package com.example.server.utils;

import lombok.extern.slf4j.Slf4j;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

/**
 * @Author: WangNengShun
 * @Date:  2019年12月9日14:36:40
 *
 * 复制文件夹下所有文件到目录
 */
@Slf4j
public class MoveTotherFoldersUtils {

    public static void copyDir(String oldPath, String newPath) throws IOException {
        File file = new File(oldPath);
        //文件名称列表
        String[] filePath = file.list();
        if (!(new File(newPath)).exists()) {
            (new File(newPath)).mkdir();
        }
        for (int i = 0; i < filePath.length; i++) {
            if ((new File(oldPath + file.separator + filePath[i])).isDirectory()) {
                copyDir(oldPath  + file.separator  + filePath[i], newPath  + file.separator + filePath[i]);
            }

            if (new File(oldPath  + file.separator + filePath[i]).isFile()) {
                copyFile(oldPath + file.separator + filePath[i], newPath + file.separator + filePath[i]);
            }
        }
    }

    public static void copyFile(String oldPath, String newPath) throws IOException {
        File oldFile = new File(oldPath);
        File file = new File(newPath);
        FileInputStream in = new FileInputStream(oldFile);
        FileOutputStream out = new FileOutputStream(file);;
        byte[] buffer=new byte[1024];
        while((in.read(buffer)) != -1){
            out.write(buffer);
        }
        out.close();
        in.close();
    }

}