What annotation do you use to quickly switch between different environments to load different configurations?

@Profile is used to quickly switch between different environments to load different configurations.

• Add @Profile annotation to the configuration class.

    @Configuration
    @Profile("dev")
    public class DevConfig {
        // ...
        @Value("${spring.datasource.url}")
        private String url;
    }
  

• Add spring.profiles.active in application.properties file.

    spring.profiles.active=dev
  

What is Jasypt?

Jasypt is a java library which allows the developer to perform encryption and decryption in Java application. Such as password, database connection strings, etc.