用java压缩文件夹/文件

压缩文件夹代码：
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class CompressBook {
public CompressBook() {}

    /**//*
    * inputFileName 输入一个文件夹
    * zipFileName 输出一个压缩文件夹
    */
    public void zip(String inputFileName) throws Exception {
        String zipFileName = "d:\\test.zip"; //打包后文件名字
        System.out.println(zipFileName);
        zip(zipFileName, new File(inputFileName));
    }

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

    private 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;
           System.out.println(base);
           while ( (b = in.read()) != -1) {
            out.write(b);
         }
         in.close();
       }
    }

    public static void main(String [] temp){
        CompressBook book = new CompressBook();
        try {
           book.zip("d:\\temp");//你要压缩的文件夹
        }catch (Exception ex) {
           ex.printStackTrace();
       }
    }

}


压缩文件代码：
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ZipOutputStreamTest {
public static void main(String[] args) throws Exception
    {
      File f = new File("d:\\note.txt");
      FileInputStream fis = new FileInputStream(f);
      BufferedInputStream bis = new BufferedInputStream(fis);
      byte[] buf = new byte[1024];
      int len;
      FileOutputStream fos = new FileOutputStream("d:\\note.zip");
      BufferedOutputStream bos = new BufferedOutputStream(fos);
      ZipOutputStream zos = new ZipOutputStream(bos);//压缩包
      ZipEntry ze = new ZipEntry(f.getName());//这是压缩包名里的文件名
      zos.putNextEntry(ze);//写入新的 ZIP 文件条目并将流定位到条目数据的开始处

      while((len=bis.read(buf))!=-1)
      {
         zos.write(buf,0,len);
         zos.flush();
      }
      bis.close();
      zos.close();
    }

}