nodejs连接mongodb的问题 |
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因为初学，跟着书本开始学习使用node-mongodb-native驱动器来操纵mongodb 但是还是因为书本使用的mongodb驱动估计太老旧，采取书本和多数网上的链接方式均报出如下错误 var server = new mongodb.Server('127.0.0.1', 27017, {}); new mongodb.Db('test', server, {}).open(function (err, client) { if (err) throw err; console.log('\033[96m + \033[39m connected to mongodb'); app.users = new mongodb.Collection(client, 'maning'); app.listen(3000, function () { console.log('\033[96m + \033[39m app listening on *:3000'); }); })报错：大概意思是集合名应该为字符串 D:\Program Files\PM25>node index.js + connected to mongodb Error: collection name must be a String at Error (native) at checkCollectionName (D:\Program Files\PM25\node_modules\mongodb\lib\utils .js:70:11) at new Collection (D:\Program Files\PM25\node_modules\mongodb\lib\collection .js:59:3) at D:\Program Files\PM25\index.js:59:19 at D:\Program Files\PM25\node_modules\mongodb\lib\db.js:227:5 at connectHandler (D:\Program Files\PM25\node_modules\mongodb\lib\server.js: 280:7) at g (events.js:260:16) at emitOne (events.js:77:13) at emit (events.js:169:7) at D:\Program Files\PM25\node_modules\mongodb\node_modules\mongodb-core\lib\ topologies\server.js:408:23 D:\Program Files\PM25\node_modules\mongodb\lib\server.js:283 process.nextTick(function() { throw err; }) ^ Error: collection name must be a String at Error (native) at checkCollectionName (D:\Program Files\PM25\node_modules\mongodb\lib\utils .js:70:11) at new Collection (D:\Program Files\PM25\node_modules\mongodb\lib\collection .js:59:3) at D:\Program Files\PM25\index.js:59:19 at D:\Program Files\PM25\node_modules\mongodb\lib\db.js:227:5 at connectHandler (D:\Program Files\PM25\node_modules\mongodb\lib\server.js: 280:7) at g (events.js:260:16) at emitOne (events.js:77:13) at emit (events.js:169:7) at D:\Program Files\PM25\node_modules\mongodb\node_modules\mongodb-core\lib\ topologies\server.js:408:23网上很多博文都有这个错误的发生，但是没有解决的回复，本能是马上去github找原著 还真的发现我又犯傻了，人家在node-mongodb-native2.0的推荐链接方式已经和书上的完全不同 当然我没有看过变更履历，这也是小白的做法，但是长了记性，就是跟着书学编程是不靠谱的。。。凡是找API或者github原著 看过官方的方法后尝试，通过： var MongoClient = require('mongodb').MongoClient , assert = require('assert'); // Connection URL var url = 'mongodb://localhost:27017/myproject'; // Use connect method to connect to the Server MongoClient.connect(url, function(err, db) { assert.equal(null, err); console.log("Connected correctly to server"); db.close(); });我自己的连接测试： var MongoClient = require('mongodb').MongoClient; var DB_CONN_STR = 'mongodb://localhost:27017/test'; MongoClient.connect(DB_CONN_STR, function(err, db) { console.log("连接成功！"); });
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