@Value

1. application.yaml:

server:
  port: 9999

spring:
  profiles:
    include:
      - db
      - redis
      - common

2. application-common.yaml:

 

parvin:
  name: Parvin
  surname: Etibarli
  age: 32
  lessons:
    - OCA
    - OCP
    - MS
  books:
    oca: 1
    ocp: 2
    ms: 3
  personMap:
    one:
      name: Ali
      surname: Aliyev
    two:
      name: Vali
      surname: Valiyev
      

3. Person class:

package com.example.redis.dto;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@NoArgsConstructor
@AllArgsConstructor
public class Person {

    private String name;
    private String surname;

}

4.  Student class:

package com.example.redis.dto;

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

@Data
@Component
@ConfigurationProperties(prefix = "parvin")
public class Student {

    private String name;
    private String surname;
    private Integer age;
    private List<String> lessons;
    private Map<String, Integer> books;
    private Map<String, Person> personMap;

}

5. Example:

package com.example.redis.config;

import com.example.redis.dto.Student;
import jakarta.annotation.PostConstruct;
import lombok.RequiredArgsConstructor;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

@Component
@RequiredArgsConstructor
public class PropertiesExample {

    private final Student student;

    @Value(value = "${parvin.name}")
    private String name;
    @Value(value = "${parvin.surname}")
    private String surname;
    @Value(value = "${parvin.age}")
    private Integer age;

    @PostConstruct
    public void print() {
        System.out.println(name);
        System.out.println(surname);
        System.out.println(age);
        System.out.println("----------------------------------------");
        System.out.println(student);
    }

}