java 方法超时

public void getcd() {
logger.info("任务开始！-------------------------------------");
final ExecutorService exec = Executors.newFixedThreadPool(1);
Callable<String> call = new Callable<String>() {
public String call() throws Exception {
  Thread.sleep(2000);

return "线程执行完成.";
}
};
try {
Future<String> future = exec.submit(call);
String obj = future.get(1000, TimeUnit.MILLISECONDS);  //1 秒
logger.info("任务成功返回:" + obj);
} catch (TimeoutException ex) {
logger.info("线程处理超时啦....");
ex.printStackTrace();
} catch (Exception e) {
logger.info("线程处理失败.");
e.printStackTrace();
}
logger.info("任务结束！-------------------------------------");
}