多线程继承Thread类

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多线程继承Thread类

1. package com.lening.thread;
   
   import lombok.SneakyThrows;
   import org.apache.commons.io.FileUtils;
   
   import java.io.File;
   import java.io.IOException;
   import java.net.MalformedURLException;
   import java.net.URL;
   
   /**
    * @Author WangEn
    * @CreateTime: 2021-04-07-11-29
    * @Emile: wen_5988@163.com
    */
   public class TestThread extends Thread {
       private String url;
       private String name;
   
       public TestThread(String url, String name) {
           this.url = url;
           this.name = name;
       }
   
       @SneakyThrows
       @Override
       public void run() {
           new UpDownLoad().upDownLoad(url,name);
           System.out.println("下载的图片名字是"+name);
       }
   
       public static void main(String[] args) {
           new TestThread("https://img1.baidu.com/it/u=1485012388,2380514454&fm=26&fmt=auto&gp=0.jpg","地球.jpg").start();
           new TestThread("https://img2.baidu.com/it/u=3355464299,584008140&fm=26&fmt=auto&gp=0.jpg","A梦.jpg").start();
           new TestThread("https://img1.baidu.com/it/u=2496571732,442429806&fm=26&fmt=auto&gp=0.jpg","水.jpg").start();
       }
   }
   
   
   /**
    * 下图工具类
    */
   class UpDownLoad{
       public void upDownLoad(String url,String name) throws MalformedURLException {
           try {
               FileUtils.copyURLToFile(new URL(url),new File(name));
           } catch (IOException e) {
               e.printStackTrace();
               System.out.println("图片下载失败");
           }
       }
   }
   

2.FileUtils是api开发下面的一个下载工具包

<dependency>
    <groupId>commons-io</groupId>
    <artifactId>commons-io</artifactId>
    <version>2.4</version>
</dependency>

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