java 接口方法超时异常处理 设置超时时间

public class InterfaceTimeOut{
    public static void main(String args[]){
        final ExecutorService exec = Executors.newSingleThreadExecutor();
        Callable<String>  call = new Callable<String>(){
            @Ovrride
            public String call() throws Exception{
                Thread.sleep(1000 * 5);
                return "线程执行完";
            }
        };
 
        Future<String> future = exec.submit(call);
        String obj = null;
        try{
            obj = future.get(1000 * 6,TimeUnit.MILLISECONDS);
            System.out.print("任务成功返回"+obj);
        }catch(InterruptedException e){
            e.printStackTrace();
        }catch(ExecutionException e){
            e.printStackTrace();
        }catch(TimeoutException e){
            e.printStackTrace();
        }
        exec.shutdown();
    }
}