文件夹生成zip

package com.leoodata.utils;

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

/**
 * User: 杨永生
 * Date: 18:03 2018/4/11
 * Email: kevin@hiibook.com
 */
public class MkdirsZIP {

    public static void mkdirsToZIP(String URL) throws IOException {
        File file = new File(URL);
        ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(URL + ".zip"));
        if (file.isDirectory()) {
            File[] files = file.listFiles();
            for (int i = 0; i < files.length; i++) {
                BufferedInputStream bis = new BufferedInputStream(
                        new FileInputStream(
                                files[i]));
                zos.putNextEntry(new ZipEntry(file.getName()+ file.separator+ files[i].getName()));
                while (true) {
                    byte[] b = new byte[100];
                    int len = bis.read(b);
                    if (len == -1)
                        break;
                    zos.write(b, 0, len);
                }
                bis.close();
            }
        }
        zos.close();
    }

    public static void main(String[] args) {
        String url="E:\\HiibookIntellijProject\\svn2\\leoodata\\target\\leoodata\\static\\upload\\report\\2018_04_11_18_32_26_717";
        try {
            mkdirsToZIP(url);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}