Inicié mi servidor mongodb y el software realmente puede conectarlo.
Imagen de inicio de Mongodb
GIF de error
Mi código de nodo js es
mongoose.connect("mongodb://localhost:27017/chat", { useNewUrlParser: true }).catch(err => console.log(err));y me da el error
MongoNetworkError: failed to connect to server [localhost:27017] on first connect [MongoNetworkError: connection 0 to localhost:27017 closed at Socket.<anonymous> (D:\Web开发\fake-chatroom\server\node_modules\mongodb\lib\core\connection\connection.js:439:9) at Object.onceWrapper (events.js:422:26) at Socket.emit (events.js:315:20) at TCP.<anonymous> (net.js:673:12)] at Pool.<anonymous> (D:\Web开发\fake-chatroom\server\node_modules\mongodb\lib\core\topologies\server.js:438:11) at Pool.emit (events.js:315:20) at D:\Web开发\fake-chatroom\server\node_modules\mongodb\lib\core\connection\pool.js:562:14 at D:\Web开发\fake-chatroom\server\node_modules\mongodb\lib\core\connection\pool.js:995:11 at callback (D:\Web开发\fake-chatroom\server\node_modules\mongodb\lib\core\connection\connect.js:75:5) at D:\Web开发\fake-chatroom\server\node_modules\mongodb\lib\core\connection\connect.js:101:9 at _callback (D:\Web开发\fake-chatroom\server\node_modules\mongodb\lib\core\connection\connection.js:328:7) at Connection.errorHandler (D:\Web开发\fake-chatroom\server\node_modules\mongodb\lib\core\connection\connection.js:343:7) at Object.onceWrapper (events.js:422:26) at Connection.emit (events.js:315:20) at Socket.<anonymous> (D:\Web开发\fake-chatroom\server\node_modules\mongodb\lib\core\connection\connection.js:437:12) at Object.onceWrapper (events.js:422:26) at Socket.emit (events.js:315:20) at TCP.<anonymous> (net.js:673:12)Según la imagen que publicó, mongodb está escuchando en el puerto predeterminado, 27017. Su código está intentando abrir una conexión al puerto 28019, que es la causa del error.
Utilice el número de puerto predeterminado en su código:
mongoose.connect("mongodb://localhost:27017/chat", { useNewUrlParser: true }).catch(err => console.log(err));