package com.charper01;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.*;
import java.util.concurrent.atomic.AtomicInteger;

public class Therad_Img  implements Runnable {

    //要爬的图片地址
    public static String URL="http://style.iis7.com/uploads/2021/08/09480440404.jpg";

    public static AtomicInteger count=new AtomicInteger(0);

    public static void main(String[] args) {

        Thread a=new Thread(new Therad_Img());
        Thread b=new Thread(new Therad_Img());
        Thread c=new Thread(new Therad_Img());

        a.start();
        b.start();
        c.start();
    }


    public void run() {

        Long start_time=System.currentTimeMillis();//开始时间

        while(count.getAndAdd(1)<100){
            System.err.println("这是第"+count.get()+"张图片");
            ImgThared(count.get());
        }

        Long end_time=System.currentTimeMillis();//结束时间

        System.err.println(end_time-start_time);
    }


    public void ImgThared(int imgName){

        try {

            URL url=new URL(URL);

            //连接
            URLConnection connection=url.openConnection();

            //获取链接资源内容
            InputStream inputStream=connection.getInputStream();

            //要存储的地方
            FileOutputStream outputStream=new FileOutputStream("C:\\Users\\HANNONG\\Desktop\\JavaImg\\"+imgName+".jpg");

            byte[] bytes=new byte[1024];

            while (inputStream.read(bytes)!=-1){
                outputStream.write(bytes);
            }

            outputStream.close();
            inputStream.close();

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

    }

}