apache.commons.compress 压缩，解压详解编程语言

package my.test; 
import java.io.BufferedInputStream; 
import java.io.BufferedOutputStream; 
import java.io.File; 
import java.io.FileInputStream; 
import java.io.FileOutputStream; 
import java.io.IOException; 
import java.io.InputStream; 
import java.io.OutputStream; 
import java.util.ArrayList; 
import java.util.HashMap; 
import java.util.List; 
import java.util.Map; 
import org.apache.commons.compress.archivers.tar.TarArchiveEntry; 
import org.apache.commons.compress.archivers.tar.TarArchiveInputStream; 
import org.apache.commons.compress.archivers.zip.Zip64Mode; 
import org.apache.commons.compress.archivers.zip.ZipArchiveEntry; 
import org.apache.commons.compress.archivers.zip.ZipArchiveInputStream; 
import org.apache.commons.compress.archivers.zip.ZipArchiveOutputStream; 
import org.apache.commons.compress.compressors.bzip2.BZip2CompressorInputStream; 
import org.apache.commons.compress.compressors.gzip.GzipCompressorInputStream; 
import org.apache.commons.io.FilenameUtils; 
import org.apache.commons.io.IOUtils; 
import org.apache.commons.lang3.StringUtils; 
public class FileUtil { 
public static int BUFFER_SIZE = 2048; 
public static List<String> unZip(File zipfile, String destDir) 
throws Exception { 
if (StringUtils.isBlank(destDir)) { 
destDir = zipfile.getParent(); 
} 
destDir = destDir.endsWith(File.separator) ? destDir : destDir 
+ File.separator; 
ZipArchiveInputStream is = null; 
List<String> fileNames = new ArrayList<String>(); 
try { 
is = new ZipArchiveInputStream(new BufferedInputStream( 
new FileInputStream(zipfile), BUFFER_SIZE)); 
ZipArchiveEntry entry = null; 
while ((entry = is.getNextZipEntry()) != null) { 
fileNames.add(entry.getName()); 
if (entry.isDirectory()) { 
File directory = new File(destDir, entry.getName()); 
directory.mkdirs(); 
} else { 
OutputStream os = null; 
try { 
os = new BufferedOutputStream(new FileOutputStream( 
new File(destDir, entry.getName())), 
BUFFER_SIZE); 
IOUtils.copy(is, os); 
} finally { 
IOUtils.closeQuietly(os); 
} 
} 
} 
} catch (Exception e) { 
e.printStackTrace(); 
throw e; 
} finally { 
IOUtils.closeQuietly(is); 
} 
return fileNames; 
} 
public static List<String> unZip(String zipfile, String destDir) 
throws Exception { 
File zipFile = new File(zipfile); 
return unZip(zipFile, destDir); 
} 
public static void compressFiles2Zip(File[] files, String zipFilePath) { 
if (files != null && files.length > 0) { 
ZipArchiveOutputStream zaos = null; 
File f = new File(zipFilePath); 
if(f.isDirectory()) 
{ 
System.out.println("isDirectory"); 
return; 
} 
if(f.exists()) 
{ 
f.delete(); 
} 
try { 
File zipFile = new File(zipFilePath); 
zaos = new ZipArchiveOutputStream(zipFile); 
zaos.setUseZip64(Zip64Mode.AsNeeded); 
int index = 0; 
for (File file : files) { 
if (file != null) { 
ZipArchiveEntry zipArchiveEntry = new ZipArchiveEntry( 
file, new File(file.getParent()).getName()+File.separator+file.getName()); 
zaos.putArchiveEntry(zipArchiveEntry); 
InputStream is = null; 
try { 
is = new BufferedInputStream(new FileInputStream( 
file)); 
byte[] buffer = new byte[1024 * 5]; 
int len = -1; 
while ((len = is.read(buffer)) != -1) { 
// 把缓冲区的字节写入到ZipArchiveEntry 
zaos.write(buffer, 0, len); 
} 
// Writes all necessary data for this entry. 
                            zaos.closeArchiveEntry(); 
} catch (Exception e) { 
throw new RuntimeException(e); 
} finally { 
if (is != null) 
is.close(); 
} 
} 
} 
zaos.finish(); 
} catch (Exception e) { 
throw new RuntimeException(e); 
} finally { 
try { 
if (zaos != null) { 
zaos.close(); 
} 
} catch (IOException e) { 
throw new RuntimeException(e); 
} 
} 
} 
} 
public static void main(String[] args) throws Exception { 
String f  = "C:/20161202/notepad_cache/test/notepad_cache - 副本"; 
File file = new File(f); 
File[] files = new File[100]; 
int index = 0; 
for(String ff : file.list()) 
{ 
files[index++] = new File(f+File.separator+ff); 
} 
compressFiles2Zip(files, f+".zip"); 
/*         
String f  = "C:/20161202/notepad_cache/test/notepad_cache - 副本"; 
unZip(f+"1.zip", "C:/1202/notepad_cache/test/");*/ 
} 
}