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 No SQL > Mongo DB > How to insert a Document in Mongo Database

How to insert a Document in Mongo Database 

MongoDB is a scalable, high-performance, open source NoSQL database. It offers Ad hoc queries, Indexing, Replication, Load balancing, File storage (GridFS), Aggregation, MapReduce and Server-side JavaScript execution. This requires the library mongo-2.8.0.jar to be present in the classpath. The following example shows how to insert a document in Mongo database.

File Name  :  
Author  :  Sudhakar KV
Email  :  [email protected]
package com.bethecoder.tutorials.mongodb.tests;


import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import com.mongodb.Mongo;
import com.mongodb.MongoException;

public class InsertToCollectionTest {

   @param args
  public static void main(String[] args) {

    try {
      //Connect to mongoDB with given IP and PORT
      Mongo mongo = new Mongo("localhost"27017);
      //Get the database object
      DB database = mongo.getDB("mytestdb");
      //Gets a collection with a given name.
        //If the collection does not exist, a new collection is created.
      DBCollection collection = database.getCollection("students");
      //Create and insert document to collection
      DBObject document = new BasicDBObject();
      document = new BasicDBObject()
      //Queries for all objects in this collection
      DBCursor dbCursor = collection.find();
      DBObject record = null;
      while (dbCursor.hasNext()) {
        record =;
    catch (UnknownHostException e) {
    catch (MongoException e) {

It gives the following output,
{ "_id" : { "$oid" : "503cb40842e25ce7a11a8005"} , 
	"name" : "Sriram" , "age" : 2}
{ "_id" : { "$oid" : "503cb40842e25ce7a11a8006"} , 
	"name" : "Sudhakar" , "age" : 29 , "mobile" : "123456789"}


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