moremind commented on code in PR #3792:
URL: https://github.com/apache/shenyu/pull/3792#discussion_r936239565
##########
shenyu-plugin/shenyu-plugin-httpclient/src/main/java/org/apache/shenyu/plugin/httpclient/WebClientPlugin.java:
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@@ -47,20 +49,27 @@ public class WebClientPlugin extends
AbstractHttpClientPlugin<ClientResponse> {
public WebClientPlugin(final WebClient webClient) {
this.webClient = webClient;
}
-
+
@Override
protected Mono<ClientResponse> doRequest(final ServerWebExchange exchange,
final String httpMethod, final URI uri,
final HttpHeaders httpHeaders,
final Flux<DataBuffer> body) {
// springWebflux5.3 mark #exchange() deprecated. because #echange
maybe make memory leak.
// https://github.com/spring-projects/spring-framework/issues/25751
// exchange is deprecated, so change to {@link
WebClient.RequestHeadersSpec#exchangeToMono(Function)}
- // exchangeToMono has two important bug:
- // 1.exchangeToMono can cause NPE when response body is null
- // 2.download file with exchangeToMono can't open
return webClient.method(HttpMethod.valueOf(httpMethod)).uri(uri)
.headers(headers -> headers.addAll(httpHeaders))
.body(BodyInserters.fromDataBuffers(body))
- .exchange()
+ .exchangeToMono(response -> response.bodyToMono(byte[].class)
+ .flatMap(bytes ->
Mono.just(Optional.ofNullable(bytes))).defaultIfEmpty(Optional.empty())
Review Comment:
maybe use Mono.fromCallable()
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