"Go" Java unzip. Tar.z and. zip files

Extract. ZIP file

 PackageApp.qdupr.Method;ImportJava.io.File;ImportJava.io.FileOutputStream;Importjava.io.IOException;ImportJava.io.InputStream;Importjava.util.Enumeration;ImportOrg.apache.tools.zip.ZipEntry;ImportOrg.apache.tools.zip.ZipFile;/*** Zip file extraction *@authorAdministrator **/ Public classzipuncompress {Private Static intBufSize = 8096;//size of Byte   Public Static voidMain (string[] args)throwsException {String tmpfile= "C:\\users\\administrator\\desktop\\20151101.rar"; Zipuncompress.unzip (Tmpfile, tmpfile.substring (0, Tmpfile.lastindexof (".")))); // -----------------  System.out.println ("Usage:"); System.out.println ("Unzip: Java zipfileutils-unzip filename.zip");      System.out.println (); }    Public Staticstring UnZip (String unzipfilename, String destfilename) {File unzipfile=NewFile (unzipfilename); if(destFileName = =NULL|| Destfilename.trim (). Length () = = 0) {destFileName=unzipfile.getparent ();          } File DestFile; ZipFile ZipFile=NULL; Try{ZipFile=NewZipFile (Unzipfile, "GBK");  for(Enumeration entries =zipfile.getentries (); entries.hasmoreelements ();) {ZipEntry entry=(ZipEntry) entries.nextelement (); DestFile=NewFile (destFileName, Entry.getname ()); Unzipfile (DestFile, ZipFile, entry); //Perform decompression            }          } Catch(Exception e) {returnE.getmessage (); }          finally          {              Try              {                  assertZipFile! =NULL;              Zipfile.close (); } Catch(Exception e) {e.printstacktrace (); }          }          return NULL; }   Private Static voidUnzipfile (File destfile, ZipFile ZipFile, zipentry entry)throwsIOException {InputStream inputstream;          FileOutputStream fileout; if(Entry.isdirectory ())//is a directory, the creation of the{destfile.mkdirs (); }          Else //is a file        {              //if the parent directory of the specified file does not exist, it is created. File parent =Destfile.getparentfile (); if(Parent! =NULL&&!parent.exists ())              {Parent.mkdirs (); } InputStream=Zipfile.getinputstream (entry); Fileout=NewFileOutputStream (destfile); byte[] buf =New byte[BufSize]; intreadedbytes;  while((Readedbytes = Inputstream.read (buf)) > 0) {fileout.write (buf,0, readedbytes);                } fileout.close ();          Inputstream.close (); }      } }     

Unzip. TAR. Z File
Required Jar Pack commons-compress-1.7 and above

 PackageApp.qdupr.Method;ImportJava.io.BufferedInputStream;ImportJava.io.File;ImportJava.io.FileInputStream;ImportJava.io.FileOutputStream;Importjava.io.IOException;ImportOrg.apache.commons.compress.archivers.tar.TarArchiveEntry;ImportOrg.apache.commons.compress.archivers.tar.TarArchiveInputStream;ImportOrg.apache.commons.compress.compressors.z.zcompressorinputstream;/*** Automatic decompression. Z-formatted files *@authorAdministrator **/  Public classzcompress {/*** Test method *@paramargs*/ Public Static voidMain (string[] args) {zcompress zip=Newzcompress (); File dir=NewFile ("E:\\test"); File[] Subs=Dir.listfiles ();  for(File sub:subs) {String file=sub.getparent () +file.separator+Sub.getname ();      zip.uncompress (file);   System.out.println (file); }}  /*** Get all Files under folder *@paramfile*/ Public Static voidfindallfile (String file) {zcompress zip=Newzcompress (); File dir=Newfile (file); File[] Subs=Dir.listfiles ();  for(File sub:subs) {String NewFile=sub.getparent () +file.separator+Sub.getname ();   Zip.uncompress (NewFile); }}/** * . Z File extraction *@paramfile*/ Public  voiduncompress (String file) {//File File =new file ("e:\\bea20151101. Z ");zcompress.decompresstzfile (file);}/*** Convert String type to file type *@paramfile *@return */ Public Staticfile Decompresstzfile (String file) {returnDecompresszfile (Newfile);/*** Perform decompression *@paramfile *@return */Private Staticfile decompresszfile (file file) {intBufferSize = 2048; FileOutputStream out=NULL; Zcompressorinputstream ZIn=NULL;Try{fileinputstream fin=Newfileinputstream (file); Bufferedinputstream in=NewBufferedinputstream (Fin);//file storage path and filename after decompressionString name = File.getname (). substring (0, File.getname (). IndexOf (".")); File OutFile=NewFile ("e:\\file\\" +name); out=NewFileOutputStream (outFile); ZIn=NewZcompressorinputstream (in);Final byte[] buffer =New byte[buffersize];intn = 0; while( -1! = (n =zin.read (buffer))) {out.write (buffer,0, n);}returnOutFile;} Catch(Exception e) {e.printstacktrace ();return NULL;} finally {Try{out.close (); Zin.close ();}Catch(IOException e) {e.printstacktrace ();}}} /** * . Tar format File decompression *@paramfile*/Private Static voiddecompresstarfile (file file) {intBufferSize = 2048; String BasePath= File.getparent () +File.separator; Tararchiveinputstream is=NULL;Try{ is=NewTararchiveinputstream (Newfileinputstream (file)); while(true) {Tararchiveentry entry=is.getnexttarentry ();if(Entry = =NULL) { Break;}if(Entry.isdirectory ()) {//It doesn't seem to work here, it's a little different from zipentry.NewFile (BasePath +entry.getname ()). Mkdirs ();} Else{fileoutputstream OS=NULL;Try{File F=NewFile (BasePath +entry.getname ());if(!F.getparentfile (). exists ()) {F.getparentfile (). Mkdirs ();}if(!f.exists ()) {F.createnewfile ();} OS=NewFileOutputStream (f);byte[] bs =New byte[buffersize];intLen =-1; while(len = Is.read (BS))! =-1) {os.write (BS,0, Len);} Os.flush ();} Catch(Exception e) {e.printstacktrace ();}finally{os.close ();}}}} Catch(Exception e) {e.printstacktrace ();}finally {Try{is.close (); File.delete ();}Catch(IOException e) {e.printstacktrace ();}} } }

"Go" Java unzip. Tar.z and. zip files