Import Java.io.bufferedinputstream;import Java.io.bufferedoutputstream;import Java.io.file;import Java.io.fileoutputstream;import Java.io.ioexception;import Java.io.inputstream;import java.util.Enumeration;        Import Java.util.zip.zipentry;import Java.util.zip.zipexception;import Java.util.zip.zipfile;public class ZipUtil {        public static void Unzip (String zipfile) {//To unzip the file path to the filename "= ' new file ' (ZipFile);        if (!file.exists () | |!file.isfile ()) {return;        }//File current folder String BasePath = File.getparent ();        Buffer size int buffersize = 1024;        int count = 0;        Buffer byte[] buffer = new Byte[buffersize];            try {//zip file ZipFile zfile = new ZipFile (file);            Get all the elements in the zip package enumeration<zipentry> zips = (enumeration<zipentry>) zfile.entries (); Traverse all elements in the ZIP package while (zips.hasmoreelements ()) {//Get file ZipentRy entry = Zips.nextelement ();                File name String name = Entry.getname ();                The full path of the extracted file is String FilePath = basepath + file.separator + name;                    Handle the zip file containing the folder if (Entry.isdirectory ()) {System.out.println ("isdirectory");                    File path = new file (FilePath);                    if (!path.exists ()) {Path.mkdir ();                } continue;                }//Get compressed file input stream InputStream in = Zfile.getinputstream (entry);                Buffered input stream Bufferedinputstream bis = new Bufferedinputstream (in);                Buffered input stream Bufferedoutputstream bos = new Bufferedoutputstream (new FileOutputStream (FilePath)); Reads bytes from the input stream and writes to the output stream while (count = bis.read (buffer, 0, buffersize))! =-1) {Bos.wri                Te (buffer, 0, count);      }          Release resources Bos.flush ();                Bos.close ();                            Bos.close ();        }//Close file Zfile.close (); } catch (Zipexception e) {} catch (IOException e) {}} public static Voi    D main (string[] args) {ziputil.unzip ("E:\\pics.zip"); }}
Java Unzip zip file