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 ); } }