Mail

package kushagra;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.util.*;
import javax.mail.*;
import javax.mail.event.*;
import javax.mail.internet.*;

/**
 *
 * @author Kushagra
 */
public class Mail extends HttpServlet {
   String SMTP_HOST_NAME = "smtp.gmail.com";
   String SMTP_AUTH_USER = "kushagramittal1990";
   String SMTP_AUTH_PWD = "5855900";
   String emailMsgTxt ;
   String emailSubjectTxt;
   String emailFromAddress ;
   String emailTo;
    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            emailMsgTxt=request.getParameter("emailMsgTxt");
            emailSubjectTxt=request.getParameter("emailSubjectTxt");
            emailFromAddress=request.getParameter("emailFromAddress");
            emailTo=request.getParameter("emailList");
            System.out.println(emailMsgTxt);
            Mail m = new Mail();
            m.sendMail();
            /* TODO output your page here
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet Mail</title>");  
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet Mail at " + request.getContextPath () + "</h1>");
            out.println("</body>");
            out.println("</html>");
            */
        } finally { 
            out.close();
        }
    }
    public void sendMail(){

try{
                System.out.println("hello");
		Mail smtpMailSender = new Mail();
		smtpMailSender.postMail(emailTo, emailSubjectTxt, emailMsgTxt,
				emailFromAddress);
		System.out.println("Sucessfully Sent mail to All Users");
            }
            catch(Exception e)
            {
                e.getMessage();
            }
            }

public void postMail(String recipients, String subject, String message,
			String from) throws MessagingException {
		boolean debug = false;
		java.security.Security
				.addProvider(new com.sun.net.ssl.internal.ssl.Provider());

//Set the host smtp address
		Properties props = new Properties();
		props.put("mail.transport.protocol", "smtp");
		props.put("mail.smtp.starttls.enable","true");
		props.put("mail.smtp.host", SMTP_HOST_NAME);
		props.put("mail.smtp.auth", "true");

System.out.println("hello1");
		//Authenticator auth = new SMTPAuthenticator();
Authenticator auth = new SMTPAuthenticator();
//auth.getPasswordAuthentication();
System.out.println("Hello3");
		Session session = Session.getDefaultInstance(props, auth);

session.setDebug(debug);
System.out.println("Hello6");
		// create a message
		Message msg = new MimeMessage(session);
System.out.println("Hello7");
		// set the from and to address
		//InternetAddress addressFrom = new InternetAddressFrom();
InternetAddress addressFrom = new InternetAddress(from);
System.out.println("Hello9");
		msg.setFrom(addressFrom);
        System.out.println("Hello10");
        //InternetAddress addressTo=new InternetAddress(recipients);
		//InternetAddress[] addressTo = new InternetAddress[recipients.length];
		//for (int i = 0; i < recipients.length; i++) {
		//	addressTo[i] = new InternetAddress(recipients[i]);
		//}
		//msg.setRecipients(Message.RecipientType.TO, addressTo);
        InternetAddress addressTo= new InternetAddress(recipients);
        System.out.println("Hello8");
        msg.setRecipient(Message.RecipientType.TO, addressTo);
System.out.println("Hello4");
		// Setting the Subject and Content Type
		msg.setSubject(subject);
		msg.setContent(message, "text/plain");
		Transport.send(msg);
        System.out.println("Hello5");
	}
private class SMTPAuthenticator extends javax.mail.Authenticator {

@Override
		public PasswordAuthentication getPasswordAuthentication() {
            System.out.println("hello2");
			String username = SMTP_AUTH_USER;
			String password = SMTP_AUTH_PWD;
			return new PasswordAuthentication(username, password);
		}
}

wats wrong with his code!!!

Looks fine to me. (Except it wasn't posted with the code tags, but I've fixed that for you.) Why do you ask?

Paul Clapham wrote:Looks fine to me. (Except it wasn't posted with the code tags, but I've fixed that for you.) Why do you ask?

Lines 102 and 112 raises a exception but null messege is printed in catch BY getMessage function...

Have you verified that line 41 actually returns an email address?

Also, please post the full exception stack trace, that will make the error clearer (without that we will just be guessing).

Peter Johnson wrote:Have you verified that line 41 actually returns an email address?

Also, please post the full exception stack trace, that will make the error clearer (without that we will just be guessing).

Ya line 41 returns an Emailaddress.

[Ljava.lang.StackTraceElement;@10d9151

[Ljava.lang.StackTraceElement;@1bf68a9

[Ljava.lang.StackTraceElement;@1e16483

at line 102,112 and 119 resp...

StackTraceElement? Doesn't sound like an email object to me.

And where is the except stack trace???