Callable----实现多线程，测试未完成

import com.defend.demo01.TestTread;
import com.defend.demo01.WebDownLoader;

import java.util.concurrent.*;


/**
 * zuow
 * 多线程之Callable
 * 实现网络图片下载
 * 测试不成功，记录一下
 */
public class TestCallable implements Callable<Boolean> {
    //网络图片地址
    private String url;
    //保存的文件名
    private String name;

    public TestCallable(String url,String name){
        this.url = url;
        this.name = name;
    }

    //下载执行体
    @Override
    public Boolean call() {
       WebDownLoader webDownLoader = new WebDownLoader();
       webDownLoader.downLoader(url,name);
        System.out.println("下载的文件名为"+name);
        return true;
    }

    public static void main(String[] args) {
        TestTread testTread1 = new TestTread("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1595930373018&di=7da1188096ceb5201ef508ea00079f78&imgtype=0&src=http%3A%2F%2Fa2.att.hudong.com%2F36%2F48%2F19300001357258133412489354717.jpg", "name1.jpg");
        TestTread testTread2 = new TestTread("https://img-blog.csdnimg.cn/20200727213903548.png", "name2.png");
        TestTread testTread3 = new TestTread("https://img-blog.csdnimg.cn/20200727214012993.png", "name3.png");

        //开启一个服务的池子
        ExecutorService ser = Executors.newFixedThreadPool(3);
        //提交执行结果
        Future<?> result1 = ser.submit(testTread1);
        Future<?> result2 = ser.submit(testTread2);
        Future<?> result3 = ser.submit(testTread3);
        System.out.println("测试使用"+result1);
        try {
            Object r1 = result1.get();
            Object r2 = result2.get();
            Object r3 = result3.get();
            System.out.println(r1);
            System.out.println(r2);
            System.out.println(r3);
        } catch (InterruptedException e) {
            e.printStackTrace();
        } catch (ExecutionException e) {
            e.printStackTrace();
        }
        //关闭服务
        ser.shutdownNow();

    }


}