Applet: how to write a file?
This thread is a continuation of this one, but another question: Applet: cannot read the file using getResource()I'm happy, signing the Applet resolved because I couldn't get the URL resource since the * .jar file.
Now, here's my question:
If I want to write/create a file on the computer running the cmdlet, the jvm throws an exception indicating that the path is incorrect, not found.
The server runs on Linux and the customers are mostly Windows XP/seven workstations.
(1) do I take care of separators leader for cross-platform issues? On Windows, the file separator is different from Linux/Mac OS, of course.
(2) how can I get the local directory by default on the client side?
(3) is that a good idea to map a "ramdisk" to avoid security checks associated with access to the local file system by the Applet to write/create/modify some files? The idea is to write on this virtual disk files rather than writing them to the local file system using FileOutputStream () - I only need 1 GB at most.
My first idea was to write in the * .jar file that I could take the resources OF the * .jar I expected that it was possible to put resources to the * .jar, but I was wrong.
As the Applet is run by the customer, this feature is not always possible.
Really, I don't know when an Applet is launched, at the file system level, there's an entry 'root' for any file system access (saving temporary data and so on...) and if this entry exists where it located at FMV.
I had to get the resource, then change it, save it and print it. Right now, I can get it, change it, but it can't save ^^
Thanks in advance for the future lights ^^
PS: it works if I do not specify a path in the name of the file, but I just wanted to know if it is possible to get the local file system path, to create a special file in it.
Published by: Hurukan on October 20, 2012 13:52
(1) do I take care of separators leader for cross-platform issues? On Windows, the file separator is different from Linux/Mac OS, of course.
I think that / works on any platform, but it is safer to use File.separator.
(2) how can I get the local directory by default on the client side?
New File("."). getAbsolutePath()
(3) is that a good idea to map a "ramdisk" to avoid security checks associated with access to the local file system by the Applet to write/create/modify some files? The idea is to write on this virtual disk files rather than writing them to the local file system using FileOutputStream () - I only need 1 GB at most.
N ° your applet is already signed, so you should be able to use the file system, that allow normal user rights (Windows). You have a few problems at the moment, but they can be solved.
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