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社区首页 >问答首页 >无法运行蒙戈快车与码头组成

问无法运行蒙戈快车与码头组成
EN

Stack Overflow用户
提问于 2021-07-04 06:24:11
回答 4查看 8K关注 0票数 4

这是我在节点js和docker中的第一篇文章，所以请容忍我。我运行一个芒果和蒙戈快速集装箱与码头组成，但芒果快车不运行。当我在没有码头的情况下运行芒果和芒果快车时，它工作得很好。所以，我想我在docker-组合或者节点js代码中遇到了一些问题。

docker-compose.yaml

代码语言：javascript
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version: '3'
services:
  mongodb:
    image: mongo
    ports:
      - 27017:27017
    environment:
      - MONGO_INITDB_ROOT_USERNAME=admin
      - MONGO_INITDB_ROOT_PASSWORD=password
  mongo-express:
    image: mongo-express
    ports:
      - 8080:8081
    environment:
      - ME_CONFIG_MONGODB_ADMINUSERNAME=admin
      - ME_CONFIG_MONGODB_ADMINPASSWORD=password
      - ME_CONFIG_MONGODB_SERVER=mongodb

server.js

代码语言：javascript
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let express = require('express');
let path = require('path');
let fs = require('fs');
let MongoClient = require('mongodb').MongoClient;
let bodyParser = require('body-parser');
let app = express();

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

app.get('/', function (req, res) {
    res.sendFile(path.join(__dirname, "index.html"));
  });

app.get('/profile-picture', function (req, res) {
  let img = fs.readFileSync(path.join(__dirname, "images/profile-1.jpg"));
  res.writeHead(200, {'Content-Type': 'image/jpg' });
  res.end(img, 'binary');
});

// use when starting application locally
let mongoUrlLocal = "mongodb://admin:password@localhost:27017";

// use when starting application as docker container
let mongoUrlDocker = "mongodb://admin:password@mongodb";

// pass these options to mongo client connect request to avoid DeprecationWarning for current Server Discovery and Monitoring engine
let mongoClientOptions = { useNewUrlParser: true, useUnifiedTopology: true };

// "user-account" in demo with docker. "my-db" in demo with docker-compose
let databaseName = "my-db";

app.post('/update-profile', function (req, res) {
  let userObj = req.body;

  MongoClient.connect(mongoUrlLocal, mongoClientOptions, function (err, client) {
    if (err) throw err;

    let db = client.db(databaseName);
    userObj['userid'] = 1;

    let myquery = { userid: 1 };
    let newvalues = { $set: userObj };

    db.collection("users").updateOne(myquery, newvalues, {upsert: true}, function(err, res) {
      if (err) throw err;
      client.close();
    });

  });
  // Send response
  res.send(userObj);
});

app.get('/get-profile', function (req, res) {
  let response = {};
  // Connect to the db
  MongoClient.connect(mongoUrlLocal, mongoClientOptions, function (err, client) {
    if (err) throw err;

    let db = client.db(databaseName);

    let myquery = { userid: 1 };

    db.collection("users").findOne(myquery, function (err, result) {
      if (err) throw err;
      response = result;
      client.close();

      // Send response
      res.send(response ? response : {});
    });
  });
});

app.listen(3000, function () {
  console.log("app listening on port 3000!");
});

如果我运行码头ps，我只能看到mongo正在运行。

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CONTAINER ID   IMAGE     COMMAND                  CREATED          STATUS          PORTS                                           NAMES
d20c4784d316   mongo     "docker-entrypoint.s…"   43 seconds ago   Up 38 seconds   0.0.0.0:27017->27017/tcp, :::27017->27017/tcp   nodeapplications_mongodb_1

