diff --git a/data/blog/2024.md b/data/blog/2024.md
index fbd4748..816da68 100644
--- a/data/blog/2024.md
+++ b/data/blog/2024.md
@@ -2,7 +2,7 @@
 title: '2024 Resolutions'
 date: '2022/2/25'
 lastmod: '2022/3/10'
-tags: [???]
+tags: [yes]
 draft: false
 summary: '///'
 images: [/static/images/2024.jpg]
diff --git a/data/blog/idea-list.md b/data/blog/idea-list.md
index c9866b2..8c21b40 100644
--- a/data/blog/idea-list.md
+++ b/data/blog/idea-list.md
@@ -24,3 +24,7 @@ layout: PostLayout
 ///
 
 - A collection of misunderstandings
+
+
+///
+- Javascript Frameworks: React, Next.js, Vue.js
diff --git a/data/blog/spring.md b/data/blog/spring.md
index d58ce3c..7999f07 100644
--- a/data/blog/spring.md
+++ b/data/blog/spring.md
@@ -9,19 +9,44 @@ images: [/static/images/spring.png]
 layout: PostLayout
 ---
 
-## [Spring Framework](https://docs.spring.io/spring-framework/docs/4.0.x/spring-framework-reference/html/index.html)
-## Practice
 
-I realized coding is **a matter of proficiency**, and proficiency demands for repetitively practice.
-So now, when I read each chapter, I write the code and exercises inside. 
-Only think in mind is not enough, it's like doing sports. I have to use my fingers to write code a lot to get that fluency.
-So don't be lazy. Just write the code.
+## Spring Framework
+[All versions of Spring Framework documentation](https://docs.spring.io/spring-framework/docs/)  
 
-## Notes
-Take notes and use drawings. Drawings are much easy to understand and remember. When I close my eyes and think about a concept, it's better in image.
+I started with [4.0.x](https://docs.spring.io/spring-framework/docs/4.0.x/spring-framework-reference/html/index.html) coz I find its layout well-structured and easy to get on. 
+Also, I've chosen [5.3.x](https://docs.spring.io/spring-framework/docs/5.3.x/reference/html/index.html) and the current version [6.1.5](https://docs.spring.io/spring-framework/reference/)
+to gain some comparison perspectives. 
+
+
+## My approach
+This time, I remind myself, always treat the documentation as a tree structure. 
+Each tree node is a concept, and each concept branch out into several sub-concepts.
+No concept stands alone. **In nature, everything is connected.**  
+So first, get the upper most tree nodes (the most abstract ones). Then, branch out the sub-concepts.
+
+|| Before drawing this tree of concepts in my mind, get the 10 keywords of Spring Framework to get a first impression.  
+**Dependency Injection, Aspect-Oriented Programming(AOP), Inversion of Control(IOC), Model-View-Controller(MVC), 
+Application Context, Bean, Bean Container, Spring Core, Transaction Management, Spring Data JPA**  
+I shall explain all these concepts later in my words.
+
+
+## What is Spring
+The Spring Framework is divided into modules (**Spring is modular**). Applications can choose which modules they need. 
+At the heart are the modules of the core container, including a configuration model and a dependency injection mechanism. 
+Beyond that, the Spring Framework provides foundational support for different application architectures, 
+including messaging, transactional data and persistence, and web. It also includes the Servlet-based Spring MVC web framework and, 
+in parallel, the Spring WebFlux reactive web framework.
+
+## History
+///
+
+## Core technologies
+
+![iaa](/static/images/spring-overview.png)  
+  
+Foremost is the Spring Framework’s Inversion of Control (IoC) container. Then its own AOP framework.
+
+### The IOC container
 
-## What's in the book
-- ///
-- //