如何使用ResourceHandlerRegistry和Spring MVC映射单个文件？

Question

I have a Spring MVC app where I define a static resource haandler like this:

@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
    if (resourceIdentifier != null) {
        registry.addResourceHandler("/admin-ui/**", "/admin-ui/").addResourceLocations(
                "file:" + resourceIdentifier.getResourcesLocation() + "/");
    }
}

(For brevity, I have elided the rest of the HandlerInterceptor declaration.)

Now, the main entry point of the app is:

https://foo.mysite.com/admin-ui/index.html

Instead, I want the entry point to be:

https://foo.mysite.com/admin-ui

Currently, this gives a 404 error. What is the easiest way to enable this, preferably using the ResourceHandlerRegistry ?

Answer 1

I added the following controller, which works partially:

@Override
public void addViewControllers(ViewControllerRegistry registry) {
    registry.addViewController("admin-ui").setViewName("/admin-ui/index.html");
}

I needed to make a few other changes in my app since the other assets, eg, the css, js, and template files were being accessed relative the index.html (ie, with no admin-ui/ as part of the path). I needed to change this to being an absolute path to the server root, so for example in index.html:

<link href="css/bootstrap.min.css" rel="stylesheet">

became this:

<link href="/admin-ui/css/bootstrap.min.css" rel="stylesheet">

After doing this for all urls in the app, I can now access the app with or without the index.html .