JavaでGmail送信

サンプル

				
package mvnTest;

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

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

import com.sun.mail.smtp.SMTPTransport;

public class MailTest {
	public static void main(String[] argv) {
		mailSend("タイトル", "本文", "送信先メールアドレス", "送信元メールアドレス", "パスワード");
	}

	public static void mailSend(String title, String text, String toAddress, 
		String fromAddress, String password) {

		try {
			// プロパティの設定
			Properties props = System.getProperties();
			props.put("mail.smtp.auth", "true");
			props.put("mail.smtp.starttls.enable", "true");
			props.put("mail.smtp.host", "smtp.gmail.com");
			props.put("mail.smtp.port", "587");

			Session session = Session.getInstance(props);
			Message msg = new MimeMessage(session);

			// 送信元メールアドレスのセット
			msg.setFrom(new InternetAddress(fromAddress));

			// 送信先メールアドレスのセット
			msg.setRecipients(Message.RecipientType.TO, 
				InternetAddress.parse(toAddress, false));

			// メールタイトル
			msg.setSubject(title);

			// メール本文
			msg.setText(text);

			// 送信日
			msg.setSentDate(new Date());

			// メール送信
			SMTPTransport t = (SMTPTransport) session.getTransport("smtp");
			try {
				t.connect("smtp.gmail.com", fromAddress, password);
				t.sendMessage(msg, msg.getAllRecipients());
			} finally {
				t.close();
			}

		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

			

				
javax.mail.AuthenticationFailedException: 534-5.7.14 <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKgnsbsR
534-5.7.14 w7FsVryxIA7b8wLa7j09PT7UgYnLDEqXvTT0QNJPFrXo9pH-5Y_X-6bohOGpx1e8H1hzVu
534-5.7.14 QT_8odExxaw48Xb2VbWQIPImlGLVz3TI3ppJ8yfHCuWA68aKYQ7k5Z54ACpVnBnMr6TrbC
534-5.7.14 a4QYXQDRAELd121lJNZILFCX6TAgc0ovbYFuZJPnc1abGx9Xwey7iv_sF9ea-PV1l0PFfi
534-5.7.14 hMayGqC96Q_MkVhXfzeK0w9bybXTc> Please log in via your web browser and
534-5.7.14 then try again.
534-5.7.14  Learn more at
534 5.7.14  https://support.google.com/mail/answer/78754 m87sm6069511pfi.122 - gsmtp

	at com.sun.mail.smtp.SMTPTransport$Authenticator.authenticate(SMTPTransport.java:826)
	at com.sun.mail.smtp.SMTPTransport.authenticate(SMTPTransport.java:761)
	at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:685)
	at javax.mail.Service.connect(Service.java:295)
	at javax.mail.Service.connect(Service.java:176)
	at mvnTest.MailTest.mailSend(MailTest.java:48)
	at mvnTest.MailTest.main(MailTest.java:15)