public class AttachExample
{
public static void main (String[] args) throws Exception
{
String host = "smtp.21cn.com";
String from = "aaaa@21cn.com";
String to = "aaaa@21cn.com";
String fileAttachment = "E:\\附件.txt";
// Get system properties
Properties props = System.getProperties();
// Setup mail server
props.put("mail.smtp.host", host);
// Get session
Session session = Session.getInstance(props, null);
// 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));
String fileName = new String(fileAttachment.getBytes("GBK"),"ISO-8859-1");
int pos = fileName.lastIndexOf("\\");
fileName = fileName.substring(pos + 1);
messageBodyPart.setFileName(fileName);
multipart.addBodyPart(messageBodyPart);
// Put parts in message
message.setContent(multipart);
// Send the message
Transport.send( message );
}
}