Spring Boot 在运行时获取主类的名称 [英] Spring Boot get name of main class at runtime

问题描述

我正在尝试根据 Scanning Java annotations at运行时.

但是，为了加快进程，我只想扫描主包(包含主类及其子包的包)下的类.认为确定包名称的最简单方法是从主类.

However, to speed up the process, I only want to scan the classes under the main package (package which has the main class and its sub-packages). Figured that the easiest way to determine the package name would be from the main class.

我正在编写的代码最终会出现在 Spring Boot 应用程序将使用的库中.所以我无法知道主类的名称.有没有办法在 Spring Boot 应用程序中在运行时确定主类的名称?

The code I am writing would end up in a library which will be used by Spring Boot applications. So I have no way of knowing the name of the main class. Is there a way to determine the name of the main class at runtime in Spring Boot application?

问候，

阿努普

推荐答案

假设您的主类使用 @SpringBootApplication 进行注释，则可以使用 ApplicationContext::getBeansWithAnnotation():

Assuming your main class is annotated with @SpringBootApplication, it can be done using ApplicationContext::getBeansWithAnnotation():

@Service
public class MainClassFinder {

    @Autowired
    private ApplicationContext context;

    public String findBootClass() {
        Map<String, Object> annotatedBeans = context.getBeansWithAnnotation(SpringBootApplication.class);
        return annotatedBeans.isEmpty() ? null : annotatedBeans.values().toArray()[0].getClass().getName();
    }
}

这篇关于Spring Boot 在运行时获取主类的名称的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！