【JAVAMAil之带附件发送邮件】

package cn.com.test.mail;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.OutputStream;

import java.util.Properties;

import javax.activation.DataHandler;

import javax.activation.FileDataSource;

import javax.mail.Message;

import javax.mail.Message.RecipientType;

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.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 Demo3 {

public static void main(String[] args) throws Exception {

//发件人地址

    String senderAddress = "[email protected]";

   //收件人地址

   String recipientAddress = "[email protected]";

   //发件人账户名

   String senderAccount = "[email protected]";

   //发件人账户密码

   String senderPassword = "$#@FEFE#";

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*/

msg.setFrom(new InternetAddress(senderAddress));

msg.setRecipients(RecipientType.TO, InternetAddress.parse(recipientAddress));

msg.setSubject("From gaojingsong 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);

ByteArrayDataSource fileds = new ByteArrayDataSource(new FileInputStream("F:/micro_workspace/mail/src/main/java/50.jpg"),"application/octet-stream");  

        DataHandler imgDataHandler = new DataHandler(fileds);

//DataSource imgds = new FileDataSource("D:\\picture\\jpg\\touxiang.jpg");

//DataHandler imgDataHandler = new DataHandler(imgds);

img.setDataHandler(imgDataHandler);

//注意：Content-ID的属性值一定要加上<>，不能是touxiang.jpg

img.setHeader("Content-ID", "<touxiang.jpg>");

//为图片设置文件名，有的邮箱会把html内嵌的图片也当成附件

img.setFileName("touxianga.jpg");

//设置文字内容

/**

* 注意：在html代码中要想显示刚才的touxiang.jpg

* src里不能直接写Content-ID的值，要用cid:这种方式

*/

content.setContent("<div style='color:red;font-size:18px;'>http://gaojingsong.iteye.com/</div>：" +

"我这里有一张图片<img src='cid:touxiang.jpg' alt='touxiang' " +

"width=\"30px\" height='40px' />,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("F:/micro_workspace/mail/src/main/java/cn/com/test/mail/App.java")));

attach1.setFileName("file1.txt");

attach2.setDataHandler(new DataHandler(new FileDataSource("F:/micro_workspace/mail/src/main/java/2018-07-29_182356.jpg")));

attach2.setFileName("file2.jpg");

msg.saveChanges();

//把邮件以文件的形式写入到磁盘

OutputStream os = new FileOutputStream("C:\\demo.eml");

msg.writeTo(os);

os.close();

Transport trans = session.getTransport();

trans.connect("smtp.服务器", 25, senderAccount, senderPassword);

trans.sendMessage(msg,msg.getAllRecipients());

}

}