How do I use Spring Boot to serve static content l

Question

I have a Spring Boot web application, and I would like to serve static content located in a shared Dropbox directory on my Linode VPS (~/Dropbox/images). I've read that Spring Boot will automatically serve static content from

"classpath:/META-INF/resources/",
"classpath:/resources/",
"classpath:/static/",
"classpath:/public/",

but of course my Dropbox directory is not on the classpath.

Although I could configure Apache to serve the images in my Dropbox folder, I would like to take advantage of Spring Security to restrict access of the static content to authenticated users.

Answer 1

To serve from file system

I added spring.resources.static-location=file:../frontend/build in application.properties

index.html is present in the build folder

Use can also add absolute path

spring.resources.static-location=file:/User/XYZ/Desktop/frontend/build

I think similarly you can try adding Dropbox folder path.

Answer 2

For the current Spring-Boot Version 1.5.3 the parameter is

spring.resources.static-locations

Update I configured

`spring.resources.static-locations=file:/opt/x/y/z/static``

and expected to get my index.html living in this folder when calling

http://<host>/index.html

This did not work. I had to include the folder name in the URL:

http://<host>/static/index.html

Answer 3

You can place your folder in the root of the ServletContext.

Then specify a relative or absolute path to this directory in application.yml:

spring:
  resources:
    static-locations: file:some_temp_files/

The resources in this folder will be available (for downloading, for example) at:

http://<host>:<port>/<context>/your_file.csv

Answer 4

• OS: Win 10
• Spring Boot: 2.1.2

I wanted to serve static content from c:/images

Adding this property worked for me:

spring.resources.static-locations=classpath:/META-INF/resources/,classpath:/resources/,classpath:/static/,classpath:/public/,file:///C:/images/

I found the original value of the property in the Spring Boot Doc Appendix A

This will make c:/images/image.jpg to be accessible as http://localhost:8080/image.jpg

Answer 5

@Mark Schäfer

Never too late, but add a slash (/) after static:

spring.resources.static-locations=file:/opt/x/y/z/static/

So http://<host>/index.html is now reachable.

Answer 6

Note that WebMvcConfigurerAdapter is deprecated now (see WebMvcConfigurerAdapter). Due to Java 8 default methods, you only have to implement WebMvcConfigurer.