Java：将文件从一个目录复制/移动到另一个目录的安全方法

Question

We have a system where we are dealing with file operations, and in my case i would have to copy or move file(s) from one directory to another. Could anybody let me know a safe way to do this? For instance: lets say during the copy or move execution, if the system reboots, how do i ensure my operation executes gracefully. An example snippet would be very helpful.

Answer 1

You can use this way:

File fileFrom= new File("/FileDirectory");
Path FROM = Paths.get(fileFrom.getPath());
File fileTo= new File("/FileDirectory");
Path TO = Paths.get(fileTo.getPath());

        //sobreescribir el fichero de destino, si existe, y copiar los atributos, incluyendo los permisos rwx
        CopyOption[] options = new CopyOption[]{
            StandardCopyOption.REPLACE_EXISTING,
            StandardCopyOption.COPY_ATTRIBUTES
        };
        try {
            Files.copy(FROM, TO, options);
        } catch (FileNotFoundException ex) {
            System.out.println("Error1: " + ex.getMessage());
        } catch (IOException ex) {
            System.out.println("Error2: " + ex.getMessage());
        }