I don't know what mistake i done on my code segment to send e-mail
using Google App Engine. I refered the documentation of Google App
Engine from http://code.google.com/appengine/docs/python/mail/sendingmail.html.
I attach my code segment of client and server.
Clientside code.
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.http.client.Request;
import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.http.client.RequestException;
import com.google.gwt.http.client.Response;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.RootPanel;
public class MainEntry implements EntryPoint {
RequestBuilder rb = null;
@Override
public void onModuleLoad() {
// Window.Location.replace("/hello");
rb = new RequestBuilder(RequestBuilder.POST, "mailserver");
rb.setCallback(new RequestCallback() {
@Override
public void onResponseReceived(Request request,
Response response)
{
// TODO Auto-generated method stub
Window.alert("Mail send");
}
@Override
public void onError(Request request, Throwable
exception) {
// TODO Auto-generated method stub
}
});
Button button = new Button("Mail service");
button.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
// TODO Auto-generated method stub
try {
rb.send();
} catch (RequestException e) {
}
}
});
RootPanel.get().add(button);
}
Serverside code.
import java.io.UnsupportedEncodingException;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
public class MailServlet extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = 1L;
public void init(ServletConfig config) throws ServletException {
super.init(config);
System.out.println("Mail Servlet is called");
Properties properties = new Properties();
Session session = Session.getDefaultInstance(properties, null);
String message = "Welcome to WWW.DataStoreGwt.com";
try
{
Message msg = new MimeMessage(session);
msg.setFrom(new InternetAddress("gan.tan...@gmail.com",
"Rajaganapathi velayutham"));
msg.addRecipient(Message.RecipientType.TO, new
InternetAddress("j.gane...@datastoregwt.com", "J.Ganesan"));
msg.setSubject("Invitation from www.tanya.com");
msg.setText(message);
Transport.send(msg);
}
catch (AddressException e1)
{
}
catch (MessagingException e2)
{
}
catch (UnsupportedEncodingException e)
{
e.printStackTrace();
}
}
}
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