package upload;

import java.io.BufferedInputStream;

import java.io.BufferedOutputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

/*

* 将c:\\a.doc的文件复制到d:\\a.doc

*/

public class Test {

public static void main(String[] args) throws Exception {

getInputStream("c://a.doc", "d://a.doc");

}

private static void getInputStream(String pathName,String copyName) throws FileNotFoundException, IOException{

File file = new File(pathName);

if(!file.exists()){

throw new RuntimeException("文件不存在");

}else{

getCopy(copyName, new BufferedInputStream(new FileInputStream(file)));

}

}

private static void getCopy(String copyName,BufferedInputStream bis) throws IOException {

BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(copyName));

BufferedInputStream biss=bis;

byte[] b = new byte[biss.available()];

int len = 0;

while((len=biss.read(b))!=-1){

bos.write(b, 0, len);

}

bos.close();

biss.close();

System.out.println(copyName+"复制成功！");

}

}