Java tutorial
/******************************************************************************* * Copyright (c) 2013 hangum. * All rights reserved. This program and the accompanying materials * are made available under the terms of the GNU Lesser Public License v2.1 * which accompanies this distribution, and is available at * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html * * Contributors: * hangum - initial API and implementation ******************************************************************************/ package com.hangum.tadpole.mongodb.core.test; import java.io.File; import com.mongodb.DB; import com.mongodb.DBCursor; import com.mongodb.DBObject; import com.mongodb.Mongo; import com.mongodb.gridfs.GridFS; import com.mongodb.gridfs.GridFSDBFile; import com.mongodb.gridfs.GridFSInputFile; /** * db.stats(); * * @author hangum * */ public class MongoTestGridFS { /** * @param args */ public static void main(String[] args) throws Exception { ConAndAuthentication testMongoCls = new ConAndAuthentication(); Mongo mongo = testMongoCls.connection(ConAndAuthentication.serverurl, ConAndAuthentication.port); DB db = mongo.getDB("test"); // saveImage(db); // getImage(db); allList(db); mongo.close(); } private static void allList(DB db) throws Exception { System.out.println("##[all GridFs list] [start]######################"); GridFS gridFs = new GridFS(db); DBCursor dbCursor = gridFs.getFileList(); for (DBObject dbObject : dbCursor) { System.out.println(dbObject); } System.out.println("##[all GridFs list] [end]######################"); } private static void getImage(DB db) throws Exception { String newFileName = "mkyong-java-image"; GridFS gfsPhoto = new GridFS(db, "photo"); GridFSDBFile imageForOutput = gfsPhoto.findOne(newFileName); System.out.println(imageForOutput); } private static void saveImage(DB db) throws Exception { String newFileName = "currentop"; File imageFile = new File("c:/temp/currentop.png"); GridFS gfsPhoto = new GridFS(db); GridFSInputFile gfsFile = gfsPhoto.createFile(imageFile); gfsFile.setFilename(newFileName); gfsFile.save(); } }