MongoDB 6.0.1快速启动代码执行出现连接超时错误求助

我用mongosh运行以下代码时遇到超时错误：

const MongoClient = require('mongodb').MongoClient;
const assert = require('assert');

// Connection URL
const url = 'mongodb://127.0.0.1:27017';

// Database Name
const dbName = 'fruitsDB';
const client = new MongoClient(url, {useNewUrlParser: true});

// Use connect method to connect to the server
client.connect(function(err) {
  assert.equal(null, err);
  console.log("Connected successfully to server");

  const db = client.db(dbName);

  insertDocuments(db, function() {
    client.close();
  });
});

我已经把连接地址从mongodb://localhost:27017改成了mongodb://127.0.0.1:27017，但问题依然存在。

命令行报错信息如下：

const timeoutError = new error_1.MongoServerSelectionError(`Server selection timed out after ${serverSelectionTimeoutMS} ms`, this.description);
                                 ^

MongoServerSelectionError: connect ECONNREFUSED ::1:27017
    at Timeout._onTimeout (C:\Users\Samse\all\Desktop\WebDevLearning\BackEnd\FruitsProj\node_modules\mongodb\lib\sdam\topology.js:278:38)
    at listOnTimeout (node:internal/timers:569:17)
    at process.processTimers (node:internal/timers:512:7) {
  reason: TopologyDescription {
    type: 'Unknown',
    servers: Map(1) {
      'localhost:27017' => ServerDescription {
        address: 'localhost:27017',
        type: 'Unknown',
        hosts: [],
        passives: [],
        arbiters: [],
        tags: {},
        minWireVersion: 0,
        maxWireVersion: 0,
        roundTripTime: -1,
        lastUpdateTime: 3163819,
        lastWriteDate: 0,
        error: MongoNetworkError: connect ECONNREFUSED ::1:27017
            at connectionFailureError (C:\Users\Samse\all\Desktop\WebDevLearning\BackEnd\FruitsProj\node_modules\mongodb\lib\cmap\connect.js:370:20)
            at Socket.<anonymous> (C:\Users\Samse\all\Desktop\WebDevLearning\BackEnd\FruitsProj\node_modules\mongodb\lib\cmap\connect.js:293:22)
            at Object.onceWrapper (node:events:628:26)
            at Socket.emit (node:events:513:28)
            at emitErrorNT (node:internal/streams/destroy:151:8)
            at emitErrorCloseNT (node:internal/streams/destroy:116:3)
            at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {
          cause: Error: connect ECONNREFUSED ::1:27017
              at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1494:16) {
            errno: -4078,
            code: 'ECONNREFUSED',
            syscall: 'connect',
            address: '::1',
            port: 27017
          },
          [Symbol(errorLabels)]: Set(1) { 'ResetPool' }
        },
        topologyVersion: null,
        setName: null,
        setVersion: null,
        electionId: null,
        logicalSessionTimeoutMinutes: null,
        primary: null,
        me: null,
        '$clusterTime': null
      }
    },
    stale: false,
    compatible: true,
    heartbeatFrequencyMS: 10000,
    localThresholdMS: 15,
    setName: null,
    maxElectionId: null,
    maxSetVersion: null,
    commonWireVersion: 0,
    logicalSessionTimeoutMinutes: null
  },
  code: undefined,
  [Symbol(errorLabels)]: Set(0) {}
}

解决办法 #

1. 确认MongoDB服务是否在运行 #

报错核心是ECONNREFUSED，说明27017端口没有服务监听：

• Windows：打开任务管理器→服务，查看MongoDB状态；或者命令行执行net start MongoDB启动服务。
• macOS/Linux：执行systemctl status mongod查状态，未运行则用systemctl start mongod启动。

2. 强制MongoDB绑定IPv4地址 #

MongoDB可能默认只绑定了IPv6的::1，修改配置文件：

• 找到mongod.conf（Windows一般在C:\Program Files\MongoDB\Server\对应版本\bin，Linux/macOS在/etc/mongod.conf）
• 找到net节点，添加或修改bindIp为127.0.0.1：

  net:
    port: 27017
    bindIp: 127.0.0.1
  

• 重启MongoDB服务生效。

3. 连接时强制使用IPv4 #

在MongoClient配置里加family: 4，强制走IPv4连接：

const client = new MongoClient(url, {
  useNewUrlParser: true,
  family: 4 // 指定使用IPv4
});

4. 检查防火墙设置 #

确保本地防火墙没有拦截27017端口的连接，可暂时关闭防火墙测试是否恢复正常。

内容的提问来源于stack exchange，提问作者user20018983