sysLoader.getResource() problem in java

Question

I am having following lines of code.

sysLoader = (URLClassLoader)Thread.currentThread().getContextClassLoader(); url = sysLoader.getResource("tempFile.txt"); 

It is giving an weird problem. If I run this from a path where there is no space in the path (Folder names) then it is running fine. But if the path contains any spaces (line "c:\New Foler...") then it is not working.

How to solve this?

EDIT: In more detail - I inspected the sysloader object.

sysloader -> UCP -> path

Is having a path with character %20 instead of space

And therefore all the URLs are null.

How to resolve this?

Answer 1

This is known by Sun/Oracle, their advice is to use URI objects which will remove the %20 characters:

Instead of doing this:

FileInputStream fis = new FileInputStream(url.getFile()); 

you can force any %-escaped characters to be decoded by first converting the URL to a URI, and then use the path component of the URI as the filename:

URI uri = new URI(url.toString()); FileInputStream fis = new FileInputStream(uri.getPath()); 

Answer 2

Use URLDecoder.decode() method to replace %20 characters by spaces.

String path = URLDecoder.decode(url.getPath(), "UTF-8");

Please also keep in mind that when resource is located in jar file you have to handle it different way. See it e.g. here: How to access resources in jar where it can be present in multiple jar