Email JNDI Filter

 
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
Related examples in the same category

1.	Servlet JNDI and Bean
2.	JNDI Filter
3.	Web JNDI
4.	Use JNDI to get database connection or data source
Email JNDI Filter : JNDI « Servlets « Java

Related examples in the same category
