URL网络资源下载

package com.studying.JavaNet.DownloadWeb;

import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.io.FileOutputStream;
import java.net.URL;
import java.net.URLConnection;

public class download2 {

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

       //改成你想要的资源，啥都可
       URL url = new URL("http://localhost:8080/MasterXu/darkFile.txt");
       //连接
       HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
       //下载
       InputStream is = urlConnection.getInputStream();
       //下载位置
       FileOutputStream fos = new FileOutputStream("darkFile.txt");
       //读取
       byte[] buffer = new byte[1024];
       int len;
       while((len=is.read(buffer))!=-1)
       {
           fos.write(buffer,0,len);//写入数据
       }
       fos.close();
       is.close();
       urlConnection.disconnect();//断开连接
   }

}