[英]Node.js doesnot connect with MySQL, PHPMyAdmin
我正在尝试登录到使用mysql存储用户名和密码的系统,但登录页面位于manager.js文件中,如下所示:
var express = require('express');
var router = express.Router();
var async = require('async');
var util = require('../utils/util');
var db = require('../utils/database');
var connection = db.connection();
router.get('/login', function (req, res) {
if (req.session.manager) {
return res.redirect('/');
}
if (req.query.tip == 'error') {
var tip = 'username or password incorrect!';
} else {
var tip = null;
}
res.render('login', { tip: tip });
});
router.post('/login', function (req, res) {
var username = req.body.username;
var password = req.body.password;
var sql = 'SELECT * FROM restaurant_accounts WHERE ra_name=?';
connection.query(sql, [username], function (err, result) {
if (err) throw err;
if (result.length == 0) {
return res.redirect('/manager/login?tip=error');
}
var account = result[0];
if (!util.checkHash(password, account.ra_password)) {
return res.redirect('/manager/login?tip=error');
}
connection.query('SELECT * FROM restaurants WHERE rest_owner_id=?', [account.ra_id], function (err, result) {
if (err) throw err;
var restaurant = result[0];
req.session.manager = {
id: account.ra_id,
name: account.ra_name,
rest_id: restaurant.rest_id,
rest_name: restaurant.rest_name
};
res.redirect('/');
});
});
});
router.get('/logout', function (req, res) {
req.session.destroy();
res.redirect('/manager/login');
});
module.exports = router;
当我在浏览器中键入localhost:80并运行快递服务器时,它将显示以下屏幕:
现在,用户名和密码应该存储在其他人创建的mysql数据库中,我使用phpmyadmin添加数据库并对它具有完全访问权限。 但是当然,因为数据库未链接,所以我无法通过该登录页面,并且显示“ localhost拒绝连接”错误!
以下是我尝试登录页面之前的控制台输出:
C:\Mrestro\RESTaurant_backend-master\rest-server>node bin\www
Express server listening on port 80
GET /manager/login 304 23ms
GET /css/bootstrap.css 304 7ms
GET /css/main.css 304 6ms
GET /js/jquery.min.js 304 11ms
GET /images/bg.jpg 304 2ms
当我输入随机用户名和密码时,输出如下:
C:\Mrestro\RESTaurant_backend-master\rest-server>node bin\www
Express server listening on port 80
GET /manager/login 304 23ms
GET /css/bootstrap.css 304 7ms
GET /css/main.css 304 6ms
GET /js/jquery.min.js 304 11ms
GET /images/bg.jpg 304 2ms
C:\Mrestro\RESTaurant_backend-master\rest-server\web\manager.js:27
if (err) throw err;
^
Error: ER_ACCESS_DENIED_ERROR: Access denied for user 'bjtu'@'localhost' (using password: YES)
at Handshake.Sequence._packetToError (C:\Mrestro\RESTaurant_backend-master\rest-server\node_modules\mysql\lib\protocol\sequences\Sequence.js:51:14)
at Handshake.ErrorPacket (C:\Mrestro\RESTaurant_backend-master\rest-server\node_modules\mysql\lib\protocol\sequences\Handshake.js:103:18)
at Protocol._parsePacket (C:\Mrestro\RESTaurant_backend-master\rest-server\node_modules\mysql\lib\protocol\Protocol.js:280:23)
at Parser.write (C:\Mrestro\RESTaurant_backend-master\rest-server\node_modules\mysql\lib\protocol\Parser.js:74:12)
at Protocol.write (C:\Mrestro\RESTaurant_backend-master\rest-server\node_modules\mysql\lib\protocol\Protocol.js:39:16)
at Socket.<anonymous> (C:\Mrestro\RESTaurant_backend-master\rest-server\node_modules\mysql\lib\Connection.js:109:28)
at emitOne (events.js:77:13)
at Socket.emit (events.js:169:7)
at readableAddChunk (_stream_readable.js:153:18)
at Socket.Readable.push (_stream_readable.js:111:10)
--------------------
at Protocol._enqueue (C:\Mrestro\RESTaurant_backend-master\rest-server\node_modules\mysql\lib\protocol\Protocol.js:141:48)
at Protocol.handshake (C:\Mrestro\RESTaurant_backend-master\rest-server\node_modules\mysql\lib\protocol\Protocol.js:52:41)
at Connection.connect (C:\Mrestro\RESTaurant_backend-master\rest-server\node_modules\mysql\lib\Connection.js:136:18)
at Connection._implyConnect (C:\Mrestro\RESTaurant_backend-master\rest-server\node_modules\mysql\lib\Connection.js:467:10)
at Connection.query (C:\Mrestro\RESTaurant_backend-master\rest-server\node_modules\mysql\lib\Connection.js:212:8)
at Object.handle (C:\Mrestro\RESTaurant_backend-master\rest-server\web\manager.js:26:14)
at next_layer (C:\Mrestro\RESTaurant_backend-master\rest-server\node_modules\express\lib\router\route.js:103:13)
at Route.dispatch (C:\Mrestro\RESTaurant_backend-master\rest-server\node_modules\express\lib\router\route.js:107:5)
at C:\Mrestro\RESTaurant_backend-master\rest-server\node_modules\express\lib\router\index.js:195:24
at Function.proto.process_params (C:\Mrestro\RESTaurant_backend-master\rest-server\node_modules\express\lib\router\index.js:251:12)
C:\Mrestro\RESTaurant_backend-master\rest-server>
所以,我的问题是应该使用什么用户名和密码? 在数据库中哪里可以找到正确的?
编辑: database.js
var mysql = require('mysql');
var c = mysql.createConnection({
host : 'localhost',
// port : '3306',
user : 'root',
password : 'root',
database : 'restaurant'
});
// enable error logging for each connection query
c.on('error', function(err) {
console.log(err.code); // example : 'ER_BAD_DB_ERROR'
});
exports.connection = function() {
return c;
};
在../utils/database中,将用户名设置为“ root”,并保留密码为空或“”,这是Windows Lamp和Xamp设置中的默认设置。
编辑
var mysql = require('mysql');
var c = mysql.createConnection({
host : 'localhost',
// port : '3306',
user : 'root',
password : '',
database : 'restaurant'
});
// enable error logging for each connection query
c.on('error', function(err) {
console.log(err.code); // example : 'ER_BAD_DB_ERROR'
});
exports.connection = function() {
return c;
};
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