package com.github.FelixCJF.coding2017.coderising.download;
import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;
import com.github.FelixCJF.coding2017.coderising.download.api.Connection;
public class DownloadThread extends Thread{
Connection conn;
int startPos;
int endPos;
public DownloadThread( Connection conn, int startPos, int endPos){
this.conn = conn;
this.startPos = startPos;
this.endPos = endPos;
}
public void run(){
System.out.println("下载开始");
try {
byte[] buff = conn.read(startPos, endPos);
//创建一个可随机写入文件
RandomAccessFile randomAccessFile = new RandomAccessFile(new File("G:/"), "rwd");
randomAccessFile.seek(startPos);
randomAccessFile.write(buff, 0, buff.length);
randomAccessFile.close();
System.out.println("下载结束");
} catch (IOException e) {
e.printStackTrace();
}
}
}