itstack demo design
1.0.0
Author: Brother Xiao Fu, Java Developer, ✏️ Wormhole · Technology Stack, author, ? CSDN blog expert
This code base is a technical summary of the learning process of the author, Brother Fu, who has been engaged in front-line Internet
Javadevelopment for many years. It aims to provide everyone with a clear and detailed learning tutorial, focusing more on writing core Java content. If this warehouse can help you, please support it (follow, like, share)!
Design pattern practical projects :把设计模式在项目中运用起来，会更加扎实的掌握！
business projects
component project
The author of this book,
小傅哥, spent 50 days and extracted 22 real business scenarios from the actual business development of the Internet, such as transactions, marketing, flash sales, middleware, source code, etc., and wrote a 180,000-word, 271-page practical Java Programming materials. If the book contains content that is difficult to understand, it must be that the author lacked necessary description and strict calibration during the writing process. Thank you for submitting your opinions or questions to me. You are also welcome to interact with me more to make progress and grow together.
点击扫码, reply:设计模式内容补充、添加类图、重画图稿、全书彩印book. It is a design pattern that can be read at hand at any time. Thank you for your support. 小傅哥Java 原创版本小傅哥Java 原创版本Welcome more friends to contribute other versions of this design pattern and I will add links for you.
Hello, world of design! Hello, world of design patterns!
Welcome here, I’m glad you can get this book. If you can persist in reading it and practice according to the examples in the book, then in the world of programming development, there will be one more person who can write good code. , and also reserves a talent for architect training.
Maybe you have some understanding of design patterns before, but they are not used much in actual business development. Most of the time, ifelse assembly business processes are piled up on a large area, and the only way to iterate requirements and logic supplements is to piece together them. Press Ctrl+C , Ctrl+V .
So in order to enable more programmers to better accept design thinking and architectural thinking, and be able to apply it to actual business scenarios. The author of this book,小傅哥, invested 50 days in 22 real-life scenarios such as transactions, marketing, flash sales, middleware, source code, etc., to learn the application skills that can be used in the practical use of design patterns. .
Who invented design patterns?
The concept of design patterns was first proposed by克里斯托佛·亚历山大in his book 《建筑模式语言》 . This book introduces the "language" of urban design and provides 253 patterns to describe towns, neighborhoods, houses, gardens, rooms and western structures. The basic unit of such "language" is the pattern. Later, four authors,埃里希·伽玛,约翰·弗利赛德斯,拉尔夫·约翰逊and理查德·赫尔姆embraced the concept of patterns. In 1994, they published the book 《设计模式： 可复用面向对象软件的基础》 , applying the concept of design patterns to the field of program development.
In fact, some people have not carefully read books and materials related to design patterns, but they can still write excellent code. This is mainly due to the experience refined through many years of programming through the tempering of many projects and the continuous pursuit of programming. This experience will ultimately be almost consistent with what is mentioned in the design pattern, which also requires high cohesion, low coupling, scalability, and reusability. You may also have a similar experience. When studying the source code of some frameworks, you find that some of the designs in it are the same as when you were developing.
Why can't I learn design patterns?
Money was spent and books were bought. The code is still a mess! Design patterns are developed guiding ideas refined from years of experience. Just like I tell you how to ride a bicycle or how to drive a car, but as long as you have not run thousands of kilometers, all you can remember is the theory, and you will still feel panicked if you want to get on the road!
Therefore , at the beginning of this design pattern topic series, we will take you to use the idea of design patterns to optimize the code. In this way, you can learn the experience of design patterns and integrate them into yourself. Of course, more practice is needed here. Only when humans and vehicles are integrated can we build more reasonable code based on design patterns.
reading suggestions
This book is a practical book rather than a theoretical introductory book. Each chapter has a corresponding complete code. During the learning process, you need to refer to the chapters in the book and learn the code together. At the same time, you need to understand and run the code during the learning process. After completing the study, summarize the knowledge points and think about how to use this design pattern in your own business scenarios.
creational pattern
structural pattern
behavioral patterns
Thanks to the following people for their contributions to this warehouse or their appreciation for Brother Fu. Of course, these are not the only contributors, so I won’t list them all here. If you would like to be added to this list and have submitted an Issue or PR, please contact me.
?Thank you everyone for your contribution to warehouse construction
Up to this point, all the content of design patterns has been explained. There may be some inaccurate descriptions or typos in the book due to the author's limited level. You are welcome to submit it to me, and you are also welcome to discuss relevant technical content with me. The author, Brother Fu, is very willing to communicate with colleagues and improve each other's skills.
