UWP - nas network access denied

问题

I want to read some text files with extensions of .txt, .rtf and .log from a nas in my uwp app.

I have followed the instructions on this link, but there is still a "network access denied" error.

This is my Package.appxmanifest file.

EDIT

I use a FolderPicker to let the user choose the folder containing the log files, then I add that folder to FutureAccessList with a token.
I use the token in 1. to retrieve the folder, then read all the files in it.

Here is the relevant code.

public async static void locateLogsFolder()
{
    var folderPicker = new FolderPicker();
    folderPicker.FileTypeFilter.Add("*");
    folderPicker.SuggestedStartLocation = PickerLocationId.ComputerFolder;

    IStorageFolder folder = await folderPicker.PickSingleFolderAsync();
    if (folder != null)
    {
        // Add to MRU with metadata (For example, a string that represents the date)
        string mruToken = StorageApplicationPermissions.MostRecentlyUsedList.Add(folder);

        // Add to FA without metadata
        string faToken = StorageApplicationPermissions.FutureAccessList.Add(folder);

        // To open this worksheet file later
        ApplicationDataContainer localSettings = ApplicationData.Current.LocalSettings;
        localSettings.Values[logsFolderKey] = faToken;

        loadData();
    }
    else
    {
        // The file picker was dismissed with no file selected to save
    }
}

private static async Task<bool> loadLogFiles()
{
    ApplicationDataContainer localSettings = ApplicationData.Current.LocalSettings;
    if (localSettings.Values.ContainsKey(logsFolderKey))
    {
        string logsFolderPath = localSettings.Values[logsFolderKey].ToString();
        IStorageFolder logsFolder = await StorageApplicationPermissions.FutureAccessList.GetFolderAsync(logsFolderPath);
        logFiles = await logsFolder.GetFilesAsync();
        return true;
    }
    else
    {
        string message = "Logs folder has not been loaded successfully. \n"
                       + "Please locate the logs folder via the button on the upper left corner.";
        Utils.showMessage(message);
        return false;
    }
}

Besides, I can get the names of the log files, and when I want to read the contents of them, the error network access denied occurred.

NAS device information: QNAP TS-231P

Any suggestions are welcome, and I can surely provide more details if needed.

Besides, I am looking for a free nas server that I can upload an small sample to test my app, but I fail to find one. I would like to know where I can find it. I am also not sure whether I can ask this on stackoverflow. If it is inappropriate, please direct me where I can post it instead, thanks.

来源：https://stackoverflow.com/questions/46107831/uwp-nas-network-access-denied

标签

uwp

nas