import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

public class CopyTestDToE {

public static void main(String[] args) {

String DoldPath="D:\\a.jpg";

String EnewPath="E:\\"+System.nanoTime()+".jpg";

copyFile(DoldPath,EnewPath);

}

private static void copyFile(String DoldPath, String EnewPath) {

FileInputStream fis=null;

FileOutputStream fos=null;

try {

fis=new FileInputStream(new File(DoldPath));

fos=new FileOutputStream(new File(EnewPath));

byte[] bytes=new byte[1024];

int num=0;

while((num=fis.read(bytes))!=-1){

fos.write(bytes,0,num);

fos.flush();

}

System.out.println("复制完成");

} catch (FileNotFoundException e) {

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} finally{

try {

fos.close();

fis.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

}