How to get spring boot application jar parent folder path dynamically?

Question

I have a spring boot web application which I run using java -jar application.jar. I need to get the jar parent folder path dynamically from the code. How can I

Answer 1

Try this code

public static String getParentRealPath(URI uri) throws URISyntaxException {
    if (!"jar".equals(uri.getScheme()))
        return new File(uri).getParent();
    do {
        uri = new URI(uri.getSchemeSpecificPart());
    } while ("jar".equals(uri.getScheme()));
    File file = new File(uri);
    do {
        while (!file.getName().endsWith(".jar!"))
            file = file.getParentFile();
        String path = file.toURI().toString();
        uri = new URI(path.substring(0, path.length() - 1));
        file = new File(uri);
    } while (!file.exists());
    return file.getParent();
}

URI uri = clazz.getProtectionDomain().getCodeSource().getLocation().toURI();
System.out.println(getParentRealPath(uri));