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import java.io.IOException;
import java.io.PrintWriter;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.mail.*;
import javax.mail.internet.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class EmailJndiServlet extends HttpServlet {
private Session mailSession;
public void init() throws ServletException {
Context env = null;
try{
env = (Context) new InitialContext();
mailSession = (Session) env.lookup("MyEmail");
if (mailSession == null)
throw new ServletException(
"MyEmail is an unknown JNDI object");
//close the InitialContext
env.close();
} catch (NamingException ne) {
try{ env.close();} catch (NamingException nex) { }
throw new ServletException(ne);
}
}
public void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
java.io.IOException {
response.setContentType("text/html");
java.io.PrintWriter out = response.getWriter();
out.println(
"<html><head><title>Email message sender</title></head><body>");
String to = request.getParameter("to");
String from = request.getParameter("from");
String subject = request.getParameter("subject");
String emailContent = request.getParameter("emailContent");
try{
sendMessage(to,from,subject,emailContent);
} catch(Exception exc){
throw new ServletException(exc.getMessage());
}
out.println(
"<h2>The message was sent successfully</h2></body></html>");
out.println("</body></html>");
out.close();
} //doPost
public void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
java.io.IOException {
doPost(request,response);
}
private void sendMessage(String to, String from,String subject,
String bodyContent) throws Exception {
Message mailMsg = null;
synchronized(mailSession){
mailMsg = new MimeMessage(mailSession);//a new email message
}
InternetAddress[] addresses = null;
try {
if (to != null) {
//throws 'AddressException' if the 'to' email address
//violates RFC822 syntax
addresses = InternetAddress.parse(to, false);
mailMsg.setRecipients(Message.RecipientType.TO, addresses);
} else {
throw new MessagingException(
"The mail message requires a 'To' address.");
}
if (from != null)
mailMsg.setFrom(new InternetAddress(from));
if (subject != null)
mailMsg.setSubject(subject);
if (bodyContent != null)
mailMsg.setText(bodyContent);
//Finally, send the mail message; throws a 'SendFailedException'
//if any of the message's recipients have an invalid adress
Transport.send(mailMsg);
} catch (Exception exc) {
throw exc;
}
}//sendMessage
}//EmailJndiServlet
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