ssl多人多附件多格式邮件发送

package com.dfmy.util;
import java.io.File;
import java.security.Security;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.Authenticator;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
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;
import org.junit.Test;

/**
 * javaMail的邮件工具类
 *
 */
public class sendEmailUtils {
    /**
     * 使用加密的方式,利用465端口进行传输邮件,开启ssl
     * @param to    收件人邮箱
     * @param message    发送的消息
     */
    @SuppressWarnings("restriction")
	public static void sendEmil(String to, String subject,String message,String html,List<File> files ) {
        try {
            Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
            final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
            //设置邮件会话参数
            Properties props = new Properties();
            //邮箱的发送服务器地址
            props.setProperty("mail.smtp.host", "smtp.exmail.qq.com");
            props.setProperty("mail.smtp.socketFactory.class", SSL_FACTORY);
            props.setProperty("mail.smtp.socketFactory.fallback", "false");
            //邮箱发送服务器端口,这里设置为465端口
            props.setProperty("mail.smtp.port", "465");
            props.setProperty("mail.smtp.socketFactory.port", "465");
            props.put("mail.smtp.auth", "true");
            final String username = "echo@luotuowenxueshe.cn";
            final String password = "Wxdlt1314";
            //获取到邮箱会话,利用匿名内部类的方式,将发送者邮箱用户名和密码授权给jvm
            Session session = Session.getDefaultInstance(props, new Authenticator() {
                protected PasswordAuthentication getPasswordAuthentication() {
                    return new PasswordAuthentication(username, password);
                }
            });
            //通过会话,得到一个邮件,用于发送
            Message msg = new MimeMessage(session);
            //设置发件人
            msg.setFrom(new InternetAddress("echo@luotuowenxueshe.cn"));
            //设置收件人,to为收件人,cc为抄送,bcc为密送
            msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to, false));
            msg.setRecipients(Message.RecipientType.CC, InternetAddress.parse(to, false));
            msg.setRecipients(Message.RecipientType.BCC, InternetAddress.parse(to, false));

            //设置发送的日期
            msg.setSentDate(new Date());

            //设置邮件主题
            msg.setSubject(subject);

            //设置邮件消息
            // msg.setText(message);

            /**/

          //整封邮件的MINE消息体
		     MimeMultipart msgMultipart = new MimeMultipart("mixed");//混合的组合关系
		     //设置邮件的MINE消息体
		     msg.setContent(msgMultipart);

		     //related
		     MimeMultipart relatedPart  = new MimeMultipart("related");

		     //alternative
		     MimeMultipart alternativePart = new MimeMultipart("alternative"); 

		     //
		     MimeBodyPart relatedcontent = new MimeBodyPart();
		     MimeBodyPart alternativecontent = new MimeBodyPart();

		     //
		     relatedcontent.setContent(relatedPart);
		     alternativecontent.setContent(alternativePart);

		     if (message != null && message!="") {
		    	 //纯文本消息
			     BodyPart textpart = new MimeBodyPart();
			     textpart.setText(message);
			     alternativePart.addBodyPart(textpart);
			 }

		     if (html != null && html != "") {
		    	//html代码部分
			     MimeBodyPart htmlPart = new MimeBodyPart();
		         //html代码
		         htmlPart.setContent(html,"text/html;charset=utf-8");
		         alternativePart.addBodyPart(htmlPart);
			 }

	         //html中嵌套的图片部分
		     //MimeBodyPart imgPart = new MimeBodyPart();
		     //正文添加图片和html代码
		     //relatedPart.addBodyPart(imgPart);
		     //图片代码
	         //imgPart.setHeader("Content-Location", "http://www.luotuowenxueshe.cn/upload/avatar/0/13.jpg");

	         //附件
	            // 添加附件的内容
	         if (null != files && files.size() != 0) {
	            	for (File file : files) {
	            		MimeBodyPart attachmentBodyPart = new MimeBodyPart();
 	            		DataSource source = new FileDataSource(file);
	            		attachmentBodyPart.setDataHandler(new DataHandler(source));
	            		//MimeUtility.encodeWord可以避免文件名乱码
	                    attachmentBodyPart.setFileName(MimeUtility.encodeWord(file.getName()));
	                    //把附件加入到 MINE消息体中
	                    msgMultipart.addBodyPart(attachmentBodyPart);
					}
	           } 

	         //把内容加入到 MINE消息体中
	         //relatedPart.addBodyPart(alternativecontent);
		     msgMultipart.addBodyPart(alternativecontent);

	         //生成文件邮件
	         msg.saveChanges();

            /**/
            //调用Transport的send方法去发送邮件
            Transport.send(msg);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @Test
    public void testsend(){

    	String to ="1334663563@qq.com,18293169616@163.com";
    	String subject ="测试主题";
    	String text ="测试文本内容aaa111";
    	String html ="<span style='color:red'>中文呵呵5464646kl;kd</span> <img src='http://www.luotuowenxueshe.cn/upload/avatar/0/13.jpg'>";
    	File testFile=new File("D:\\test/123.txt");
    	File testFileimg=new File("D:\\test/93438.jpg");
    	File mydoc=new File("D:\\test/mydoc1.doc");

    	List<File> files=new ArrayList<File>();

    	files.add(testFile);
    	files.add(testFileimg);
    	files.add(mydoc);

    	sendEmil(to, subject, text,html, files);
    }

}