
import javax.mail.Authenticator;
 
/**
 * <p>Title: ma consultoria e inform�tica</p>
 * <p>Description: Site da empresa</p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: ma consultoria e inform�tica</p>
 * @author Marcos Maia
 * @version 1.0
 */
 
public class Email
{
  private Properties propiedadesEmail;
  private Session sessaoEmail;
  private MimeMessage mensagemEmail;
  private Address enderecoDestinatario;
  private Address enderecoRemetente;
  private Transport transporteEmail;
  private Authenticator autenticador;
  public Email()
  {
 
  }
  public void enviaMensagemTexto(String assunto, String mensagem, String emailRemetente, String emailDestinatario,
                                 String usuario, String senha, String enderecoServidorEmail) throws
      EmailException
  {
    propiedadesEmail = new Properties();
    propiedadesEmail.put("mail.smtp.host", enderecoServidorEmail);
    propiedadesEmail.put("mail.smtp.auth", "true");
    autenticador = new Autenticador(usuario, senha);
    sessaoEmail = Session.getInstance(propiedadesEmail, autenticador);
    mensagemEmail = new MimeMessage(sessaoEmail);
    try
    {
      mensagemEmail.setSubject(assunto);
      mensagemEmail.setText(mensagem);
      enderecoDestinatario = new InternetAddress(emailDestinatario);
      enderecoRemetente = new InternetAddress(emailRemetente);
      mensagemEmail.setFrom(enderecoRemetente);
      transporteEmail = sessaoEmail.getTransport("smtp");
      transporteEmail.connect();
      if(! transporteEmail.isConnected())
        throw new EmailException("N�o foi poss�vel conectar no servidor de email...");
      transporteEmail.send(mensagemEmail, mensagemEmail.getFrom());
      transporteEmail.close();
    }
    catch (MessagingException ex)
    {
      ex.printStackTrace();
      throw new EmailException("Ocorreu um erro ao enviar a mensagem de email");
    }
  }
}

To use it you just have to create an instance and pass the infomation for the method, follows a sample using struts to get the input from a jsp page:

  
 
package br.com.matecnologia.web.email;
 
import org.apache.struts.action.*;
import javax.servlet.http.*;
import br.com.matecnologia.util.email.Email;
import br.com.matecnologia.util.email.*;
/**
 * <p>Title: ma consultoria e inform�tica</p>
 * <p>Description: Site da empresa</p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: ma consultoria e inform�tica</p>
 * @author Marcos Maia
 * @version 1.0
 */
 
public class EmailComercialAction extends Action
{
  public ActionForward execute(ActionMapping actionMapping, ActionForm actionForm, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse)
  {
    EmailComercialActionForm emailComercialActionForm = (EmailComercialActionForm) actionForm;
    String nomeRemetente = emailComercialActionForm.getNomeRemetente();
    String emailRemtente = emailComercialActionForm.getEmailRemetente();
    String mensagemRemetente = emailComercialActionForm.getMensagemRemetente();
    String assuntoRemetente = emailComercialActionForm.getAssuntoRemtente();
    Email email = new Email();
    try
    {
      mensagemRemetente = "Email enviado por: " + nomeRemetente +
          "\ne-mail:  " + emailRemtente + " \na mensagem: " + mensagemRemetente;
      email.enviaMensagemTexto(subjectGoesHere, messageGoesHere,
                               "from email adress goes here",
                               "to email adress goes here", user goes here,
                               "password goes here",
                               "mail server adress goes here(i.e-smtp.domain.com");
      emailComercialActionForm.reset(actionMapping, httpServletRequest);
 
      httpServletRequest.setAttribute("mensagemEnvioOK", mensagemRemetente);
 
      return actionMapping.findForward("envioOK");
    }
    catch (EmailException ex)
    {
      httpServletRequest.setAttribute("mensagemErro",
                                      "O e-mail de: " + nomeRemetente +
                                      "\ne-mail: " + emailRemtente +
                                      "\nassunto: " + assuntoRemetente +
                                      "\ncom a mensagem: " + mensagemRemetente);
 
      return actionMapping.findForward("envioErro");
    }
  }
}
 

Notice that I don't do password encription here, it's passed as simple text, if you need it you'll have to implement.

regards.