SpringBoot v1.5.14.RELEASE - Reading files from test Resource Folder

Question

I want to read a file that I have inside the test folder

../resources/files/ElTimoDeLaEstampeta.json

So I create this function that works when the file is on the folder

../resources/ElTimoDeLaEstampeta.json

protected String getResourceFileAsString (String resourceFileName) throws Exception {
    Resource resource = new ClassPathResource(resourceFileName);
    return new String(IOUtils.toByteArray(resource.getInputStream()));
}

But when is inside the files folder I got an exception, I've tried with with the same result

getResourceFileAsString ("files/ElTimoDeLaEstampeta.json") 
getResourceFileAsString ("/files/ElTimoDeLaEstampeta.json") 
getResourceFileAsString ("files.ElTimoDeLaEstampeta.json");

Answer 1

To read a file from resources folder you have to use the class loader.

Try the following code:

@Test
    public void readFile() throws Exception {
        InputStream inputStream = MaestroTest.class.getClassLoader().getResourceAsStream("folder/file.json");
        String data = IOUtils.toString(inputStream, "UTF-8");
        System.out.println(data);
    }