用户上传压缩包BIZ文件，后台进行解析并进行数据处理，在此记录核心代码以便后续使用

/**
     * 将zip包解并进行解析
     *
     * @param zipInputStream zip输入流
     * @param toPath         需要解压的目标目录
     * @param info           info
     * @throws IOException IOException
     */
    private List<BizFile> unzip(InputStream zipInputStream, String toPath, BizIoMasterDto info) throws Exception {
        Path destDir = Paths.get(toPath);
        List<BizFile> fileNames = new ArrayList<>();
        List<IitImportAnalyseDto> errorList = new ArrayList<>();
        if (!Files.exists(destDir)) {
            Files.createDirectories(destDir);
        }
        byte[] buffer = new byte[1024];
        logger.info("sun.jnu.encoding:{}", Charset.forName(System.getProperty(Constant.WINDOWS_ENCODING)));
        ZipInputStream zis = new ZipInputStream(zipInputStream, Charset.forName(System.getProperty(Constant.WINDOWS_ENCODING)));
        ZipEntry zipEntry = zis.getNextEntry();
        if (zipEntry == null) {
            IitImportAnalyseDto errorDto = new IitImportAnalyseDto();
            errorDto.setFileName(info.getSrcFileName());
            errorDto.setErrorMsg(this.errorMsgMap.get("parsing_error").getI18nvalue());
            errorList.add(errorDto);
        }
        while (zipEntry != null) {
            Path destFile = destDir.resolve(zipEntry.getName());
            if (!zipEntry.isDirectory()) {
                BizFile toSave = new BizFile();
                String fileName = destFile.getFileName().toString();
                // 校验
                String errorMsg = this.validateFile(fileName);
                // 校验未通过
                if (StringUtils.isNotBlank(errorMsg)) {
                    IitImportAnalyseDto errorDto = new IitImportAnalyseDto();
                    errorDto.setFileName(fileName);
                    errorDto.setErrorMsg(errorMsg);
                    errorList.add(errorDto);
                } else {
                    // 文件拓展名
                    String fileSuffix = this.extName(fileName);
                    String uuid = UUID.randomUUID().toString();
                    toSave.setUuid(uuid);
                    toSave.setOldName(fileName);
                    toSave.setNewName(uuid + "." + fileSuffix);
                    toSave.setSuffix(fileSuffix);
                    fileNames.add(toSave);
                    try (FileOutputStream fos = new FileOutputStream(new File(toPath + File.separator + toSave.getNewName()))) {
                        int len;
                        while ((len = zis.read(buffer)) > 0) {
                            fos.write(buffer, 0, len);
                        }
                    }
                }
            }
            zipEntry = zis.getNextEntry();
        }
        zis.closeEntry();
        zis.close();
        info.setImportErrorList(errorList);
        return fileNames;
    }