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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;import java.util.Properties;class MailSend {    private static final String EMAIL_OWNER_ADDR_HOST = "smtp.qq.com"; //smtp.163.com  smtp.aliyun.com  smtp.qq.com    private static final String EMAIL_OWNER_ADDR = "xxxxx@qq.com";    private static final String EMAIL_OWNER_ADDR_PASS = "xxxxxxx";    public static void sendMail(String title, String email, String content) throws MessagingException {        Properties prop = new Properties();        prop.put("mail.host", EMAIL_OWNER_ADDR_HOST);        prop.put("mail.transport.protocol", "smtp");        prop.put("mail.smtp.auth", "true");        prop.setProperty("mail.smtp.ssl.enable", "true");        Session session = Session.getInstance(prop);        Transport ts = session.getTransport();        ts.connect(EMAIL_OWNER_ADDR, EMAIL_OWNER_ADDR_PASS);        MimeMessage mm = new MimeMessage(session);        mm.setFrom(new InternetAddress(EMAIL_OWNER_ADDR));        mm.setRecipient(Message.RecipientType.TO, new InternetAddress(email));        mm.setSubject(title);        mm.setContent(content, "text/html;charset=utf-8");        ts.sendMessage(mm, mm.getAllRecipients());    }}