MongoError:连接ECONNREFUSED 127.0.0.1:27017 [英] MongoError: connect ECONNREFUSED 127.0.0.1:27017

问题描述

我正在使用MongoDB软件包的MongoDB使用NodeJS.当我运行mongod命令时，它工作正常，并显示等待端口27017上的连接".因此，mongod似乎正在工作.但是，当我运行节点index.js命令时，MongoClient无法正常工作并给出错误-

I'm using NodeJS wih MongoDB using mongodb package. When I run mongod command it works fine and gives "waiting for connection on port 27017". So, mongod seems to be working. But MongoClient does not work and gives error when I run node index.js command-

MongoError: failed to connect to server [localhost:27017] on first connect [MongoError: connect ECONNREFUSED 127.0.0.1:27017]

我已经安装了mongo db 3.4，我的代码是-

I have install mongo db 3.4 and my code is-

var MongoClient = require('mongodb').MongoClient;
var dburl       =   "mongodb://localhost:27017/test";
MongoClient.connect(dburl, function(err, db) {
  if (err) {
    throw err;
  }
  console.log('db connected');
  db.close();
});

我已经在root上创建了data/db目录，并赋予了写许可权. mongod.conf文件将数据库路径作为-

I have created data/db directories on root and given write permissions. mongod.conf file takes db path as-

存储: dbPath:/var/lib/mongo

storage: dbPath: /var/lib/mongo

但是似乎它实际上是将db路径作为data/db而不是var/lib/mongo

But it seems that it is actually taking db path as data/db and not var/lib/mongo

它工作较早，但突然停止了.

It working earlier but suddenly stopped.

推荐答案

发生这种情况的原因可能是未启动 MongoDB 服务.请按照以下步骤启动它:

This happened probably because the MongoDB service isn't started. Follow the below steps to start it:

1. 转到控制面板，然后单击管理工具.
2. 双击服务.一个新窗口打开.
3. 搜索 MongoDB.exe .右键单击它，然后选择开始.

1. Go to Control Panel and click on Administrative Tools.
2. Double click on Services. A new window opens up.
3. Search MongoDB.exe. Right click on it and select Start.

服务器将启动.现在再次执行npm start，这一次代码可能会起作用.

The server will start. Now execute npm start again and the code might work this time.

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