ExecutorService 接口是 Executor 接口的子接口，增加了管理生命周期的功能。参考以下示例。

import java.util.concurrent.ExecutorService;  
import java.util.concurrent.Executors;  
import java.util.concurrent.TimeUnit;  

public class TestThread {  
   public static void main(final String[] arguments) throws InterruptedException {  
      ExecutorService e = Executors.newSingleThreadExecutor();  

      try {  
         e.submit(new Thread());  
         System.out.println("Shutdown executor");  
         e.shutdown();  
         e.awaitTermination(5, TimeUnit.SECONDS);  
      } catch (InterruptedException ex) {  
         System.err.println("tasks interrupted");  
      } finally {  

         if (!e.isTerminated()) {  
            System.err.println("cancel non-finished tasks");  
         }  
         e.shutdownNow();  
         System.out.println("shutdown finished");  
      }  
   }  

   static class Task implements Runnable {  

      public void run() {  

         try {  
            Long duration = (long) (Math.random() * 20);  
            System.out.println("Running Task!");  
            TimeUnit.SECONDS.sleep(duration);  
         } catch (InterruptedException ex) {  
            ex.printStackTrace();  
         }  
      }  
   }         
}

运行结果：

Shutdown executor
shutdown finished