Java mail添加图片附件

package com.heartjack.db.batch.mail;

import java.io.File;

import java.io.IOException;

import java.io.UnsupportedEncodingException;

import java.util.ArrayList;

import java.util.List;

import java.util.Properties;

import javax.activation.DataHandler;

import javax.activation.DataSource;

import javax.activation.FileDataSource;

import javax.mail.BodyPart;

import javax.mail.Message;

import javax.mail.MessagingException;

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 com.heartjack.mvc.base.HjBaseException;

import com.heartjack.mvc.helper.HtmlReadHelper;

import com.heartjack.mvc.helper.ReadWriteFile;

public class SendInlineImagesInEmail {

   public static void main(String[] args) throws IOException, InterruptedException {
  
  SendInlineImagesInEmail client = new SendInlineImagesInEmail();
  
  List<String> emails = getEmails();
  List<String> fails = new ArrayList<String>();
  int count = 0;
  
  for (String to : emails) {
  client.SendEmail(getParentPathFile(), to, fails);
  
  count++;
 
  Thread.sleep(1000);
  }
  
  try {
ReadWriteFile.writeTxtFile(getParentPathFile().toString()+ "/hjMVCBatch/mail", "fail", fails.toString());
} catch (HjBaseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

     

   }

   

   public static File getParentPathFile() {
  File f = new File(".");
  File parentPathFile = f.getAbsoluteFile().getParentFile();

return parentPathFile;

   }

   

   

   public static List<String> getEmails() {
  
  List<String> emails = HtmlReadHelper.readMailList(
  new File( getParentPathFile(), "hjMVCBatch/mail"), "to");
  
  return emails;

   }

   public void SendEmail(File parentPathFile, String to, List<String> fails) {
  
 
  // Recipient's email ID needs to be mentioned.

//     String to = "xxx";

     // Sender's email ID needs to be mentioned

     String from = "xxx";

     final String username = "xxx";//change accordingly

     final String password = "xxx";//change accordingly

     // Assuming you are sending email through smtp.pigai.me

     String host = "smtp.shenqing.me";

     Properties props = new Properties();

     props.put("mail.smtp.auth", "true");

     props.put("mail.smtp.starttls.enable", "true");

     props.put("mail.smtp.host", host);

     props.put("mail.smtp.port", "25");

     Session session = Session.getInstance(props,

        new javax.mail.Authenticator() {

           protected PasswordAuthentication getPasswordAuthentication() {

              return new PasswordAuthentication(username, password);

           }

        });

     try {

        // Create a default MimeMessage object.

        Message message = new MimeMessage(session);

        // Set From: header field of the header.

        message.setFrom(new InternetAddress(from));

        // Set To: header field of the header.

        message.setRecipients(Message.RecipientType.TO,

           InternetAddress.parse(to));

        // Set Subject: header field

        message.setSubject("完全免费的申请神器？高效又使用的写作帮手？你没有看错，这都不是梦！");

        // This mail has 2 part, the BODY and the embedded image

        MimeMultipart multipart = new MimeMultipart("related");

        // first part (the html)

        BodyPart messageBodyPart = new MimeBodyPart();

        //从文件读取编辑内容

       
String info = HtmlReadHelper.readhtml(new File(parentPathFile, "hjMVCBatch/html") ,"mail2");

        

        String htmlText = info + "<img src=\"cid:college\">"+ "<br/>" + "<img src=\"cid:writing\">";

        messageBodyPart.setContent(htmlText, "text/html;charset=UTF-8");

        // add it

        multipart.addBodyPart(messageBodyPart);

        // second part (the image)

        messageBodyPart = new MimeBodyPart();

        DataSource college = new FileDataSource("hjMVCBatch/images/college.png");

        messageBodyPart.setDataHandler(new DataHandler(college));

        messageBodyPart.setHeader("Content-ID", "<college>");

        // add image to the multipart

        multipart.addBodyPart(messageBodyPart);

        

        messageBodyPart = new MimeBodyPart();

        DataSource writing = new FileDataSource("hjMVCBatch/images/writing.jpg");

        messageBodyPart.setDataHandler(new DataHandler(writing));

        messageBodyPart.setHeader("Content-ID", "<writing>");

        

        // add image to the multipart

        multipart.addBodyPart(messageBodyPart);

        // put everything together

        message.setContent(multipart);

        // Send message

        message.saveChanges();

        Transport.send(message);

        session = null;

        message = null;

        college = null;

        writing = null;

        System.out.println(to + "   Sent");

     } catch (MessagingException e) {

    byte[] bytes = e.getMessage().getBytes();

    try {
String msg = new String(bytes,"ISO8859-1");
System.out.println(to + "   (" + msg + ")");
e.printStackTrace();
} catch (UnsupportedEncodingException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}

    fails.add(to + "   (" + e.getMessage() + ")\r\n");

     

//        throw new RuntimeException(e);

     }

   }

}