java mail

package com.oneplus.mail;

import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.NoSuchProviderException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
/**
 *@author eason
 *@since 2014年2月8日
 *@功能：简单的发送邮件
 */
public class SendMail {

	private static int port = 25;
	private static String server = "smtp.sina.com";// 邮件服务器
	private static String from = "eason";// 显示的发件人名字
	private static String user = "[email protected]";// 发送者邮箱地址
	private static String password = "xxxxxx";//发送者邮箱密码

	/**
	 * @功能：发送邮件
	 * @param email 收件人邮箱
	 * @param subject 主题
	 * @param body 内容
	 * @throws UnsupportedEncodingException
	 */
    public static void sendEmail(List<String> emails, String subject, String body) 
    		throws UnsupportedEncodingException {
    	
    	Transport transport = null;
        try {
            Properties props = new Properties();
            props.put("mail.smtp.host", server);
            props.put("mail.smtp.port", port);
            props.put("mail.smtp.auth", "true");
            Session session = Session.getDefaultInstance(props, null);
            
            transport = session.getTransport("smtp");
            transport.connect(server, user, password);
            int num = emails.size();
            InternetAddress[] toAddress = new InternetAddress[num];
            for(int i=0; i<num; i++) {
            	toAddress[i] = new InternetAddress(emails.get(i));
            }
            
            MimeMessage msg = new MimeMessage(session);
            InternetAddress fromAddress = new InternetAddress(user,from,"UTF-8");
            msg.setContent(body, "text/html ;charset=UTF-8"); //内容格式为HTML
            //msg.setText(body, "UTF-8");  内容格式为文本方式
            msg.setSentDate(new Date());
            msg.setFrom(fromAddress);
            msg.setRecipients(Message.RecipientType.TO, toAddress);
            msg.setSubject(subject, "UTF-8");   
            msg.saveChanges();
            //发送
            transport.sendMessage(msg, msg.getAllRecipients());
        } catch (NoSuchProviderException e) {
            e.printStackTrace();
        } catch (MessagingException e) {
            e.printStackTrace();
        } catch (Exception e) {
        	e.printStackTrace();
        } finally {
        	if(null != transport) {
        		try {
					transport.close();
				} catch (MessagingException e) {
					e.printStackTrace();
				}
        	}
        }
    }
    
    public static void main(String args[]) throws UnsupportedEncodingException
    {
    	String subject = "邮件测试";
    	String content = "<font color='red'>这是简单的测试邮件！！！</font>";
    	//收件人列表
    	List<String> emails = new ArrayList<String>();
    	emails.add("[email protected]");
    	emails.add("xxxxxx");
    	
    	emails.add("xxxxxxx.cn");
    	emails.add("xxxxxxx");
    	
    	sendEmail(emails, subject, content);
        System.out.println("ok");
    }
}