Java邮件开发(三):解决附件名为乱码及显示友好名称

package com.zyh.demo;
 
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.Properties;
 
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.Message;
import javax.mail.Message.RecipientType;
import javax.mail.Address;
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;
import javax.mail.util.ByteArrayDataSource;
 
/**
 * 创建一个复杂的邮件，这个邮件包括一段正文和两个附件
 * 其中正文要包含一张图片
 * @author Administrator
 *
 */
public class Demo4 {
	
	public static void main(String[] args) throws Exception {
		Properties props = new Properties();
		props.setProperty("mail.smtp.auth", "true");
		props.setProperty("mail.transport.protocol", "smtp");
		
		Session session = Session.getInstance(props);
		session.setDebug(true);
		
		Message msg = new MimeMessage(session);
		/*邮件消息头设置*/
		//使用MimeUtility.encodeText()方法对中文进行编码（base64或QP）
		msg.setFrom(new InternetAddress("\"" + MimeUtility.encodeText("张益达sss") + "\" <zyh5540@163.com>"));
		msg.setReplyTo(new Address[]{new InternetAddress("zyh5540@163.com")});
		//友好名称和邮箱地址之间不要忘了有一空格，邮箱地址之间用逗号分隔
		//如：张益达sohu <zyh5540@sohu.com>,张益达qq <554077931@qq.com>,张益达163 <zyh5540@163.com>
		msg.setRecipients(RecipientType.TO,InternetAddress.parse(MimeUtility.encodeText("张益达sohu") + " <zyh5540@sohu.com>," 
				+ MimeUtility.encodeText("张益达qq") + " <554077931@qq.com>,"
				+ MimeUtility.encodeText("张益达sina") + " <zyh5540@sina.com>,"
				+ MimeUtility.encodeText("张益达163") + " <zyh5540@163.com>"));
		msg.setSubject("From 163 这是一封复杂邮件");
		
		/*邮件消息内容设置，包括两个附件和一段正文*/
		Multipart msgPart = new MimeMultipart("mixed");
		msg.setContent(msgPart);		
		
		MimeBodyPart body = new MimeBodyPart();     //表示正文
		MimeBodyPart attach1 = new MimeBodyPart();  //表示附件1
		MimeBodyPart attach2 = new MimeBodyPart();  //表示附件2
		msgPart.addBodyPart(body);
		msgPart.addBodyPart(attach1);
		msgPart.addBodyPart(attach2);
		
		/*以下为设置正文*/
		/*正文是文字和图片混合的*/
		Multipart contentPart = new MimeMultipart("related");
		body.setContent(contentPart);
		MimeBodyPart content = new MimeBodyPart(); //文字
		MimeBodyPart img = new MimeBodyPart();     //图片
		contentPart.addBodyPart(content);
		contentPart.addBodyPart(img);
		
		DataSource fileds = new ByteArrayDataSource(new FileInputStream("D:\\picture\\jpg\\touxiang.jpg"),"image/jpeg");  
        DataHandler imgDataHandler = new DataHandler(fileds);
		img.setDataHandler(imgDataHandler);
		img.setHeader("Content-ID", "<touxiang.jpg>");
		img.setFileName(MimeUtility.encodeText("头像.jpg"));
		//设置文字内容
		content.setContent("<div style=‘color:red;font-size:18px;‘>从163发来的邮件</div>：我这里有一张图片<img src=‘cid:touxiang.jpg‘ alt=‘touxiang‘ width=\"100px\" height=‘100px‘ />,好看吗？", "text/html;charset=utf-8");
		/*正文内容设置结束*/
		
		/*下面为设置附件*/
		attach1.setDataHandler(new DataHandler(new FileDataSource("E:\\others\\firefox.txt")));
		attach1.setFileName(MimeUtility.encodeText("文件1.txt"));
		attach2.setDataHandler(new DataHandler(new FileDataSource("E:\\others\\java.txt")));
		attach2.setFileName(MimeUtility.encodeText("file文件2.txt"));
		
		msg.saveChanges();
		
		OutputStream os = new FileOutputStream("E:\\demo4.eml");
		msg.writeTo(os);
		os.close();
		
		Transport trans = session.getTransport();
		trans.connect("smtp.163.com", 25, "zyh5540", "test");
		trans.sendMessage(msg,msg.getAllRecipients());
	}
}