How to register RouterFunction in @Bean method in Spring Boot 2.0.0.M2?

Joonas Vali :

I'm playing around with Spring 5 features and I'm having some trouble registering RouterFunction, it will be read, but not mapped. (Tried by throwing exception in the method.)

@Configuration
@RequestMapping("/routes")
public class Routes {
  @Bean
  public RouterFunction<ServerResponse> routingFunction() {
    return RouterFunctions.route(RequestPredicates.path("/asd"), req -> ok().build());
  }
}

Going to /routes/asd results in 404, any clues on what I'm doing wrong? (I also tried without this @RequestMapping to /routes, it also returned 404 for /asd)

Joonas Vali :

I found the issue.

I had those dependencies both in my pom.xml:

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-webflux</artifactId>
</dependency>

removed the spring-boot-starter-web dependency and webflux started working properly.

Another solution was to keep the web dependency and exclude tomcat so netty started working:

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-web</artifactId>
  <exclusions>
    <exclusion>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-tomcat</artifactId>
    </exclusion>
  </exclusions>
</dependency>
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-webflux</artifactId>
</dependency>

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