Spring application.properties how to do?

Question

Spring

Greetings dear forum users.

Here I read here https://stackoverflow.com/questions/32058814 and I can't make out the solution. Solution with 100 likes.

I'm trying to do it, but it turns out what kind of mess. Can someone please explain the solution to this?

Answer 1

Hello!
Easily...
1) Create a class for example,

@Configuration
@ConfigurationProperties(prefix = "custom")
public class AppProperties {

// названия полей должны соответствовать названиям из properties. 
private String baseUrl;
private String uploadPath;

// тут геттеры 
}

And here is an example application.properties

custom.base_url=http://localhost:8080
custom.upload_path=/home/example.com/uploads

Spring itself already binds base_url to baseUrl and so on.
The only thing, @ConfigurationProperties(prefix = "custom")
here in prefix, specify the prefix that you need. Those. here custom.base_urlcustom is a prefix.
Details here - https://www.baeldung.com/configuration-properties-...