当我使用下面的命令运行我的坞-撰写时，我会看到这个日志，其中我怀疑有一个问题。任何帮助都是非常感谢的。

码头-合成-f码头-复合码头。

日志

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mongo-express_1  | Welcome to mongo-express
mongo-express_1  | ------------------------
mongo-express_1  | 
mongo-express_1  | 
mongo-express_1  | (node:7) [MONGODB DRIVER] Warning: Current Server Discovery and Monitoring engine is deprecated, and will be removed in a future version. To use the new Server Discover and Monitoring engine, pass option { useUnifiedTopology: true } to the MongoClient constructor.
mongo-express_1  | Could not connect to database using connectionString: mongodb://admin:password@mongodb:27017/"
mongo-express_1  | (node:7) UnhandledPromiseRejectionWarning: MongoNetworkError: failed to connect to server [mongodb:27017] on first connect [Error: connect ECONNREFUSED 172.19.0.3:27017
mongo-express_1  |     at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1144:16) {
mongo-express_1  |   name: 'MongoNetworkError'
mongo-express_1  | }]
mongo-express_1  |     at Pool.<anonymous> (/node_modules/mongodb/lib/core/topologies/server.js:438:11)
mongo-express_1  |     at Pool.emit (events.js:314:20)
mongo-express_1  |     at /node_modules/mongodb/lib/core/connection/pool.js:562:14
mongo-express_1  |     at /node_modules/mongodb/lib/core/connection/pool.js:995:11
mongo-express_1  |     at /node_modules/mongodb/lib/core/connection/connect.js:32:7
mongo-express_1  |     at callback (/node_modules/mongodb/lib/core/connection/connect.js:280:5)
mongo-express_1  |     at Socket.<anonymous> (/node_modules/mongodb/lib/core/connection/connect.js:310:7)
mongo-express_1  |     at Object.onceWrapper (events.js:421:26)
mongo-express_1  |     at Socket.emit (events.js:314:20)
mongo-express_1  |     at emitErrorNT (internal/streams/destroy.js:92:8)
mongo-express_1  |     at emitErrorAndCloseNT (internal/streams/destroy.js:60:3)
mongo-express_1  |     at processTicksAndRejections (internal/process/task_queues.js:84:21)
mongo-express_1  | (node:7) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)

由 @Blunderchips Update1建议

server.js

代码语言：javascript
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let express = require('express');
let path = require('path');
let fs = require('fs');
let MongoClient = require('mongodb').MongoClient;
let bodyParser = require('body-parser');
let app = express();

const dbServer = process.env.ME_CONFIG_MONGODB_SERVER;
const dbPassword = process.env.ME_CONFIG_MONGODB_ADMINPASSWORD;
const dbUserName = process.env.ME_CONFIG_MONGODB_ADMINUSERNAME;
const dbPort = process.env.ME_CONFIG_MONGODB_PORT;

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

app.get('/', function (req, res) {
    res.sendFile(path.join(__dirname, "index.html"));
  });

app.get('/profile-picture', function (req, res) {
  let img = fs.readFileSync(path.join(__dirname, "images/profile-1.jpg"));
  res.writeHead(200, {'Content-Type': 'image/jpg' });
  res.end(img, 'binary');
});

// use when starting application locally
//let mongoUrlLocal = "mongodb://admin:password@localhost:27017";

// use when starting application as docker container
let mongoUrlDocker = `mongodb://${dbUserName}:${dbPassword}@${dbServer}:${dbPort}`;//"mongodb://admin:password@mongodb:27017";//"mongodb://admin:password@mongodb";

// pass these options to mongo client connect request to avoid DeprecationWarning for current Server Discovery and Monitoring engine
let mongoClientOptions = { useNewUrlParser: true, useUnifiedTopology: true };

// "user-account" in demo with docker. "my-db" in demo with docker-compose
let databaseName = "my-db";

app.post('/update-profile', function (req, res) {
  let userObj = req.body;

  MongoClient.connect(mongoUrlDocker, mongoClientOptions, function (err, client) {
    if (err) throw err;

    let db = client.db(databaseName);
    userObj['userid'] = 1;

    let myquery = { userid: 1 };
    let newvalues = { $set: userObj };

    db.collection("users").updateOne(myquery, newvalues, {upsert: true}, function(err, res) {
      if (err) throw err;
      client.close();
    });

  });
  // Send response
  res.send(userObj);
});

app.get('/get-profile', function (req, res) {
  let response = {};
  // Connect to the db
  MongoClient.connect(mongoUrlDocker, mongoClientOptions, function (err, client) {
    if (err) throw err;

    let db = client.db(databaseName);

    let myquery = { userid: 1 };

    db.collection("users").findOne(myquery, function (err, result) {
      if (err) throw err;
      response = result;
      client.close();

      // Send response
      res.send(response ? response : {});
    });
  });
});

app.listen(3000, function () {
  console.log("app listening on port 3000!");
});

docker-compose.yaml

代码语言：javascript
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version: '3'
services:
  mongodb:
    image: mongo
    ports:
      - 27017:27017
    environment:
      - MONGO_INITDB_ROOT_USERNAME=admin
      - MONGO_INITDB_ROOT_PASSWORD=password
  mongo-express:
    image: mongo-express
    ports:
      - 8080:8081
    environment:
      - ME_CONFIG_MONGODB_ADMINUSERNAME=admin
      - ME_CONFIG_MONGODB_ADMINPASSWORD=password
      - ME_CONFIG_MONGODB_SERVER=mongodb
    links: 
        - mongodb:mongodb

