如何在Java中实现

Question

我想锁定特定文件夹，和我有代码，但“java.io.FileNotFoundException：（拒绝访问）”的文件夹锁发现错误

public class Folder_Lock { 

    public static void main(String[] args) { 

    FileLock lock = null; 
    FileChannel channel = null; 
     try { 
      // Get a file channel for the file 

      File file = new File("C:\\Users\\kaizen\\Desktop\\mani1"); 

      channel = new RandomAccessFile(file, "rw").getChannel(); 

      // Use the file channel to create a lock on the file. 
      // This method blocks until it can retrieve the lock. 
      lock = channel.lock(); 

      // Try acquiring the lock without blocking. This method returns 
      // null or throws an exception if the file is already locked. 
      try { 

       lock = channel.tryLock(); 

      } catch (OverlappingFileLockException e) { 

       // File is already locked in this thread or virtual machine 
      } 

      // Release the lock 


     } catch (FileNotFoundException e) { 
      e.printStackTrace(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } finally { 
      if (lock!=null) try { lock.release(); } catch (IOException e) { } 
      // Close the file 
      if (channel!=null) try { channel.close(); } catch (IOException e) { } 
     } 

    } 
} 

任何一个可以解决这一问题

Answer 1

尝试，因为在C-UR运行你的文件夹throught管理员或首次运行IDE作为管理和运行文件 ：/系统访问权限需要

Answer 2

您需要添加一个异常处理程序来处理例外。在

File file = new File("C:\\Users\\kaizen\\Desktop\\mani1.addExtension"); 

这将解决您的问题。