Java文件分割

package FileDemo;

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

public class SpliteFilesDemo {

    private static final int size = 1024*1024;

    /**
     * @param args
     * @throws IOException 
     */
    public static void main(String[] args) throws IOException {

        File file=new File("D:\KwDownload\song\0.mp3");
        splitFile(file);
    }

    private static void splitFile(File file) throws IOException {//
        //用读取流关联源文件
        FileInputStream fis=new FileInputStream(file);
        //创建一个1M的缓冲区
        byte buf[]=new byte[size];
        //创建目的
        FileOutputStream fos=null;
        File destFile=new File("D:\destFile");
        if(!destFile.exists()){
            destFile.mkdirs();
        }
        int len=0;
        int count=1;
        while((len=fis.read(buf))!=-1){
            fos=new FileOutputStream(new File(destFile, (count++)+".part"));
            fos.write(buf,0,len);
        }
        fos.close();
        fis.close();
    }

}