javamail 发送附件的例子

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import java.util.Properties;

import javax.mail.*;

import javax.mail.internet.*;

import javax.activation.*;



public class AttachExample {

   public static void main (String args[]) 

         throws Exception {

      String host = args[0];

      String from = args[1];

      String to = args[2];

      String fileAttachment = args[3];



      // Get system properties

      Properties props = System.getProperties();



      // Setup mail server

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



      // Get session

      Session session = 

         Session.getInstance(props, null);



      // Define message

      MimeMessage message = 

         new MimeMessage(session);

      message.setFrom(

         new InternetAddress(from));

      message.addRecipient(

         Message.RecipientType.TO, 

         new InternetAddress(to));

      message.setSubject(

         "Hello JavaMail Attachment");



      // create the message part 

      MimeBodyPart messageBodyPart = 

         new MimeBodyPart();



      //fill message

      messageBodyPart.setText("Hi");



      Multipart multipart = new MimeMultipart();

      multipart.addBodyPart(messageBodyPart);



      // Part two is attachment

      messageBodyPart = new MimeBodyPart();

      DataSource source = 

         new FileDataSource(fileAttachment);

      messageBodyPart.setDataHandler(

         new DataHandler(source));

      messageBodyPart.setFileName(fileAttachment);

      multipart.addBodyPart(messageBodyPart);



      // Put parts in message

      message.setContent(multipart);



      // Send the message

      Transport.send( message );

   }

}   

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