email attachment

[Li Jenny]

i need to has a email function, but how can i store the attachment path
and then retrieve to let user click to download

[Christophe Verré]

Please check your Private Messages.

[salvin francis]

Assuming you are using POP3 or IMAP to access the email from the server...

Both the protocols allow you to access a message and all its attachments easily, is your problem reading the message?

provide some more details ....

[Li Jenny]

yes. if i store the attachment path
how can i read it and add hyerlink let user download like common email function

[salvin francis]

I dont think you can add that as an hyperlink in your application.
mail servers would usually not have a static address for the attachments.

The attachment will be available to your application only when the user has successfully authenticated with the email server and your application has queried for the details of a selected email.

The attachment received will be a part of the Message object.

lets hope this helps you get started, i have left out the attachments part for you...

// -- imap code to read message in folder : 'currentFolder'
for (int messageWalker = 1; messageWalker <= currentFolder.getMessageCount(); messageWalker++)
{
	Message message = currentFolder.getMessage(messageWalker);
	System.out.println("\n\tMessage content type :" + message.getContentType());

	//Try and figure out how to read the message's attachments here ...

	message.getDataHandler().writeTo(System.out);
	InputStream ip = message.getInputStream();
	
	BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(ip));
	String lineReader = bufferedReader.readLine();
	while (lineReader != null)
	{
		System.out.println("\n\t\t" + lineReader);
		lineReader = bufferedReader.readLine();
	}
	System.out.println("\n\t\t Size :" + message.getSize());
}

[Rob Spoor]

Part.getContent() is your friend when reading anything from an email's contents. Message implements Part.

Run the following recursive call on your Message and see what it returns:

public void analyze(Part part) throws MessagingException, IOException
{
    String fileName = part.getFileName();
    String contentType = part.getContentType();
    Object content = part.getContent();
    System.out.printf("Part: %s, %s, %s%n", fileName, contentType, content.getClass());
    if (content instanceof Multipart) // I'll give you this special case
    {
        Multipart mp = (Multipart)content;
        for (int i = 0; i < mp.getCount(); i++)
        {
            BodyPart bp = mp.getBodyPart(i);
            analyze(bp); // BodyPart also implements Part
        }
    }
}

You'll then see for each little part of your email how it is represented. The content could be a String, Multipart, or something else. It's one of those "something else"s you will need.

[Li Jenny]

my code is as below:

MultipartRequest multi = new MultipartRequest(httpRequest , "." , 5*1024*1024 , "big5");

String mailserver = "smtpo.hkbn.net";
String From = multi.getParameter("From");
String to = multi.getParameter("To");
String Subject = multi.getParameter("Subject");
String type = multi.getParameter("Type");
String messageText = multi.getParameter("Message");
String FileName = multi.getFilesystemName("FileName");

boolean sessionDebug = false;

try {


java.util.Properties props = System.getProperties();

props.put("mail.host",mailserver);
props.put("mail.transport.protocol","smtp");


....this is part of my code....

do i insert email attachment as string object into the database.
and treat as string object to select attachment to resultset
how to add link to text,after clicking text ,then download and save as the attachement.???

[Jesper de Jong]

Please UseCodeTags when you post source code.

[Rob Spoor]

I have one important question: what do you want to do exactly? Read an attachment from an existing email, add an attachment to a new email, something else? Because it's not completely clear to me.