How to serve static content using Webflux?

Spring Web Flux & public static web resources configuration

• put public static web resources into the public-web-resources folder:

  ./src/main/public-web-resources
  

• configure Spring Boot 2.0, application.yaml:

  spring.main.web-application-type: "REACTIVE"
  spring.webflux.static-path-pattern: "/app/**"
  spring.resources.static-locations:
    - "classpath:/public-web-resources/"
  

• configure maven-resources-plugin, pom.xml:

  <build>
      <plugins>
          <plugin>
              <artifactId>maven-resources-plugin</artifactId>
              <version>3.0.1</version>
              <executions>
                  <execution>
                      <id>copy-resources</id>
                      <phase>validate</phase>
                      <goals>
                          <goal>copy-resources</goal>
                      </goals>
                      <configuration>
                          <resources>
                              <resource>
                                  <directory>src/main/public-web-resources</directory>
                                  <filtering>true</filtering>
                              </resource>
                          </resources>
                          <outputDirectory>${basedir}/target/classes/public-web-resources</outputDirectory>
                      </configuration>
                  </execution>
              </executions>
          </plugin>
          <plugin>
              <groupId>org.springframework.boot</groupId>
              <artifactId>spring-boot-maven-plugin</artifactId>
              <version>2.0.0.BUILD-SNAPSHOT</version>
          </plugin>
      </plugins>
  </build>
  

Juan Medina is right. I just want to make it even more clear and provide a reference link.

In fact, you just have to add a RouterFunction bean to handle static resources. You don't have to implement your own RouterFunction because RouterFunctions.resources("/**", new ClassPathResource("static/")); gives what you want.

All I do is to add this piece of code:

@Bean
RouterFunction<ServerResponse> staticResourceRouter(){
    return RouterFunctions.resources("/**", new ClassPathResource("static/"));
}

Whatever unrecoginized requests will fall into the static router.

Try this

RouterFunction router = resources("/**", new ClassPathResource("public/"));

UPDATE: Don't forget to specify a name of the static file in the URL when accessing it from outside, like localhost:8080/index.html