利用mongodb做简单的增删查改操作

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1、mongodb实现简单的增删改查 packagemongoDB;   importjava.net.UnknownHostException;   importjava.util.ArrayList;      importjava.util.List;   importcom.mongodb.BasicDBObject;     importcom.mongodb.DB;     importcom.mongodb.DBCollection;     importcom.mongodb.DBCursor;

2、     importcom.mongodb.DBObject;     importcom.mongodb.Mongo;     importcom.mongodb.MongoException;           /**  *java  *mongodb的数据插入、读取、更新、删除  */     publicclasstest{      privatestaticMongom=null;        privatestaticDBdb=null;                  //数据集合名

3、称        privatestaticfinalStringCOLLECTION_NAME="mcpang";              /*      *测试java处理mongodb的增、删、改、查操作      */        publicstaticvoidmain(String[]args){            //获取数据库连接            startMongoDBConn();            //保存数据            createColData(); 

4、           //读取数据            readColData();            //更新数据            updateColData();            //读取数据            readColData();            //删除数据            deleteColData();            //读取数据            readColData();            //删除数据集            db

5、.getCollection(COLLECTION_NAME).drop();           //关闭数据库连接            stopMondoDBConn();                                    }                  /**      *数据插入      *测试数据：      *【name:小李、age:30、address:北京】      *【name:小张、age:25、address:天津】      *@return    

6、    */        privatestaticvoidcreateColData(){            DBCollectiondbCol=db.getCollection(COLLECTION_NAME);            System.out.println("向数据集中插入数据开始：");            ListdbList=newArrayList();            BasicDBObjectdoc1=newBasicDB

7、Object();            doc1.put("name","小李");            doc1.put("age",30);            doc1.put("address","北京");            dbList.add(doc1);                         BasicDBObjectdoc2=newBasicDBObject();           doc2.put("name","小张");           doc2.put("

8、age",25);           doc2.put("address","天津");           dbList.add(doc2);                        dbCol.insert(dbList);           System.out.println("向数据集中插入数据完成！");           System.out.println("-------------