请求超时处理

@RequestMapping("/test")
public DeferredResult<String> test() {
    DeferredResult<String> deferredResult = new DeferredResult<>(6000L); // 设置超时时间为6秒

    // 模拟长时间任务
    new Thread(() -> {
        try {
            Thread.sleep(10000); // 模拟10秒的任务
            deferredResult.setResult("Task completed");
        } catch (InterruptedException e) {
            deferredResult.setErrorResult("Task interrupted");
        }
    }).start();

    // 设置超时回调
    deferredResult.onTimeout(() -> {
        deferredResult.setErrorResult("Request timed out");
    });

    return deferredResult;
}