在 Spring Boot MVC 中为静态文件提供服务的 URL 路径的默认资源处理程序

Question

I have a Spring Boot-based project (based on spring-boot-starter-parent and spring-boot-starter-web in which I want to both serve static content (built in another module, and copied into the project with maven-resources-plugin ).

With the default configuration/conventions, it looks for static content in misc. places, like classpath:/static and classpath:/public , which is useful if the static content is to be served from the root URL, which for this project is not the case.

I want to serve it off /web/ which I have successfully done by deriving from WebMvcConfigurer (and annotated the class with @Configuration ) and overridden the public void addResourceHandlers(ResourceHandlerRegistry registry) method; registry.addResourceHandler("/web/**").addResourceLocations("classpath:/static/web/");

This works when explicitly referring to the file names in the /web/ -folder, but I can't figure out how I can emulate the "default document" behavior, eg index.html should be served for /web/ . If you drop off an index.html in one of the root directories for static content, it will be handled by the WelcomePageHandlerMapping .

Answer 1

Found the solution; I also had to override the addViewControllers() to create an explicit mapping and fix the precedence:

@Override
public void addViewControllers(ViewControllerRegistry registry) {
    registry.addViewController("/web/").setViewName("index.html");
    registry.setOrder(Ordered.HIGHEST_PRECEDENCE);
}