package mongod;

import java.util.List;

import java.util.ArrayList;

import org.bson.types.*;

import com.mongodb.*;

public class mongo {

//  DBObject  o = new BasicDBObject();

	public static void main(String[] args) {

		// TODO Auto-generated method stub

		MongoClient mo = new MongoClient("127.0.0.1",27017);

		DB db = mo.getDB("wtdd");

		DBCollection col = db.getCollection("wtd");

		/*

		实现增加集合

		db.createCollection("wtddd!!1", new BasicDBObject()); 

		实现插入单个对象，对象中含有数组

		DBObject in = new BasicDBObject();

		in.put("wtd", "wtdd");

		List<String> lis = new ArrayList<String>();

		lis.add("c++");

		lis.add("java");

		in.put("like", lis);

		col.insert(in);

		遍历查看元素

		DBObject a = new BasicDBObject();

		a.put("_id", false);

		a.put("like", false);

		 DBCursor dbs = col.find(null,a);

		for(DBObject obj:dbs) {

			System.out.println(obj);

		}

		查找单个数据

		DBObject aa = new BasicDBObject("name","jim");

		DBCursor dbs = col.find(aa);

		for(DBObject obj:dbs) {

			System.out.println(obj);

		}

		批量加入数据

		DBObject a = new BasicDBObject();

		DBObject b = new BasicDBObject();

		a.put("name",111);

		b.put("name",222);

		List<DBObject> lis = new ArrayList<DBObject>();

		lis.add(a);

		lis.add(b);

		col.insert(lis);

		按照id删除，注意id类型

		col.remove(new BasicDBObject("_id",new ObjectId("5cb586965f37024dd0baf262")));// ID是ObjectID类型 

		按照name删除数据

		DBObject a = new BasicDBObject("name",111);

		col.remove(a).getN();

		update增加列属性

		DBObject a = new BasicDBObject();

		a.put("$set", new BasicDBObject("age",25));

		col.update(new BasicDBObject("name",222), a,false,false)；

		查找e大于80，c小于95 的数据

		DBObject a = new BasicDBObject();

		a.put("e", new BasicDBObject("$gt",80));

		a.put("c", new BasicDBObject("$lt",95));

		DBObject b = new BasicDBObject();

		b.put("e", true);

		b.put("c", true);

		DBCursor dbs = col.find(a,b);

		for(DBObject obj:dbs) {

			System.out.println(obj);

		}

		实现分页跳转

		DBObject a = new BasicDBObject();

		a.put("name", true);

		a.put("_id", 0);

		DBCursor dbs = col.find(null,a).limit(3).skip(3);

		for(DBObject obj:dbs) {

			System.out.println(obj);

		}

		*/

	}

}