Java并发 - Executor Interface

java.util.concurrent.Executor接口是一个支持启动新任务的简单接口.

ExecutorService方法

Sr.No.	方法&说明
1	void execute(Runnable command) 将来某个时候执行给定的命令.

示例

以下TestThread程序显示了基于线程的环境中Executor接口的使用.

import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

public class TestThread {

   public static void main(final String[] arguments) throws InterruptedException {
      Executor executor = Executors.newCachedThreadPool();
      executor.execute(new Task());
      ThreadPoolExecutor pool = (ThreadPoolExecutor)executor;
      pool.shutdown();
   }  

   static class Task implements Runnable {
      
      public void run() {
         
         try {
            Long duration = (long) (Math.random() * 5);
            System.out.println("Running Task!");
            TimeUnit.SECONDS.sleep(duration);
            System.out.println("Task Completed");
         } catch (InterruptedException e) {
            e.printStackTrace();
         }
      }
   }
}

这将产生以下结果.

输出

Running Task!
Task Completed