每个url路由和子例程的Spring单页“/a/**=>/a/index.html，除了/a/static/**”

Question

我正在建立一个spring网站，在SubCure下有一个react单页应用程序，我当前的url结构应该是这样的

localhost/admin/** => react app
localhost/**       => spring thymeleaf/rest/websocket app for everything else

react app mapping:
localhost/admin/static/**  => static react files
localhost/admin/**         => react index.html for everything else

Example of project resources structure:  
resources/
    admin/         <= my admin react files is here
        index.html
        static/    <= react css, js,  statics
    templates/     <= thymeleaf templates
    static/        <= theamleaf static
    ...

所以我需要转发反应index.html文件为每个url路由和子路由基本上单页应用程序的一切，除了静态文件

看起来像一个常见的任务，这里有一些我已经尝试过的东西：

无法使用转发：/admin/index。html用于/admin/**，因为这将创建递归，因为管理/索引。html也在admin/**下，必须以某种方式拦截admin/static/**。

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

index.html仅映射到/admin/index.htmlurl，并且此选项几乎有效，但仅当您从访问反应应用程序localhost/admin/index.html

Answer 1

现在我正在使用customResourceResolver来解决这个问题

演示：https://github.com/varren/spring-react-example

@Configuration
public class BaseWebMvcConfigurerAdapter extends WebMvcConfigurerAdapter {
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {

        ResourceResolver resolver = new AdminResourceResolver();
        registry.addResourceHandler("/admin/**")
                .resourceChain(false)
                .addResolver(resolver);


        registry.addResourceHandler("/admin/")
                .resourceChain(false)
                .addResolver(resolver);
    }


    private class AdminResourceResolver implements ResourceResolver {
        private Resource index = new ClassPathResource("/admin/index.html");

        @Override
        public Resource resolveResource(HttpServletRequest request, String requestPath, List<? extends Resource> locations, ResourceResolverChain chain) {
            return resolve(requestPath, locations);
        }

        @Override
        public String resolveUrlPath(String resourcePath, List<? extends Resource> locations, ResourceResolverChain chain) {
            Resource resolvedResource = resolve(resourcePath, locations);
            if (resolvedResource == null) {
                return null;
            }
            try {
                return resolvedResource.getURL().toString();
            } catch (IOException e) {
                return resolvedResource.getFilename();
            }
        }

        private Resource resolve(String requestPath, List<? extends Resource> locations) {

            if(requestPath == null) return null;

            if (!requestPath.startsWith("static")) {
                return index;
            }else{
                return new ClassPathResource("/admin/" + requestPath);
            }
        }
    }
}