javaMail单发与群发(带附件)

import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import java.util.Properties;
import javax.mail.Session;
import javax.mail.internet.MimeMessage;
import javax.mail.Message;
import javax.mail.internet.MimeBodyPart;
import javax.activation.FileDataSource;
import javax.mail.Multipart;
import javax.mail.internet.MimeMultipart;
import javax.activation.DataHandler;

public class MsgsendService {
    private String host = "";
    private String user = "";
    private String password = "";

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

    public void setAccount(String user, String password) {
        this.user = user;
        this.password = password;
    }

    public void Msgmultisend(String from, String to, String subject,
                             String content) {
        Properties props = new Properties();
        props.put("mail.smtp.host", host); //指定SMTP服务器
        props.put("mail.smtp.auth", "true"); //指定是否需要SMTP验证
        try {

            Session mailSession = Session.getInstance(props, null);
            mailSession.setDebug(true); //是否在控制台显示debug信息

            MimeMessage message = new MimeMessage(mailSession);
            message.setFrom(new InternetAddress(from)); //发件人

            message.setRecipients(Message.RecipientType.TO,
                                  InternetAddress.parse(to));
            message.setSubject(subject); //邮件主题
            message.setText(content); //邮件内容
            message.saveChanges();

            Transport transport = mailSession.getTransport("smtp");
            transport.connect(host, user, password);
            transport.sendMessage(message, message.getAllRecipients());
            transport.close();
        } catch (Exception e) {
            System.out.println(e);
        }
    }

    public void Msgmultisendfile(String from, String to, String subject,
                                 String content, String filename) {
        Properties props = new Properties();
        props.put("mail.smtp.host", host); //指定SMTP服务器
        props.put("mail.smtp.auth", "true"); //指定是否需要SMTP验证
        try {
            Session mailSession = Session.getInstance(props, null);

            mailSession.setDebug(true); //是否在控制台显示debug信息

            MimeMessage message = new MimeMessage(mailSession);

            MimeBodyPart textBodyPart = new MimeBodyPart();
            textBodyPart.setText(content);

            MimeBodyPart fileBodyPart = new MimeBodyPart();
            FileDataSource fds = new FileDataSource(filename);
            fileBodyPart.setDataHandler(new DataHandler(fds));
            fileBodyPart.setFileName(fds.getName());

            Multipart container = new MimeMultipart();
            container.addBodyPart(textBodyPart);
            container.addBodyPart(fileBodyPart);

            message.setSubject(subject);
            message.setContent(container);
            message.setFrom(new InternetAddress(from));
            message.setRecipients(Message.RecipientType.TO,
                                  InternetAddress.parse(to));
            message.saveChanges();
            Transport transport = mailSession.getTransport("smtp");
            transport.connect(host, user, password);
            transport.sendMessage(message, message.getAllRecipients());
            transport.close();
        } catch (Exception e) {
            System.out.println(e);
        }
    }

    public void Msgsend(String from, String to, String subject, String content) {
        Properties props = new Properties();
        props.put("mail.smtp.host", host); //指定SMTP服务器
        props.put("mail.smtp.auth", "true"); //指定是否需要SMTP验证
        try {
            Session mailSession = Session.getDefaultInstance(props);

            mailSession.setDebug(true); //是否在控制台显示debug信息

            Message message = new MimeMessage(mailSession);
            message.setFrom(new InternetAddress(from)); //发件人
            message.addRecipient(Message.RecipientType.TO,
                                 new InternetAddress(to)); //收件人

            message.setSubject(subject); //邮件主题
            message.setText(content); //邮件内容
            message.saveChanges();

            Transport transport = mailSession.getTransport("smtp");
            transport.connect(host, user, password);
            transport.sendMessage(message, message.getAllRecipients());
            transport.close();
        } catch (Exception e) {
            System.out.println(e);
        }

    }

    public void Msgsendfile(String from, String to, String subject,
                            String content, String filename) {
        Properties props = new Properties();
        props.put("mail.smtp.host", host); //指定SMTP服务器
        props.put("mail.smtp.auth", "true"); //指定是否需要SMTP验证
        try {
            Session mailSession = Session.getDefaultInstance(props);

            mailSession.setDebug(true); //是否在控制台显示debug信息

            MimeMessage message = new MimeMessage(mailSession);

            MimeBodyPart textBodyPart = new MimeBodyPart();
            textBodyPart.setText(content);

            MimeBodyPart fileBodyPart = new MimeBodyPart();
            FileDataSource fds = new FileDataSource(filename);
            fileBodyPart.setDataHandler(new DataHandler(fds));
            fileBodyPart.setFileName(fds.getName());

            Multipart container = new MimeMultipart();
            container.addBodyPart(textBodyPart);
            container.addBodyPart(fileBodyPart);

            message.setSubject(subject);
            message.setContent(container);
            message.setFrom(new InternetAddress(from));
            message.addRecipient(Message.RecipientType.TO,
                                 new InternetAddress(to));
            message.saveChanges();
            Transport transport = mailSession.getTransport("smtp");
            transport.connect(host, user, password);
            transport.sendMessage(message, message.getAllRecipients());
            transport.close();
        } catch (Exception e) {
            System.out.println(e);
        }
    }

    public static void main(String args[]) {
        MsgsendService sm = new MsgsendService();

        sm.setHost("smtp.163.com"); //指定要使用的邮件服务器
        sm.setAccount("txy_821", "*********"); //指定帐号和密码

        sm.Msgmultisendfile("[e-mail]",
                            "[e-mail],[e-mail]",
                            "mose测试ing", "无语!",
                            "C:\\Documents and Settings\\mos\\桌面\\1233.jpg");
    }

}