How to insert a list of data in mongodb using java

Question

I have a list of integers and list names and I inserted this information in mongodb via console using following code

db.collection.insert({"_id":"integers","data":[1,2,3,4,5]})
db.collection.insert({"_id":"names","data":["A","B","C","D"]})

the query db.collection.find().pretty gave the following result

{ "_id" : "ArrayList", "data" : [ 1, 2, 3, 4, 5, 6 ] }
{
    "_id" : "Names",
    "data" : [
        "A",
        "B",
        "C",
        "D"
    ]
}

How to do it in java?

The _ids are not matching. names become "Names", integers became "ArrayList". Please ensure that question is consistent. — Jayan
– Jayan, Commented Jan 18, 2015 at 7:45

Disposer · Accepted Answer · 2015-01-18 06:05:09Z

4

Just put the list as second arg for BasicDBObject

    ArrayList list = new ArrayList();
    list.add(1);
    list.add(2);
    list.add(3);

    BasicDBObject doc = new BasicDBObject("_id", "ArrayList").append("data", list);

    coll.insert(doc);

edited Jan 18, 2015 at 6:05

answered Jan 18, 2015 at 5:53

Disposer

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2 Comments

Satish Patel Over a year ago

BasicDBObject uses the default _id i.e. ObjectId but how to specify own _id. Please see the question

Disposer Over a year ago

Answer updated, In your case, you have to explicitly put the "_id"

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