如何用webclient替换resttemplate实现

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
    <groupId>io.projectreactor</groupId>
    <artifactId>reactor-core</artifactId>
</dependency>

WebClient webClient = WebClient.builder()
        .baseUrl("http://api.example.com")
        .defaultHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
        .build();

webClient.get()
        .uri("/users/{id}", userId)
        .retrieve()
        .bodyToMono(User.class)
        .subscribe(user -> {
            // 处理返回的User对象
        });

webClient.post()
        .uri("/users")
        .body(Mono.just(user), User.class)
        .retrieve()
        .bodyToMono(User.class)
        .subscribe(createdUser -> {
            // 处理返回的创建的User对象
        });