Get Application Name Spring boot - spring

Question

I'm building a module to save the data into the database. After finishing the module I will make it into a JAR which is common and anyone will call static method. There is a parameter its name application name i don’t want pass this value I want get this value dynamic after add jar to any spring boot application , then any one call this static method retrieve name application dynamic , so the spring boot contains the application properties have value spring.application.name I want get this value inside my module it’s doable ? it’s possible to get this value
I searched and found this implementation:
#Value("${spring.application.name}")
private String appName;
My class:
public class BackEnd {
#Value("${spring.application.name}")
static String applicationName;
private static void saveData(String messsage) {
DAO dao= new DAO()
dao.saveData(messsage,applicationName);
}
}
So currently the applicationName value is null. Is it the correct implementation?

Answer 1

The property name is correct and used by a handful of Spring Boot projects. You need to define this property yourself as Spring Boot default is an empty value as per docs:
# IDENTITY (ContextIdApplicationContextInitializer)
spring.application.name= # Application name.
You can use the usual application.yml file e.g.
spring:
application:
name: MyApp

Answer 2

well, the property name is correct but you need to define that property in application.properties or application.yml file as follows.
if you are using application.properties file define property as follows
spring.application.name= # your application name
if you are using application.yml file define property as follows
spring:
application:
name: # your application name