java实现某一文件夹下所有文件与文件夹的复制

package com.zz.io;

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

public class FileCopyAndCut {
	public static void main (String[] args) throws IOException{
//		checkFiles("E:\\1");
		CopyDir("E:\\1","E:\\2");
//		CutFile("Z:\\1","Z:\\2");
	}
	
	public static void CopyDir(String filePath1,String filePath2) throws IOException{
		File f1 = new File(filePath1);
		File f2 = new File(filePath2);
		File[] fs = f1.listFiles();
		if(!f2.exists()) {
			f2.mkdir();
		}
		for(File temp:fs) {
			if(temp.isDirectory()) {
				CopyDir(filePath1+File.separator+temp.getName(),filePath2+File.separator+temp.getName());
			}
			if(temp.isFile()) {
				CopyFile(filePath1+File.separator+temp.getName(),filePath2+File.separator+temp.getName());
			}
		}
	}
	
	public static void CopyFile(String filePath1,String filePath2) throws IOException{
		File oldFile = new File(filePath1);
		File newFile = new File(filePath2);
		FileInputStream in = new FileInputStream(oldFile);
		FileOutputStream out = new FileOutputStream(newFile);
		byte[] b = new byte[(int)oldFile.length()];
		in.read(b);
		in.close();
		out.write(b);
		out.close();
	}
	
	public static void CutFile(String filePath1,String filePath2) throws IOException{
		File f1 = new File(filePath1);
		CopyDir(filePath1,filePath2);
		getDelete(f1);	
	}
	
	public static void getDelete(File f) {
		File[] fs = f.listFiles();
		if(fs!=null) {
			for(File f2:fs) {
				if(f2.isFile()) {
					f2.delete();
				}else if(f2.isDirectory()) {
					getDelete(f2);
					f2.delete();
				}
			}
		}
	}
}

复制文件中暂时只包含txt, 其中内容一并复制
效果图
复制

剪切