[java] メール送信

Mail.java

import java.io.UnsupportedEncodingException;
import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class Mail {

	private static final String ENCODE = "ISO-2022-JP";

	private Session session;

	private String smtp;
	private String from;
	private String fromAlias;

	private Mail() {

	}

	private Mail(String smtp, String from, String fromAlias) {
		this.smtp = smtp;
		this.from = from;
		this.fromAlias = fromAlias;

		setSmtp(smtp);
	}

	public static Mail create(String smtp, String from, String fromAlias) {
		return new Mail(smtp, from, fromAlias);
	}

	public void send(String to, String subject, String text) {
		MimeMessage objMsg = new MimeMessage(session);
		try {
			objMsg.setRecipients(Message.RecipientType.TO, to);
			final InternetAddress objFrm = new InternetAddress(from, fromAlias);
			objMsg.setFrom(objFrm);
			objMsg.setSubject(subject, ENCODE);
			objMsg.setText(text, ENCODE);
			Transport.send(objMsg);
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		} catch (MessagingException e) {
			e.printStackTrace();
		}
	}

	public String getFrom() {
		return from;
	}

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

	public String getFromAlias() {
		return fromAlias;
	}

	public void setFromAlias(String fromAlias) {
		this.fromAlias = fromAlias;
	}

	public String getSmtp() {
		return smtp;
	}

	public void setSmtp(String smtp) {
		Properties objPrp = new Properties();
		objPrp.put("mail.smtp.host", smtp);
		session = Session.getDefaultInstance(objPrp, null);
	}

	public static void main(String[] args) {
		Mail mail1 = Mail.create("smtp.***.jp", "info@***.jp", "インフォメーション");
		mail1.send("honjo@***.com", "あいうえお", "かきくけこ");
		mail1.send("hiroaki@***.jp", "abc", "def");

		Mail mail2 = Mail.create("smtp2.***.com", "info@***.com", "カスタマー");
		mail2.send("honjo2@***.com", "さしすせそ", "たちつてと");
		mail2.send("hiroaki2@***.jp", "ghi", "jkl");
	}
}

pom.xml

<dependency>
	<groupId>javax.activation</groupId>
	<artifactId>activation</artifactId>
	<version>1.1.1</version>
	<scope>compile</scope>
</dependency>
<dependency>
	<groupId>javax.mail</groupId>
	<artifactId>mail</artifactId>
	<version>1.4.1</version>
	<scope>compile</scope>
</dependency>