package com.heima.exception;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Scanner;
public class test1 {
/**
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException {
File file = getFile(); //获取文件
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file.getName()));
int b;
while((b = bis.read()) != -1) {
bos.write(b);
}
bis.close();
bos.close();
}
/*
* 定义一个方法获取键盘录入的文件路径,并封装成File对象返回
* 1,返回值类型File
* 2,参数列表无
*/
public static File getFile() {
Scanner sc = new Scanner(System.in); //创建键盘录入对象
System.out.println("请输入一个文件的路径:");
while(true) {
String line = sc.nextLine(); //接收键盘录入的路径
File file = new File(line); //封装成File对象,并对其进行判断
if(!file.exists()) {
System.out.println("您录入的文件路径不存在,请重新录入:");
}else if(file.isDirectory()) {
System.out.println("您录入的是文件夹路径,请重新录入:");
}else {
return file;
}
}
}
}
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