gridfs:Node.js 的 GridFS 包装器模块

网格文件 Node.js 的 GridFS 包装器模块。 var fs = require ( 'fs' ) ; var mongo = require ( 'mongodb' ) ; var Grid = require ( 'gridfs' ) ; mongo . MongoClient . connect ( yourMongoURI , function ( err , db ) { var gfs = Grid ( db , mongo ) ; var source = './example.txt' ; gfs . fromFile ( { filename : 'hello.txt' } , source , function ( err , file ) { console . log ( 'saved %s to GridFS file %s' ,