Unable to bring up swagger-ui from spring-boot application

Question

I have a spring boot application that i am running using embedded tomcat server. I am partially successful in getting springfox-swagger integrated with the app. If i do a

Answer 1

In my case I removed spring.resources.static-locations in properties file and it works.

Answer 2

If you want to keep @EnableWebMvc annotation any way, you have to add the following

  @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/");

    }

Answer 3

springfox-swagger-ui is a web jar and requires that you set up resource handlers to inform the dispatch servlet how and which resource to serve up when you ask for ../swagger-ui.html. Usually in a spring-boot application auto-configuration takes care of setting it up for you. The reason its not loading in your case is because you've signaled to spring-boot that the application is going to be manually configured via the WebMvcConfigurerAdapter/@EnableWebMvc combination.

You should be able to place the @SpringBootApplication annotation on your main spring configuration and get rid of the WebConfig class all-together.

Since your WebConfig isn't adding any value other than making sure the JSON is indented, I'd suggest removing it all-together and replacing it with a Jackson2ObjectMapperBuilder bean instead.

For examples on how to do the same thing in spring-mvc/spring-boot etc. take a look at the springfox-demos project. In particular take a look at SpringConfig to see how to manually configure the resource handlers.

Answer 4

I have encountered this problem before and the problem was in the below line in application.properties:

spring.resources.add-mappings=false

Remove it or change its value to true.

Answer 5

It worked for me, when i dint override the static path pattern.

In spring boot application just avoid "spring.mvc.static-path-pattern" from properties file and swagger-ui will works fine.