• views: 127
• date: 1 August 2025
• posted by: 0nelove

From scratch build a Java RPC framework using Netty, Kryo, Reflection, Spring Boot advanced features, custom annotations
What you'll learn
Understand the fundamentals of RPC (Remote Procedure Call) and how distributed systems communicate through custom protocols.
Master Spring Boot's advanced extension mechanisms, including custom annotations, ImportBeanDefinitionRegistrar, FactoryBean, and dynamic bean injection.
Master Java's core reflection mechanisms to dynamically generate proxy objects and invoke methods at runtime.
Apply advanced Java techniques such as annotations, class metadata scanning, and runtime type inspection.
Use Netty to implement efficient non-blocking network communication between client and server.
Design custom serialization and deserialization protocols to transfer complex objects across the wire.
Gain the skills to design and implement your own Java middleware frameworks, transitioning from framework user to framework creator.
Build a fully functional Java RPC framework from scratch, writing every line of code without using third-party libraries.
Requirements
Basic experience with object-oriented programming and Java development workflows (Maven or Gradle).
Solid understanding of core Java concepts such as classes, interfaces, exceptions, and generics.
Familiarity with Spring Boot and dependency injection is recommended, but not strictly required.
Some exposure to networking concepts (HTTP, TCP/IP) will be helpful but not mandatory.
Description
Are you tired of just using frameworks and libraries without knowing how they work inside?This course teaches you how to build a real-world RPC framework from scratch, with a strong focus on advanced Spring Boot techniques. You won't just use Spring Boot — you'll learn how to extend its internal mechanisms to support dynamic proxy injection, custom annotation scanning, Bean lifecycle hooks, and more.You'll start by building a Netty-based communication core, defining your own protocol, encoder, and decoder. Then, you'll integrate high-performance serialization using Kryo to efficiently transmit objects across the network.Where this course truly shines is in its Spring Boot integration:Use ImportBeanDefinitionRegistrar to extract the startup class's metadata and scan interfaces dynamicallyImplement SmartInitializingSingleton to scan all available RPC service methods at runtimeUse BeanDefinitionRegistryPostProcessor and FactoryBean to register and inject proxy objects automaticallyDesign custom annotations that trigger client creation and connection logic on application startupYou'll also implement service discovery, heartbeat detection, connection management, and fallback support — everything a production-grade RPC system needs.Every single line of code is written from scratch — no black boxes, no magic.By the end of this course, you'll have built a complete framework similar in architecture to Dubbo or OpenFeign — but every single line is handcrafted, explained, and deeply integrated with Spring Boot.
Who this course is for
Java developers who want to level up from using frameworks to building them.
Backend engineers eager to understand the inner workings of RPC systems, serialization, and network communication.
Spring Boot users who wish to master its advanced extension points, such as custom annotations and bean lifecycle manipulation.
Engineers interested in middleware development, distributed systems, or building lightweight alternatives to existing tools like gRPC or Dubbo.
Experienced coders tired of repetitive CRUD work and looking for a technical breakthrough.
Homepage

https://www.udemy.com/course/java-rpc-framework-create-your-own-with-spring-boot-netty/

   
   
   

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