嘗試連接到Heroku：MongoParseError:URImalformedmcannotbeparsed-有解無憂

我正在嘗試將我的應用程式發布到 Heroku 上課，但它一直在崩潰。這是我收到的錯誤代碼。我不完全確定發生了什么，H10 錯誤是一個籠統的陳述，也許這里有人可以解釋一下。這就是我在使用 heroku logs --tail 時得到的結果。編輯：我的應用程式在我的本地機器上運行良好，我只在嘗試發布到 Heroku 時出現此錯誤

2022-02-13T18:27:21.000000 00:00 app[api]: Build started by user nmendez6594@gmail.com
2022-02-13T18:27:38.841499 00:00 app[api]: Release v5 created by user nmendez6594@gmail.com
2022-02-13T18:27:38.841499 00:00 app[api]: Deploy 7d112609 by user nmendez6594@gmail.com
2022-02-13T18:27:39.000000 00:00 app[api]: Build succeeded
2022-02-13T18:27:39.104174 00:00 heroku[web.1]: State changed from crashed to starting
2022-02-13T18:27:40.901836 00:00 heroku[web.1]: Starting process with command `npm start`
2022-02-13T18:27:42.058731 00:00 app[web.1]: 
2022-02-13T18:27:42.058745 00:00 app[web.1]: > budget-app@1.0.0 start
2022-02-13T18:27:42.058746 00:00 app[web.1]: > node server.js
2022-02-13T18:27:42.058746 00:00 app[web.1]: 
2022-02-13T18:27:42.395832 00:00 app[web.1]: App running on port 55680!
2022-02-13T18:27:42.401378 00:00 app[web.1]: /app/node_modules/mongodb/lib/core/uri_parser.js:580
2022-02-13T18:27:42.401379 00:00 app[web.1]: return callback(new MongoParseError('URI malformed, cannot be parsed'));
2022-02-13T18:27:42.401380 00:00 app[web.1]: ^
2022-02-13T18:27:42.401380 00:00 app[web.1]: 
2022-02-13T18:27:42.401380 00:00 app[web.1]: MongoParseError: URI malformed, cannot be parsed
2022-02-13T18:27:42.401381 00:00 app[web.1]: at parseConnectionString (/app/node_modules/mongodb/lib/core/uri_parser.js:580:21)
2022-02-13T18:27:42.401381 00:00 app[web.1]: at connect (/app/node_modules/mongodb/lib/operations/connect.js:283:3)
2022-02-13T18:27:42.401382 00:00 app[web.1]: at /app/node_modules/mongodb/lib/mongo_client.js:284:5
2022-02-13T18:27:42.401382 00:00 app[web.1]: at maybePromise (/app/node_modules/mongodb/lib/utils.js:692:3)
2022-02-13T18:27:42.401382 00:00 app[web.1]: at MongoClient.connect (/app/node_modules/mongodb/lib/mongo_client.js:280:10)
2022-02-13T18:27:42.401382 00:00 app[web.1]: at /app/node_modules/mongoose/lib/connection.js:836:12
2022-02-13T18:27:42.401383 00:00 app[web.1]: at new Promise (<anonymous>)
2022-02-13T18:27:42.401383 00:00 app[web.1]: at NativeConnection.Connection.openUri (/app/node_modules/mongoose/lib/connection.js:832:19)
2022-02-13T18:27:42.401384 00:00 app[web.1]: at /app/node_modules/mongoose/lib/index.js:351:10
2022-02-13T18:27:42.401384 00:00 app[web.1]: at /app/node_modules/mongoose/lib/helpers/promiseOrCallback.js:32:5
2022-02-13T18:27:42.401384 00:00 app[web.1]: at new Promise (<anonymous>)
2022-02-13T18:27:42.401384 00:00 app[web.1]: at promiseOrCallback (/app/node_modules/mongoose/lib/helpers/promiseOrCallback.js:31:10)
2022-02-13T18:27:42.401384 00:00 app[web.1]: at Mongoose._promiseOrCallback (/app/node_modules/mongoose/lib/index.js:1149:10)
2022-02-13T18:27:42.401385 00:00 app[web.1]: at Mongoose.connect (/app/node_modules/mongoose/lib/index.js:350:20)
2022-02-13T18:27:42.401385 00:00 app[web.1]: at Object.<anonymous> (/app/server.js:19:10)
2022-02-13T18:27:42.401385 00:00 app[web.1]: at Module._compile (node:internal/modules/cjs/loader:1103:14)
2022-02-13T18:27:42.521294 00:00 heroku[web.1]: Process exited with status 1
2022-02-13T18:27:42.598710 00:00 heroku[web.1]: State changed from starting to crashed
2022-02-13T18:27:48.281004 00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=budget-app-pwa4.herokuapp.com request_id=5de2651b-5f3f-4a1e-84f2-18c0123b8dd7 fwd="32.215.142.46" dyno= connect= service= status=503 bytes= protocol=https
2022-02-13T18:27:49.746492 00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=budget-app-pwa4.herokuapp.com request_id=f15d0dc1-7a19-49e1-a743-13f31cac6c31 fwd="32.215.142.46" dyno= connect= service= status=503 bytes= protocol=https

這是我的 server.js 檔案

const express = require("express");
const logger = require("morgan");
const mongoose = require("mongoose");
const compression = require("compression");

const PORT = process.env.PORT || 3001;
const MONGODB_URI = process.env.MONGODB_URI || "mongodb://localhost/budget";

const app = express();

app.use(logger("dev"));

app.use(compression());
app.use(express.urlencoded({ extended: true }));
app.use(express.json());

app.use(express.static("public"));

mongoose.connect(MONGODB_URI, {
  useNewUrlParser: true,
  useFindAndModify: false,
  useUnifiedTopology: true
});

// routes
app.use(require("./routes/api.js"));

app.listen(PORT, () => {
  console.log(`App running on port ${PORT}!`);
});

uj5u.com熱心網友回復：

查看日志檔案，您可以看到堆疊的頂部（在引發例外的點）指向parseConnectionString呼叫。正如您很可能推斷的那樣（因為您將其包含在標題中），上面的行是關于正在發生的事情的重要線索：

MongoParseError：URI 格式錯誤，無法決議

這表明您提供給mongoose.connect函式的連接字串存在問題。鑒于您共享的代碼，這只能是無效process.env.MONGODB_URI值或后備mongodb://localhost/budget的結果。根據配置 MongoDB 實體的方式，我可能傾向于首先檢查環境變數的值，但如果您對此不確定，最好先確定您的應用程式正在使用這兩個值中的哪一個（即，您可以記錄這個）。

總體而言，該問題似乎與您用于連接 MongoDB 實體的連接字串有關，而不是由您的應用程式問題明確引起的。

uj5u.com熱心網友回復：

您好，謝謝大家的幫助。我的問題是我在 URI 字串中使用了我的 Mongo 用戶名/密碼登錄資訊，而不是我的 Mongo 資料庫用戶名/密碼組合。我不確定這是否有意義，但我已經啟動并運行了。再次感謝你！

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標籤：节点.js mongodb heroku 猫鼬 heroku-cli

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