HarmonyOS 应用沙箱中的文件判断异常？

Question

在应用中下载了一个压缩文件，并解压到应用沙箱目录/data/storage/el2/base/haps/entry/files/subAppResource，通过Device File Brower可以看到解压后的文件夹，然后使用下面的代码去计算该文件夹下的所有文件大小。

static async getFileSize(path: string) {
  let totalSize: number = 0;
  try {
    const access = await fs.access(path);
    if (access) {
      const stat = await fs.stat(path);
      if (stat.isDirectory()) {
        const files = await fs.listFile(path, { recursion: true });
        for (let file of files) {
          const stat = await fs.stat(file);
          totalSize += stat.size;
        }
      } else {
        totalSize = stat.size;
      }
    }
  } catch (e) {
    console.error(e);
  }
  return totalSize;
}

调用上面方法的代码如下：

const subAppDir = `${this.context.filesDir}/subAppResource`;
const subAppSize: number = await AppFileUtils.getFileSize(subAppDir);

在执行fs.access方法时报错：

13900002 No such file or directory

Answer 1

参考示例如下：

async getFileSize(path: string) {
  let totalSize: number = 0;
  try {
    const access = await fs.access(path);
    if (access) {
      const stat = await fs.stat(path);
      if (stat.isDirectory()) {
        const files = await fs.listFile(path, { recursion: true });
        for (let file of files) {
          const stat = await fs.stat(path + file);
          totalSize += stat.size;
        }
      } else {
        totalSize = stat.size;
      }
    }
  } catch (e) {
    console.error(e);
  }
  return totalSize;
}

Answer 2

解决方案

参考示例：

async getFileSize(path: string) {
  let totalSize: number = 0;
  try {
    const access = await fs.access(path);
    if (access) {
      const stat = await fs.stat(path);
      if (stat.isDirectory()) {
        const files = await fs.listFile(path, { recursion: true });
        for (let file of files) {
          const stat = await fs.stat(path + file);
          totalSize += stat.size;
        }
      } else {
        totalSize = stat.size;
      }
    }
  } catch (e) {
    console.error(e);
  }
  return totalSize;
}