我还是看不见芒果快车在跑

代码语言：javascript
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docker ps
CONTAINER ID   IMAGE     COMMAND                  CREATED              STATUS              PORTS                                           NAMES
23428dc0c3a1   mongo     "docker-entrypoint.s…"   About a minute ago   Up About a minute   0.0.0.0:27017->27017/tcp, :::27017->27017/tcp   nodeapplications_mongodb_1

日志

代码语言：javascript
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mongo-express_1  | Welcome to mongo-express
mongo-express_1  | ------------------------
mongo-express_1  | 
mongo-express_1  | 
mongo-express_1  | (node:7) [MONGODB DRIVER] Warning: Current Server Discovery and Monitoring engine is deprecated, and will be removed in a future version. To use the new Server Discover and Monitoring engine, pass option { useUnifiedTopology: true } to the MongoClient constructor.
mongo-express_1  | Could not connect to database using connectionString: mongodb://admin:password@mongodb:27017/"
mongo-express_1  | (node:7) UnhandledPromiseRejectionWarning: MongoNetworkError: failed to connect to server [mongodb:27017] on first connect [Error: connect ECONNREFUSED 172.23.0.2:27017
mongo-express_1  |     at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1144:16) {
mongo-express_1  |   name: 'MongoNetworkError'
mongo-express_1  | }]
mongo-express_1  |     at Pool.<anonymous> (/node_modules/mongodb/lib/core/topologies/server.js:438:11)
mongo-express_1  |     at Pool.emit (events.js:314:20)
mongo-express_1  |     at /node_modules/mongodb/lib/core/connection/pool.js:562:14
mongo-express_1  |     at /node_modules/mongodb/lib/core/connection/pool.js:995:11
mongo-express_1  |     at /node_modules/mongodb/lib/core/connection/connect.js:32:7
mongo-express_1  |     at callback (/node_modules/mongodb/lib/core/connection/connect.js:280:5)
mongo-express_1  |     at Socket.<anonymous> (/node_modules/mongodb/lib/core/connection/connect.js:310:7)
mongo-express_1  |     at Object.onceWrapper (events.js:421:26)
mongo-express_1  |     at Socket.emit (events.js:314:20)
mongo-express_1  |     at emitErrorNT (internal/streams/destroy.js:92:8)
mongo-express_1  |     at emitErrorAndCloseNT (internal/streams/destroy.js:60:3)
mongo-express_1  |     at processTicksAndRejections (internal/process/task_queues.js:84:21)
mongo-express_1  | (node:7) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
mongo-express_1  | (node:7) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

更新2

代码语言：javascript
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let express = require('express');
let path = require('path');
let fs = require('fs');
let MongoClient = require('mongodb').MongoClient;
let bodyParser = require('body-parser');
let app = express();

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

app.get('/', function (req, res) {
    res.sendFile(path.join(__dirname, "index.html"));
  });

app.get('/profile-picture', function (req, res) {
  let img = fs.readFileSync(path.join(__dirname, "images/profile-1.jpg"));
  res.writeHead(200, {'Content-Type': 'image/jpg' });
  res.end(img, 'binary');
});

// use when starting application locally
//let mongoUrlLocal = "mongodb://admin:password@localhost:27017";

// use when starting application as docker container
let mongoUrlDocker = "mongodb://admin:password@mongodb:27017";

// pass these options to mongo client connect request to avoid DeprecationWarning for current Server Discovery and Monitoring engine
let mongoClientOptions = { useNewUrlParser: true, useUnifiedTopology: true };

// "user-account" in demo with docker. "my-db" in demo with docker-compose
let databaseName = "my-db";

app.post('/update-profile', function (req, res) {
  let userObj = req.body;

  MongoClient.connect(mongoUrlDocker, mongoClientOptions, function (err, client) {
    if (err) throw err;

    let db = client.db(databaseName);
    userObj['userid'] = 1;

    let myquery = { userid: 1 };
    let newvalues = { $set: userObj };

    db.collection("users").updateOne(myquery, newvalues, {upsert: true}, function(err, res) {
      if (err) throw err;
      client.close();
    });

  });
  // Send response
  res.send(userObj);
});

app.get('/get-profile', function (req, res) {
  let response = {};
  // Connect to the db
  MongoClient.connect(mongoUrlDocker, mongoClientOptions, function (err, client) {
    if (err) throw err;

    let db = client.db(databaseName);

    let myquery = { userid: 1 };

    db.collection("users").findOne(myquery, function (err, result) {
      if (err) throw err;
      response = result;
      client.close();

