How to implement the message function in the servlet?

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MailService.java// The source code is as follows: (debugging in www.mycgiserver.com)

Package javaduke.servlet;

Import javax.servlet. *;

Import javax.servlet.http. *;

Import java.io. *;

Import java.util. *;

Import javax.mail. *;

Import javax.mail.internet. *;

Public class mailservice extends httpservlet {

INT INDEX = 0;

String Err = NULL;

// Initialize Global Variables

Public void init (servletconfig config) throws servletexception {

Super.init (config);

}

// service the request

Public void service (httpservletRequest request, httpservletResponse response) throws servletexception, ioException {

String soilto = null;

String messageText = "/ n or below is form";

Mailto = Request.getParameter ("email");

ENUMERATION Keys;

String Key, Value;

Keys = Request.getParameterNames ();

While (keys.hasmoreElements ()) {

Key = (string) keys.nextelement ();

Value = Request.getParameter (key);

MessageText = "/ N" Key ":" value;

}

MessageText = "/ n forward mail handler from /nwww.dukejava.com";

Properties Pros = new property ();

Pros.Put ("mail.smtp.host", "mycgiServer.com");

Session session = session.getDefaultInstance (PROS, NULL);

Try {

Message Message = New MimeMessage (session);

Message.setsubject ("Dukejava.com Welcome");

Message.SetFrom (New InternetAddress ")))))));" Send Xinxin @ dukejava.com ")

Internet ADRESS Address = New InternetAddress (Mailto);

Message.setRecipient (Message. RecipientType.to, Address);

Message.Settext (MessageText);

TRANSPORT.SEND (Message);

} catch (messagingException exa) {int index = 1; err = exa.tostring ();

IF (INDEX == 0) {

Response.setContentType (Text / HTML ");

PrintWriter out = new printwriter (response.getoutputStream ()); out.println ("");

Out.println ("