mongoDB的NodeJS连接错误

Question

I've got a problem to connect my socketIO application (made with nodeJS) with my mongoDB. I try to connect on an remote server, but its throws me error

Here's my code (there's no user/password set in the mongoDB) :

   var url = "mongodb://192.168.1.5:27017/DB"

   MongoClient.connect(url, function(err, db) {
           console.log("test")
           if (!err) {
                   console.log("test");
           }
           else {
                   console.dir(err)
           throw err
           }
   //  db.close();
   });

And here's when I launch the server and I tried to launch the app in a navigator : Server listening at port 80:

{ [MongoError: connect ECONNREFUSED] name: 'MongoError', message: 'connect ECONNREFUSED' }
/root/fys-realtime/examples/chat/node_modules/mongodb/lib/server.js:228
        process.nextTick(function() { throw err; })
                                            ^
Error
    at Error.MongoError (/root/fys-realtime/examples/chat/node_modules/mongodb/node_modules/mongodb-core/lib/error.js:13:17)
    at Server.destroy (/root/fys-realtime/examples/chat/node_modules/mongodb/node_modules/mongodb-core/lib/topologies/server.js:629:47)
    at Server.close (/root/fys-realtime/examples/chat/node_modules/mongodb/lib/server.js:344:17)
    at Db.close (/root/fys-realtime/examples/chat/node_modules/mongodb/lib/db.js:267:19)
    at /root/fys-realtime/examples/chat/node_modules/mongodb/lib/db.js:196:12
    at null.<anonymous> (/root/fys-realtime/examples/chat/node_modules/mongodb/lib/server.js:226:9)
    at g (events.js:180:16)
    at emit (events.js:98:17)
    at null.<anonymous> (/root/fys-realtime/examples/chat/node_modules/mongodb/node_modules/mongodb-core/lib/topologies/server.js:238:68)
    at g (events.js:180:16)

Answer 1

This error is returned for several errors like :

• server is not running
• you need to authenticate user
• this database does not exists
• the mongodb port is not the default port

Check this. Normaly your problem is just one of these causes

Answer 2

For this to work you have to make the changes in /etc/mongod.conf

comment bind_ip=127.0.0.1 As if this line in not commented it Listen to local interface only.

Answer 3

解决方案之一是将127.0.0.1更改为公用ip或路由器在/ etc中的mongodb配置文件中为您提供的任何内容

Answer 4

There could be few reasons for ECONNREFUSED error. Checkpoints

• Check if your port is not serving any other process.
• Check if your mongod is running.
• Check if you localHost is configured correctly with your id or not.

for more you can see this