permissions

问题 I am trying to create a file into the same folder in my project, but I am not able to create that file dynamically. I am trying this: try { System.out.println("path"+System.getProperty("user.dir")); File file = new File("/textfile.txt"); file.createNewFile(); //file.createNewFile(); } catch (Exception e) { e.printStackTrace(); } What I am getting error is this: java.io.IOException: Permission denied Any suggestion will be welcomed. 回答1: To create a File into the same folder in your project,

问题 I'm developing an iOS app that gives users access to their OneDrive/SkyDrive and I've run into a very annoying issue: The very first time a user links the app to their OneDrive, everything goes as expected: They have to enter a user id and password Then they have to agree to let the app access their info Then they get to browse their OneDrive That's all good. But, if the app closes, and you try to access the OneDrive again, rather than skipping straight to #3, and being able to access the

问题 I am aware of this post :- Locking mechanism of Mifare Classic 1K However, it is really not clear - how a value like FF 07 80 FF is calculated in this string: D3 F7 D3 F7 D3 F7 FF 07 80 FF 00 00 00 00 00 00 This means that the blocks can be read with key A and written with Key B but does not allow inc/dec. How should the access bits look like if I have to support increment and decrement operations. I understand that C1, C2 and C3 must be 1,1,0 how does this reflect to the byte 6, 7 and 8. Any

问题 When I am debugging the app, everything works fine, but after I perform these commands: flutter clean flutter build apk flutter install The installed app is not working properly (Not loading data from API). Any ideas? pubspec.yaml: name: test_app description: A new Flutter project. https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html version: 1.0.0+1 environment: sdk: ">=2.1.0 <3.0.0" dependencies: flutter: sdk:

问题 After some play around with rooted devices, I got stuck on the files. Let's say we have a file somewhere in the root folder which I want to read/write from my application. The only way I found so far is changing the file permission like String [] cmd = { "su", "-c", "chmod", "777", path}; Process process = new ProcessBuilder(cmd).start(); process.waitFor(); This works fine, the problem is that I want to return back the original file permissions after I'm done with it. Can anybody help me with

问题 I am building Django REST as backend and Angular JS as front end. Now I have permissions systems very advanced as 3 level class UserSerializer(serializers.Serializer): email = serializers.EmailField() username = serializers.CharField(max_length=100) field1 = serializers.CharField(max_length=100) field2 = serializers.CharField(max_length=100) field3 = serializers.CharField(max_length=100) field4 = serializers.CharField(max_length=100) Now want permissions on User Role view READ / Write /

问题 I am trying to move a file, but gives this error: System.UnauthorizedAccessException: Access to the path is denied.. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.__Error.WinIOError() at System.IO.FileInfo.MoveTo(String destFileName) To move the file, I have this code: public void MssFile_Move (string ssPath, string ssDestinationDirectoryPath, string ssDomain, string ssUsername, string ssPassword, out string ssError_message) { IntPtr admin_token = IntPtr

问题 Is there any mechanism to get and set the file/directory permissions? For example, I want to show the permisssions of a file in a shell way: -rwxr-xr-- Is it possible to do this using Java? I know that there are some methods in the File class to know if the file canExecute , canRead and canWrite , but AFAIK this info is for the current user only. I need to know the whole octal number, for example 755, so I need to get it from the user, from group and from others. I know that Java7 brings

问题 I have a little problem when I mount a SMB shared folder from a Synology NAS. I want to mount a shared folder with permissions: git:root 700 But the mounted folder always have permission set to 777 ( even after a chmod 700 without error) In my /etc/fstab I used this line: #uid=999 ---> git user //server/folder /mnt/artifacts cifs username=windowsUser,password=xxxxx,gid=0,uid=999,file_mode=0700,dir_mode=0700,iocharset=utf8 0 0 Do you know why I cannot set my rights to 700 ? I did a mistake ?

问题 Can anyone help me fix the below error message I'm getting? I've finally got Symfony installed on a VM and it seems to be working ok except for the fact that I'm getting occasional messages for things like this: [1/2] ContextErrorException: Warning: SessionHandler::read(): open(/var/lib/php5/sess_d8qgvn11jdu8rfuo1f0njokc67, O_RDWR) failed: Permission denied (13) From what I've picked up from reading around, I'm thinking it's because I have a mismatch between the owner/permissions between