java中 压缩文件夹代码示例

一、代码来源：http://www.oracle.com/technetwork/articles/java/compress-1565076.html

二、方法：利用jdk 压缩文件夹

三、不足：压缩后的文件过大，于源文件夹大小无太大差异，期待更好的解决办法

四、代码：

import java.io.*;
import java.util.zip.*;

public class Zip {
   static final int BUFFER = 2048;
   static final String path="C:\\Users\\sino\\Downloads\\mb";       //要压缩的文件夹目录
   public static void main (String argv[]) {
      try {
         BufferedInputStream origin = null;
         FileOutputStream dest = new  FileOutputStream("C:\\Users\\sino\\Downloads\\mb233.zip");    //压缩后的文件夹目录
         GZIPOutputStream out = new GZIPOutputStream(new  BufferedOutputStream(dest));
         // out.setMethod(ZipOutputStream.DEFLATED);
         // out.setLevel(9);
         byte data[] = new byte[BUFFER];
         // get a list of files from current directory
         File f = new File(path);
         String files[] = f.list();

         for (int i=0; i<files.length; i++) {
            System.out.println("Adding: "+files[i]);
            FileInputStream fi = new  FileInputStream(path+File.separator+files[i]);
            origin = new   BufferedInputStream(fi, BUFFER);
           // ZipEntry entry = new ZipEntry(files[i]);     //存放遍历过的文件名称
           // entry.setMethod(ZipOutputStream.DEFLATED);
           // out.putNextEntry(entry);
            int count;
            while((count = origin.read(data, 0, 
              BUFFER)) != -1) {
               out.write(data, 0, count);
            }
            origin.close();
         }
         out.close();
      } catch(Exception e) {
         e.printStackTrace();
      }
   }
}