在mongodb JavaScript控制台中从Array批量插入

Question

I'm trying to make a bulk insert from the MongoDB console of an array into a collection.

I'd like to do something similar to this.

obj1 = {_id:ObjectId(),blabla:1};

obj2 = {_id:ObjectId(),blabla:2};

objs = [obj1, obj2];

db.test.insert(objs);

db.test.find()

> {"_id": ObjectId("xxxx"), "blabla": 1} > {"_id": ObjectId("xxxx"), "blabla": 2}

But, instead of inserting two objects on the collection, it stores one list with the two objects.

db.test.find()

> {"_id": ObjectId("xxx"), "0":{"_id": ObjectId("xxxx"), "blabla": 1}, "1":{"_id": ObjectId("xxxx"), "blabla": 2} }

That functionality appears to present on other drivers (like pymongo ), but I can't find a way of doing that from the mongodb console, in JavaScript code.

Answer 1

The feature to insert multiple documents into a collection has been added to Mongo command shell version 2.1+. Now You can insert and array of documents into your collection.

Example:

db.users.insert([{name:'Jon', email:'Jon_Doe@mail.com'},{name:'Jane', email:'Jane_Doe@mail.com'}])

For more information look at these jira closed feature request:

https://jira.mongodb.org/browse/SERVER-3819

https://jira.mongodb.org/browse/SERVER-2395

Answer 2

There is an existing feature request for this. http://jira.mongodb.org/browse/SERVER-2429

Answer 3

Bulk is available in 2.6.6.

var bulk=db.posts.initializeUnorderedBulkOp() ;
bulk.insert(obj1) ; bulk.insert(obj2);...

bulk.execute() ;

Answer 4

objs.forEach(function(obj) { db.test.insert(obj) });

Answer 5

You cannot do a bulk insert through the interactive command shell. But there is a commandline tool that ships with Mongo that allows you to import multiple records as either JSON (your best option), CSV or Binary.

> mongoimport -h <host> -d <database> -c <collection> -u <user> -p <password> --file <input file> --jsonArray

The jsonArray flag will allow you to insert multiple records when you use the json array file. Another important note is to make sure you have the file ending with a new line character. Otherwise the last line will not be parsed.

Answer 6

简而言之：mongo控制台级别没有这样的批量插入API。