      // Send response
      res.send(response ? response : {});
    });
  });
});

app.listen(3000, function () {
  console.log("app listening on port 3000!");
});

更新3

docker-compose

代码语言：javascript
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version: '3'
services:
  mongodb:
    image: mongo
    ports:
      - 27017:27017
    environment:
      - MONGO_INITDB_ROOT_USERNAME=admin
      - MONGO_INITDB_ROOT_PASSWORD=password
  mongo-express:
    image: mongo-express
    ports:
      - 8080:8081
    environment:
      - ME_CONFIG_MONGODB_ADMINUSERNAME=admin
      - ME_CONFIG_MONGODB_ADMINPASSWORD=password
      - ME_CONFIG_MONGODB_SERVER=mongodb
    links: 
        - mongodb:mongodb
    restart: on-failure

全日志

代码语言：javascript
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 mongo-express_1  | Welcome to mongo-express
mongo-express_1  | ------------------------
mongo-express_1  | 
mongo-express_1  | 
mongodb_1        | {"t":{"$date":"2021-07-04T10:41:58.806+00:00"},"s":"I",  "c":"STORAGE",  "id":22318,   "ctx":"SignalHandler","msg":"Shutting down session sweeper thread"}
mongodb_1        | {"t":{"$date":"2021-07-04T10:41:58.806+00:00"},"s":"I",  "c":"STORAGE",  "id":22319,   "ctx":"SignalHandler","msg":"Finished shutting down session sweeper thread"}
mongodb_1        | {"t":{"$date":"2021-07-04T10:41:58.807+00:00"},"s":"I",  "c":"STORAGE",  "id":22322,   "ctx":"SignalHandler","msg":"Shutting down checkpoint thread"}
mongodb_1        | {"t":{"$date":"2021-07-04T10:41:58.807+00:00"},"s":"I",  "c":"STORAGE",  "id":22323,   "ctx":"SignalHandler","msg":"Finished shutting down checkpoint thread"}
mongodb_1        | {"t":{"$date":"2021-07-04T10:41:58.807+00:00"},"s":"I",  "c":"STORAGE",  "id":4795902, "ctx":"SignalHandler","msg":"Closing WiredTiger","attr":{"closeConfig":"leak_memory=true,"}}
mongodb_1        | {"t":{"$date":"2021-07-04T10:41:58.810+00:00"},"s":"I",  "c":"STORAGE",  "id":22430,   "ctx":"SignalHandler","msg":"WiredTiger message","attr":{"message":"[1625395318:810568][28:0x7f50eec9b700], close_ckpt: [WT_VERB_CHECKPOINT_PROGRESS] saving checkpoint snapshot min: 48, snapshot max: 48 snapshot count: 0, oldest timestamp: (0, 0) , meta checkpoint timestamp: (0, 0)"}}
mongo-express_1  | (node:7) [MONGODB DRIVER] Warning: Current Server Discovery and Monitoring engine is deprecated, and will be removed in a future version. To use the new Server Discover and Monitoring engine, pass option { useUnifiedTopology: true } to the MongoClient constructor.
mongo-express_1  | Could not connect to database using connectionString: mongodb://admin:password@mongodb:27017/"
mongo-express_1  | (node:7) UnhandledPromiseRejectionWarning: MongoNetworkError: failed to connect to server [mongodb:27017] on first connect [Error: connect ECONNREFUSED 172.27.0.2:27017
mongo-express_1  |     at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1144:16) {
mongo-express_1  |   name: 'MongoNetworkError'
mongo-express_1  | }]
mongo-express_1  |     at Pool.<anonymous> (/node_modules/mongodb/lib/core/topologies/server.js:438:11)
mongo-express_1  |     at Pool.emit (events.js:314:20)
mongo-express_1  |     at /node_modules/mongodb/lib/core/connection/pool.js:562:14
mongo-express_1  |     at /node_modules/mongodb/lib/core/connection/pool.js:995:11
mongo-express_1  |     at /node_modules/mongodb/lib/core/connection/connect.js:32:7
mongo-express_1  |     at callback (/node_modules/mongodb/lib/core/connection/connect.js:280:5)
mongo-express_1  |     at Socket.<anonymous> (/node_modules/mongodb/lib/core/connection/connect.js:310:7)
mongo-express_1  |     at Object.onceWrapper (events.js:421:26)
mongo-express_1  |     at Socket.emit (events.js:314:20)
mongo-express_1  |     at emitErrorNT (internal/streams/destroy.js:92:8)
mongo-express_1  |     at emitErrorAndCloseNT (internal/streams/destroy.js:60:3)
mongo-express_1  |     at processTicksAndRejections (internal/process/task_queues.js:84:21)
mongo-express_1  | (node:7) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
mongo-express_1  | (node:7) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
mongodb_1        | {"t":{"$date":"2021-07-04T10:42:00.871+00:00"},"s":"I",  "c":"STORAGE",  "id":4795901, "ctx":"SignalHandler","msg":"WiredTiger closed","attr":{"durationMillis":2064}}
mongodb_1        | {"t":{"$date":"2021-07-04T10:42:00.871+00:00"},"s":"I",  "c":"STORAGE",  "id":22279,   "ctx":"SignalHandler","msg":"shutdown: removing fs lock..."}
mongodb_1        | {"t":{"$date":"2021-07-04T10:42:00.872+00:00"},"s":"I",  "c":"-",        "id":4784931, "ctx":"SignalHandler","msg":"Dropping the scope cache for shutdown"}
mongodb_1        | {"t":{"$date":"2021-07-04T10:42:00.873+00:00"},"s":"I",  "c":"FTDC",     "id":4784926, "ctx":"SignalHandler","msg":"Shutting down full-time data capture"}
mongodb_1        | {"t":{"$date":"2021-07-04T10:42:00.873+00:00"},"s":"I",  "c":"FTDC",     "id":20626,   "ctx":"SignalHandler","msg":"Shutting down full-time diagnostic data capture"}
mongodb_1        | {"t":{"$date":"2021-07-04T10:42:00.878+00:00"},"s":"I",  "c":"CONTROL",  "id":20565,   "ctx":"SignalHandler","msg":"Now exiting"}
mongodb_1        | {"t":{"$date":"2021-07-04T10:42:00.879+00:00"},"s":"I",  "c":"CONTROL",  "id":23138,   "ctx":"SignalHandler","msg":"Shutting down","attr":{"exitCode":0}}
nodeapplications_mongo-express_1 exited with code 0
mongodb_1        | 
mongodb_1        | MongoDB init process complete; ready for start up.
node.js
mongodb
docker
docker-compose
mongo-express
EN

