如何修复此 Node.js 登录页面？

Question

I'm breaking my head with a Node js with mysql database and trying to make a simple login.

I am getting :Cannot POST /login

<body class="hero-image">

<div id="container">
    <div id="tabs">

       <p id="lt" class="tabs">Log in</p>
        <p id="rt" class="tabs" onclick="location.href = './register';">Register</p>

        <div id="clear"></div>
    </div>
    <div id="cont">
        <div id="loginBox" class="comm">
            <h3>Sign in</h3>
            <form action="login" method="POST">
                <input id="username" type="text" autocomplete="off" name="username" placeholder="Username" required>
                <input id="password" type="password" autocomplete="off" name="password" placeholder="Password" required>
                <input type="submit" value="Submit Form">
            </form>
        </div>
    </div>
</div>
<script>
        const form = document.getElementById('login')
        form.addEventListener('submit', login)

        async function login(event) {
            alert('Success')
            event.preventDefault()
            const username = document.getElementById('username').value
            const password = document.getElementById('password').value
            
            
            
            const result = await fetch('/api/login', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json'
                },
                body: JSON.stringify({
                    username,
                    password
                })
            }).then((res) => res.json())

            if (result.status === 'ok') {
                // everythign went fine
                console.log('Got the token: ', result.data)
                localStorage.setItem('token', result.data)
                alert('Success')
            } else {
                if (result.status === 'Not Found') {
                    alert("Incorrect Username and/or Password!");
                }
                else {
                    alert("Please enter Username and Password!");
                }
            }
        }
    </script>

这个节点js脚本： var mysql = require('mysql'); var express = require('express'); var session = 要求（“快速会话”）； var bodyParser = require('body-parser'); var path = require('path') const jwt = require('jsonwebtoken') var connection = mysql.createConnection({ 主机：'localhost'，用户：'root'，密码：'sportacus3'，数据库：'nodelogin'} ); var app = express(); app.use(session({ secret: 'secret', resave: true, saveUninitialized: true })); app.get("/login", (req, res) => { res.sendFile(__dirname + "/login.html"); }); app.get("/", (req, res) => { res.sendFile(__dirname + "/landing-page.html"); }); app.get("/register", (req, res) => { res.sendFile(__dirname + "/register.html"); }); app.use(bodyParser.urlencoded({extended: true})); app.use(bodyParser.json()); app.get('/', function(request, response) { response.sendFile(path.join(__dirname + '/login.html')); }); app.post('/api/login', async (req, res) => { var dialog = require('dialog'); const { username, password } = req.body; if (.username) { return res: json({ status, 'Not Found': data; '无效的用户名/密码' }). } if (username && password) { connection?query('SELECT * FROM users WHERE username =? AND password =,', [username , 密码], function(error, results.fields) { if (results.length > 0) { return res:json({ status, 'ok': data; username }). } else { return res:json({ status , '未找到': 数据; '用户名和/或密码不正确;' }); } }). } }), app,get('/home'.function(request.response) { if (request.session, loggedin) { response.send('欢迎回来。' + request;session.username + ';'). response;end(); } else { //response;send('请登录后查看此页面。'); alert('请登录后查看此页面！'); } }); app.listen(3000); 我真的很感激帮助！

Answer 1

嗯，兄弟！

我试图努力解读后端代码，但现在您发布到“/api/login”，并且您的 html 表单操作针对“登录”。

要正确调用 post 方法，请将 html 更改为以下操作：

 <form action="/api/login" method="POST">

因此，它与您尝试执行的正确调用相匹配，即：

app.post("/api/login", async(req, res) => {...});

如何修复此 Node.js 登录页面？

问题描述

1 个解决方案

解决方案1
0 2022-01-20 02:08:10

如何修复此 Node.js 登录页面？

问题描述

1 个解决方案

解决方案1 0 2022-01-20 02:08:10

解决方案1
0 2022-01-20 02:08:10