Reverse Engineering

Vernacular Outline

Reverse engineering is an old-fashioned topic. Here I want to pull it out and talk about it. This is not just a tool as simple as a tool.

Reverse engineering in the project

This must be a meeting in the early stage, then mind map, flow chart, then design database, focus, database, because your function must be persistent, and a project is the most valuableThe main thing is data and business processes, business serves data, and data is the value of the project, so the design of the database is a very important part in my opinion. After the database is designed, what to do next, it must be lazy, use mybatis.jar to generate related dao, dto, do, vo models.

Code structure for reverse engineering

This is the classic mvc, the mode model, the v view, the c control layer, the bad things, but the classic is the classic, the model is the bean in the big direction, and your input parameter in the small direction (request) is the response, the view is what you see, the front end in the big direction, the html page in the small, the control layer is your business code, the data you need after business processing, reverseEngineering is a link between the previous and the next. A project from scratch is afraid that it will kill people, hand it over to the framework to get the model, it will be equivalent to the flesh and blood, and the rest is the supplementary code skeleton (base class and code structure), reverseThe highlight of the project is actually the design of the database, which is not much to introduce, it is all about the accumulated experience of contacting the project

Example of benefits

What is the most powerful technology for an internal project?Just modify the database data, 2018 tax reform, change the database to easily earn hundreds of thousands of dollars, how to do it -> change the document to extend the time for issuing a real invoice, and then modify the database fields and data, which involves reverse engineering