我是nodeJS的新手,通过关注youtube上的预告片开始学习,一切顺利,直到我添加连接功能,如果是
mongodb,
mongo.connect("mongodb://localhost:27017/mydb")
当我在cmd(node start-app)上运行我的代码时,得到以下错误,
MongoNetworkError: Failed to connect to server [localhost:27017] on first connect [MongoNetworkError: connect ECONNREFUSED 127.0.0.1:27017]
有人能解释我错过了哪一步吗?
我的代码:
var express = require("express"); var MongoClient = require('mongodb'); var url = "mongodb://localhost:27017/mydb"; var webService = require("./webService"); var server = express(); MongoClient.connect(url,function (err,db) { if (err) throw err; console.log("Database created!"); db.close(); }); server.use(express.urlencoded({ extended: true })); server.set('views',__dirname); server.get('/',function (request,response) { response.sendFile(__dirname + '/MainPage.html'); }); server.get('/Sign',response) { response.render(__dirname + '/Sign.ejs'); }); server.post("/signUp",webService.signUp); server.post("/createUser",webService.createUser); server.listen(5500);