ackage org.fh.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

/**
 * 說明：java壓縮成zip
 * 作者：FH Admin
 * from：fhadmin.cn
 */
public class FileZip {

    /**
     * @param inputFileName 你要壓縮的文件夾(整個完整路徑)
     * @param zipFileName 壓縮后的文件(整個完整路徑)
     * @throws Exception
     */
    public static Boolean zip(String inputFileName, String zipFileName) throws Exception {
        zip(zipFileName, new File(inputFileName));
        return true;
    }

    private static void zip(String zipFileName, File inputFile) throws Exception {
        ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFileName));
        zip(out, inputFile, "");
        out.flush();
        out.close();
    }

    private static void zip(ZipOutputStream out, File f, String base) throws Exception {
        if (f.isDirectory()) {
            File[] fl = f.listFiles();
            out.putNextEntry(new ZipEntry(base + "/"));
            base = base.length() == 0 ? "" : base + "/";
            for (int i = 0; i < fl.length; i++) {
                zip(out, fl[i], base + fl[i].getName());
            }
        } else {
            out.putNextEntry(new ZipEntry(base));
            FileInputStream in = new FileInputStream(f);
            int b;
            while ((b = in.read()) != -1) {
                out.write(b);
            }
            in.close();
        }
    }
    
     public static void main(String [] temp){       
         try {           
             zip("E:\\ftl","E:\\test.zip");//你要壓縮的文件夾      和  壓縮后的文件 
             }catch (Exception ex) {       
                 ex.printStackTrace();    
             }   
        }
}

/**
 * 解壓到指定目錄
 * @param zipPath
 * @param descDir
 * @author isea533
 */
 public static void unZipFiles(String zipPath,String descDir)throws IOException{
 unZipFiles(new File(zipPath), descDir);
 }
 /**
 * 解壓文件到指定目錄
 * @param zipFile
 * @param descDir
 * @author isea533
 */
 @SuppressWarnings("rawtypes")
 public static void unZipFiles(File zipFile,String descDir)throws IOException{
 File pathFile = new File(descDir);
 if(!pathFile.exists()){
  pathFile.mkdirs();
 }
 ZipFile zip = new ZipFile(zipFile);
 for(Enumeration entries = zip.getEntries();entries.hasMoreElements();){
  ZipEntry entry = (ZipEntry)entries.nextElement();
  String zipEntryName = entry.getName();
  InputStream in = zip.getInputStream(entry);
  String outPath = (descDir+zipEntryName).replaceAll("\\*", "/");;
  //判斷路徑是否存在,不存在則創(chuàng)建文件路徑
  File file = new File(outPath.substring(0, outPath.lastIndexOf('/')));
  if(!file.exists()){
  file.mkdirs();
  }
  //判斷文件全路徑是否為文件夾,如果是上面已經(jīng)上傳,不需要解壓
  if(new File(outPath).isDirectory()){
  continue;
  }
  //輸出文件路徑信息
  System.out.println(outPath);
  
  OutputStream out = new FileOutputStream(outPath);
  byte[] buf1 = new byte[1024];
  int len;
  while((len=in.read(buf1))>0){
  out.write(buf1,0,len);
  }
  in.close();
  out.close();
  }
 System.out.println("******************解壓完畢********************");
 }