Shulou(Shulou.com)06/01 Report--

First add the driver package for mongodb

And opened the mongodb service.

Package com.zzq.test

Import java.net.UnknownHostException

Import com.mongodb.DB

Import com.mongodb.DBCollection

Import com.mongodb.DBCursor

Import com.mongodb.Mongo

Import com.mongodb.MongoException

Import com.mongodb.util.JSON

Public class MongDBTest {

Public static void main (String [] args) throws UnknownHostException, MongoException {

Mongo mg = new Mongo ("localhost", 27017)

/ / query all Database

For (String name: mg.getDatabaseNames ()) {

System.out.println ("dbName:" + name)

}

DB db = mg.getDB ("mircroblog")

/ / query all aggregate collections

For (String name: db.getCollectionNames ()) {

System.out.println ("collectionName:" + name)

}

DBCollection users = db.getCollection ("citizens")

/ / query all data

DBCursor cur = users.find ()

While (cur.hasNext ()) {

System.out.println (cur.next ())

}

System.out.println (cur.count ())

System.out.println (cur.getCursorId ())

System.out.println (JSON.serialize (cur))

}

}

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