AOP以注解为切入点，获取注解参数和切点方法参数名

import cn.lettin.base.response.ResponseObjBaseVo;
import cn.lettin.base.response.ResponseVo;
import cn.lettin.keeper.edge.utils.UserNodeAuthCheckUtils;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;

import java.util.Arrays;
import java.util.List;

import static cn.lettin.common.exception.GlobalException.OK;

@Aspect
@Component
public class UserNodeAuthCheckAop {
    private final UserNodeAuthCheckUtils userNodeAuthCheckUtils;

    public UserNodeAuthCheckAop(UserNodeAuthCheckUtils userNodeAuthCheckUtils) {
        this.userNodeAuthCheckUtils = userNodeAuthCheckUtils;
    }

    @Around(value = "@annotation(cn.lettin.keeper.edge.external.aspect.UserNodeAuth)")
    public Object check(ProceedingJoinPoint point) throws Throwable {
        // 获取目标方法上的注解
        MethodSignature methodSignature = (MethodSignature) point.getSignature();
        UserNodeAuth userNodeAuth = methodSignature.getMethod().getAnnotation(UserNodeAuth.class);
        // 下面两个数组中，参数值和参数名的个数和位置是一一对应的。
        Object[] args = point.getArgs(); // 参数值
        List<String> argNames = Arrays.asList(methodSignature.getParameterNames()); // 参数名
        String nodeId = (String) args[argNames.indexOf("nodeId")];
        Integer userId = (Integer) args[argNames.indexOf("userId")];
        Integer regionId = (Integer) args[argNames.indexOf("regionId")];
        ResponseVo<ResponseObjBaseVo> responseVo = userNodeAuthCheckUtils.authCheck(nodeId, userId, regionId, userNodeAuth.value());
        if (responseVo.getStatus() != OK) {
            return new ResponseVo<>(responseVo);
        }
        return point.proceed();
    }
}

转载自：https://blog.csdn.net/mengting2040/article/details/132433024