I have a Problem with javax.mail parsing eml file

Question

javax.mail which version is 1.6.2 will have the problem of losing pictures when parsing eml files that contain text, pictures and attachments at the same time.

I wrote the following code to verify this question:

`public static void main(String[] args) { //this eml file contains text, picture,attachment at the same time; String emlFilePath1 = "C:\Users\userName\Desktop\textPictureAttachment.eml";

try (InputStream is1 = new FileInputStream(emlFilePath1)) {
    Session session = Session.getDefaultInstance(new Properties());
    MimeMessage message1 = new MimeMessage(session, is1);

    // accroding to the verify.eml,the message1's content is corrent at this momment;
    message1.writeTo(new FileOutputStream("C:\\Users\\userName\\Desktop\\verify.eml"));

    // multipart1's parts missed the picture
    MimeMultipart multipart1 = (MimeMultipart) message1.getContent();
} catch (IOException | MessagingException e) {
    e.printStackTrace();
}

}`

Answer 1

I have solved this problem.The parts in the object which returned by message1.getContent are not lost.One of the part's content-type is 'multipart/related',this is the key to solving the problem.Due to the content-type,this part has nested content which contains my pictures.