Node.js A simple example in the Development Guide (MySQL edition) _javascript tips

Anyway
1. Why would you want to write this article?
A: Because in the process of reading this book, the usage is different from the book since the Nodejs version is upgraded.
Also because Nodejs this thing is really good, is worth studying.
2. What is the difference between my example and the example in the book?
A: Nodejs version is different, I use the latest version of the example. The database is different, the book uses is the MONGDB, I use is the MySQL.

Models-> is used to put the model object, the book example has post topic and user two objects
Node_modules->nodejs modules, such as MySQL, Express, Connect-flash, Ejs, jade, etc.
Public-> is used to store public resources, such as pictures, JavaScript, CSS, etc.
Routes-> store routing files to handle various get, POST requests (which need to be configured in App.js)
Utils-> Tool class, where the uuid.js is used to generate IDs
Views-> Store page file, here is the same as the book is Ejs template engine
App.js-> Project Entrance
Database.js->mysql Database base class
package.json-> system configuration files (including version information for some modules)
Setting.js-> Database configuration file