mongo.java

import java.net.UnknownHostException;
import java.util.Set;

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

public class Test {

	public static void main(String[] args) throws UnknownHostException {
		System.out.println("mongoDB test");
		MongoClient mongoClient = new MongoClient(
				"192.168.56.101", 27017);
		DB db = mongoClient.getDB("popidb");	
		
		//get list collection
		Set<String> colls = db.getCollectionNames();
		for(String s: colls) {
			System.out.println(s);
		}
		//get collection
		DBCollection coll = db.getCollection("memo");
		
		//inserting a document		
		BasicDBObject doc = new BasicDBObject("name", "mongoDB");
		doc.append("no", 1);
		BasicDBObject body = new BasicDBObject("title", "Hello");
		body.append("main", "Weather is very nice!");
		doc.append("text", body);
		coll.insert(doc);
		
		System.out.println("find one\n\n");
		//findone
		DBObject one = coll.findOne();
		System.out.println(one);
		
		System.out.println("find all\n\n");
		//findall
		DBCursor cursor = coll.find();
		while(cursor.hasNext()) {
			System.out.println(cursor.next());
		}
		//cursor.close();
		
		System.out.println("find some\n\n");
		//find some
		BasicDBObject temp = new BasicDBObject("$regex","M.*");
		cursor = coll.find(new BasicDBObject("name", temp));		
		while(cursor.hasNext()) {
			System.out.println(cursor.next());
		}		
	}

}