小傅哥，数据库路由组件设计

src/main/java/cn/bugstack/middleware/db/router/DBRouterJoinPoint.java

@@ -14,6 +14,7 @@ import org.aspectj.lang.reflect.MethodSignature;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.core.annotation.Order;
 import org.springframework.stereotype.Component;
 
 import java.lang.reflect.Method;
@@ -24,6 +25,7 @@ import java.lang.reflect.Method;
  * Create by 小傅哥(fustack)
  */
 @Aspect
+//@Order(1)
 @Component("db-router-point")
 public class DBRouterJoinPoint {
 
@@ -36,12 +38,10 @@ public class DBRouterJoinPoint {
     public void aopPoint() {
     }
 
-    @Around("aopPoint()")
-    public Object doRouter(ProceedingJoinPoint jp) throws Throwable {
+    @Around("aopPoint() && @annotation(dbRouter)")
+    public Object doRouter(ProceedingJoinPoint jp, DBRouter dbRouter) throws Throwable {
         Method method = getMethod(jp);
-        DBRouter dbRouter = method.getAnnotation(DBRouter.class);
-//        String dbKey = dbRouter.key();
-        String dbKey = "userId";
+        String dbKey = dbRouter.key();
         if (StringUtils.isBlank(dbKey)) throw new RuntimeException("annotation DBRouter key is null！");
         // 计算路由
         String dbKeyAttr = getAttrValue(dbKey, jp.getArgs());
@@ -66,6 +66,10 @@ public class DBRouterJoinPoint {
     private Method getMethod(JoinPoint jp) throws NoSuchMethodException {
         Signature sig = jp.getSignature();
         MethodSignature methodSignature = (MethodSignature) sig;
+
+        Class<?>[] interfaces = getClass(jp).getInterfaces();
+
+
         return getClass(jp).getMethod(methodSignature.getName(), methodSignature.getParameterTypes());
     }
 

src/main/java/cn/bugstack/middleware/db/router/annotation/DBRouter.java

@@ -2,13 +2,15 @@ package cn.bugstack.middleware.db.router.annotation;
 
 import java.lang.annotation.*;
 
+
 /**
  * 博客：https://bugstack.cn - 沉淀、分享、成长，让自己和他人都能有所收获！
  * 公众号：bugstack虫洞栈
  * Create by 小傅哥(fustack)
  */
-//@Retention(RetentionPolicy.RUNTIME)
-//@Target({ElementType.TYPE, ElementType.METHOD})
+@Documented
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ElementType.TYPE, ElementType.METHOD})
 public @interface DBRouter {
 
     String key() default "";

src/test/java/cn/bugstack/middleware/test/ApiTest.java

 package cn.bugstack.middleware.test;
 
+import cn.bugstack.middleware.db.router.annotation.DBRouter;
 import org.junit.Test;
 
+import java.lang.reflect.AnnotatedType;
+import java.lang.reflect.Method;
+
 /**
  * 博客：https://bugstack.cn - 沉淀、分享、成长，让自己和他人都能有所收获！
  * 公众号：bugstack虫洞栈
@@ -33,9 +37,22 @@ public class ApiTest {
     }
 
     @Test
-    public void test_str_format(){
+    public void test_str_format() {
         System.out.println(String.format("db%02d", 1));
         System.out.println(String.format("_%02d", 25));
     }
 
+    @Test
+    public void test_annotation() throws NoSuchMethodException {
+        Class<IUserDao> iUserDaoClass = IUserDao.class;
+        Method method = iUserDaoClass.getMethod("insertUser", String.class);
+
+        DBRouter dbRouter = method.getAnnotation(DBRouter.class);
+
+        System.out.println(dbRouter.key());
+
+    }
+
 }
+
+

src/test/java/cn/bugstack/middleware/test/IUserDao.java

+package cn.bugstack.middleware.test;
+
+import cn.bugstack.middleware.db.router.annotation.DBRouter;
+
+/**
+ * 博客：https://bugstack.cn - 沉淀、分享、成长，让自己和他人都能有所收获！
+ * 公众号：bugstack虫洞栈
+ * Create by 小傅哥(fustack)
+ */
+
+public interface IUserDao {
+
+    @DBRouter(key = "userId")
+    void insertUser(String req);
+
+}