add aop

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"

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 {
+}

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;
+    }
+
+}

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() {