我正在try 创建mongo实例,但是我无法从mongodb nodejs驱动程序访问任何帮助程序方法.
我的mongo实例正在docker中运行,端口已向我的本地用户开放.
TypeError: db.createCollection is not a function
at /var/www/html/beacon/index.js:6:8
at args.push (/var/www/html/beacon/node_modules/mongodb/lib/utils.js:431:72)
at /var/www/html/beacon/node_modules/mongodb/lib/mongo_client.js:254:5
at connectCallback (/var/www/html/beacon/node_modules/mongodb/lib/mongo_client.js:933:5)
at /var/www/html/beacon/node_modules/mongodb/lib/mongo_client.js:794:11
at _combinedTickCallback (internal/process/next_tick.js:73:7)
at process._tickCallback (internal/process/next_tick.js:104:9)
从学校抄来的...
var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://localhost:27017/mydb";
MongoClient.connect(url, function(err, db) {
if (err) throw err;
db.createCollection("customers", function(err, res) {
if (err) throw err;
console.log("Collection created!");
db.close();
});
});
运行过程中不会返回任何错误,也不会在db对象上公开任何方法.
有什么 idea 吗?