该方法可用于声明如何提取响应。例如：retrieve()spring-doc.cn

WebClient client = WebClient.create("https://example.org");

Mono<ResponseEntity<Person>> result = client.get()
		.uri("/persons/{id}", id).accept(MediaType.APPLICATION_JSON)
		.retrieve()
		.toEntity(Person.class);
val client = WebClient.create("https://example.org")

val result = client.get()
		.uri("/persons/{id}", id).accept(MediaType.APPLICATION_JSON)
		.retrieve()
		.toEntity<Person>().awaitSingle()

或者只获取正文：spring-doc.cn

WebClient client = WebClient.create("https://example.org");

Mono<Person> result = client.get()
		.uri("/persons/{id}", id).accept(MediaType.APPLICATION_JSON)
		.retrieve()
		.bodyToMono(Person.class);
val client = WebClient.create("https://example.org")

val result = client.get()
		.uri("/persons/{id}", id).accept(MediaType.APPLICATION_JSON)
		.retrieve()
		.awaitBody<Person>()

要获取解码对象的流，请执行以下操作：spring-doc.cn

Flux<Quote> result = client.get()
		.uri("/quotes").accept(MediaType.TEXT_EVENT_STREAM)
		.retrieve()
		.bodyToFlux(Quote.class);
val result = client.get()
		.uri("/quotes").accept(MediaType.TEXT_EVENT_STREAM)
		.retrieve()
		.bodyToFlow<Quote>()

默认情况下，4xx 或 5xx 响应会导致 ，包括 特定 HTTP 状态代码的子类。自定义错误的处理 responses，使用处理程序，如下所示：WebClientResponseExceptiononStatusspring-doc.cn

Mono<Person> result = client.get()
		.uri("/persons/{id}", id).accept(MediaType.APPLICATION_JSON)
		.retrieve()
		.onStatus(HttpStatusCode::is4xxClientError, response -> ...)
		.onStatus(HttpStatusCode::is5xxServerError, response -> ...)
		.bodyToMono(Person.class);
val result = client.get()
		.uri("/persons/{id}", id).accept(MediaType.APPLICATION_JSON)
		.retrieve()
		.onStatus(HttpStatusCode::is4xxClientError) { ... }
		.onStatus(HttpStatusCode::is5xxServerError) { ... }
		.awaitBody<Person>()