Spring Boot REST API - 请求超时? [英] Spring Boot REST API - request timeout?

问题描述

我有一个 Spring Boot REST 服务，它有时会在请求中调用第三方服务.我想为我的所有资源设置一个超时(假设为 5 秒)，以便如果任何请求处理(整个链，从传入到响应)花费的时间超过 5 秒，我的控制器将使用 HTTP 503 而不是实际响应进行响应.如果这只是一个 Spring 属性，那就太棒了，例如设置

I have a Spring Boot REST service that sometimes call third party services as a part of a request. I would like to set a timeout on all my resources (let's say 5 seconds), so that if any request handling (the whole chain, from incoming to response) takes longer than 5 seconds my controllers responds with HTTP 503 instead of the actual response. It would be awesome if this was just a Spring property, for example setting

spring.mvc.async.request-timeout=5000

但我对此没有任何运气.我也试过扩展 WebMvcConfigurationSupport 和覆盖 configureAsyncSupport:

but I haven't had any luck with that. I've also tried extending WebMvcConfigurationSupport and overriding configureAsyncSupport:

@Override
public void configureAsyncSupport(final AsyncSupportConfigurer configurer) {
    configurer.setDefaultTimeout(5000);
    configurer.registerCallableInterceptors(timeoutInterceptor());
}

@Bean
public TimeoutCallableProcessingInterceptor timeoutInterceptor() {
    return new TimeoutCallableProcessingInterceptor();
}

运气不好.

我怀疑我必须手动为所有第三方调用计时，如果它们花费的时间太长，则抛出超时异常.那正确吗?或者是否有任何更简单、全面的解决方案来涵盖我的所有请求端点?

I suspect I have to manually time all my third party calls, and if they take too long, throw a timeout exception. Is that right? Or is there any easier, holistic solution that covers all my request endpoints?

推荐答案

如果你想要 spring.mvc.async.request-timeout=5000 你需要返回一个 Callable<> 开始工作.

You need to return a Callable<> if you want spring.mvc.async.request-timeout=5000 to work.

@RequestMapping(method = RequestMethod.GET)
public Callable<String> getFoobar() throws InterruptedException {
    return new Callable<String>() {
        @Override
        public String call() throws Exception {
            Thread.sleep(8000); //this will cause a timeout
            return "foobar";
        }
    };
}

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