java线程池开启多线程

  // //maximumPoolSize设置为2 ，拒绝策略为AbortPolic策略，直接抛出异常
            ThreadPoolExecutor pool = new ThreadPoolExecutor(5, 10, 1000000, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(20000), Executors.defaultThreadFactory(),new ThreadPoolExecutor.AbortPolicy());
            for(int i=0;i<3;i++) {  //10000
                Callable threadUserTask = new ThreadBankCardTestTask(i);
                Future<String> res = pool.submit(threadUserTask);//异步提交, non blocking.
              /*  synchronized(TaskLock.lockA){
                    if(StringUtils.isEmpty(res.get()))
                        System.out.println("开始执行sql脚本，i"+i);
                        jdbcTemplate.execute(res.get());
                    System.out.println("结束了执行sql脚本，i"+i);
                }
*/
                System.out.println("外部执行核心线程，i="+i);
            }