具有“user.dir”系统属性的相对文件路径

Question

I'm trying to read in a local file in my web application on the server. When testing this outside of the deployment to JBoss, the file path is correct. However, when I deploy it to JBoss the file path changes JBoss's bin directory. The user.dir system property changes when it's deployed as a war.

How do I prevent that without using an absolute file path?

I want to avoid an absolute file path, because the project needs to be replicated on multiple machines that have different directory structures.

String curDir = System.getProperty("user.dir");

String fileLocation = curDir.toString() + "/end/of/path/to/flat.json";
JsonReader reader = new JsonReader(new InputStreamReader(new FileInputStream(fileLocation)));

Answer 1

Have you tried to call from the

HttpServeltRequest.getServletContext().getRealPath("META-INT/aop.xml");

It give you the real path on the current operating system.

Regards,

FT

Answer 2

Thanks to this question and answer I have found a solution. I'm not sure if this is the best way of doing it, but it works. I added src/main/resources folder in my web app, and put the files I need to access there.

Resources from src/main/resources will be put onto the root of the classpath, so you'll need to get the resource as:

The code:

String file = "/flat.json";

JsonReader reader = new JsonReader(new InputStreamReader(getClass().getResourceAsStream(file)));