Suddenly Springfox Swagger 3.0 is not working with spring webflux

Question

Application was working with Springfox Swagger 3.0 few days back. Suddenly it is stopped working. The Jar file which was created before a week is still working but now when we try to build a new Jar file, which is not working, even without any code/library changes. I have even referred the below URL but still facing issue.

404 error with swagger-ui and spring webflux

Below given my configuration:

POM file:

<properties>     <java.version>1.8</java.version>     <springfox.version>3.0.0-SNAPSHOT</springfox.version>     <spring.version>2.3.1.RELEASE</spring.version> </properties> <repositories>     <repository>         <id>spring-libs-milestone</id>         <name>Spring Milestone Maven Repository</name>         <url>http://oss.jfrog.org/artifactory/oss-snapshot-local/</url>     </repository> </repositories>  <dependencies>     <dependency>         <groupId>org.springframework.boot</groupId>         <artifactId>spring-boot-starter-webflux</artifactId>     </dependency>     <dependency>         <groupId>io.springfox</groupId>         <artifactId>springfox-swagger2</artifactId>         <version>${springfox.version}</version>     </dependency>     <dependency>         <groupId>io.springfox</groupId>         <artifactId>springfox-spring-webflux</artifactId>         <version>${springfox.version}</version>     </dependency>     <dependency>         <groupId>io.springfox</groupId>         <artifactId>springfox-swagger-ui</artifactId>         <version>${springfox.version}</version>     </dependency> </dependencies> 

Config Files:

@Configuration @EnableSwagger2WebFlux public class SwaggerConfiguration implements WebFluxConfigurer {      @Bean     public Docket createRestApi() {         return new Docket(DocumentationType.SWAGGER_2)                 .apiInfo(new ApiInfoBuilder()                         .description("My Reactive API")                         .title("My Domain object API")                         .version("1.0.0")                         .build())                 .enable(true)                 .select()                 .apis(RequestHandlerSelectors.basePackage("com.reactive.controller"))                 .paths(PathSelectors.any())                 .build();      }      @Override     public void addResourceHandlers(ResourceHandlerRegistry registry) {          registry.addResourceHandler("/swagger-ui.html**")                 .addResourceLocations("classpath:/META-INF/resources/");          registry.addResourceHandler("/webjars/**")                 .addResourceLocations("classpath:/META-INF/resources/webjars/");     } } 

I am getting 404 error when I try to open the swagger page.

http://localhost:8080/swagger-ui.html

Can someone help me with this. Thanks in advance.

Answer 1

The implementation has changed recently (see migrating from earlier snapshots for a brief update on this).

Now the UI is avaiable under /swagger-ui endpoint (not /swagger-ui.html).

You should also drop the @EnableSwagger2WebFlux annotation and addResourceHandlers() method, remove all springfox dependencies and add just one:

<dependency>         <groupId>io.springfox</groupId>         <artifactId>springfox-boot-starter</artifactId>         <version>${springfox.version}</version> </dependency> 

Answer 2

Getting Started with Swagger-3 in Springboot Rest API

For new projects

For Maven:-

<dependency>     <groupId>io.springfox</groupId>     <artifactId>springfox-boot-starter</artifactId>     <version>3.0.0</version> </dependency> 

For Gradle:-

  implementation "io.springfox:springfox-boot-starter:<version>" 

Now there is no extra configuration to activate swagger on the spring-boot project like the previous. if try to configure with security, there is some configuration. plz refer to this article.

In swagger version 3 remove the @EnableSwagger2 annotation base config also.

And most of the user tries to find HTML swagger document file using {host}/swagger-ui.html or {host}/swagger-ui those are now removed.

use {host}/swagger-ui/ to see the HTML document

This is a sample project link on GitHub Refer to documentation io.springfox