Mongodb demo

基于mongodb3.0.1， 下载mongo-java-driver-3.0.1.jar

package test.mongodb;

import java.util.HashMap;
import java.util.Map;

import org.bson.Document;
import org.bson.conversions.Bson;

import com.mongodb.MongoClient;
import com.mongodb.client.FindIterable;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import com.mongodb.client.model.Filters;

public class MongodbDemo {

	public static void main(String[] arsg) {

		MongoClient client = new MongoClient("192.168.190.128",27017);
		//MongoClient client = new MongoClient();

		MongoDatabase database  = client.getDatabase("testMongo");//Database name

		//MongoCollection<> collection = database.getCollection("");

        add(database);
		upate(database);
		delete(database);
		search(database);
		client.close();
	}

	public static void add(MongoDatabase database) {
		MongoCollection<Document> collection = database.getCollection("foo");//集合 name

		Map<String, String> map = new HashMap<String, String>();
		map.put("time", "2015-05-21 22:59");

		Document document = new Document("AddBy", "JAVA" ).append("append", map);

		collection.insertOne(document);

		database.createCollection("JavaCollection");

	}

	public static void delete(MongoDatabase database) {
		MongoCollection<Document> collection =  database.getCollection("foo");
		collection.deleteOne(Filters.lte("age", 22));

	     database.getCollection("JavaCollection").drop();
	}

	public static void upate(MongoDatabase database){
		MongoCollection<Document> collection = database.getCollection("foo");

		//collection.updateOne(Filters.gt("age",18), new Document("$set", new Document("sex","MANNN")));
		collection.updateMany(Filters.gt("age",18), new Document("$set", new Document("sex","MANNN")));
	}

	public static void search(MongoDatabase database){

		MongoCollection<Document> collection = database.getCollection("foo");

		Bson bsonfilter = Filters.gte("age",22);
		FindIterable<Document> find = collection.find(bsonfilter);

		System.out.println("collection.count():: "+ collection.count());

		for(Document documentT : find) {
			System.out.println(documentT.get("sex"));
		}

		Document document = find.first();
		if(null !=document && document.containsKey("age")) {
	      System.out.println(document.getDouble("age"));
		}
	}
}