springboot扫描自定义注解

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface MyCustomAnnotation {
    String value() default "";
}

import org.springframework.stereotype.Component;

@Component
public class MyComponent {

    @MyCustomAnnotation("testValue")
    public void myMethod() {
        System.out.println("Executing myMethod");
    }
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Component;

import java.lang.reflect.Method;

@Component
public class AnnotationProcessor {

    @Autowired
    private ApplicationContext context;

    @PostConstruct
    public void processAnnotations() {
        String[] beanNames = context.getBeanDefinitionNames();
        for (String beanName : beanNames) {
            Object bean = context.getBean(beanName);
            Class<?> clazz = bean.getClass();
            for (Method method : clazz.getDeclaredMethods()) {
                if (method.isAnnotationPresent(MyCustomAnnotation.class)) {
                    MyCustomAnnotation annotation = method.getAnnotation(MyCustomAnnotation.class);
                    System.out.println("Found annotation with value: " + annotation.value());
                    // 处理注解逻辑
                }
            }
        }
    }
}