使用JavaMail API同时发送两个不同的电子邮件

Question

我使用JavaMail API在data insertion in database

时通知管理员

这很好用。管理员收到数据输入通知。

但是，我还需要通过同时向他发送确认通知客户，但它不起作用。客户未收到任何确认。我还想在主题中粘贴确认号码。它可能与港口冲突有关吗？

EmailAdmin.sendEmail(to, subject, body);
EmailCustomer.sendEmail(EM, subjectsub, bodybod, CN);

EmailAdmin.java

    package session;

import java.util.Date;
import java.util.Properties;
import javax.ejb.LocalBean;
import javax.ejb.Stateless;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

@Stateless
@LocalBean
public class EmailAdmin {

    private final int port = 465;
    private final String host = "smtp.server.com";
    private final String from = "admin@domain.com";
    private final boolean auth = true;
    private final String username = "admin@domain.com";
    private final String password = "password";
    private final Protocol protocol = Protocol.SMTPS;
    private final boolean debug = true;

    public void sendEmail(String to, String subject, String body) {

        Properties props = new Properties();
        props.put("mail.smtp.host", host);
        props.put("mail.smtp.port", port);

        switch (protocol) {
            case SMTPS:
                props.put("mail.smtp.ssl.enable", true);
                break;
            case TLS:
                props.put("mail.smtp.starttls.enable", true);
                break;
        }

        Authenticator authenticator = null;
        if (auth) {
            props.put("mail.smtp.auth", true);
            authenticator = new Authenticator() {
                private final PasswordAuthentication pa = new PasswordAuthentication(username, password);
                @Override
                public PasswordAuthentication getPasswordAuthentication() {
                    return pa;
                }
            };
        }

        Session session = Session.getInstance(props, authenticator);
        session.setDebug(debug);

        MimeMessage message = new MimeMessage(session);
        try {
            message.setFrom(new InternetAddress(from));
            InternetAddress[] address = {new InternetAddress(to)};
            message.setRecipients(Message.RecipientType.TO, address);
            message.setSubject(subject);
            message.setSentDate(new Date());
            message.setText(body);

            Transport.send(message);
        } catch (MessagingException ex) {
        }
    }
}

EmailCustomer.java

    package session;

import java.util.Date;
import java.util.Properties;
import javax.ejb.LocalBean;
import javax.ejb.Stateless;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

@Stateless
@LocalBean
public class EmailCustomer {

    private final int port = 465;
    private final String host = "smtp.server.com";
    private final String from = "admin@domain.com";
    private final boolean auth = true;
    private final String username = "admin@domain.com";
    private final String password = "password";
    private final Protocol protocol = Protocol.SMTPS;
    private final boolean debug = true;

    public void sendEmail(String EM, String subjectsub, String bodybod, String CN) {

        Properties props = new Properties();
        props.put("mail.smtp.host", host);
        props.put("mail.smtp.port", port);

        switch (protocol) {
            case SMTPS:
                props.put("mail.smtp.ssl.enable", true);
                break;
            case TLS:
                props.put("mail.smtp.starttls.enable", true);
                break;
        }

        Authenticator authenticator = null;
        if (auth) {
            props.put("mail.smtp.auth", true);
            authenticator = new Authenticator() {
                private final PasswordAuthentication pa = new PasswordAuthentication(username, password);
                @Override
                public PasswordAuthentication getPasswordAuthentication() {
                    return pa;
                }
            };
        }

        Session session = Session.getInstance(props, authenticator);
        session.setDebug(debug);

        MimeMessage message = new MimeMessage(session);
        try {
            message.setFrom(new InternetAddress(from));
            InternetAddress[] address = {new InternetAddress(EM)};
            message.setRecipients(Message.RecipientType.TO, address);
            message.setSubject(subject, CN);
            message.setSentDate(new Date());
            message.setText(body);

            Transport.send(message);
        } catch (MessagingException ex) {
        }
    }
}