MongooseError \[MongooseServerSelectionError\]：连接 <monitor> 到 52.6.250.237:27017 已关闭

Question

新手上路，请多包涵

我正在尝试通过 post 方法将数据保存在 mongodb 中，并将 mongodb atlas 与 node.js 一起使用，但它一直给我一个错误，我提供了正确的连接字符串和正确的密码。请帮助解决这个问题。谢谢。

这是代码：

 const mongoose = require('mongoose');

const monngodb_url="mongodb+srv://maarij:asdf360@cluster0-j7wis.mongodb.net/authDB?retryWrites=true&w=majority";

mongoose.connect(monngodb_url, {useNewUrlParser: true,useUnifiedTopology: true}).then(()=>{
    console.log("mongodb is connected");
}).catch((error)=>{
    console.log("mondb not connected");
    console.log(error);
});

这是错误：

 server is running on port 3000
{ name: 'myName', email: 'e@mail.com', password: 'abcdefg' }
mondb not connected
MongooseError [MongooseServerSelectionError]: connection <monitor> to 52.6.250.237:27017 closed
    at new MongooseServerSelectionError (D:\react-native\reactNativeBackend\node_modules\mongoose\lib\error\serverSelection.js:22:11)
    at NativeConnection.Connection.openUri (D:\react-native\reactNativeBackend\node_modules\mongoose\lib\connection.js:808:32)
    at Mongoose.connect (D:\react-native\reactNativeBackend\node_modules\mongoose\lib\index.js:333:15)
    at Object.<anonymous> (D:\react-native\reactNativeBackend\db\db.js:5:10)
    at Module._compile (internal/modules/cjs/loader.js:955:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:991:10)
    at Module.load (internal/modules/cjs/loader.js:811:32)
    at Function.Module._load (internal/modules/cjs/loader.js:723:14)
    at Module.require (internal/modules/cjs/loader.js:848:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at Object.<anonymous> (D:\react-native\reactNativeBackend\index.js:4:19)
    at Module._compile (internal/modules/cjs/loader.js:955:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:991:10)
    at Module.load (internal/modules/cjs/loader.js:811:32)
    at Function.Module._load (internal/modules/cjs/loader.js:723:14)
    at Function.Module.runMain (internal/modules/cjs/loader.js:1043:10) {
  message: 'connection <monitor> to 52.6.250.237:27017 closed',
  name: 'MongooseServerSelectionError',
  reason: TopologyDescription {
    type: 'ReplicaSetNoPrimary',
    setName: null,
    maxSetVersion: null,
    maxElectionId: null,
    servers: Map {
      'cluster0-shard-00-01-j7wis.mongodb.net:27017' => [ServerDescription],
      'cluster0-shard-00-02-j7wis.mongodb.net:27017' => [ServerDescription],
      'cluster0-shard-00-00-j7wis.mongodb.net:27017' => [ServerDescription]
    },
    stale: false,
    compatible: true,
    compatibilityError: null,
    logicalSessionTimeoutMinutes: null,
    heartbeatFrequencyMS: 10000,
    localThresholdMS: 15,
    commonWireVersion: null
  },
  [Symbol(mongoErrorContextSymbol)]: {}
}