I'm working on a spring boot application in which I have to generate some QR codes using Zxing library in one of the folders of my resources and creating a zip file and further deleting those QR code .png images. I'm able to do it in localhost, however, when I deployed the application on Heroku it is unable to locate the path Below is my code:
private void createQrCode(String data, String fileName) {
String charset = "UTF-8"; // or "ISO-8859-1"
Map hintMap = new HashMap();
hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
try {
BitMatrix matrix = new MultiFormatWriter().encode(new String(data.getBytes(charset), charset),
BarcodeFormat.QR_CODE, 400, 400, hintMap);
File file = new File("./src/main/resources/qr/"+fileName+".png");
MatrixToImageWriter.writeToFile(matrix, "png", file);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (WriterException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
I understand that I have given path in wrong way becuase when it will be packaged as jar, resources will be moved to a path which cannot be accessed like this. I'm looking for the solution for the same. Please help me out. Thanks in advance.
EDIT:
It is different from the asked question as in all the question people asked about reading a resource however in this question I'm asking about writing a resource that too using Zxing library which might be a issue here.
