package com.nick.IO;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

/**
 * 練習：複製資料夾下的所有內容到另一個資料夾中（程式碼建立目標資料夾）
 * e:\\io中的內容複製到d:\\io（程式碼建立）下
 * 
 * 基本思路
 * 1、動態生成目的資料夾的名字
 * 2、動態生成資料夾中的內容
 * 3、別把各種變數名弄混
 * 
 
@author nickY
 *
 */
public class CopyTest2 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        copyDir(new File("e:\\io"), new File("d:\\"));
    }
    
    public static void copyDir(File src, File dest) {
        String srcFolderName = src.getName(); //得到io
 

        
        File destFolderName = new File(dest, srcFolderName);
        //System.out.println(destFileName.getPath());
        destFolderName.mkdirs(); //在d盤下建立了名為io的資料夾
        
        //遍歷原始檔夾中的檔案
        File[] srcFilesNames = src.listFiles();
        
        for (File srcFileName : srcFilesNames) {
            
 
//System.out.println(file); 帶路徑的檔案
            String fileName = srcFileName.getName(); //檔名
            File destFilesNames = new File(destFolderName, fileName); //在目標資料夾下建立File物件
            //進行復制
            copyFile(srcFileName, destFilesNames);
        }
        
    }

    private static void copyFile(File srcFileName, File destFilesNames) {
        // TODO Auto-generated method stub
        BufferedInputStream bufferedInputStream = null;
        BufferedOutputStream bufferedOutputStream = null;
        try {
            FileInputStream fileInputStream = new FileInputStream(srcFileName);
            FileOutputStream fileOutputStream = new FileOutputStream(destFilesNames);
            bufferedInputStream = new BufferedInputStream(fileInputStream);
            bufferedOutputStream = new BufferedOutputStream(fileOutputStream);
            
            byte[] b = new byte[1024];
            int len = 0;
            while((len = bufferedInputStream.read(b)) != -1) {
                bufferedOutputStream.write(b, 0, len);
            }
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally {
            try {
                if(bufferedOutputStream != null) {
                    bufferedOutputStream.close();
                }
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            try {
                if(bufferedInputStream != null) {
                    bufferedInputStream.close();
                }
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        
        
    }

}