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javapathniogetresource

getResource() to Path issue

Within my program i have a line of code:

Path toRead = new File(getClass().getResource("/data.txt").toString()).toPath();

Whenever I try to run this I get an error:

Exception in thread "main" java.nio.file.InvalidPathException: Illegal char <:> at index 4

As a normal File it seems to run fine but as a Path it messes up, is there a solution to this?

I need it as a Path in order to use Files.copy().

The folder that data.txt is in is added as a source folder.

Solution

  • You should never assume that a URL returned from getResource() is referring to a file. You should only ever use URL.openStream(). That is actually what getResourceAsStream() does.

    try (InputStream is = getClass().getResourceAsStream("/data.txt")) {
    Files.copy(is, targetPath);
}