Java--多线程--练习Thread,实现多线程同步下载图片

多线程--练习Thread,实现多线程同步下载图片

package Thread.Demo01;

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
public class TestThread2 extends Thread{
    private String url; //网络图片地址
    private String name; //保存的文件名

    public TestThread2(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) {
        TestThread2 t1 = new TestThread2("https://sns-img-qc.xhscdn.com/d1362604-2cdc-37b3-c7dd-bf802f89f53d?imageView2/2/w/1920/format/webp|imageMogr2/strip\"","yyqx1.jpg");
        TestThread2 t2 = new TestThread2("https://sns-img-qc.xhscdn.com/d1362604-2cdc-37b3-c7dd-bf802f89f53d?imageView2/2/w/1920/format/webp|imageMogr2/strip\"","yyqx2.jpg");
        TestThread2 t3 = new TestThread2("https://sns-img-qc.xhscdn.com/d1362604-2cdc-37b3-c7dd-bf802f89f53d?imageView2/2/w/1920/format/webp|imageMogr2/strip\"","yyqx3.jpg");

        t1.start();
        t2.start();
        t3.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，downloader方法出现问题");
        }
    }
}

package Thread.Demo01;

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
public class TestThread2 extends Thread{
    private String url; //网络图片地址
    private String name; //保存的文件名

    public TestThread2(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) {
        TestThread2 t1 = new TestThread2("https://sns-img-qc.xhscdn.com/d1362604-2cdc-37b3-c7dd-bf802f89f53d?imageView2/2/w/1920/format/webp|imageMogr2/strip\"","yyqx1.jpg");
        TestThread2 t2 = new TestThread2("https://sns-img-qc.xhscdn.com/d1362604-2cdc-37b3-c7dd-bf802f89f53d?imageView2/2/w/1920/format/webp|imageMogr2/strip\"","yyqx2.jpg");
        TestThread2 t3 = new TestThread2("https://sns-img-qc.xhscdn.com/d1362604-2cdc-37b3-c7dd-bf802f89f53d?imageView2/2/w/1920/format/webp|imageMogr2/strip\"","yyqx3.jpg");

        t1.start();
        t2.start();
        t3.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，downloader方法出现问题");
        }
    }
}