package mail;

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

import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;

public class SendMail {

    private String mailServer, mailPort,username, password;
    private Session mailSession;
    private Properties prop;
    private Message message;

    /**
     * // 设置邮件服务器相关
     */
    public SendMail(String mailServer, String mailPort, String username, String password) {
        this.mailServer = mailServer;
        this.mailPort = mailPort;
        this.username = username;
        this.password = password;
    }

    /**
     * 
     * @param to : 18955175547@189.cn;
     * @param mailSubject:
     * @param mailContent
     */
    public void send(String to, String mailSubject, String mailContent) {
        EmailAuthenticator mailauth = new EmailAuthenticator(username, password);
        // 设置邮件服务器
        prop = System.getProperties();
        prop.put("mail.smtp.auth", "true");
        prop.put("mail.smtp.host", mailServer);
        prop.put("mail.smtp.port", mailPort);
        // 产生新的Session服务
        mailSession = mailSession.getDefaultInstance(prop, (Authenticator) mailauth);
        message = new MimeMessage(mailSession);

        try {
            message.setFrom(new InternetAddress(username)); // 设置发件人
            message.setRecipient(Message.RecipientType.TO, new InternetAddress(to));// 设置收件人
            message.setSubject(mailSubject);// 设置主题
//            message.setContent(mailContent, "text/plain");// 设置内容,中文乱码，用下面的方法
        
            // 设置内容
            Multipart multipart = new MimeMultipart();
            MimeBodyPart mimeBodyPart = new MimeBodyPart();             
            mimeBodyPart.setText(mailContent);             
//            mimeBodyPart.setFileName(MimeUtility.encodeText(mailContent, "GBK", "B")); //对邮件头采用base64方式编码   
            multipart.addBodyPart(mimeBodyPart);   
            message.setContent(multipart);
            
            // 设置日期
            message.setSentDate(new Date());
            Transport tran = mailSession.getTransport("smtp");
            tran.connect(mailServer, username, password);
            tran.send(message, message.getAllRecipients());
            tran.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }


    public static void main(String[] args) {
        SendMail mail;
        mail = new SendMail("222.74.xxx.xxx", "25", "liuyou@bellinms.com", "123456");    
        System.out.println("sending......");
        mail.send("15375287539@189.cn", "Date:" + new Date().toLocaleString(), "eess1234");
        System.out.println("finished!");
        try{
            Thread.sleep(5*1000L);
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }
}