我正在一個明確的服務器上連接到數據庫中的Node.js和我有我從已經爲用戶建立一個路由文件訪問我的數據庫的麻煩。當我嘗試提出獲取請求時,我會將其作爲錯誤接收。從路線
「代碼」: 「ER_NO_DB_ERROR」, 「錯誤號」:1046, 「SQLSTATE」: 「3D000」, 「指數」:0
我一直在試圖尋找解決方案在線,但最的答案建議需要我已經做的db.js文件。我有一種感覺,我需要傳遞我在app.js中創建的連接,但我不知道如何執行此操作。我的文件的相關部分如下。數據庫登錄信息已被編輯,我確實在app.js中獲得了成功的連接。我相當新,所以任何幫助將不勝感激,特別是如果有更好的方式來使用db.js中實現的池。
app.js
var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var index = require('./routes/index');
var users = require('./routes/users');
var mysql = require('mysql')
var app = express();
var users = require('./routes/users');
var media = require('./routes/media');
var tv = require('./routes/tv');
var movies = require('./routes/movies');
var db = require('./db.js')
var connection = mysql.createConnection({
port: '3306',
host: '*********************',
user: '********',
password: '******'
})
db.connect(function(err) {
if (err) {
console.log('Unable to connect to MySQL.')
process.exit(1)
} else {
console.log('Successfully connected')
}
})
app.use('/api', users);
型號/ user.js的
var db = require('../db.js');
var passwordHash = require('password-hash');
exports.getAll = function(done) {
db.get().query('SELECT * FROM users', function (err, rows) {
if (err) return done(err)
done(null, rows)
})
}
路線/ users.js
var express = require('express');
var router = express.Router()
var user = require('../models/user');
var db = require('../db.js');
//this doesn't prInt anything currently. This is prompting me to believe I somehow
//need to pass a connection object or am using the pool properly.
console.log(db.get());
router.route('/users').get(function(req, res) {
user.getAll(function(err, users) {
if (err) {
return res.send(err);
}
res.json(users);
});
});
db.js
//這被認爲是主要來自我在網上找到的教程
var mysql = require('mysql')
, async = require('async')
var PRODUCTION_DB = 'app_prod_database'
, TEST_DB = 'app_test_database'
exports.MODE_TEST = 'mode_test'
exports.MODE_PRODUCTION = 'mode_production'
var state = {
pool: null,
//mode: null,
}
exports.connect = function(done) {
state.pool = mysql.createPool({
port: '3306',
host: '***************',
user: '*********',
password: '*******'
//database: mode === exports.MODE_PRODUCTION ? PRODUCTION_DB : TEST_DB
})
//state.mode = mode
done()
}
exports.get = function() {
return state.pool
}
exports.fixtures = function(data) {
var pool = state.pool
if (!pool) return done(new Error('Missing database connection.'))
var names = Object.keys(data.tables)
async.each(names, function(name, cb) {
async.each(data.tables[name], function(row, cb) {
var keys = Object.keys(row)
, values = keys.map(function(key) { return "'" + row[key] + "'" })
pool.query('INSERT INTO ' + name + ' (' + keys.join(',') + ') VALUES (' + values.join(',') + ')', cb)
}, cb)
}, done)
}
exports.drop = function(tables, done) {
var pool = state.pool
if (!pool) return done(new Error('Missing database connection.'))
async.each(tables, function(name, cb) {
pool.query('DELETE * FROM ' + name, cb)
}, done)
}
感謝您的迴應,我添加了這個,現在我得到一個「代碼」:「ER_DBACCESS_DENIED_ERROR」, 「errno」:1044,這是進展。我會看多進,爲什麼我不能夠正確地從這裏訪問我的表 –