將文件夾及其文件複製到其他位置

Question

我想將F：\ test複製到文件夾F：\ 123，以便我具有文件夾F：\ 123 \ test。

在測試文件夾我哈瓦2個文件：輸入和output.java 但我不能這樣做，埃羅是：˚F\ 123 \測試\ output.java（系統找不到指定的路徑）

這裏是我的代碼：

Constant.fromPath = "F:\\test" 
    Constant.toPath = "F\\123\\test"; 
    File source = new File(Constant.fromPath); 
    File destination = new File(Constant.toPath); 

    try 
    { 
     copyFolder(source, destination); 

    } 
    catch(Exception ex) 
    { 
     System.out.println(ex.getMessage()); 
    } 

這裏是copyFolder功能

public static void copyFolder(File srcFolder, File destFolder) throws IOException 
{ 
    if (srcFolder.isDirectory()) 
    { 
     if (! destFolder.exists()) 
     { 
      destFolder.mkdir(); 
     } 

     String[] oChildren = srcFolder.list(); 
     for (int i=0; i < oChildren.length; i++) 
     { 
      copyFolder(new File(srcFolder, oChildren[i]), new File(destFolder, oChildren[i])); 
     } 
    } 
    else 
    { 
     if(destFolder.isDirectory()) 
     { 
      copyFile(srcFolder, new File(destFolder, srcFolder.getName())); 
     } 
     else 
     { 
      copyFile(srcFolder, destFolder); 
     } 
    } 
} 

public static void copyFile(File srcFile, File destFile) throws IOException 
{ 
     InputStream oInStream = new FileInputStream(srcFile); 
     OutputStream oOutStream = new FileOutputStream(destFile); 

     // Transfer bytes from in to out 
     byte[] oBytes = new byte[1024]; 
     int nLength; 
     BufferedInputStream oBuffInputStream = new BufferedInputStream(oInStream); 
     while ((nLength = oBuffInputStream.read(oBytes)) > 0) 
     { 
      oOutStream.write(oBytes, 0, nLength); 
     } 
     oInStream.close(); 
     oOutStream.close(); 
} 

請幫助我解決我的錯誤。

Answer 1

Constant.toPath = "F\\123\\test";應該Constant.toPath = "F:\\123\\test";

Answer 2

你可能想看看Apache Commons FileUtils，具體的各種copyDirectory()方法。它會爲你節省很多像上面那樣煩人的代碼。