Send email to a recipient - Java Network

Java examples for Network:EMail

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Description

Send email to a recipient

Demo Code


//package com.java2s;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;

public class Main {
    private static final String SMTP_HOST = "smtp.mail.yahoo.com";

    /**//ww w.j a v  a2  s  .c o  m
     * 
     * Send email to a recipient 
     * 
     * @param subject
     * @param from
     * @param toRecipients
     * @param contentFileName
     * @param attachmentFileLocation
     * @param attachmentFileNameInMail
     */

    @SuppressWarnings("unused")
    private static void sendMail(String subject, String from,
            String[] toRecipients, String contentFileName,
            String attachmentFileLocation, String attachmentFileNameInMail) {
        Properties props = new Properties();
        props.put("mail.smtp.host", SMTP_HOST);
        Session session = Session.getDefaultInstance(props);
        BufferedReader reader = null;
        try {
            MimeMessage emailMessage = new MimeMessage(session);
            emailMessage.setFrom(new InternetAddress(from));
            Address[] addresses = new InternetAddress[toRecipients.length];
            MimeBodyPart messageBodyPart = new MimeBodyPart();
            Multipart multipart = new MimeMultipart();

            for (int recipientCount = 0; recipientCount < toRecipients.length; recipientCount++) {
                addresses[recipientCount] = new InternetAddress(
                        toRecipients[recipientCount]);
            }
            emailMessage.setRecipients(Message.RecipientType.TO, addresses);
            emailMessage.setSubject(subject);

            if (contentFileName != null) {
                reader = new BufferedReader(new FileReader(contentFileName));
                String line;
                String message = "";

                while ((line = reader.readLine()) != null) {
                    message += line;
                }
                MimeBodyPart part = new MimeBodyPart();
                part.setContent(message, "text/html; charset=utf-8");
                multipart.addBodyPart(part);
            }

            DataSource source;
            try {
                new FileReader(attachmentFileLocation);
                source = new FileDataSource(attachmentFileLocation);
            } catch (IOException err) {
                source = null;
            }

            if (source != null) {
                messageBodyPart.setDataHandler(new DataHandler(source));
                messageBodyPart.setFileName(attachmentFileNameInMail);
                multipart.addBodyPart(messageBodyPart);
            }
            emailMessage.setContent(multipart);
            Transport.send(emailMessage);
        }

        catch (Exception err) {
            throw new RuntimeException(
                    "An error occurred while sending email", err);
        }

        finally {
            if (reader != null) {
                try {
                    reader.close();
                } catch (IOException e) {
                    // do nothing here
                }
            }
        }

    }
}

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