J250511/01-JavaSE阶段代码/J20250801/homework/Demo05.java

package J20250801.homework;

import java.util.Random;
import java.util.concurrent.*;

/**
 * @author WanJl
 * @version 1.0
 * @title Demo05
 * @description
 * @create 2025/8/1
 */
public class Demo05 {
    private static Random ran=new Random();
    public static void main(String[] args) {
        ExecutorService pool = Executors.newFixedThreadPool(3);
        try{
            //提交价格
            Future<Integer> priceFuture= pool.submit(() -> getPrice());
            //提交库存接口调用任务
            Future<Integer> stockFuture=pool.submit(()->getStock());
            //提交评价接口调用任务
            Future<Integer> commentFuture=pool.submit(()->getCommentCount());
            int price=priceFuture.get();
            int stock=stockFuture.get();
            int comment=commentFuture.get();
            System.out.printf("商品信息：价格= %d元，库存= %d件，评价= %d 条好评\n",price,stock,comment);
        }catch (Exception e){
            System.out.println("接口调用出现异常："+e.getMessage());
        }finally {
            //关闭线程池
            pool.shutdown();
            try {
                //等待10秒，10秒后强制关闭
                if (!pool.awaitTermination(10, TimeUnit.SECONDS)){
                    pool.shutdownNow();
                }
            } catch (InterruptedException e) {
                pool.shutdownNow();
            }
        }

    }

    public static Integer getPrice() throws InterruptedException {
        int processing = processing();
        int price=100+ran.nextInt(901);
        System.out.println("价格接口调用完成，返回："+price+"元，耗时"+processing/1000+"秒");
        return price;
    }
    public static Integer getStock() throws InterruptedException {
        int processing = processing();
        int stock=ran.nextInt(1001);
        System.out.println("库存接口调用完成，返回："+stock+"件，耗时"+processing/1000+"秒");
        return stock;
    }
    public static Integer getCommentCount()throws InterruptedException {
        int processing = processing();
        int commentCount=ran.nextInt(10001);
        System.out.println("评价接口调用完成，返回："+commentCount+"条好评，耗时"+processing/1000+"秒");
        return commentCount;
    }
    private static int processing() throws InterruptedException {
        int i = 1000 + ran.nextInt(2001);
        Thread.sleep(i);
        return i;
    }
}