Mono<User> 以反应方式发送给用户

Question

我有一个 Mono 对象 Mono<User>，我想以反应方式将其转换为对象。

context.getUser().map(User::getUserId);

在这里，context.getUser() returns Mono<User> 我可以从那里得到 userId。如何获取完整对象？

Answer 1

context.getUser().map(user -> {
  // here you have the "complete" user object in variable "user"
});

如果您需要将值存储在变量中，您可以像

那样做

User user = context.getUser().block();

但这并不可取：

you should avoid this by favoring having reactive code end-to-end, as much as possible. You MUST avoid this at all cost in the middle of other reactive code, as this has the potential to lock your whole reactive pipeline.

这样做有点违背了使用反应式编程的意义。然后它将有一个阻塞瓶颈，这正是反应式编程试图避免的事情。

Mono<User> 以反应方式发送给用户

Mono<User> to User in a reactive way

java

reactive-programming

project-reactor