java的压缩程序

上一篇放了一个解压缩的源代码，这次就放一个对应的压缩源代码。

package zip;

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

/**
 * @author webkkk
 *
 */
public class Zip {

 public void zip(String inputFileName, String outputFileName) throws Exception {
  ZipOutputStream out = new ZipOutputStream(new FileOutputStream(outputFileName));
  zip(out, new File(inputFileName), "");
  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();
   if (System.getProperty("os.name").startsWith("Windows")) {
    out.putNextEntry(new ZipEntry(base + "//"));
    base = base.length() == 0 ? "" : base + "//";
   } else {
    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[] args) {
  Zip m_zip = new Zip();
  try {
   m_zip.zip("c://test//11", "c://test//2005.zip");
  } catch (Exception ex) {
   ex.printStackTrace();
  }
 }
}