[JAVA] [Spring Boot] I want to add my own property file and get the value with env.getProperty ().

Demo app configuration

デモアプリ構成.png src/main/resources/test.properties Property file added by. Get the value from this file. プロパティファイル内.png The state of ↑ in the property file. # Add property file to Environment with @PropertySource ```java import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.PropertySource;

@SpringBootApplication @PropertySource("classpath:test.properties") public class PropertyTestApplication {

public static void main(String[] args) {
	SpringApplication.run(PropertyTestApplication.class, args);


 You can add it to Environment by specifying the path of the property file in the argument of @PropertySource ().

 @PropertySource must be declared with @Configuration,
 Since @Configuration is declared in @SpringBootApplication, there is no need to declare it specially.

 [Click here for @PropertySource reference](https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/context/annotation/PropertySource.html)

# Get it with env.getProperty ().
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.stereotype.Component;

public class PropertyGetComponent {

	Environment env;

	public void printProperty() {
		String value = env.getProperty("test.property.key");
		System.out.println("The obtained value is[ " + value + " ]is.");


The execution result of printProperty () is ↓

The obtained value is[ test value ]is.

I was able to get the value from the property file added by env.getProperty (): blush:

Referenced articles

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