MongoDB Hello World

MongoDB_Tutorial1.java

package com.mkyong.core;
 
import java.net.UnknownHostException;
import java.util.Date;
import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.MongoClient;
import com.mongodb.MongoException;
 
/**
 * Java + MongoDB Hello world Example
 * 
 */
public class App {
  public static void main(String[] args) {
 
    try {
 
	/**** Connect to MongoDB ****/
	// Since 2.10.0, uses MongoClient
	MongoClient mongo = new MongoClient("localhost", 27017);
 
	/**** Get database ****/
	// if database doesn't exists, MongoDB will create it for you
	DB db = mongo.getDB("testdb");
 
	/**** Get collection / table from 'testdb' ****/
	// if collection doesn't exists, MongoDB will create it for you
	DBCollection table = db.getCollection("user");
 
	/**** Insert ****/
	// create a document to store key and value
	BasicDBObject document = new BasicDBObject();
	document.put("name", "mkyong");
	document.put("age", 30);
	document.put("createdDate", new Date());
	table.insert(document);
 
	/**** Find and display ****/
	BasicDBObject searchQuery = new BasicDBObject();
	searchQuery.put("name", "mkyong");
 
	DBCursor cursor = table.find(searchQuery);
 
	while (cursor.hasNext()) {
		System.out.println(cursor.next());
	}
	/**** Done ****/
	System.out.println("Done");
 
    } catch (UnknownHostException e) {
	e.printStackTrace();
    } catch (MongoException e) {
	e.printStackTrace();
    }
 
  }
}