javamail向163发送邮件

package com.servlet;

import java.sql.Timestamp;
import java.util.Properties;

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;

public class Mail{

    /** *//**
     * @param args
     */
    public static void main(String[] args){

        String smtphost = "smtp.163.com"; // 发送邮件服务器
        String user = "good_youth"; // 邮件服务器登录用户名
        String password = "×××"; // 邮件服务器登录密码
        String from = "[email protected]"; // 发送人邮件地址
        String to = "[email protected]"; // 接受人邮件地址
        String subject = "javamail测试"
                + (new Timestamp(System.currentTimeMillis())); // 邮件标题
        String body = "Java Mail Body!"; // 邮件内容
        Properties props = new Properties();
        props.put("mail.smtp.host", smtphost);
        props.put("mail.smtp.auth", "true");
        Session ssn = Session.getInstance(props, null);

        MimeMessage message = new MimeMessage(ssn);

        try{
            InternetAddress fromAddress = new InternetAddress(from);
            message.setFrom(fromAddress);
            InternetAddress toAddress = new InternetAddress(to);
            message.addRecipient(Message.RecipientType.TO, toAddress);

            message.setSubject(subject);
            message.setText(body);

            Transport transport = ssn.getTransport("smtp");
            transport.connect(smtphost, user, password);
            transport.sendMessage(message, message
                    .getRecipients(Message.RecipientType.TO));
            //transport.send(message);
            transport.close();
            System.out.println("mail has been send");
        } catch (MessagingException e){
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

}