HarmonyOS 鸿蒙Next怎么复制resources/rawfile目录下的mp3声音文件到沙箱目录下

参考

getMp3Test(){
    try {
      let array = this.context.resourceManager.getRawFileContentSync("test.mp3");
      // 获取应用文件路径
      let context = getContext(this) as common.UIAbilityContext;
      let filesDir = context.filesDir;
      let filePath = filesDir + '/test.mp3'
      console.log(`沙箱filePath的路径是:${filePath}`)

      // 新建并打开文件
      let file = fs.openSync(filePath, fs.OpenMode.READ_WRITE | fs.OpenMode.CREATE);
      //写入文件
      fs.writeSync(file.fd, array.buffer);
      // 关闭文件
      fs.closeSync(file);

      //转换地址,从沙箱获取解析一下
      //let uri = fileUri.getUriFromPath(filePath);
      //console.log('地址是：'+uri)
    } catch (error) {
      let code = (error as BusinessError).code;
      let message = (error as BusinessError).message;
      console.error(`getRawFileContentSync failed, error code: ${code}, message: ${message}.`);
    }
  }

获取音视频元数据：https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/avmetadataextractor-V5