Question

我正在跟踪一个表达如何连接到mongodb的快速练习。当我运行app.js文件时，收到以下消息：

它应该显示我的console.log消息＆＃34;＆＃39; MongoDB Conneced ....＆＃39;＆＃34;表明它已连接但不是。

const express = require('express');
const exphbs = require('express-handlebars')
const mongoose = require('mongoose');

const app = express();

//Map global promise - get rid of warning
mongoose.Promise = global.Promise;

//connect to mongoose
mongoose.connect('mongodb://localhost/vidjot-dev')
.then(()=>console.log('MongoDB Conneced....'))
.catch(err => console.log(err));

//handlebars Middleware
app.engine('handlebars', exphbs({
defaultLayout: 'main'
}));

app.set('view engine', 'handlebars');

//Index Route
app.get('/', (req, res)=>{
const myTitle="Welcome.";
res.render('INDEX', {
    title:myTitle
});
});

//About Route
app.get('/about', (req, res)=>{
   res.render('ABOUT');
})
const port = 5500;
app.listen(port, ()=> {
console.log(`Server started on port ${port}`);

/*Same as above which is ES6 */
//console.log('Server started on port '+port);
})

Answer 1

确保已在系统中安装mongodb，然后设置其路径。最后，只需在终端mongod中运行命令

注意：还请为数据库创建一个文件夹，例如它要求您创建的文件夹：c：/ db。

然后尝试再次连接

如何正确连接到mongodb

1 个答案: