使用线程池与非线程池的区别-蒲公英云

使用线程池与非线程池的区别

末蓝、 2022-02-01 03:11 482阅读 0赞

我们编写一段示例代码，来验证下线程池与非线程池的区别：

//线程池和非线程池的区别
public class ThreadPool {

 public static int times = 100;//100,1000,10000  
 public static ArrayBlockingQueue arrayWorkQueue = new ArrayBlockingQueue(1000);  
 public static ExecutorService threadPool = new ThreadPoolExecutor(5, //corePoolSize线程池中核心线程数  
         10,  
         60,  
         TimeUnit.SECONDS,  
         arrayWorkQueue,  
         new ThreadPoolExecutor.DiscardOldestPolicy()  
 );  
 public static void useThreadPool() \{  
     Long start = System.currentTimeMillis();  
     for (int i = 0; i < times; i++) \{  
         threadPool.execute(new Runnable() \{  
             public void run() \{  
                 System.out.println("说点什么吧...");  
             \}  
         \});  
     \}  
     threadPool.shutdown();  
     while (true) \{  
         if (threadPool.isTerminated()) \{  
             Long end = System.currentTimeMillis();  
             System.out.println(end - start);  
             break;  
         \}  
     \}  
 \}  
 public static void createNewThread() \{  
     Long start = System.currentTimeMillis();  
     for (int i = 0; i < times; i++) \{  
         new Thread() \{  
             public void run() \{  
                 System.out.println("说点什么吧...");  
             \}  
         \}.start();  
     \}  
     Long end = System.currentTimeMillis();  
     System.out.println(end - start);  
 \}  
 public static void main(String args\[\]) \{  
     createNewThread();  
     //useThreadPool();  
 \}