import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;public class zipDemo {public static void main(String[] args)  {try {//zipFolder("/home/hadoop/test";);unzip("/home/hadoop/mytest/test.zip","/home/hadoop/mytest/");} catch (IOException e) {e.printStackTrace();}}static void zipFolder(String _path) throws IOException{Path path = Paths.get(_path);String target = "/home/hadoop/mytest/test.zip";//String target = path.getParent() +"/" + path.getFileName() +".zip";/*System.out.println(path.getFileName());System.out.println(path.getRoot());System.out.println(path.getParent());System.out.println(target);   */ZipOutputStream zo = new ZipOutputStream(new FileOutputStream(target));zipFile(zo,path,"");zo.close();}static void zipFile(ZipOutputStream zo,Path _path,String parentpath) throws IOException{File _file = _path.toFile();if(_file.isFile()){byte[] buff = new byte[1024];FileInputStream fi = new FileInputStream(_file);int len;zo.putNextEntry(new ZipEntry(parentpath +"/" + _file.getName()));while((len=fi.read(buff))>0)zo.write(buff, 0, len);zo.closeEntry();fi.close();}if(_file.isDirectory()){if(_file.listFiles().length==0){zo.putNextEntry(new ZipEntry(parentpath.equals("")?_file.getName():parentpath + "/" + _file.getName() + "/"));}for(File __file : _file.listFiles())zipFile(zo,__file.toPath(),parentpath.equals("")?_file.getName():parentpath+ "/" + _file.getName());}}static void unzip(String path,String target) throws IOException{File targetfolder = new File(target);ZipInputStream zi = new ZipInputStream(new FileInputStream(path));ZipEntry ze = null;FileOutputStream fo = null;byte[] buff = new byte[1024];int len;while((ze =  zi.getNextEntry())!=null){File _file = new File(targetfolder,ze.getName());if(!_file.getParentFile().exists()) _file.getParentFile().mkdirs();if(ze.isDirectory()){_file.mkdir();}else //file{fo = new FileOutputStream(_file);while((len=zi.read(buff))>0) fo.write(buff, 0, len);fo.close();}zi.closeEntry();}        zi.close();}
}