URI is not hierarchical

[Abs]

Hi!

I have a problem with the following line of code. Java gives me a "URI
is not hierarchical" error.

File sourceFile = new File(new
URI(this.getClass().getClassLoader().getResource("images/previous.gif").toString()));

Is there any other way to create this file ?


Thanks

 

[pfalstad]

What are you trying to do? The resource isn't a file, it's just a
stream of data in the jar file. You can create the File object by just
taking the return value from getResource() and calling the File
constructor with that URL object. But you can't do anything useful
with the File object because it's not a real file. If you want to read
the data from the resource, use getResourceAsStream() instead of
getResource() and then read the data from the resulting InputStream.

 

[Abs]

En/na (e-mail address removed) ha escrit:

What are you trying to do? The resource isn't a file, it's just a
stream of data in the jar file. You can create the File object by just
taking the return value from getResource() and calling the File
constructor with that URL object. But you can't do anything useful
with the File object because it's not a real file. If you want to read
the data from the resource, use getResourceAsStream() instead of
getResource() and then read the data from the resulting InputStream.

try {
File sourceFile = new File(new
URI(this.getClass().getClassLoader().getResource("images/previous.gif").toString()));
File targetFile = new File(file,sourceFile.getName());
copyFile(sourceFile,targetFile);
} catch (URISyntaxException e) {
e.printStackTrace();
}

I want to copy some image files from my app jar to a location of choice,
to build a HTML gallery.

 

[John C. Bollinger]

En/na (e-mail address removed) ha escrit:


try {
File sourceFile = new File(new
URI(this.getClass().getClassLoader().getResource("images/previous.gif").toString()));

File targetFile = new File(file,sourceFile.getName());
copyFile(sourceFile,targetFile);
} catch (URISyntaxException e) {
e.printStackTrace();
}

I want to copy some image files from my app jar to a location of choice,
to build a HTML gallery.

Did you read the rest of pfalstad's response? Any File you might manage
to create in this way is unlikely to be useful to you anyway. To copy a
file from inside the jar to outside it you can, as pfalstad wrote, use
getResourceAsStream() to get an InputStream for reading the file
contents. Then create an output stream for writing the new file (which
you might do with use of a File object) and copy all the bytes from
input to output.


John Bollinger
(e-mail address removed)

 

[Abs]

Did you read the rest of pfalstad's response? Any File you might manage
to create in this way is unlikely to be useful to you anyway. To copy a
file from inside the jar to outside it you can, as pfalstad wrote, use
getResourceAsStream() to get an InputStream for reading the file
contents. Then create an output stream for writing the new file (which
you might do with use of a File object) and copy all the bytes from
input to output.

Thanks

 

[Tor Iver Wilhelmsen]

I want to copy some image files from my app jar to a location of choice,
to build a HTML gallery.

Then use getResourceAsStream() to get at the content, then a
FileOutputStream to write it.