From d308f14df4be2d3008e934db920ee0d64f121265 Mon Sep 17 00:00:00 2001
From: s-choi <choi-suyeong@iij.ad.jp>
Date: Fri, 18 Sep 2026 15:51:48 +0900
Subject: [PATCH] =?UTF-8?q?[ADD]=20=E3=82=BB=E3=83=83=E3=82=B7=E3=83=A7?=
 =?UTF-8?q?=E3=83=B3=E3=83=81=E3=82=A7=E3=83=83=E3=82=AFAOP=E3=82=92?=
 =?UTF-8?q?=E8=BF=BD=E5=8A=A0=E3=81=97=E3=81=BE=E3=81=97=E3=81=9F=E3=80=82?=
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---
 .../example/demo/aop/aspect/SessionCheck.java | 11 +++++
 .../demo/aop/aspect/SessionCheckAspect.java   | 41 +++++++++++++++++++
 2 files changed, 52 insertions(+)
 create mode 100644 src/main/java/com/example/demo/aop/aspect/SessionCheck.java
 create mode 100644 src/main/java/com/example/demo/aop/aspect/SessionCheckAspect.java

diff --git a/src/main/java/com/example/demo/aop/aspect/SessionCheck.java b/src/main/java/com/example/demo/aop/aspect/SessionCheck.java
new file mode 100644
index 0000000..4de313e
--- /dev/null
+++ b/src/main/java/com/example/demo/aop/aspect/SessionCheck.java
@@ -0,0 +1,11 @@
+package com.example.demo.aop.aspect;
+
+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 SessionCheck {
+}
diff --git a/src/main/java/com/example/demo/aop/aspect/SessionCheckAspect.java b/src/main/java/com/example/demo/aop/aspect/SessionCheckAspect.java
new file mode 100644
index 0000000..3043c98
--- /dev/null
+++ b/src/main/java/com/example/demo/aop/aspect/SessionCheckAspect.java
@@ -0,0 +1,41 @@
+package com.example.demo.aop.aspect;
+
+
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpSession;
+
+import org.aspectj.lang.annotation.Aspect;
+import org.aspectj.lang.annotation.Before;
+import org.aspectj.lang.annotation.Pointcut;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import com.example.demo.exception.NoSessionException;
+
+
+@Aspect
+@Component
+public class SessionCheckAspect {
+
+	HttpServletRequest request;
+
+	@Autowired
+	public SessionCheckAspect(HttpServletRequest request) {
+		this.request = request;
+	}
+
+	@Pointcut("@annotation(com.example.demo.aop.aspect.SessionCheck)")
+	public void sessionCheckMethod() {
+	}
+
+	@Before("sessionCheckMethod()")
+	public void checkSession() {
+		HttpSession session = request.getSession(false);
+
+		if (session == null || session.getAttribute("loginUser") == null) {
+			throw new NoSessionException("不正なログインです");
+		}
+
+	}
+
+}