2020 summary: industrial software development under Internet thinking

2020 The year-end summary of the year came as scheduled as in previous years , This year is a special year , The outbreak , The people of the whole country unite as one , Support Wuhan , Control the epidemic situation in Wuhan perfectly , Then I went through a whole year of anti epidemic life , Witnessed the collapse of one store after another 、 Stand up , Companies filed for bankruptcy 、 Another company applied for registration . This year , Witness too much sorrow 、 Desolate also felt too much moved and happy ,2020 The year is destined to leave a thick and colorful year in history

2020 For me , A hardworking farmer , It's also a big year , Because of some of my experiences , Read some books , My perception has changed . When you write a summary , Leave a message for yourself

" I hope in ten years , I can still stick to the road of blogging

Get down to business , Sum up this year's technical learning content and personal experience

• from Framework Winfrom The transformation of .NET CORE5.0 WPF
• GUI The bottleneck problem of fat client is solved
• Technological breakthroughs

from Framework Winfrom The transformation of .NET CORE5.0 WPF

background

As a .NET Started as a desktop application programmer , All year round Winfrom Development , Everyday coding is , Control drag and drop 、CRUD And so on . Winform Has always been a Microsoft Stronghold , On the web side, it is Java Left behind more than a dozen blocks , But as the .Net Core Release ,GitHub Upper .NET CORE The open source , bring .NET CORE More powerful . stay .NET CORE5.0 Publishing , Added 3.x It hasn't been before Winfrom platform 、WPF platform , follow Microsoft In the footsteps of , Early in 2019Preview In the internal test , Transfer to .NET CORE5.0.

reason

from Winfrom turn WPF The reason for this is the improvement of the concept of digital visualization , Conventional Winfrom Although it's incredibly functional , But with the increasing demand for visual effects from users ,WPF The development under the platform has become an inevitable channel .

WPF Development according to MVVM frame , take UI Separate from business logic , Of course. Winfrom It is also suitable for , But the concept is not like WPF So strongly proposed in development

The process

1、 design code

Talking about the concept of digital Visualization , I have to mention the design specifications ,TOB Although all along , The aesthetic requirements are not too high , But with the increasing beautification of similar products , Driven by competition , beautiful , Has become an integral part of software

In the face of a wide range of design specifications on the market , Here I recommend a very useful design specification for my application  MaterialDesign, The design specification provides a magnificent style , Very practical

GitHub Open source links

Transition effect

Detail animation

2、MVVM Frame selection

There are many kinds of open source on the market MVVM frame , But each framework has its own characteristics , List below , I use it after deep understanding and comparison MVVM Light Toolkit  and Microsoft Prism Two kinds of ,MVVMLight It's a lightweight application , It's enough to deal with small application development ,Prism The predecessor of the framework is Composite Application Guidance for WPF and Silverlight, A lot of information on the Internet is complicated , Actually, I understand it , It's simple , Here is an article about Prism Introduction to , After reading it, you can get started .

MVVM The framework is listed below ：

• MVVM Light Toolkit
• Microsoft Prism
• Calcium SDK
• Caliburn
• Caliburn
• Silverlight.FX
• nRoute:

With design specifications 、MVVM frame ,WPF Development in attributes Xaml On the basis of language , You can set sail .

GUI The bottleneck problem of fat client is solved

background

Applied in the industrial field GUI, from Winfrom go to WPF, Great success in visual effects , But only the improvement of visual effect , That's not enough . Those who are familiar with the industrial field know that ,OPC It is an automatic control protocol widely used in industry ,OPCServer There is a bottleneck in the number of subscription points , The increase in the number of client subscriptions will affect OPCServer Performance of , Too much subscription can lead to OPCServer Downtime . meanwhile , Fat customers GUI Applied in industry , Data refresh needs to be very high , It means that the frequency of database polling is high （ The problem of active database push , We can discuss it elsewhere ）

Solution

Conventional CS There are few like BS That way, the front and back ends are clearly separated , Tradition CS in Client And Server Partial separation , Or the problem of less separation highlights sharpness here .

To solve this situation ,Server End separation , Use multiple clients to access one Server, This Server As OPCServer Proxy server for , Reduce OPCServer The number of subscription points becomes the core of the solution .

do Server, common Webserver、WCF It's optional , But now big Web The trend of , So that we can follow Restful API How to build the interface , More worthy of recommendation

Use .NET CORE5.0 establish Web API It's the only way . While using .Net Core do Server, The pressure of data can be balanced through the Internet commonly used load balancing 、 Microservices 、Grpc Communications 、MQ、Dock、K8s And other related technologies ,.NetCore Perfect support for these applications .

Technology is introduced

Use .Net Core establish Web API And commonly used CS There are many differences in creating projects , You can get started through the following two documents .NET CORE.

• ASP .NET CORE Create project process and initial template file Introduction
• ASP .NET CORE Introduction to startup mechanism and operation mechanism

If there is no .net The basics can be quickly learned here

After having the basic knowledge ,.NET CORE Development has to mention a framework ABP,ABP yes ASP .NET Boilerplate For short ,ABP Is an open source and document friendly application framework .ABP It's not just a framework , It also provides a practical Domain Driven Design (DDD) The architecture model of .

Load balancing 、Dock、K8s It's about deployment technology Microservices 、Grpc、MQ Coding implementation technology ,ABP Provides a framework , Development for these applications has greatly reduced time

Through the following ABP Basic knowledge of , Can take you fast ABP introduction

ABP Basic knowledge structure

Technological breakthroughs

Before this article was published , Technology has never been used MaterialDesign + Prsim + ABP The development of the combination of the three frameworks , As the first person to taste crabs , I'm very happy to share this year's technology with you , I hope my attempt , Can help you ！