java中將文件夾里面的文件復制到指定的文件夾（java IO）

//現在制定路徑下創建名稱為左側的文件夾

public class Copy {

	public static void main(String[] args) {
		 //原始文件地址
        File srcFolder = new File("C:\\Users\\Pei\\Desktop\\測試復制");
        //原始文件名
        String srcFloderName = srcFolder.getName();
        System.out.println(srcFloderName);
        //要復制到的文件
        File desFolder = new File("C:\\Users\\Pei\\Desktop\\左側", srcFloderName);
        //如果要復制到的文件沒有這個文件夾，就創建一個
        if (!desFolder.exists()){
            desFolder.mkdir();
        }
        try {
			copyFolder(srcFolder,desFolder);
		} catch (IOException e) {
			
			e.printStackTrace();
		}

	}
	//復制文件夾
    private static void copyFolder(File srcFolder, File desFolder) throws IOException {
        //遍歷原始文件夾里面的所有文件及文件夾
        File[] files = srcFolder.listFiles();
        for (File srcFile : files) {
            //如果是文件夾
            if (srcFile.isDirectory()){
                //在新的文件夾內創建一個和srcFile文件夾同名文件夾，然后再遞歸調用，判斷文件夾里面的情況，然后做出相應處理
                String srcFileName = srcFile.getName();
                File newFolder = new File(desFolder, srcFileName);
                if (!newFolder.exists()){
                    newFolder.mkdir();
                    copyFolder(srcFile,newFolder);
                }
                //如果是文件
            }else {
                String srcFileName = srcFile.getName();
                File desFile = new File(desFolder, srcFileName);
                copyFile(srcFile,desFile);
            }

        }
    }
    
    //復制文件(這里復制文件如果看不懂的請看我另一篇博客[IO流詳解](https://blog.csdn.net/tannins_/article/details/99298995))
    private static void copyFile (File srcFile, File desFile) throws IOException {
        BufferedReader br = new BufferedReader((new InputStreamReader(new FileInputStream(srcFile),"utf-8")));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(desFile),"utf-8"));
        char[] chars = new char[1024];
        int len;
        while ((len = br.read(chars)) != -1) {
            bw.write(len);
            bw.flush();
        }
        br.close();
        bw.close();
    }