CODEWITHSUNDEEP
javaspringspring-boot
eight
eight

Reputation: 351

Spring boot not serving static files from inside jar

Spring boot is not serving static files placed inside a jar.

I've had a backend app which I decided to add frontend to. Setup tasks to copy static frontend files to src/main/resources/static. Went through a bunch of answers here on SO, all of them advise the static content (index.html, .js and .css files) should reside under src/main/resources/static or src/main/resources/public, which i both tried. I open the built .jar and the static files are there, but starting application using java -jar myApp.jar and opening localhost:8080 gives me default whitelabel error page. My application works, since i can access the api i have running on it. Application doesn't have @EnableWebMvc or any other custom configuration.

If i manually copy/paste same static resources to project's src/main/resources/static and ran the application using @SpringBootApplication class in IDE - the resources are loaded without problem and index.html opens upon visiting localhost:8080, so it's only a problem when files are in .jar. Should the static files be somewhere different when they're in runnable spring boot .jar file? Spring boot version 2.1.1

Upvotes: 2

Views: 4137

Answers (1)

Highbrainer
Highbrainer

Reputation: 760

I am facing the same problem.

In case it is helpfull, I can manage to serve the static files properly by adding the following configuration :

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
@EnableWebMvc
public class StaticFilesConfig implements WebMvcConfigurer {

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/");
    }
}

... but it overrides the "implicit" auto configuration from spring boot and the rest of my filters etc. doesn't work anymore... => this is because @EnableWebMvc deactivates spring's default configuration.

[EDIT] In the end, I happened to understand that the jar containing the static files was not included in the built bootJar. You may want to check that. HTH!

Upvotes: 3

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