To connect to mongodb server - Java Big Data

Java examples for Big Data:MongoDB

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Description

To connect to mongodb server

Demo Code


import java.util.ArrayList;

import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.MongoClient;

public class MongoJavaTest {

    public static void main(String[] args) {

        try {//from   ww w .  j a  va 2s.c  om

            // To connect to mongodb server
            MongoClient mongoClient = new MongoClient("localhost", 27017);

            // Now connect to your databases
            DB db = mongoClient.getDB("myDB");
            System.out.println("Connect to database successfully");
            // boolean auth = db.authenticate(myUserName, myPassword);
            // System.out.println("Authentication: "+auth);
            DBCollection coll = db.createCollection("mycol", null);
            System.out.println("Collection created successfully");
            BasicDBObject doc = new BasicDBObject("title", "MongoDB")
                    .append("description", "database").append("likes", 100)
                    .append("url", "random").append("by", "demo");

            coll.insert(doc);
            System.out.println("Document inserted successfully");

        } catch (Exception e) {
            System.err.println(e.getClass().getName() + ": "
                    + e.getMessage());
        }
    }

    public static BasicDBObject createDocObject(ArrayList<String> list) {

        int n = list.size();
        BasicDBObject doc = new BasicDBObject("Word", list.get(0));
        for (int i = 1; i < n; i++) {
            doc.append("meaning" + i, list.get(i));
        }
        return doc;

    }

}

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