CODEWITHSUNDEEP
javaspringspring-boot
Ivan Holub
Ivan Holub

Reputation: 31

Spring boot: load resources like application.properties is loaded

Spring boot searches for application.properties in different locations: in classpath, in current folder, in /config folder and so on.

Is there a simple way to load any resource the same way?

For example, I want to load files:

and parse them by myself, not like property files.

Is there a simple way to ask spring boot to find them like it searches for application.properties in different locations?

Upvotes: 3

Views: 2090

Answers (2)

Abhinav Manthri
Abhinav Manthri

Reputation: 348

PropertySourcesPlaceholderConfigurer used to load properties on startup and you can access its properties just like application.properties

@Bean
public PropertySourcesPlaceholderConfigurer loadResources() {
    var resourceConfigurer = new PropertySourcesPlaceholderConfigurer();
    resourceConfigurer.setLocations(
        new ClassPathResource("file1"),
        new ClassPathResource("file2"),
        new ClassPathResource("file3"));
    resourceConfigurer.setIgnoreUnresolvablePlaceholders(false);
    resourceConfigurer.setIgnoreResourceNotFound(false);
    return resourceConfigurer;
}

Note: application.properties are loaded after files registered by PropertySourcesPlaceholderConfigurer

Upvotes: 0

Rob Baily
Rob Baily

Reputation: 3019

The short answer is that no there is not a way to ask Spring Boot to this. However you can review all of their code. If you look in their ConfigFileApplicationListener class you can see how they have DEFAULT_SEARCH_LOCATIONS defined as the list of places to look for config files and they store this in a Set. Then they use a ResourceLoader to loop through and check if a desired resource exists at each location. If you review their code and their resource documentation I believe you could build your own service to get a file from a possible list of locations.

Upvotes: 1

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