banner generator spring boot

1. Add the Spring Boot Starter Dependency for the Banner Generator:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter</artifactId>
</dependency>

1. Create a banner.txt file in the src/main/resources directory with ASCII art for the banner.

2. Configure the banner location in the application.properties or application.yml file:

spring.banner.location=classpath:banner.txt

1. Customize the banner settings using properties:

spring.banner.charset=UTF-8
spring.banner.image.location=classpath:banner.txt
spring.banner.image.width=800
spring.banner.image.height=200
spring.banner.image.margin=12

1. Use ANSI colors in the banner for enhanced styling:

spring.banner.color.enabled=true
spring.banner.color.location=classpath:banner.txt

1. Disable the banner if needed:

spring.main.banner-mode=off

1. Create a custom banner implementation by implementing the Banner interface:

import org.springframework.boot.Banner;
import org.springframework.core.env.Environment;

public class CustomBanner implements Banner {
    @Override
    public void printBanner(Environment environment, Class<?> sourceClass, PrintStream out) {
        // Custom banner logic
    }
}

1. Register the custom banner in the application:

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class MyApplication {
    public static void main(String[] args) {
        SpringApplication application = new SpringApplication(MyApplication.class);
        application.setBanner(new CustomBanner());
        application.run(args);
    }
}

1. Use a banner image instead of ASCII art:

spring.banner.image.location=classpath:banner.png

1. Configure the image size and margin:

spring.banner.image.width=800
spring.banner.image.height=200
spring.banner.image.margin=12