From fe169aa12f4235cf99d0d2a1f094256e9523e7d5 Mon Sep 17 00:00:00 2001
From: cuijiawang <cuijiawang@aizerobyte.com>
Date: Thu, 27 Mar 2025 14:05:35 +0800
Subject: [PATCH] =?UTF-8?q?feat(stu.base.annotation):=20=E6=B7=BB=E5=8A=A0?=
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---
 .../stu/base/annotation/AnnotationHelper.java | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 src/main/java/stu/base/annotation/AnnotationHelper.java

diff --git a/src/main/java/stu/base/annotation/AnnotationHelper.java b/src/main/java/stu/base/annotation/AnnotationHelper.java
new file mode 100644
index 0000000..18d19f2
--- /dev/null
+++ b/src/main/java/stu/base/annotation/AnnotationHelper.java
@@ -0,0 +1,32 @@
+package stu.base.annotation;
+
+import org.springframework.core.annotation.AnnotationUtils;
+import org.springframework.web.method.HandlerMethod;
+import org.springframework.web.servlet.HandlerMapping;
+
+import javax.servlet.http.HttpServletRequest;
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Method;
+
+public class AnnotationHelper {
+
+    /**
+     * 从 HttpServletRequest 中获取处理当前请求的方法上的注解
+     */
+    public static <T extends Annotation> T getMethodAnnotation(
+            HttpServletRequest request,
+            Class<T> annotationClass
+    ) {
+        // 从请求属性中获取 HandlerMethod
+        HandlerMethod handlerMethod = (HandlerMethod) request.getAttribute(
+                HandlerMapping.BEST_MATCHING_HANDLER_ATTRIBUTE
+        );
+
+        if (handlerMethod != null) {
+            Method method = handlerMethod.getMethod();
+            // 获取方法上的注解（包括继承的注解）
+            return AnnotationUtils.findAnnotation(method, annotationClass);
+        }
+        return null;
+    }
+}