相关疑难解决方法(0)

添加重试WebClient的所有请求

我们有一个服务器来检索OAUTH令牌,并且通过WebClient.filter方法将oauth令牌添加到每个请求中,例如

webClient
                .mutate()
                .filter((request, next) -> tokenProvider.getBearerToken()
                        .map(token -> ClientRequest.from(request)
                                .headers(httpHeaders -> httpHeaders.set("Bearer", token))
                                .build()).flatMap(next::exchange))
                .build();
TokenProvider.getBearerToken returns Mono<String> since it is a webclient request (this is cached)
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我想要重试功能,发生401错误,将使令牌无效并再次尝试请求,我这样工作

webClient.post()
            .uri(properties.getServiceRequestUrl())
            .contentType(MediaType.APPLICATION_JSON)
            .body(fromObject(createRequest))
            .retrieve()
            .bodyToMono(MyResponseObject.class)
            .retryWhen(retryOnceOn401(provider))

private Retry<Object> retryOnceOn401(TokenProvider tokenProvider) {
        return Retry.onlyIf(context -> context.exception() instanceof WebClientResponseException && ((WebClientResponseException) context.exception()).getStatusCode() == HttpStatus.UNAUTHORIZED)
                .doOnRetry(objectRetryContext -> tokenProvider.invalidate());
    }
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有没有办法将其移至webClient.mutate()..... build()函数?这样所有请求都将具有此重试功能?

我尝试添加作为过滤器,但似乎没有用,例如

.filter(((request, next) -> next.exchange(request).retryWhen(retryOnceOn401(tokenProvider))))
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对解决此问题的最佳方法有何建议?问候

project-reactor spring-webflux

8
推荐指数
2
解决办法
5622
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