如何在创建线程返回后在Java线程超时？

import java.util.concurrent.*;

public class ThreadTimeoutExample {
    public static void main(String[] args) {
        ExecutorService executor = Executors.newSingleThreadExecutor();
        Future<String> future = executor.submit(new Callable<String>() {
            public String call() throws Exception {
                // 在这里编写需要在线程中执行的代码
                return "线程执行完成";
            }
        });

        try {
            String result = future.get(5, TimeUnit.SECONDS); // 设置超时时间为5秒
            System.out.println(result);
        } catch (InterruptedException e) {
            System.out.println("线程被中断");
        } catch (ExecutionException e) {
            System.out.println("线程执行出错");
        } catch (TimeoutException e) {
            System.out.println("线程超时");
            future.cancel(true); // 超时后取消任务
        }

        executor.shutdown();
    }
}