使用 Spring Boot 2 WebClient 从响应中获取 headers

Question

我想从网络客户端响应中收到 headers（尤其是 content-type）。我用 flatmap-mono-getHeaders 找到了这段代码，但它不起作用。

org.springframework.web.reactive.function.UnsupportedMediaTypeException: Content type 'image/tiff' not supported for bodyType=org.company.MyResponse

我该如何解决？或者有人可以推荐一个更简单的解决方案。

Mono<Object> mono = webClient.get()
                                .uri(path)
                                .acceptCharset(StandardCharsets.UTF_8)
                                .retrieve()
                                .toEntity(MyResponse.class)
                                .flatMap(entity -> Mono.justOrEmpty(entity.getHeaders().getFirst("content-type")));
Object rs = mono.block();
public class MyResponse {
 Object body;
 Integer status;
 String contentType;
}

Answer 1

I would like to receive the headers (especially the content-type) from the webclient response

一般来说，您可以像这样访问响应 headers：

ResponseEntity<MyResponse> response = webClient.get()
        .uri(path)
        .acceptCharset(StandardCharsets.UTF_8)
        .retrieve()
        .toEntity(MyResponse.class)
        .block();
HttpHeaders headers = response.getHeaders();
MediaType contentType = headers.getContentType();

但是从您粘贴的错误来看，您正在访问的图像 (image/tiff) 显然无法转换为您的 MyResponse class.

使用 Spring Boot 2 WebClient 从响应中获取 headers

Get headers from response with Spring Boot 2 WebClient

java

spring

spring-mvc

spring-boot

spring-webflux