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1. File Path In For Java
2. File Path In For Java Programming
3. File Path In For Java 8
4. File Path In For Java Tutorial

The java.io.File class has three methods — getPath, getAbsolutePath and getCanonicalPath — to obtain the filesystem path. In this article, we'll have a quick look at the differences between them and discuss a use case where you may choose to use one over the others. Here we will see how to convert Path to File in java. How to convert Path to File? The Java Path interface provides to. methods to convert Path - File. Path.toFile: The Path.toFile converts java.nio.file.Path to java.io.File. Java.nio.file.Path Class The Path class forms part of the NIO2 update, which came to Java with version 7. It delivers an entirely new API to work with I/O. Moreover, like the legacy File class, Path also creates an object that may be used to locate a file in a file system.

I am trying to get a path to a Resource but I have had no luck.

This works (both in IDE and with the JAR) but this way I can’t get a path to a file, only the file contents:

If I do this:

The result is:
java.io.FileNotFoundException: file:/path/to/jarfile/bot.jar!/config/netclient.p (No such file or directory)

Is there a way to get a path to a resource file?

This is deliberate. The contents of the “file” may not be available as a file. Remember you are dealing with classes and resources that may be part of a JAR file or other kind of resource. The classloader does not have to provide a file handle to the resource, for example the jar file may not have been expanded into individual files in the file system.

Anything you can do by getting a java.io.File could be done by copying the stream out into a temporary file and doing the same, if a java.io.File is absolutely necessary.

When loading a resource make sure you notice the difference between:

and

I guess, this confusion is causing most of problems when loading a resource. When you’re loading an image it’s easier to use getResourceAsStream():

When you really have to load a (non-image) file from a JAR archive, you might try this:

I spent a while messing around with this problem, because no solution I found actually worked, strangely enough! The working directory is frequently not the directory of the JAR, especially if a JAR (or any program, for that matter) is run from the Start Menu under Windows. So here is what I did, and it works for .class files run from outside a JAR just as well as it works for a JAR. (I only tested it under Windows 7.)

The one line answer is –

Basically getResource method gives the URL.
From this URL you can extract the path by calling toExternalForm()

References:

getResource(),
toExternalForm()

if netclient.p is inside a JAR file, it won’t have a path because that file is located inside other file. in that case, the best path you can have is really file:/path/to/jarfile/bot.jar!/config/netclient.p.

You need to understand the path within the jar file.
Simply refer to it relative. So if you have a file (myfile.txt), located in foo.jar under the srcmainresources directory (maven style). You would refer to it like:

If you dump your jar using jar -tvf myjar.jar you will see the output and the relative path within the jar file, and use the FORWARD SLASHES.

A File is an abstraction for a file in a filesystem, and the filesystems don’t know anything about what are the contents of a JAR.

Try with an URI, I think there’s a jar:// protocol that might be useful for your purpouses.

This is same code from user Tombart with stream flush and close to avoid incomplete temporary file content copy from jar resource and to have unique temp file names.

In my case, I have used a URL object instead Path.

File

Resource in classpath using classloader

File Path In For Java

When I need to read the content, I can use the following code:

And you can access the content using an InputStream.

This is, at it has been stated, not the optimal way to load resources, but if you absolutely must have a java.io.File reference, then try following:

This gives you a java.net.URL and it can be used in a java.io.File constructor.

The following path worked for me: classpath:/path/to/resource/in/jar

Getting this from getSystemResourceAsStream is the best option. By getting the inputstream rather than the file or the URL, works in a JAR file and as stand alone.

When in a jar file, the resource is located absolutely in the package hierarchy (not file system hierarchy). So if you have class com.example.Sweet loading a resource named “./default.conf” then the resource’s name is specified as “/com/example/default.conf”.

But if it’s in a jar then it’s not a File …

Inside your ressources folder (java/main/resources) of your jar add your file (we assume that you have added an xml file named imports.xml), after that you inject ResourceLoader if you use spring like bellow

inside tour function write the bellow code in order to load file:

Tags: file, java

How Do I Make Cross-Platform File Paths in Java?

— java, code, quality — 1 min read

Let's assume our Java application needs to write to a file at the followinglocations -

• ~/my/app/dir on *nix
• ~myappdir on Windows

Despite Java's 'write once, run anywhere' original sales pitch,many Java projects are developed, tested, and deployed exclusively on one platform.Often someone discovers they'd have a wider market if they sold their app to*nix and Windows users. Depending on details like how file paths have beenconstructed, going cross-platform can either be no big deal, or take days ofexpensive development time.

Before writing to a directory, we'll check if that directory exists. Here aresome common ways to do just that.

1.7+ JDK Paths - OK

File Path In For Java Programming

If you're on Java 7 or later, you've got access to the java.nio.file.Pathsandjava.nio.file.Files classes.

Pre-1.7 JDK Paths - OK

Prior to Java 7 we didn't have the nice helper classes above. Instead we have toconcatenate a string, which is made easier if you're using a library likeApache Commons Langor Google's Guava.

Hardcoded Unix Paths - OK

Torchlight 2 item codes. I was surprised to find out that Unix path characters seem to just work (thanks to StackOverflow user EJP'sexperience).This leaves me feeling a little uneasy, especially if your goal is to deploy tomultiple platforms and implementations of the JDK.

File Path In For Java 8

Hardcoded Windows Paths - NO

File Path In For Java Tutorial

If the one platform you're developing, testing, and deploying on is Windows, thisis probably a familiar sight. Unfortunately, this is the code that will require abunch of String changes and lots of subsequent testing.