package com.sean.base.threadStudy;

import org.apache.commons.io.FileUtils;

import java.io.File;
import java.io.IOException;
import java.net.URL;

/**
 * 练习Thread,实现多线程同步下载图片
 * @create 2021-02-27 11:06
 */
public class Demo02 extends Thread{

    private  String url;
    private  String name;
    
    public Demo02(String url,String name){
        this.url =url;
        this.name=name;
    }
    //下载图片线程的执行体
    @Override
    public void run() {
        WebDownloader webDownloader = new WebDownloader();
        webDownloader.downloader(url,name);
        System.out.println("下载了文件名为："+name);

    }

    public static void main(String[] args) {
        Demo02 d1 = new Demo02("https://wx2.sinaimg.cn/mw690/002mNrIZly1go19kmrox7j60ku0qvdlv02.jpg","20.jpg");
        Demo02 d2 = new Demo02("https://wx3.sinaimg.cn/mw690/006fdnrmgy1gnzyl0pmbyj31gi13dtm8.jpg","21.jpg");
        Demo02 d3 = new Demo02("https://wx2.sinaimg.cn/mw690/001UxQLbly1go15bowahwj60uk0zwgui02.jpg","22.jpg");

        d1.start();
        d2.start();
        d3.start();

    }
}

//下载器
class WebDownloader{
    //下载方法
    public  void downloader (String url,String name){
        try{
            FileUtils.copyURLToFile(new URL(url),new File(name));
        }catch (IOException e){
            e.printStackTrace();
            System.out.println("IO异常，download方法出现");
        }
    }
}