From c99bad22cb49e7500ac5e654fc5aeeb22b60d760 Mon Sep 17 00:00:00 2001
From: Hatter Jiang <jht5945@gmail.com>
Date: Sun, 14 Nov 2021 13:01:38 +0800
Subject: [PATCH] add aop

---
 build.json                                    |  3 ++-
 .../sample/common/annotation/Traceable.java   | 11 ++++++++++
 .../sample/common/aspect/TraceableAspect.java | 20 +++++++++++++++++++
 .../web/controller/SampleController.java      |  2 ++
 4 files changed, 35 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/me/hatter/sample/common/annotation/Traceable.java
 create mode 100644 src/main/java/me/hatter/sample/common/aspect/TraceableAspect.java

diff --git a/build.json b/build.json
index 3d34023..2ea09ea 100644
--- a/build.json
+++ b/build.json
@@ -13,7 +13,8 @@
     "repo": {
         "dependencies": [
             "me.hatter:commons:3.0",
-            "org.springframework.boot:spring-boot-starter-web:2.3.12.RELEASE"
+            "org.springframework.boot:spring-boot-starter-web:2.3.12.RELEASE",
+            "org.springframework.boot:spring-boot-starter-aop:2.3.12.RELEASE"
         ],
         "testDependencies": [
             "junit:junit:4.12"
diff --git a/src/main/java/me/hatter/sample/common/annotation/Traceable.java b/src/main/java/me/hatter/sample/common/annotation/Traceable.java
new file mode 100644
index 0000000..fcf40e2
--- /dev/null
+++ b/src/main/java/me/hatter/sample/common/annotation/Traceable.java
@@ -0,0 +1,11 @@
+package me.hatter.sample.common.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target(ElementType.METHOD)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface Traceable {
+}
\ No newline at end of file
diff --git a/src/main/java/me/hatter/sample/common/aspect/TraceableAspect.java b/src/main/java/me/hatter/sample/common/aspect/TraceableAspect.java
new file mode 100644
index 0000000..b402ea9
--- /dev/null
+++ b/src/main/java/me/hatter/sample/common/aspect/TraceableAspect.java
@@ -0,0 +1,20 @@
+package me.hatter.sample.common.aspect;
+
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.Around;
+import org.aspectj.lang.annotation.Aspect;
+import org.springframework.stereotype.Component;
+
+@Aspect
+@Component
+public class TraceableAspect {
+
+    @Around("@annotation(me.hatter.sample.common.annotation.Traceable)")
+    public Object trace(ProceedingJoinPoint joinPoint) throws Throwable {
+        System.out.println("[TraceableAspect] " + joinPoint);
+        Object result = joinPoint.proceed();
+        System.out.println("[TraceableAspect] " + result);
+        return result;
+    }
+
+}
diff --git a/src/main/java/me/hatter/sample/web/controller/SampleController.java b/src/main/java/me/hatter/sample/web/controller/SampleController.java
index f10b16a..423fff9 100644
--- a/src/main/java/me/hatter/sample/web/controller/SampleController.java
+++ b/src/main/java/me/hatter/sample/web/controller/SampleController.java
@@ -3,6 +3,7 @@ package me.hatter.sample.web.controller;
 import me.hatter.sample.common.CustomConfiguration;
 import me.hatter.sample.common.annotation.Permission;
 import me.hatter.sample.common.annotation.SystemTime;
+import me.hatter.sample.common.annotation.Traceable;
 import me.hatter.sample.common.session.CustomSession;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -40,6 +41,7 @@ public class SampleController {
         return "Hello: " + id;
     }
 
+    @Traceable
     @Permission
     @GetMapping("/custom-object")
     public String customObject() {