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Extracting a Rar file

Posted on 2009-07-13
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1,649 Views
Last Modified: 2012-05-07
the idea is simple
i need to unrar/extract a .rar file

is  java can to do this? all i got i unzip a file, but i need to unrar
or is there any java library(free) for this extracting a rar file?

any link or tips will much appreciate

Thanks
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Question by:iphone
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13 Comments
 
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Accepted Solution

by:
CEHJ earned 250 total points
ID: 24837721
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LVL 92

Assisted Solution

by:objects
objects earned 250 total points
ID: 24837725
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Expert Comment

by:Seo_Expert
ID: 24837726
Hello,

You can check below url :

http://forums.sun.com/thread.jspa?threadID=5397113
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Author Comment

by:iphone
ID: 24837784
thanks for your guys fast response
let me check it out first 1 by 1


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Author Comment

by:iphone
ID: 24837918
@CEHJ
i have donwload chilkat and give it a try
but when i try to rum chilkat example from the link u gave me
it catching an exception in the first hand that the library failed to load
though i add the chilkat.jar into my libraries..
did i miss something?

@Object & seo_expert
i've been trying to search the API and sample code to unrar a file
i just cant found them..u have a simple sample to unrar the file using this Junrar

Thanks
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LVL 92

Expert Comment

by:objects
ID: 24837946
sure, I'll post an example of it usage shortly.
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Expert Comment

by:objects
ID: 24837989
               File f = new File(filename);
                Archive a = new Archive(f);
                a.getMainHeader().print();
                FileHeader fh = a.nextFileHeader();
                while(fh!=null){        
                        File out = new File(fh.getFileNameString().trim());
                        System.out.println(out.getAbsolutePath());
                        FileOutputStream os = new FileOutputStream(out);
                        a.extractFile(fh, os);
                        os.close();
                        fh=a.nextFileHeader();
                }
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LVL 86

Expert Comment

by:CEHJ
ID: 24838014
>>it catching an exception in the first hand that the library failed to load

You'll need to put the dll into java.library.path. You could just do


copy x.dll %WINDIR%

as an admin
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Expert Comment

by:objects
ID: 24838026
easier to just make a Runtime.exec() call :)   Always avoid native libs where possible makes your life as a java developer a lot simpler
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Expert Comment

by:CEHJ
ID: 24838035
>>easier to just make a Runtime.exec() call

To what?
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Author Comment

by:iphone
ID: 24838193
@object
i need aother library(common logging)
unless its return me an blocksize error.
anywaysThanks, your code works

@cehj
oh no wonder...i copy already and its work also

Thanks guys for yours response

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Expert Comment

by:CEHJ
ID: 24838208
:-)
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LVL 92

Expert Comment

by:objects
ID: 24838224
(-: another satisifed customer, you know where to find me if you need further help
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