tell me how to use the flatmap() in webclient

In reactive programming, particularly when using libraries like Spring WebFlux, a WebClient request often returns a Mono or Flux instead of a direct POJO (Plain Old Java Object).

Master one's desires

Figma我下载到的模板组件，是被紫色边框环绕的，我不能拖动也不能编辑为什么

自动布局怎么使用