java下载网络数据

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package com.network;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

/*
* 下载网络上的数据(图片，文件，视频)
*/
public class DownloadFile
{
   public static void download(String urlpath,String filename,String savepath)
   {
       try {
           URL url = new URL(urlpath);
           URLConnection conn= url.openConnection();
           conn.setConnectTimeout(5000);
           InputStream in = conn.getInputStream();
           File path = new File(savepath);
           if(!path.exists())
           {
               path.mkdirs();
           }
            OutputStream out = new FileOutputStream(path.getPath()+"\\"+filename);
           int len =0;
           byte[] b = new byte[2048];
           while((len=in.read(b))!=-1)
           {
               out.write(b, 0, len);
           }

          }
       catch (MalformedURLException e)
       {
           e.printStackTrace();
       } catch (IOException e)
       {

           e.printStackTrace();
       }
   }
   public static   void main(String[] args)
   {
       String path ="http://www.verydemo.com/demo_c98_i4648.html";
       String filename="myfile.html";
       String savepath = "d:/image";
       download(path,filename,savepath);
   }
}