MongoNetworkError：连接 0 到 localhost:27017 已关闭

Question

我不能让它工作。我已经打开了 mongo 和 mongod，这就是我在 git Bash 或 cmd 中编写“node server.js”时得到的：

Running on server27017
Not connected to database MongoNetworkError: connection 0 to localhost:27017 
closed

这是我的代码。

var express = require('express');
var app = express();
var port = 27017;

//Route
app.get('/', function (req, res) {
    res.send('Hello world!');
});


const mongoose = require('mongoose');
const option = {
    socketTimeoutMS: 30000,
    keepAlive: true,
    reconnectTries: 30000
};

mongoose.connect('mongodb://localhost:27017/database1', option).then(function(){
    //connected successfully
    console.log('Successfully connected to database');
}, function(err) {
    //err handle
    console.log('Not connected to database ' + err);
});

//Listen to port
app.listen(port, function(){
    console.log('Running on server' + port);
});

当我在浏览器中写入“ http://localhost:27017/database1 ”时，我得到“看起来您正在尝试通过本地驱动程序端口上的 HTTP 访问 MongoDB。”

Answer 1

Express端口不应该与mongodb端口相同