Filedatasource path not coming dynamically

Question

Hi I have the following code:

    MimeMessage msg = new MimeMessage(session);
    InternetAddress addressFrom = new InternetAddress("krao346789@gmail.com");
    msg.setFrom(addressFrom);

    InternetAddress[] addressTo = new InternetAddress[sendTo.length];
    for (int i = 0; i < sendTo.length; i++) {
    addressTo[i] = new InternetAddress(sendTo[i]);
    }
    msg.setRecipients(Message.RecipientType.TO, addressTo);

    // Setting the Subject and Content Type
    msg.setSubject(emailSubjectTxt);
    /*Image part*/

    MimeMultipart multipart = new MimeMultipart("related");  

    // first part  (the html)  
    BodyPart messageBodyPart = new MimeBodyPart();  
    String htmlText = "<H1>Hello</H1><img src=\"cid:image\">";  
    messageBodyPart.setContent(htmlText, "text/html");  

    // add it  
    multipart.addBodyPart(messageBodyPart);  

    // second part (the image)  
    messageBodyPart = new MimeBodyPart();  
    String contextPath=request.getContextPath();
    System.out.println("contextpath"+contextPath);
    File contextDir = new File(contextPath);  
    System.out.println("contextDir"+contextDir);
    File emailImage = new File(contextDir, "/images/sample.jpeg"); 
    System.out.println("emailImage"+emailImage);

    DataSource fds = new FileDataSource(emailImage);  
    //System.out.println("fds"+fds.getName());
    messageBodyPart.setDataHandler(new DataHandler(fds));  
    messageBodyPart.setHeader("Content-ID","<image>");  

    // add it  
    multipart.addBodyPart(messageBodyPart);  

    // put everything together  
    msg.setContent(multipart);  
    Transport.send(msg);
}

It works fine if I use

DataSource fds = new FileDataSource("C:\\images\\sample.jpeg");

instead of

DataSource fds = new FileDataSource(emailImage);

But I want to access image from WebContent->images.
I get java.lang.NullPointerException when I run this.

Please post stack trace to be able to tell where the NullPointerException is. Also you should do a check with `File.exists()` to see if the file does really exist where you think it is.. — ppeterka, Oct 15 '12 at 12:14
If you are using servlets to call that image then try this one http://stackoverflow.com/questions/1479036/access-file-in-webcontent-folder-from-a-servlet — Josephkingstonleo Mariamicheal, Oct 15 '12 at 12:22
Which web application API is used? `Servlet JSP` or `JSF`..... — Zaw Than oo, Oct 16 '12 at 05:58
@Josephkingstonleo Mariamicheal- tried that...showing the same error — user1746981, Oct 16 '12 at 06:19

score 0 · Answer 1 · edited Oct 15 '12 at 13:11

0

If you would like to use in web application. First, you have to upload your attachment file to server as InputStream and then create attachment file by using this InputStream.

edited Oct 15 '12 at 13:11

maxstreifeneder

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answered Oct 15 '12 at 12:53

Zaw Than oo

9,651
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1

I dont wnat to create attachment. I want the image to go in the mail. Eg company logo – user1746981 Oct 16 '12 at 05:54
whatever it is, you have to upload `Image` to server side firstly. – Zaw Than oo Oct 16 '12 at 05:55
@CycDemo-Its already there in server side...its in WebContent->images – user1746981 Oct 16 '12 at 06:42

score 0 · Answer 2 · answered Oct 17 '12 at 11:04

0

Solved: Use getRealPath(); Its working fine now.

File contextDir = new File(request.getRealPath("/images/sample.jpeg"));
DataSource fds = new FileDataSource(contextDir);

answered Oct 17 '12 at 11:04

user1746981

21
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score 0 · Answer 3 · answered Feb 03 '21 at 07:06

If images/sample.jpeg is from your resources folder then try this :

DataSource fds = new FileDataSource(getFileHandle("images/sample.jpeg"));

public static File getFileHandle(String fileName){
       return new File(YourClassName.class.getClassLoader().getResource(fileName).getFile());
}

in case of non static reference:

return new File(getClass().getClassLoader().getResource(fileName).getFile());

Filedatasource path not coming dynamically

3 Answers3