package com.jspservletcookbook;
import java.io.*;
import java.util.Properties;
import javax.activation.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class EmailAttachServlet extends HttpServlet {
//default value for mail server address, in case the user
//doesn't provide one
private final static String DEFAULT_SERVER = "mail.attbi.com";
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 smtpServ = request.getParameter("smtp");
if (smtpServ == null || smtpServ.equals(""))
smtpServ = DEFAULT_SERVER;
String from = request.getParameter("from");
String to = request.getParameter("to");
String subject = request.getParameter("subject");
try {
sendMessage(smtpServ, to, from, subject);
} catch (Exception e) {
throw new ServletException(e.getMessage());
}
out.println("</body></html>");
out.close();
}//doPost
public void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
java.io.IOException {
doPost(request,response);
}//doGet
private void sendMessage(String smtpServ, String to, String from,
String subject) throws Exception {
Multipart multipart = null;
BodyPart bpart1 = null;
BodyPart bpart2 = null;
Properties properties = System.getProperties();
//populate the 'Properties' object with the mail
//server address, so that the default 'Session'
//instance can use it.
properties.put("mail.smtp.host", smtpServ);
Session session = Session.getDefaultInstance(properties);
Message mailMsg = new MimeMessage(session);//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));
} else {
throw new MessagingException(
"The mail message requires a valid 'From' address.");
}
if (subject != null)
mailMsg.setSubject(subject);
//This email message's content is a 'Multipart' type
//The MIME type for the message's content is 'multipart/mixed'
multipart = new MimeMultipart();
//The text part of this multipart email message
bpart1 = new MimeBodyPart();
String textPart =
"Hello, just thought you'd be interested in this Word file.";
// create the DataHandler object for the text part
DataHandler data = new DataHandler(textPart, "text/plain");
//set the text BodyPart's DataHandler
bpart1.setDataHandler(data);
//add the text BodyPart to the Multipart container
multipart.addBodyPart( bpart1);
//create the BodyPart that represents the attached Word file
bpart2 = new MimeBodyPart();
//create the DataHandler that points to a File
FileDataSource fds = new FileDataSource( new File(
"h:/book/chapters/chap1/chap1.doc") );
//Make sure that the attached file is handled as
//the appropriate MIME type: application/msword here
MimetypesFileTypeMap ftm = new MimetypesFileTypeMap();
//the syntax here is the MIME type followed by
//space separated extensions
ftm.addMimeTypes("application/msword doc DOC" );
fds.setFileTypeMap(ftm);
//The DataHandler is instantiated with the
//FileDataSource we just created
DataHandler fileData = new DataHandler( fds );
//the BodyPart will contain the word processing file
bpart2.setDataHandler(fileData);
//add the second BodyPart, the one containing the attachment, to
//the Multipart object
multipart.addBodyPart( bpart2 );
//finally, set the content of the MimeMessage to the
//Multipart object
mailMsg.setContent( multipart );
// 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;
}//try
}//sendMessage
}//EmailAttachServlet
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