spring-webflux

问题 I decided to rewrite my web app on Java(previously it was on Python). In my app I used no-blocking I/O, I had worker pool(Celery + Eventlet threads) where I pass tasks which consists of hundreds of API calls. Now I'm using Spring WebFlux but I can't understand how I can create a workers pool to pass my tasks to that pool, and after get results and do some calculations. (I know about possibility to create ThreadPoolTaskExecutor, but the threads are blocking threads) 回答1: If you're using non

问题 I decided to rewrite my web app on Java(previously it was on Python). In my app I used no-blocking I/O, I had worker pool(Celery + Eventlet threads) where I pass tasks which consists of hundreds of API calls. Now I'm using Spring WebFlux but I can't understand how I can create a workers pool to pass my tasks to that pool, and after get results and do some calculations. (I know about possibility to create ThreadPoolTaskExecutor, but the threads are blocking threads) 回答1: If you're using non

问题 I'm looking for a clarification on the bolded text in the statement below (I've provided the full paragraph for context only): The RestTemplate is not a good fit for use in non-blocking applications, and therefore Spring WebFlux application should always use the WebClient. The WebClient should also be preferred in Spring MVC , in most high concurrency scenarios, and for composing a sequence of remote, inter-dependent calls. Found here: https://docs.spring.io/spring/docs/current/spring

问题 There are two ways to expose HTTP endpoints in spring 5 now. @Controller or @RestController by making the controller's class, e.g. @RestController @RequestMapping("persons") public class PersonController { @Autowired private PersonRepo repo; @GetMapping("/{id}") public Mono<Person> personById(@PathVariable String id){ retrun repo.findById(id); } } Route in @Configuration class by using RouterFunctions: @Bean public RouterFunction<ServerResponse> personRoute(PersonRepo repo) { return route(GET

问题 I'm trying to configure spring-webflux WebClient (with reactor netty under the hood) with ssl and client hostname verification. I'm provided with javax.net.ssl.SSLContext, HostnameVerifier and a list of trusted hostnames (as string list). So far I've configured WebClient with my SSLContext, but I can't find a way to configure hostname verification. To state my problem: I have a set of trusted services hostnames (String list) and a HostnameVerifier. I want to configure my WebClient with it. Is

问题 When implementing interceptor with Servlet API I got HandlerMethod out of the box: ... extends HandlerInterceptorAdapter @Override public boolean preHandle(final HttpServletRequest request, final HttpServletResponse response, final Object handlerMethod) throws Exception { Can I get access to HandlerMethod while implementing WebFilter instead of HandlerInterceptorAdapter ? In case of WebFilter I have: ... implements WebFilter { public Mono<Void> filter(ServerWebExchange serverWebExchange,

问题 how can I create a redirect rest web service in spring WebFlux? It seems that there is no redirect functionality in WebFlux yet! I want something like this: @Bean RouterFunction<ServerResponse> monoRouterFunction() { return route(GET("/redirect/{id}"),{ req -> req.Redirect( fetchAUrlFromDataBase() ) }) 回答1: @Bean RouterFunction<ServerResponse> routerFunction() { route(GET("/redirect"), { req -> ServerResponse.temporaryRedirect(URI.create(TargetUrl)) .build() } }) } Thanks you very much Johan

问题 I have a question about Spring Reactive WebClient... Few days ago I decided to play with the new reactive stuff in Spring Framework and I made one small project for scraping data only for personal purposes. (making multiple requests to one webpage and combining the results). I started using the new reactive WebClient for making requests but the problem I found is that the client not emitting response for every request. Sounds strange. Here is what I did for fetching data: private Mono<String>

问题 I want to use Spring Security for JWT authentication. But it comes with default authentication. I am trying to disable it, but the old approach of doing this - disabling it through application.properties - is deprecated in 2.0. This is what I tried: @Configuration public class StackWebSecurityConfigurerAdapter extends WebSecurityConfigurerAdapter { @Override protected void configure(HttpSecurity http) throws Exception { http.httpBasic().disable(); // http.authorizeRequests().anyRequest()

问题 I'm trying to log a request using Spring 5 WebClient. Do you have any idea how could I achieve that? (I'm using Spring 5 and Spring boot 2) The code looks like this at the moment: try { return webClient.get().uri(url, urlParams).exchange().flatMap(response -> response.bodyToMono(Test.class)) .map(test -> xxx.set(test)); } catch (RestClientException e) { log.error("Cannot get counter from opus", e); throw e; } 回答1: You can easily do it using ExchangeFilterFunction Just add the custom