node.js - URL 格式错误，无法解析

Question

这是我捕获的错误:

这是我的编码文件:

服务器文件

key 文件

我只是使用 mongodb、node 和 reactjs 创建到 mlab 的连接。我正在使用 mongo db 版本 4。

需要你们的帮助。

[nodemon] starting `node server.js`
Error: URL malformed, cannot be parsed
    at module.exports (C:\MERNapps\TestMERN08\node_modules\mongodb\lib\url_parser.js:17:21)
    at deprecated (internal/util.js:47:15)
    at connect (C:\MERNapps\TestMERN08\node_modules\mongodb\lib\operations\mongo_client_ops.js:179:3)
    at connectOp (C:\MERNapps\TestMERN08\node_modules\mongodb\lib\operations\mongo_client_ops.js:283:3)
    at executeOperation (C:\MERNapps\TestMERN08\node_modules\mongodb\lib\utils.js:420:24)
    at MongoClient.connect (C:\MERNapps\TestMERN08\node_modules\mongodb\lib\mongo_client.js:168:10)
    at Promise (C:\MERNapps\TestMERN08\node_modules\mongoose\lib\connection.js:493:12)
    at new Promise (<anonymous>)
    at NativeConnection.Connection.openUri (C:\MERNapps\TestMERN08\node_modules\mongoose\lib\connection.js:490:19)
    at Mongoose.connect (C:\MERNapps\TestMERN08\node_modules\mongoose\lib\index.js:230:15)
    at Object.<anonymous> (C:\MERNapps\TestMERN08\server.js:12:2)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
(node:3696) DeprecationWarning: current URL string parser is deprecated, and will be removed in a future version. To use the new parser, pass option { useNewUrlParser: true } to MongoClient.connect.
server running on port 5000

Answer 1

问题出在您的 key 上。尝试使用:

module.exports= {
  mongoURI : "your-uri-string",
  options:{key:value}
}

并将键用作:

mongoose.connect(db.mongoURI,options);