zip 解压缩

  public static void zipFile(FtpInfo ftp, String cbZipFileName, String cycleId, String ZipFilePath, String createFilePath) throws Exception {  isChartPathExist(ZipFilePath);  //压缩    String zipFileName = ZipFilePath + cbZipFileName ;  //创建zip输出流  ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFileName));
  //创建缓冲输出流  BufferedOutputStream bos = new BufferedOutputStream(out);
  File sourceFile = new File(createFilePath);
  //调用函数  compress(out, bos, sourceFile, sourceFile.getName());
  bos.close();  out.close();  logger.debug("end zip ...");    }


/** * compressed file * * @param out * @param bos * @param sourceFile * @param base * @throws Exception */public static void compress(ZipOutputStream out, BufferedOutputStream bos, File sourceFile, String base) throws Exception {  //如果路径为目录（文件夹）  if (sourceFile.isDirectory()) {
    //取出文件夹中的文件（或子文件夹）    File[] flist = sourceFile.listFiles();
    if (flist.length == 0)//如果文件夹为空，则只需在目的地zip文件中写入一个目录进入点    {      logger.debug(base + "/");      out.putNextEntry(new ZipEntry(base + "/"));    } else//如果文件夹不为空，则递归调用compress，文件夹中的每一个文件（或文件夹）进行压缩    {      for (int i = 0; i < flist.length; i++) {        compress(out, bos, flist[i], flist[i].getName());      }    }  } else//如果不是目录（文件夹），即为文件，则先写入目录进入点，之后将文件写入zip文件中  {    out.putNextEntry(new ZipEntry(base));
    try (        FileInputStream fos = new FileInputStream(sourceFile);        BufferedInputStream bis = new BufferedInputStream(fos);    ) {      int tag;      logger.debug(base);      //将源文件写入到zip文件中      while ((tag = bis.read()) != -1) {        bos.write(tag);      }    } catch (Exception e) {      logger.error("IO流异常");    }
  }}

/*** 解压到指定目录*/public static void unZipFiles(String zipPath,String descDir)throws IOException{  unZipFiles(new File(zipPath), descDir);}
/** * 解压文件到指定目录 */public static void unZipFiles(File zipFile,String descDir)throws IOException{  File pathFile = new File(descDir);  if(!pathFile.exists())  {    pathFile.mkdirs();  }  //解决zip文件中有中文目录或者中文文件  ZipFile zip = new ZipFile(zipFile, Charset.forName("GBK"));  for(Enumeration entries = zip.entries(); 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('s')));    //			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();}zip.close();System.out.println("解压完毕**");}

private static void isChartPathExist(String dirPath) {  File file = new File(dirPath);  if (!file.exists()) {    file.mkdirs();  }}

/**	 * 清理旧本地文件	 * @param date	 * @param 	 * @return	 */	public static boolean clearOldFile(String date, String downloadFilePath, String unZipDownloadFilePath ){			File localPath = new File(unZipDownloadFilePath);			File zipLocalPath = new File(downloadFilePath);
		File[] children = localPath.listFiles();		if (children == null) {		    logger.error("Children is null collections.");		    return false;		}		for (File child : children) {			if(child.isFile() && child.getName()!= null && child.getName().contains(date)){				child.delete();			}		}
		File[] zipChildren = zipLocalPath.listFiles();		if (zipChildren == null) {			logger.error("Children is null collections.");			return false;		}		for (File child : zipChildren) {			if(child.isFile() && child.getName()!= null && child.getName().contains(date)){				child.delete();			}		}
		return true;	}