如何从jar添加和读取资源文件

Question

I have hibernate.cfg.xml and test.txt in the path which i read by java program. Now when i created the jar using maven those files were not present. So i read that i should put in the resources folder , so now my directory structure is

scr -> main-> java

  ->resources 

Now i can see the files in the jar but they are not inside resource folder it bascically

myjar.jar -> com (source code)

  -> META -INF -> hibernate.cfg.xml -> test.txt 

I tried accessing using

getClass().getResourceAsStream("test.txt")

but got null..

Let me know what steps are wrong ?

Answer 1

getClass().getResourceAsStream(name) searches for the resource in the same dir as the class for which this method is called is in.

For instance, you have class A and resource test.txt in the same dir the you call getClass().getResourceAsStream("test.txt") . If it's located in some subdir, you need to express that in name : getClass().getResourceAsStream("subdir/test.txt") .

I haven't tested that, but looking in dirs above current should be possible with: getClass().getResourceAsStream("../test.txt") .

Answer 2

看这篇文章 ， getClass().getResourceAsStream("/test.txt")有什么不同吗？