95 lines
2.3 KiB
JavaScript
95 lines
2.3 KiB
JavaScript
const express = require("express");
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const session = require("express-session");
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const bodyParser = require("body-parser");
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const mysql = require("mysql2");
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const cors = require("cors")
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const app = express();
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const port = 3000;
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const db = mysql.createConnection({
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host: "127.0.0.1",
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port: 3306,
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user: "root",
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password: "123456",
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database: "express_db"
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})
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db.connect((err) => {
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if (err) {
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console.log("Error connect to MySQL database:", err);
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return;
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}
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console.log("Connected to MySQL database");
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})
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app.use(bodyParser.urlencoded({ extended: false }));
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app.use(bodyParser.json());
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app.use(cors({
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origin: "http://127.0.0.1:3000",
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method: ["GET", "POST"],
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allowedHeaders: ['Content-Type', "Authorization"]
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}))
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app.use(session({
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secret: "secret-key",
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resave: false,
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saveUninitialized: true,
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cookie: { secret: false }
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}));
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const isAuthorization = (req, res, next) => {
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if (req.session.user)
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next();
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else
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res.status(401).send("You are not authorization")
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};
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app.post("/login", (req, res) => {
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const { username, password } = req.body;
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const sql = "SELECT username, password FROM users WHERE username = ? AND password = ?"
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db.query(sql, [username, password], (err, result) => {
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if (err) {
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res.status(500).send("query database failed");
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return;
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}
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if (result.length > 0) {
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req.session.user = result[0];
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res.send("Login successful!");
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} else {
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res.send("Login failed.");
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}
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})
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});
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app.post("/register", (req, res) => {
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const { username, password } = req.body;
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const sql = "INSERT INTO users (username, password) VALUES (?, ?)"
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db.query(sql, [username, password], (err, result) => {
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if (err) {
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console.log(err);
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res.status(500).send("query database failed");
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return
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}
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res.send("Register successful!");
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})
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})
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app.get("/ucenter", isAuthorization, (req, res) => {
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const user = req.session.user;
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res.send(`hello ${user.username}, welcome to ucenter`);
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})
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app.get("/orders", isAuthorization, (req, res) => {
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const user = req.session.user;
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res.send(`hello ${user.username}, welcome to orders`);
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})
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app.listen(port, () => {
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console.log(`Server is running on http://localhost:${port}`);
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})
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