Spring Boot Standalone Application

Disable WebContainer

Since Spring 2.0.0, Spring provides WebApplicationType Enum to give more controls of SpringApplication. Currently it supports the following types:

  • None: The application should not run as a web application and should not start an embedded web servicer.
  • REACTIVE: The application should run as a reactive web application and should start an embedded reactive web server.
  • SERVLET: THe application should run as a servlet-based web application and should start an embedded servlet web server.

Implement the CommandLineRunner interface

Here an example. For detail to check on the github.

package com.navysu.java.basic;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

public class JavaBasicApplication implements CommandLineRunner {
	private MyBootStarter starter;

	public static void main(String[] args) {
		SpringApplication.run(JavaBasicApplication.class, args);

	public void run(String... args) throws Exception {
		for (String arg: args) {

Written on January 19, 2022