How do i store data into a MongoDb Database using Java?

Question

I am fairly new to MongoDB and i've got an issue on how to store data from an Array into a mongodb database? For some reason when i implement the following code i get a lot of errors.

    private void storeData(String[] trainSeats, String[] customerName, String[] traincustomerSeats){

        MongoClient dbb = new MongoClient("localhost", 27017);
        DB dbs = dbb.getDB("Train Customers and Seats");
        DBCollection coll1 = dbs.getCollection("CW1");
        DBCollection coll2 = dbs.getCollection("CW2");
        DBCollection coll3 = dbs.getCollection("CW3");

        BasicDBObject oneDoc = new BasicDBObject();
        for (int k = 1; k < trainSeats.length; k++){
            oneDoc.append(String.valueOf(k), trainSeats[k]);
        }
        coll1.insert(oneDoc);

        BasicDBObject twoDoc = new BasicDBObject();
        for(int k = 1; k < customerName.length; k++){
            twoDoc.append(String.valueOf(k), customerName[k]);
        }
        coll2.insert(twoDoc);

        BasicDBObject threeDoc = new BasicDBObject();
        for(int k = 1; k < traincustomerSeats.length; k++){
            threeDoc.append(String.valueOf(k), traincustomerSeats[k]);
        }
        coll3.insert(threeDoc);

        optionEnter(trainSeats,customerName,traincustomerSeats);
    }

Here are the errors i get when i run the above code:

click to view the errors

If you have the option of using Spring Data, it makes life a lot easier. — chrylis -cautiouslyoptimistic-
– chrylis -cautiouslyoptimistic-, Commented Mar 18, 2020 at 2:54
MongoDB Java Tutorials have exaples to write data to the database. — prasad_
– prasad_, Commented Mar 18, 2020 at 2:55
@JDHernandez i added an image link on the post - those are the errors — Sabiq Sabry
– Sabiq Sabry, Commented Mar 18, 2020 at 2:58

umair · Accepted Answer · 2020-03-18 03:22:23Z

1

I saw your error log. You are getting this error because your database name "Train Customers and Seats" have lot of spaces ' ', which is not allowed in the database name.

Rename your database to "Train_Customers_and_Seats" or "TrainCustomersAndSeats"

answered Mar 18, 2020 at 3:22

umair

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