Question

我正按照书中的说明操作。我在终端连接到本地数据库或MongoLab在线时没有问题，但无法使用我的Heroku数据库在本地运行我的应用程序：NODE_ENV=production nodemon bin/www

这是我在我的代码中检查使用在线数据库，具体取决于我如何启动应用程序：

if (process.env.NODE_ENV === 'production') {
    dbURI= process.env.MONGOLAB_URI;
}

我手动输入：heroku config:set MONGOLAB_URI=[my uri]并使用heroku config:get MONGOLAB_URI并继续获取：Error: failed to connect to [undefined:27017]

有没有人知道为什么我无法连接？

Answer 1

~ $ node app.js 

/app/node_modules/connect-mongo/node_modules/mongodb/lib/server.js:228
        process.nextTick(function() { throw err; })
                                            ^
Error
    at Error.MongoError (/app/node_modules/connect-mongo/node_modules/mongodb/node_modules/mongodb-core/lib/error.js:13:17)
    at Server.destroy (/app/node_modules/connect-mongo/node_modules/mongodb/node_modules/mongodb-core/lib/topologies/server.js:629:47)
    at Server.close (/app/node_modules/connect-mongo/node_modules/mongodb/lib/server.js:344:17)
    at Db.close (/app/node_modules/connect-mongo/node_modules/mongodb/lib/db.js:267:19)
    at /app/node_modules/connect-mongo/node_modules/mongodb/lib/db.js:196:12
    at null.<anonymous> (/app/node_modules/connect-mongo/node_modules/mongodb/lib/server.js:226:9)
    at g (events.js:180:16)
    at emit (events.js:98:17)
    at null.<anonymous> (/app/node_modules/connect-mongo/node_modules/mongodb/node_modules/mongodb-core/lib/topologies/server.js:238:68)
    at g (events.js:180:16)
    at emit (events.js:98:17)
    at null.<anonymous> (/app/node_modules/connect-mongo/node_modules/mongodb/node_modules/mongodb-core/lib/connection/pool.js:77:12)
    at g (events.js:180:16)
    at emit (events.js:98:17)
    at Socket.<anonymous> (/app/node_modules/connect-mongo/node_modules/mongodb/node_modules/mongodb-core/lib/connection/connection.js:118:49)
    at Socket.g (events.js:180:16)
~ $

^^我看到了以上情况我的联系：

omeMongodbServer：{ 适配器：＆＃39; sails-mongo＆＃39;， url：process.env.MONGOLAB_URI || ＆＃39; mongodb的：//本地主机/ TS＆＃39 ;, }，

Mongoose无法在本地连接到Heroku数据库并且无法连接到process.env.MONGOLAB_URI

1 个答案: