Decompress the zip and GZ files in the. NET environment.

In. NET 2.0, you can use sharpziplib, an open source DLL, to easily decompress ZIP files and GZ files.

You can download sharpziplib here.

 

The following describes the specific code:

1. Unzip the ZIP file:

Namespace: icsharpcode. sharpziplib. Zip

Private Static void uncompresszip (string file, string DIR) <br/>{< br/> try <br/>{< br/> If (! Directory. exists (DIR) <br/> directory. createdirectory (DIR); </P> <p> zipinputstream S = new zipinputstream (file. openread (File); </P> <p> zipentry theentry; <br/> while (theentry = S. getnextentry ())! = NULL) <br/>{< br/> string directoryname = path. getdirectoryname (theentry. name); <br/> string filename = path. getfilename (theentry. name); </P> <p> If (directoryname! = String. Empty) <br/> directory. createdirectory (DIR + directoryname); </P> <p> If (filename! = String. empty) <br/>{< br/> filestream streamwriter = file. create (DIR + theentry. name); </P> <p> int size = 2048; <br/> byte [] DATA = new byte [2048]; <br/> while (true) <br/>{< br/> size = S. read (data, 0, Data. length); <br/> If (size> 0) <br/>{< br/> streamwriter. write (data, 0, size); <br/>}< br/> else <br/>{< br/> break; <br/>}</P> <p> streamwriter. close (); <br/>}< br/> S. close (); <br/>}< br/> catch (exception ex) <br/>{< br/> console. writeline (ex. message); <br/>}< br/>}

Where:

File indicates the path and file name of the ZIP file.

Dir indicates the decompressed path.

 

2. Decompress GZ:

Namespace: icsharpcode. sharpziplib. Gzip

Private Static void uncompressgzip (string file, string DIR) <br/>{< br/> try <br/>{< br/> If (! Directory. exists (path. getdirectoryname (DIR) <br/> directory. createdirectory (path. getdirectoryname (DIR); </P> <p> gzipinputstream S = new gzipinputstream (file. openread (File); <br/> filestream streamwriter = file. create (DIR); </P> <p> int size = 2048; <br/> byte [] DATA = new byte [2048]; <br/> while (true) <br/>{< br/> size = S. read (data, 0, Data. length); <br/> If (size> 0) <br/>{< br/> streamwriter. write (data, 0, size); <br/>}< br/> else <br/>{< br/> break; <br/>}</P> <p> streamwriter. close (); <br/>}< br/> catch (exception ex) <br/>{< br/> console. writeline (ex. message); <br/>}< br/>} 

Where:

File indicates the path and file name of the GZ file.

Dir indicates the decompressed path and file name.

 

PS: in Windows NT, you can use the 7-zip tool to compress the file into the GZ format.