当项目为 a.jar 或 IDE 时，如何动态访问 src/main/resources 中的文件

Question

I have a project that uses files found in src/main/resources*/input* and generates files in src/main/resources*/output*.

I often used to use

System.getProperty("user.dir") + "/src/main/resources"

My issue with this is that it is not dynamic. It works fine when I use my IDE, but when I build my project as a.jar file, I end up having to add src/main/resources to the root where the jar is located.....which is probably bad.

I have tried using the following which returns null pointer exception

this.getClass().getResource("input").getPath().toString()

Can someone please provide me with a dynamic way to access these directories that I need that are inside src/main/resources in a dynamic way that works from the IDE and from the.jar ?

Answer 1

You could access the files from resource folder using:

this.getClass().getResourceAsStream("/NLP/models/en-lemmatizer.bin").toString();

NLP is a folder in resource, which in turn has a models folder with bin file inside it.

As per my knowledge, you cannot generate files or create new files inside a jar.