Copy a multi-level folder from C drive to the D drive

Class copywenjianjia{public static void Main (string[] args) throws Exception {//source folder                String yuan = "C:\\nimeizide";                Destination String Mudi = "D:\\nimeizide";                Establish the destination folder (new File (Mudi)). Mkdirs ();                Gets the current file or directory of the source folder file[] files = (new file (yuan)). Listfiles ();                                for (File file:files) {if (File.isdirectory ()) {                                String Yuandir = Yuan + "\ \" + File.getname ();                                String Mudidir = Mudi + "\ \" + File.getname ();                        Copy directory Copydir (Yuandir, Mudidir); } else {copyFile (file, new file (Mudi + "\ \"                        + File.getname ()));     }}}//Copy Folder   public static void Copydir (String yuandir, String mudidir) throws Exception {(new File (Mudidir)).                Mkdirs ();                file[] files = (new File (Yuandir)). Listfiles ();                                for (File file:files) {if (File.isfile ()) { File Yuanfile = file;//source file Mudifile = new file (new file (Mudidir). Getabs                                Olutepath () + "\ \" + file.getname ());                        CopyFile (Yuanfile, mudifile); } else {String YuanJia = yuandir + "\ \" + Fi                                Le.getname ();                                String Mudijia = mudidir + "\ \" + File.getname ();                        Copydir (YuanJia, Mudijia);     }}}//Copy file public static void CopyFile (file yuanfile, file mudifile) throws Exception    {Bufferedinputstream Buis = new Bufferedinputstream (New FileInputStream (Yuanfile.getabsolutefile ()));                Bufferedoutputstream buos = new Bufferedoutputstream (New FileOutputStream (Mudifile.getabsolutefile ()));                byte[] buf = new byte[1024];                int Len;                        while (len = Buis.read (BUF))! =-1) {buos.write (buf, 0, Len);                Buos.flush ();                } buis.close ();        Buos.close (); }}

　　

Copy a multi-level folder from C drive to the D drive