安装mysql
入门
先记下安装完使用mysql的遇到的问题，数据库连接报错： ER_NOT_SUPPORTED_AUTH_MODE: Client does not support authentication protocol requested by server; consider upgrading MySQL client
原因：mysql8.0以上加密方式，Node sql还不支持。
解决：
mysql> alter user 'root'@'localhost' identified with mysql_native_password by '123456';
Query OK, 0 rows affected (0.27 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.08 sec)
项目启动和路由文件：
serve.js: `const express = require('express'); const cors = require('cors');
const app = express();
var corsOptions = { origin: "http://localhost:3000" };
app.use(cors(corsOptions));
// parse requests of content-type - application/json app.use(express.json());/* bodyParser.json() is deprecated */
// parse requests of content-type - application/x-www-form-urlencoded app.use(express.urlencoded({ extended: true })); /* bodyParser.urlencoded() is deprecated */
app.get('/',(req,res) => { res.json({message: 'welcon to application'}) })
require("./app/routes/tutorial.routes.js")(app);
// set port, listen for requests
const PORT = process.env.PORT || 8080;
app.listen(PORT, () => {
console.log(Server is running on port ${PORT}.);
});`
./app/routes/tutorial.routes.js:
`module.exports = app => { const tutorials = require("../controllers/tutorial.controller.js");
var router = require("express").Router();
// Create a new Tutorial
router.post("/", tutorials.create);
// Retrieve all Tutorials
router.get("/", tutorials.findAll);
// Retrieve all published Tutorials
router.get("/published", tutorials.findAllPublished);
// Retrieve a single Tutorial with id
router.get("/:id", tutorials.findOne);
// Update a Tutorial with id
router.put("/:id", tutorials.update);
// Delete a Tutorial with id
router.delete("/:id", tutorials.delete);
// Delete all Tutorials
router.delete("/", tutorials.deleteAll);
app.use('/api/tutorials', router);
};`
