问题
I started new project for Retail Shop, I need to connect Angular 2/5 with MySQL Database using Node or any other method. I need Examples for Select, Create, Delete, Update. for now i need to create Login Page.
回答1:
Well connecting Angular???
First learn that Angular, front end, does never connect to any database directly (not counting a New England db or LocalStorage as Database).
You need node or any other server side technology and then serve a REST API for providing data to your front end applications. SO actually your front end app in Angular is a complete separate application and your server side application will only connect to DB, handle logic and serve a REST API.
I use Sequelize for easy connecting and writing queries in JSON syntax.
Some more resources:
https://www.sitepoint.com/user-authentication-mean-stack/ https://medium.com/of-all-things-tech-progress/starting-with-authentication-a-tutorial-with-node-js-and-mongodb-25d524ca0359
Full Example app: http://jasonwatmore.com/post/2017/02/22/mean-with-angular-2-user-registration-and-login-example-tutorial
回答2:
The only way you can do that is through http requests to the nodeJs server, since Angular runs in the web browser, while node runs on a server (javascript execution environment). To create an Http service in Angular you can follow this link. In this way the nodejs server will be able to receive the data and be able to process them through a connection to mysql.
来源：https://stackoverflow.com/questions/50090777/how-to-connect-angular-2-with-mysql-database-using-nodejs