从node.js连接到mongodb时发生ECONNREFUSED错误 [英] ECONNREFUSED error when connecting to mongodb from node.js

问题描述

我知道我正在做一些非常愚蠢和愚蠢的事情，但是我希望有人可以帮助我建立从Mac上的node.js到mongodb的基本数据库连接.

I know I'm doing some very stupid and noobish, but I'm hoping someone can help me set up a basic database connection to mongodb from node.js on a mac.

我已经使用自制软件安装了mongodb，效果似乎很好.我已经以本地登录用户身份启动了服务器(mongod)，并打开了第二个终端，并确认可以使用mongo连接到该服务器.当我运行mongo时，出现消息正在连接:localhost:27017/test"，然后显示命令提示符.在mongo shell中运行一些命令，似乎一切都在那儿工作.保持两个终端都打开并运行.

I've installed mongodb using homebrew, seems to have worked quite well. I have started the server (mongod) as the locally logged in user, and opened a second terminal and confirmed that I can connect to it by using mongo. When I run mongo I get the message "connecting to: localhost:27017/test" followed by a command prompt. Ran a few commands in the mongo shell everything seems to be working there. Left both terminals open and running.

我也已确认可以访问localhost:28017的Web界面.

I've also confirmed that I can reach the web interface at localhost:28017.

我安装了node.js并添加了猫鼬包.现在尝试使用超级简单的node.js应用(也以本地登录用户身份运行)进行连接:

I installed node.js and added the mongoose package. Now attempting to connect using a super simple node.js app (also running as locally logged in user):

var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/test');

我收到以下错误

events.js:72
        throw er; // Unhandled 'error' event
              ^
Error: connect ECONNREFUSED
    at errnoException (net.js:901:11)
    at Object.afterConnect [as oncomplete] (net.js:892:19)

将我的头靠在墙上，试图使工作变得如此简单.我想念什么?

Banging my head against the wall trying to get something so simple to work. What am I missing?

这是mongod的日志.如您所见，我尝试了多次，但它们都瞬间失效:

Here are the logs from mongod. As you can see I tried multiple times and they're all failing rather instantaneously:

Thu Dec  5 08:19:43.700 [initandlisten] MongoDB starting : pid=14412 port=27017 dbpath=/usr/local/var/mongodb 64-bit host=mobadmins-MacBook-Pro-3.local
           08:19:43.700 [initandlisten] db version v2.4.8
           08:19:43.700 [initandlisten] git version: nogitversion
           08:19:43.700 [initandlisten] build info: Darwin mobadmins-MacBook-Pro-3.local 12.4.0 Darwin Kernel Version 12.4.0: Wed May  1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64 x86_64 BOOST_LIB_VERSION=1_49
           08:19:43.700 [initandlisten] allocator: tcmalloc
           08:19:43.700 [initandlisten] options: { bind_ip: "127.0.0.1", config: "/usr/local/etc/mongod.conf", dbpath: "/usr/local/var/mongodb", logappend: "true", logpath: "/usr/local/var/log/mongodb/mongo.log", rest: true }
           08:19:43.700 [initandlisten] journal dir=/usr/local/var/mongodb/journal
           08:19:43.700 [initandlisten] recover : no journal files present, no recovery needed
           08:19:43.729 [websvr] admin web console waiting for connections on port 28017
           08:19:43.729 [initandlisten] waiting for connections on port 27017
           08:22:34.561 [initandlisten] connection accepted from 127.0.0.1:52160 #3 (1 connection now open)
           08:22:34.563 [conn3] recv(): message len 1124073472 is too large. Max is 48000000
           08:22:34.563 [conn3] end connection 127.0.0.1:52160 (0 connections now open)
           08:24:41.298 [initandlisten] connection accepted from 127.0.0.1:52166 #4 (1 connection now open)
           08:24:41.304 [conn4] end connection 127.0.0.1:52166 (0 connections now open)
           08:25:06.938 [initandlisten] connection accepted from 127.0.0.1:52168 #5 (1 connection now open)
           08:25:06.943 [conn5] end connection 127.0.0.1:52168 (0 connections now open)
           08:25:18.220 [initandlisten] connection accepted from 127.0.0.1:52172 #6 (1 connection now open)
           08:25:18.225 [conn6] end connection 127.0.0.1:52172 (0 connections now open)
           08:25:38.811 [initandlisten] connection accepted from 127.0.0.1:52175 #7 (1 connection now open)
           08:25:38.816 [conn7] end connection 127.0.0.1:52175 (0 connections now open)

推荐答案

好的，这是我在上面发布的信息中未真正出现的另一种情况.我的node.js应用程序很简单，但是我在node.js代码中加入了几行显然是导致此问题的原因.

OK, this was another case of not being truly forthcoming in the info I posted above. My node.js app was very simple, but I was including another couple lines in my node.js code that apparently caused this issue.

具体来说，我声明了另一个变量，该变量正在调用其他一些代码，这些代码使用不正确的数据库信息进行了单独的数据库调用.这就是为什么在使用Xinzz的代码时，控制台日志错误似乎没有改变的原因.引发错误的实际上不是mongoose.connect命令！

Specifically, I had another variable declared which was calling some other code that made a separate database call using incorrect db info. This is why, when using Xinzz's code, the console log error seemed not to change. It wasn't actually the mongoose.connect command that was throwing the error!

经验教训，将问题本地化并注释掉不相关的代码！抱歉，我知道这是我的愚蠢.

Lesson learned, localize the problem and comment out unrelated code! Sorry guys, I knew this was me being dumb.

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