package com.demo;

import java.io.BufferedInputStream;

import java.io.BufferedOutputStream;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

public class CopyFileDemo {

    public static void main(String[] args) {

        long beginTime = System.currentTimeMillis();

        copyFileBuffer();

        long endTime = System.currentTimeMillis();

        System.out.println("Buffered拷贝所花的时间："+(endTime-beginTime)+"毫秒");

        long beginTime1 = System.currentTimeMillis();

        copyFile();

        long endTime1 = System.currentTimeMillis();

        System.out.println("FileIn/Out拷贝所花的时间："+(endTime1-beginTime1)+"毫秒");

    }

    public static void copyFileBuffer(){

//        File file=  new File("G:/MP4视频");

//        file.mkdir();

        try {

            BufferedInputStream bin = new BufferedInputStream(new FileInputStream("G:/install/ISO/XLJS_GHOST_XP_SP3_FT_2.0.iso"));

            BufferedOutputStream bout = new BufferedOutputStream(new FileOutputStream("H:/TEST/1.iso"));

            byte[] bt = new byte[8192];

            int n=0;

            while ((n=bin.read(bt))!=-1) {

                bout.write(bt, 0, n);     

            }

            bout.flush();

            bin.close();

            bout.close();

        } catch (FileNotFoundException e) {

            e.printStackTrace();

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

    public static void copyFile(){

        try {

            FileInputStream fin = new FileInputStream("G:/install/ISO/XLJS_GHOST_XP_SP3_FT_2.0.iso");

            FileOutputStream  fout=new FileOutputStream("H:/TEST/2.iso");

            byte[]  by = new byte[8192];

            int len = 0;

            while ((len=fin.read(by))!=-1) {

                fout.write(by, 0, len);

            }

            fout.flush();

            fout.close();

            fin.close();

        } catch (FileNotFoundException e) {

            e.printStackTrace();

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

}