package com.baeldung.properties; import java.io.IOException; import java.util.Map; import org.springframework.core.env.MapPropertySource; import org.springframework.core.env.PropertySource; import org.springframework.core.io.support.EncodedResource; import org.springframework.core.io.support.PropertySourceFactory; import com.fasterxml.jackson.databind.ObjectMapper; public class JsonPropertySourceFactory implements PropertySourceFactory { @Override public PropertySource createPropertySource(String name, EncodedResource resource) throws IOException { Map readValue = new ObjectMapper().readValue(resource.getInputStream(), Map.class); return new MapPropertySource("json-property", readValue); } }