Thread: Having issues loading files using getClass().getResource()

I am using Intellij IDEA. For some reason the "Manage Attachments" button here doesn't do anything when clicked, so I've put an image showing the project tree up on imgur:
https://imgur.com/a/jq8LeFO

I am trying to access the file data.xlsx in /res/data/. It appears I have set up the resources folder correctly since it created the matching output folders and copied the files there.

One of my files contains the line:

dataFile = new XSSFWorkbook(getClass().getResource("/data/data.xlsx").toString());

This results in an error:
Caused by: java.io.FileNotFoundException: file:\C:\Users\t74bd\IdeaProjects\Phobos%20Project \out\production\Phobos%20Project\data\data.xlsx (The filename, directory name, or volume label syntax is incorrect)

However when I specify the direct path:

dataFile = new XSSFWorkbook("c:/Users/t74bd/IdeaProjects/Phobos Project/out/production/Phobos Project/data/data.xlsx");

This works without error.

I did notice that the error the first time included "file:\" before "C", so I tried this:

dataFile = new XSSFWorkbook(getClass().getResource("/data/data.xlsx").toString().substring(6));

This still gives the error:
Caused by: java.io.FileNotFoundException: C:\Users\t74bd\IdeaProjects\Phobos%20Project\out\p roduction\Phobos%20Project\data\data.xlsx (The system cannot find the path specified)

I also noticed that it has swapped backslashes with forward slashes, and is using an escape sequence %20. I'm assuming these aren't issues.

EDIT: The last error message posted above appears to have a space in the word "production". That space only shows in the post, not when I edit the post (as I am now). It's not there, just some weird forum bug inserting a space.

java.io.FileNotFoundException: It could be that you cannot upload the file you want on the computer when the computer you are on is the computer to upload it on. The network shares files to be transferred over via the internet. So uploading a file on your computer to view it, is not possible. Sharing it over the internet and if it's your own file, this is possible.