Copy folder from inside .jar file to outside

[steel vessel]

<@&987246399047479336> please have a look, thanks.

[steel vessel]

While you are waiting for getting help, here are some tips to improve your experience:

Code is much easier to read if posted with syntax highlighting and proper formatting.

If nobody is calling back, that usually means that your question was not well asked and hence nobody feels confident enough answering. Try to use your time to elaborate, provide details, context, more code, examples and maybe some screenshots. With enough info, someone knows the answer for sure.

Don't forget to close your thread using the command </help-thread close:1027500463647621170> when your question has been answered, thanks.

[final salmon]

stuff inside a jar are not files anymore

a jar is NOT a folder

neither is a zip a folder

u cant just "open a jar/zip" and grab something inside it

thats an illusion

a jar/zip is a single file whose content only makes sense when u apply the zip algorithm to it

that said, there are utility classes available in java to help u with that

JarEntry and friends for example

with those files, u can navigate the contents, find the "file" and "extract" it

and then u can easily put it wherever u want

that said

theres potentially a much easier approach

u said they are resource files

so u can just load them using a resource stream

and then transfer that bytestream to a file

[serene turret]

get a Path to the outside, and then use Files.copy(). This is obviously not possible with a folder
Just so you know, the doc of FileVisitor literally spoonfeed you some code to copy or delete a whole folder by using Files class 🙂
That's said, the problem here isn't that, but that jars don't work like this

[final salmon]

again, if u have set them up as resource files, u dont need to do any of that

try (InputStream input = Foo.class.getResourceAsStream("foo.json");
  OutputStream output = Files.newOutputStream(Path.of("output.json"))) {
  input.transferTo(output);
}

thats all thats needed to copy a file outside

sounds like they are resource files then

[serene turret]

You don't need the OutputStream btw, just use .readAllBytes, then Files.write(bytes)

[final salmon]

possibly. but then u have to hold them in RAM

transfer doesnt

well, above shows u how

now use that for all ur files

u can use JarEntry to find all files dynamically

[serene turret]

Well it depends of the size of the files I guess, but fair

@little zinc why do you want to extract the files ?

[steel vessel]

Closed the thread due to inactivity.

If your question was not resolved yet, feel free to just post a message to reopen it, or create a new thread. But try to improve the quality of your question to make it easier to help you 👍