SendMail.java

package com.activequant.utils.mail;

import java.util.Date;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
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 SendMail {

	private String host, user, password, from;
	private int port;

	public SendMail(String host, int port, String username, String password, String from) {
		this.host = host;
		this.port = port;
		this.user = username;
		this.password = password;
		this.from = from;
	}

	public String generateHtmlTable(String[] header, Object[][] cells) {
		StringBuilder sb = new StringBuilder();
		sb.append("<table border='1'>");
		sb.append("<tr>");
		for (String s : header)
			sb.append("<td><b>").append(s).append("</b></td>");
		sb.append("</tr>");
		for (int i = 0; i < cells.length; i++) {
			boolean append = false;
			String line = ("<tr>");
			for (int j = 0; j < cells[i].length; j++) {
				if (cells[i][j] != null)
					append = true;
				line += ("<td>") + (cells[i][j]) + ("</td>");
			}

			line += ("</tr>");
			if (append)
				sb.append(line);
		}
		sb.append("</table>");
		return sb.toString();
	}

	public void sendMail(String[] recipients, String subject, String htmlBody) throws Exception {
		Properties props = new Properties();
		props.setProperty("mail.transport.protocol", "smtp");
		props.setProperty("mail.host", host);
		props.setProperty("mail.port", "" + port);
		props.setProperty("mail.user", user);
		props.setProperty("mail.password", password);

		Session mailSession = Session.getDefaultInstance(props, null);
		mailSession.setDebug(true);
		Transport transport = mailSession.getTransport();

		MimeMessage message = new MimeMessage(mailSession);
		message.setSubject(subject);
		message.setFrom(new InternetAddress(from));
		message.setSentDate(new Date());
		for (String recipient : recipients) {
			message.addRecipient(Message.RecipientType.TO, new InternetAddress(recipient));
		}

		//
		// This HTML mail have to 2 part, the BODY and the embedded image
		//
		MimeMultipart multipart = new MimeMultipart("related");

		// first part (the html)
		BodyPart messageBodyPart = new MimeBodyPart();
		// String htmlText = "<H1>Hello</H1><img src=\"cid:image\">";
		messageBodyPart.setContent(htmlBody, "text/html");

		// add it
		multipart.addBodyPart(messageBodyPart);

		// second part (the image)
		/*
		 * messageBodyPart = new MimeBodyPart(); DataSource fds = new
		 * FileDataSource("C:\\images\\jht.gif");
		 * messageBodyPart.setDataHandler(new DataHandler(fds));
		 * messageBodyPart.setHeader("Content-ID", "<image>");
		 * 
		 * // add it multipart.addBodyPart(messageBodyPart);
		 */
		// put everything together
		message.setContent(multipart);

		transport.connect();
		transport.sendMessage(message, message.getRecipients(Message.RecipientType.TO));
		transport.close();
	}

	public void sendMail(String[] recipients, String subject, String htmlBody, String[] attachmentFileNames)
			throws Exception {
		Properties props = new Properties();
		props.setProperty("mail.transport.protocol", "smtp");
		props.setProperty("mail.host", host);
		props.setProperty("mail.port", "" + port);
		props.setProperty("mail.user", user);
		props.setProperty("mail.password", password);

		Session mailSession = Session.getDefaultInstance(props, null);
		mailSession.setDebug(true);
		Transport transport = mailSession.getTransport();

		MimeMessage message = new MimeMessage(mailSession);
		message.setSubject(subject);
		message.setFrom(new InternetAddress(from));
		message.setSentDate(new Date());
		for (String recipient : recipients) {
			message.addRecipient(Message.RecipientType.TO, new InternetAddress(recipient));
		}

		//
		// This HTML mail have to 2 part, the BODY and the embedded image
		//
		MimeMultipart multipart = new MimeMultipart("related");

		// first part (the html)
		BodyPart messageBodyPart = new MimeBodyPart();
		messageBodyPart.setContent(htmlBody, "text/html");

		// add it
		multipart.addBodyPart(messageBodyPart);

		for (int i = 0; i < attachmentFileNames.length; i++) {
			messageBodyPart = new MimeBodyPart();
			DataSource fds = new FileDataSource(attachmentFileNames[i]);
			messageBodyPart.setDataHandler(new DataHandler(fds));
			messageBodyPart.setHeader("Content-ID", "ATTACHMENT" + i);
			multipart.addBodyPart(messageBodyPart);
		}

		message.setContent(multipart);

		transport.connect();
		transport.sendMessage(message, message.getRecipients(Message.RecipientType.TO));
		transport.close();
	}

	public String getHost() {
		return host;
	}

	public void setHost(String host) {
		this.host = host;
	}

	public String getUser() {
		return user;
	}

	public void setUser(String user) {
		this.user = user;
	}

	public String getPassword() {
		return password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

	public int getPort() {
		return port;
	}

	public void setPort(int port) {
		this.port = port;
	}

	public String getFrom() {
		return from;
	}

	public void setFrom(String from) {
		this.from = from;
	}

}