package com.chauvet.utils;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.util.Enumeration;

import org.apache.tools.zip.ZipEntry;

import org.apache.tools.zip.ZipFile;

public class ZipUtils {

    /**

     * 解压到指定目录

     * @param zipPath

     * @param descDir

     * @author isea533

     */

    public static void unZipFiles(String zipPath,String descDir)throws IOException{

        unZipFiles(new File(zipPath), descDir);

    }

    /**

     * 解压文件到指定目录

     * @param zipFile

     * @param descDir

     * @author isea533

     */

    @SuppressWarnings("rawtypes")

    public static void unZipFiles(File zipFile,String descDir)throws IOException{

        File pathFile = new File(descDir);

        if(!pathFile.exists()){

            pathFile.mkdirs();

        }

        ZipFile zip = new ZipFile(zipFile);

        for(Enumeration entries = zip.getEntries();entries.hasMoreElements();){

            ZipEntry entry = (ZipEntry)entries.nextElement();

            String zipEntryName = entry.getName();

            InputStream in = zip.getInputStream(entry);

            String outPath = (descDir+zipEntryName).replaceAll("\\*", "/");;

            //判断路径是否存在,不存在则创建文件路径

            File file = new File(outPath.substring(0, outPath.lastIndexOf('/')));

            if(!file.exists()){

                file.mkdirs();

            }

            //判断文件全路径是否为文件夹,如果是上面已经上传,不需要解压

            if(new File(outPath).isDirectory()){

                continue;

            }

            //输出文件路径信息

            System.out.println(outPath);

            OutputStream out = new FileOutputStream(outPath);

            byte[] buf1 = new byte[1024];

            int len;

            while((len=in.read(buf1))>0){

                out.write(buf1,0,len);

            }

            in.close();

            out.close();

            }

        System.out.println("******************解压完毕********************");

    }

    public static void main(String[] args) {

        try {

            /**

             * 解压文件

             */

//            File zipFile = new File("F:/tesst.zip");

            File zipFile = new File("F:/tesst - 副本.zip");

            String path = "F:/tesst";

            unZipFiles(zipFile, path);

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

}