Question

I tried to create a QR Barcode generator using ZXing. I wanted to encode a mecode object in the QR Code: http://www.nttdocomo.co.jp/english/service/developer/make/content/barcode/function/application/addressbook/index.html

I have this code

        bitMatrix = writer.encode(mecard, BarcodeFormat.QR_CODE, 300, 300);
        BufferedImage img = MatrixToImageWriter.toBufferedImage(bitMatrix);

        ByteArrayOutputStream os = new ByteArrayOutputStream();
        OutputStream b64 = new Base64.OutputStream(os);
        ImageIO.write(img, "png", b64);
        String result = os.toString("UTF-8");

Which generates the correct output when creating text and urls. But when I try to encode "MECARD:N:Doe,John;TEL:[phone];TEL:[phone];EMAIL:[e-mail];;"
It gives an Invalid Base64 String. Are there some illegal characters that the encoder can’t handle?

Answer 1

The problem was in the MECARD spec. MECARD Only allows one TEL part. I wanted to use two. That’s it