Heroku应用程序无法连接到mongodb atlas服务器从mlab迁移后

如何解决Heroku应用程序无法连接到mongodb atlas服务器从mlab迁移后

由于不推荐使用，我最近从mlab迁移到了mongodb地图集。我设法成功连接到数据库，并使用mongoDB指南针对其进行了测试，但是当我将环境变量添加到heroku时，它给出了以下错误消息：

MongoNetworkError: Failed to connect to server [cluster-grwbxfbx-shard-00-02.e6jtl.mongodb.net:27017] on first connect [MongoNetworkError: connection 4 to cluster-grwbxfbx-shard-00-02.e6jtl.mongodb.net:27017 closed
2020-11-11T23:53:44.726144+00:00 app[web.1]: at TLSSocket.<anonymous> (/app/node_modules/mongodb/lib/core/connection/connection.js:372:9)
2020-11-11T23:53:44.726144+00:00 app[web.1]: at Object.onceWrapper (events.js:421:26)
2020-11-11T23:53:44.726145+00:00 app[web.1]: at TLSSocket.emit (events.js:314:20)
2020-11-11T23:53:44.726145+00:00 app[web.1]: at net.js:676:12
2020-11-11T23:53:44.726146+00:00 app[web.1]: at TCP.done (_tls_wrap.js:568:7)]
2020-11-11T23:53:44.726147+00:00 app[web.1]: at Pool.<anonymous> (/app/node_modules/mongodb/lib/core/topologies/server.js:438:11)
2020-11-11T23:53:44.726147+00:00 app[web.1]: at Pool.emit (events.js:314:20)
2020-11-11T23:53:44.726148+00:00 app[web.1]: at /app/node_modules/mongodb/lib/core/connection/pool.js:562:14
2020-11-11T23:53:44.726149+00:00 app[web.1]: at /app/node_modules/mongodb/lib/core/connection/pool.js:1009:9
2020-11-11T23:53:44.726149+00:00 app[web.1]: at callback (/app/node_modules/mongodb/lib/core/connection/connect.js:97:5)
2020-11-11T23:53:44.726150+00:00 app[web.1]: at /app/node_modules/mongodb/lib/core/connection/connect.js:124:7
2020-11-11T23:53:44.726150+00:00 app[web.1]: at _callback (/app/node_modules/mongodb/lib/core/connection/connect.js:349:5)
2020-11-11T23:53:44.726151+00:00 app[web.1]: at Connection.errorHandler (/app/node_modules/mongodb/lib/core/connection/connect.js:365:5)
2020-11-11T23:53:44.726151+00:00 app[web.1]: at Object.onceWrapper (events.js:421:26)
2020-11-11T23:53:44.726151+00:00 app[web.1]: at Connection.emit (events.js:314:20)
2020-11-11T23:53:44.726152+00:00 app[web.1]: at TLSSocket.<anonymous> (/app/node_modules/mongodb/lib/core/connection/connection.js:370:12)
2020-11-11T23:53:44.726152+00:00 app[web.1]: at Object.onceWrapper (events.js:421:26)
2020-11-11T23:53:44.726153+00:00 app[web.1]: at TLSSocket.emit (events.js:314:20)
2020-11-11T23:53:44.726153+00:00 app[web.1]: at net.js:676:12
2020-11-11T23:53:44.726153+00:00 app[web.1]: at TCP.done (_tls_wrap.js:568:7)
2020-11-11T23:53:44.812696+00:00 heroku[web.1]: Process exited with status 0
2020-11-11T23:53:44.850554+00:00 heroku[web.1]: State changed from starting to crashed
2020-11-11T23:53:44.854049+00:00 heroku[web.1]: State changed from crashed to starting
2020-11-11T23:53:47.149749+00:00 heroku[web.1]: Starting process with command `npm start`
2020-11-11T23:53:49.907225+00:00 app[web.1]: 

似乎heroku在MONGODB_URI的末尾添加了一个端口。有人知道发生了什么吗？ 我在heroku中的配置变量是：

MONGODB_URI = mongodb+srv://username:[e-mail]/test?retryWrites=true&w=majority

用户名和密码替换为我的管理员用户名和密码。

这也是我连接数据库的代码

import mongoose from 'mongoose'
import options from '../config'

export const connect = (url = options.dbUrl,opts = {}) => {
  return mongoose.connect(url,{ ...opts,useNewUrlParser: true })
}

export const config = {
  secrets: {
    jwt: 'learneverything'
  },dbUrl: process.env.MONGODB_URI || 'mongodb://localhost:27017/api-design'
}

让我知道您是否需要我发布其他内容