SpringBoot获取有特定注解的Bean

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前言

这里发一个案例，获取 RestController 注解的所有bean。

代码

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import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RestController;

import java.util.Map;

/**
 * 获取有特定注解的Bean<br>
 * demo
 */
@Component
public class InitRestControllerBeanCache implements ApplicationListener<ContextRefreshedEvent> {

    @Override
    public void onApplicationEvent(ContextRefreshedEvent event) {
        // 根容器为Spring容器
        if (event.getApplicationContext().getParent() == null) {
            Map<String, Object> beans = event.getApplicationContext().getBeansWithAnnotation(RestController.class);
            for (Object bean : beans.values()) {
                System.err.println(bean == null ? "null" : bean.getClass().getName());
            }
        }
    }
}

本文地址： https://github.com/maxzhao-it/blog/post/380b5f6e/