[Spring] Custom Application Properties

직접 Property 커스텀하기

• Problem

  • You need for your app to be configurable .. no hard-coding of values

  • You need for to read app configuration from a perperties file

• Solution: Application Properties file

  • By default, Spring Boot reads information from a standard properties file

    • Located at: src/main/resources/application.properties (Standard Spring Boot file name)

  • You can define ANY custom properties in this file

  • Your Spring Boot app can access properties using @Value (No additional coing or configuration required)

Development Process

1. Define custom properties in application.properties

2. Inject properties into Spring Boot application using @Value

Step 1: Define custom application properties

File: src/main/resources/application.properties

# Define custom properties

coach.name = Mickey Mouse
tean.name = The Mouse Club

Step 2: Inject properties into Spring Boot app

@RestController
public class FunrestController {
    // inject properties for: coach.name and team.name

    @Value("${coach.name}")
    private String coachName;

    @Value("${team.name}")
    private String teamName;
    // 위에 있던 속성 주
}

Result

출처 : 유데미, luv2code.com