ZIP folder

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

public class ZIPfolder {
public ZIPfolder() {}

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

    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 + "/";
           //zip(out, f, base + f.getName());
           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();
       }
    }
}