Issue
I have a project with 2 packages:
tkorg.idrs.core.searchengines
tkorg.idrs.core.searchengines
In package (2) I have a text file ListStopWords.txt
, in package (1) I have a class FileLoadder
. Here is code in FileLoader
:
File file = new File("properties\\files\\ListStopWords.txt");
But I have this error:
The system cannot find the path specified
Can you give a solution to fix it?
Solution
If it's already in the classpath, then just obtain it from the classpath instead of from the disk file system. Don't fiddle with relative paths in java.io.File
. They are dependent on the current working directory over which you have totally no control from inside the Java code.
Assuming that ListStopWords.txt
is in the same package as your FileLoader
class, then do:
URL url = getClass().getResource("ListStopWords.txt");
File file = new File(url.getPath());
Or if all you're ultimately after is actually an InputStream
of it:
InputStream input = getClass().getResourceAsStream("ListStopWords.txt");
This is certainly preferred over creating a new File()
because the url
may not necessarily represent a disk file system path, but it could also represent virtual file system path (which may happen when the JAR is expanded into memory instead of into a temp folder on disk file system) or even a network path which are both not per definition digestable by File
constructor.
If the file is -as the package name hints- is actually a fullworthy properties file (containing key=value
lines) with just the "wrong" extension, then you could feed the InputStream
immediately to the load()
method.
Properties properties = new Properties();
properties.load(getClass().getResourceAsStream("ListStopWords.txt"));
Note: when you're trying to access it from inside static
context, then use FileLoader.class
(or whatever YourClass.class
) instead of getClass()
in above examples.
Answered By - BalusC
Answer Checked By - Mary Flores (JavaFixing Volunteer)