网图下载

package com.pln.thread;
import org.apache.commons.io.FileUtils;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
public class TestThread2 extends Thread{
    private String url;
    private String name;
//    构造方法给私有的变量赋值
    public TestThread2(String url,String name){
        this.name = name;
        this.url = url;
    }
    @Override
    public void run() {
        WebDownLoader webDownLoader = new WebDownLoader();
        try {
            webDownLoader.downloader(url,name);
            System.out.println("下载名字为："+name);
        } catch (IOException e) {
            e.printStackTrace();
            System.out.println("run方法运行异常");
        }
    }
    public static void main(String[] args) {
//        调用带参的构造方法
        TestThread2 t1 = new TestThread2("http://www.mdjdx.cn/mdtpweb/upload/ew/uploadfile/f20196302356495401.jpg","1.jpg");
        TestThread2 t2 = new TestThread2("http://www.mdjdx.cn/mdtpweb/upload/ew/uploadfile/f20196302342173219.jpg","2.jpg");
        TestThread2 t3 = new TestThread2("http://www.mdjdx.cn/mdtpweb/upload/ew/uploadfile/f20198310114727.jpg","3.jpg");
        t1.start();//开启线程
        t2.start();
        t3.start();
    }
}
//下载器
class WebDownLoader{
//    下载方法
    public void downloader(String url,String name) throws IOException {
        FileUtils.copyURLToFile(new URL(url),new File(name));
    }
}