Stack Overflow用户

发布于 2021-07-04 06:59:47

问题似乎在于您已经配置了网络。在快递服务器中，它试图连接到在自己的本地主机上运行的Mongo实例(是容器的127.0.0.1，而不是本地机器)。由于您的快速服务上没有运行MongoDB实例，因此将引发ECONNREFUSED (错误连接拒绝)。我们需要做的是将DB容器放在一个可从速递服务访问的网络上，并连接到它。您可以在这里的文件上找到更多关于与坞-撰写器联网的信息。

在这种情况下，我认为最容易做的事情，尤其是对地方发展而言，是将两个服务“链接”在一起，如下所示：

代码语言：javascript
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version: '3'
services:
  mongodb:
    image: mongo
    ports:
      - 27017:27017
    environment:
      - MONGO_INITDB_ROOT_USERNAME=admin
      - MONGO_INITDB_ROOT_PASSWORD=password

  mongo-express:
    image: mongo-express
    ports:
      - 8080:8081
    environment:
      - ME_CONFIG_MONGODB_ADMINUSERNAME=admin
      - ME_CONFIG_MONGODB_ADMINPASSWORD=password
      - ME_CONFIG_MONGODB_SERVER=mongodb
    links: 
        - mongodb:mongodb

然后将mongoUrlLocal更改为mongodb://admin:password@mongodb:27017。有关更多信息，请查看这里的文件。实际上，这在mongo-express服务中创建了一个伪DNS记录，该记录指向mongodb服务，因此每当您试图连接到"mongodb“地址时，您就连接到正在运行数据库的容器。请注意，这只适用于链接服务，因此无法从本地计算机连接到"mongodb“。

此外，我建议您做的是，我为您的数据库连接设置了环境变量。目前，我看到您有未使用的ME_CONFIG_MONGODB_SERVER，mongoUrlLocal和mongoUrlDocker。我认为最好从process.env中提取连接字符串信息，然后像前面一样，从您的docker文件中传递环境变量。

例如，类似这样的东西：

代码语言：javascript
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const dbServer = process.env.ME_CONFIG_MONGODB_SERVER;
const dbPassword = process.env.ME_CONFIG_MONGODB_ADMINPASSWORD;
const dbUserName = process.env.ME_CONFIG_MONGODB_ADMINUSERNAME;
const dbPort = process.env.ME_CONFIG_MONGODB_PORT;

let mongoUrl = `mongodb://${dbUserName}:${dbPassword}@${dbServer}:${dbPort}`;
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页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/68242250

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