Cfrgtkky

I am serving an SPA made with create-react-app and react-router using Spring Boot 2.1.0 with this configuration

import org.springframework.context.annotation.Configuration;

import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;

import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;



@Configuration

public class WebMvcConfiguration implements WebMvcConfigurer {



    @Override

    public void addViewControllers(ViewControllerRegistry registry) {

        registry.addViewController("/**/{path:[^\.]+}")

                .setViewName("forward:/");

    }

}

Basically what it does is always serve index.html unless there's a period in the path. I would like to align this with create-react-app's provided .htaccess. How can I make Spring Boot match this functionality?

RewriteEngine on

RewriteCond %{REQUEST_FILENAME} !-f

RewriteCond %{REQUEST_FILENAME} !-d

RewriteRule . /index.html [L]

To reroute "404 : file not found" to "forward:/", which I think is what the .htaccess does, change your WebMvcConfiguration to...

@Configuration

public class WebMvcConfiguration implements ErrorViewResolver

{



    @Override

    public ModelAndView resolveErrorView(HttpServletRequest request, HttpStatus status, Map<String, Object> model) {

        if (status == HttpStatus.NOT_FOUND) {

            return new ModelAndView("forward:/");

        }

        return null;

    }



}

You can catch-all unhandled view controller like below when no other route has been found.

@Configuration

public class WebMvcConfiguration implements WebMvcConfigurer {



    @Override

    public void addViewControllers(ViewControllerRegistry registry) {

       registry.setOrder(Ordered.LOWEST_PRECEDENCE);

        registry.addViewController("/**").setViewName("forward:/index.html");

    }

}

Following Kotlin code might help:

@Configuration

class WebMvcConfig(val resourceProperties: ResourceProperties) : WebMvcConfigurer {



    override fun addResourceHandlers(registry: ResourceHandlerRegistry) {

        registry.addResourceHandler("/**")

            .addResourceLocations(*resourceProperties.staticLocations)

            .resourceChain(resourceProperties.chain.isCache)

            .addResolver(FallbackPathResourceResolver())

    }



    private class FallbackPathResourceResolver : PathResourceResolver() {

        override fun resolveResource(

            request: HttpServletRequest?,

            requestPath: String,

            locations: MutableList<out Resource>,

            chain: ResourceResolverChain

        ): Resource? {

            return super.resolveResource(request, requestPath, locations, chain) ?: super.resolveResource(

                request,

                "/index.html",

                locations,

                chain

            )

        }

    }

}

Reference: https://jira.spring.io/browse/SPR-16788