MongoDB初探(一)----windows下搭建与测试
1.下载安装和配置
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windows:
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代表已经启动mongodb。
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2.基本代码：
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不多说，上java代码：
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package com.mongodb;import java.net.UnknownHostException;public class MongoDb {/** * @param args */public static void main(String[] args) {Mongo m;try {m = new Mongo("localhost", 27017);DB db = m.getDB("db_test");DBCollection coll = db.getCollection("collection1");findAll(coll);m.close();} catch (UnknownHostException e) {e.printStackTrace();} catch (MongoException e) {e.printStackTrace();}}private static void gt(DBCollection coll) {BasicDBObject query = new BasicDBObject();query.put("i", new BasicDBObject("$gt", 5));DBCursor cur = coll.find(query);while (cur.hasNext()) {System.out.println(cur.next());}}private static void ne(DBCollection coll) {BasicDBObject query = new BasicDBObject();query.put("i", new BasicDBObject("$ne", 3));DBCursor cur = coll.find(query);while (cur.hasNext()) {System.out.println(cur.next());}}private static void getOne(DBCollection coll) {BasicDBObject query = new BasicDBObject();query.put("i", 4);DBCursor cur = coll.find(query);while (cur.hasNext()) {System.out.println(cur.next());}}private static DBObject findFirstOne(DBCollection coll) {return coll.findOne();}private static long getCount(DBCollection coll) {return coll.getCount();}private static void findAll(DBCollection coll) {DBCursor cur = coll.find();while (cur.hasNext()) {System.out.println(cur.next());}}private static void insert(DBCollection coll) {BasicDBObject doc = new BasicDBObject();doc.put("name", "MongoDB");doc.put("type", "database");doc.put("count", 1);BasicDBObject info = new BasicDBObject();info.put("x", 203);info.put("y", 102);doc.put("info", info);coll.insert(doc);for (int i = 0; i < 10; i++) {coll.insert(new BasicDBObject().append("i", i));}}}?
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第一集到此结束。