Ideas:

  1. Get ApplicationContext by getBeanDefinitionNames() so the question becomes, how do I get ApplicationContext

    • Inject ApplicationContext with a construct 
      @RequestMapping("/spring")
@RestController
public class GetAllBeansInSpringController {
  private ApplicationContext applicationContext;
  @Autowired
  public void setApplicationContext(ApplicationContext applicationContext) {
      this.applicationContext = applicationContext;
  }

  @GetMapping("/beans")
  public String[] getAllBeansInSpring() {
      returnapplicationContext.getBeanDefinitionNames(); }}Copy the code
    • Gets the return value of the startup class 
      @SpringBootApplication
public class MykafkaApplication {
    private static ApplicationContext context;
    public static void main(String[] args) {
        context = SpringApplication.run(MykafkaApplication.class, args);
        display();
    }
    public static void display(a) {
// System.err.println(context.getBeanDefinitionCount());Arrays.stream(context.getBeanDefinitionNames()).forEach(System.err::println); }}Copy the code
    • Some other ways (to be added)

  2. Some external tools – Using Actuator(to be added)