Question

我正在写一个简单的帖子。我的代码如下：

var express    = require('express');        
var app        = express();                
var bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
var port = process.env.PORT || 8080;        
var router = express.Router();             
var mongoose   = require('mongoose');
mongoose.connect('mongodb://node:node@novus.modulusmongo.net:27017/Iganiq8o');
router.use(function(req, res, next) {

    console.log('Something is happening.');
    next(); 
});enter code here

router.get('/', function(req, res) {
    res.json({ message: 'hooray! welcome to our api!' });   
});

var Bear     = require('./app/models/bears');
router.route('/bears')    
.post(function(req, res) {
    var bear = new Bear();     
    bear.name = req.body.name;  
    bear.save(function(err) {
        if (err)
            res.send(err);

        res.json({ message: 'Bear created!' });
    });

});

app.use('/api', router);
app.listen(port);
console.log('Magic happens on port ' + port);

我之前收到了以下错误

failed to connect to [novus.modulusmongo.net:27017]

我通过更新mongoose纠正了，但现在我仍然得到另一个错误：

/node_modules/mongoose/node_modules/mongodb/lib/server.js:242
    process.nextTick(function() { throw err; })
                                  ^

错误：连接ETIMEDOUT 54.209.84.209:27017

Answer 1

尝试使用以下示例

var mg= require('mongoose');
var db = mg.connection; 
mg.connect('mongodb://node:node@novus.modulusmongo.net:27017/Iganiq8o');

db.on('open', function (ref) {
    console.log('open connection to mongo server.');
});

db.on('connected', function (ref) {
   console.log('Connected connection to mongo server.');
});

db.on('disconnected', function (ref) {
  console.log(ref);
  console.log('disconnected connection.');  
});

db.on('close', function (ref) {
   console.log('close connection.');
});

db.on('error', function (ref) {
  console.log(ref);
    console.log('Error connection.');
});

db.on('reconnected', function () {
  console.log('MongoDB reconnected!');
});

以下是我得到的错误。

 { MongoError: failed to connect to server [novus.modulusmongo.net:27017] on first connect
at Pool.<anonymous> (E:\v2.4.1\node_modules\mongoose\node_modules\mongodb-core\lib\topologies\server.js:313:35)
at emitOne (events.js:96:13)
at Pool.emit (events.js:188:7)
at Connection.<anonymous> (E:\v2.4.1\node_modules\mongoose\node_modules\mongodb-core\lib\connection\pool.js:260:12)
at Connection.g (events.js:291:16)
at emitTwo (events.js:106:13)
at Connection.emit (events.js:191:7)
at Socket.<anonymous> (E:\v2.4.1\node_modules\mongoose\node_modules\mongodb-core\lib\connection\connection.js:162:49)
at Socket.g (events.js:291:16)
at emitOne (events.js:96:13)
at Socket.emit (events.js:188:7)
at emitErrorNT (net.js:1278:8)
at _combinedTickCallback (internal/process/next_tick.js:74:11)
at process._tickCallback (internal/process/next_tick.js:98:9)
 name: 'MongoError',
 message: 'failed to connect to server [novus.modulusmongo.net:27017] on first connect' }

所以我觉得它本质上只是连接字符串或端口或用户名或密码不正确。尝试通过简单地更改连接字符串，端口，用户名或密码来连接上面的代码。

请记住，27017不是托管服务器上专门的默认端口

尝试使用mlab并查看是否将其免费连接进行测试并在此处获取您的连接字符串https://mlab.com/以查看您的所有代码是否完美运行

希望能帮到你

在Express js中进行POST查询时连接ETIMEDOUT错误

1 个答案: