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I'm saving files to a temp directory located outside of my project and I need to be able to link to them after I save them.

I tried adding a resource Handler

registry.addResourceHandler("/photo/**").addResourceLocations("D://photo//");
but it doesn't seem like spring understands that the file isn't on the classpath
21:58:48.293 [http-nio-8080-exec-14] DEBUG o.s.w.s.h.SimpleUrlHandlerMapping - Mapping [/photo/a.png] to HandlerExecutionChain with handler [ResourceHttpRequestHandler [locations=[ServletContext resource [/D://photo//]], resolvers=[org.springframework.web.servlet.resource.PathResourceResolver@782ce27b]]] and 1 interceptor
is there a prefix or something I'm missing?
Thanks!
You can define absolute path in resources as given below.
registry.addResourceHandler("/test/**")
    .addResourceLocations("file:///Users/testuser/test/");
This example is for *nix, Use proper windows location after file://
Spring resource documentation is provided here
Another personal suggestion: I would try to reduce absolute file dependency as much as possible in any web application. Self contained project will be much more easier in maintenance point of view. 
        
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