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使用mongo第一步就是安装,安装之后则是帮助。
当然,最权威的还是官网
官方wiki
安装之后可以将mongodb的bin目录增加到PATH目录中
例如mac:只需要brew install mongodb,
然后将/usr/local/Cellar/mongodb/3.4.2/bin加入到path中即可
创建目录
demo:
/chimps/web_back/mongodb ll drwxr-xr-x 3 chimp wheel 102 3 21 14:01 conf drwxr-xr-x 20 chimp wheel 680 3 21 14:32 data drwxr-xr-x 4 chimp wheel 136 3 21 14:07 log
增加conf文件
此时没有增加用户认证,生产环境肯定要加的
/chimps/web_back/mongodb cat conf/mongod.conf port = 12345dbpath = data logpath = log/mongod.logfork = true
运行mongod -f /conf/mongod.conf
之前将/usr/local/Cellar/mongodb/3.4.2/bin加入到PATH中,mongod可执行文件就在此目录下
日志存放在log/mongod.log中
/chimps/web_back/mongodb tail -f log/mongod.log 2017-03-21T14:07:03.850+0800 I - [initandlisten] Detected data files in /chimps/web_back/mongodb/data created by the 'wiredTiger' storage engine, so setting the active storage engine to 'wiredTiger'. ... ...
~ mongo -h MongoDB shell version v3.4.2 usage: mongo [options] [db address] [file names (ending in .js)] # 格式 db address can be: foo foo database on local machine 192.168.0.5/foo foo database on 192.168.0.5 machine 192.168.0.5:9999/foo foo database on 192.168.0.5 machine on port 9999 Options: --shell run the shell after executing files --nodb don't connect to mongod on startup - no 'db address' arg expected --norc will not run the ".mongorc.js" file on start up --quiet be less chatty --port arg port to connect to --host arg server to connect to --eval arg evaluate javascript -h [ --help ] show this usage information --version show version information --verbose increase verbosity --ipv6 enable IPv6 support (disabled by default) --disableJavaScriptJIT disable the Javascript Just In Time compiler --disableJavaScriptProtection allow automatic JavaScript function marshalling --ssl use SSL for all connections --sslCAFile arg Certificate Authority file for SSL --sslPEMKeyFile arg PEM certificate/key file for SSL --sslPEMKeyPassword arg password for key in PEM file for SSL --sslCRLFile arg Certificate Revocation List file for SSL --sslAllowInvalidHostnames allow connections to servers with non-matching hostnames --sslAllowInvalidCertificates allow connections to servers with invalid certificates --sslFIPSMode activate FIPS 140-2 mode at startup --networkMessageCompressors arg Comma-separated list of compressors to use for network messages --jsHeapLimitMB arg set the js scope's heap size limit Authentication Options: -u [ --username ] arg username for authentication -p [ --password ] arg password for authentication --authenticationDatabase arg user source (defaults to dbname) --authenticationMechanism arg authentication mechanism --gssapiServiceName arg (=mongodb) Service name to use when authenticating using GSSAPI/Kerberos --gssapiHostName arg Remote host name to use for purpose of GSSAPI/Kerberos authentication file names: a list of files to run. files have to end in .js and will exit after unless --shell is specified
只需要:mongo localhost:12345
db.help()
> db.help()
DB methods:
db.adminCommand(nameOrDocument) - switches to 'admin' db, and runs command [ just calls db.runCommand(...) ]
db.auth(username, password)
db.cloneDatabase(fromhost)
db.commandHelp(name) returns the help for the command
db.copyDatabase(fromdb, todb, fromhost)
db.createCollection(name, { size : ..., capped : ..., max : ... } )
db.createView(name, viewOn, [ { $operator: {...}}, ... ], { viewOptions } )
db.createUser(userDocument)
db.currentOp() displays currently executing operations in the db
db.dropDatabase()
db.eval() - deprecated
db.fsyncLock() flush data to disk and lock server for backups
db.fsyncUnlock() unlocks server following a db.fsyncLock()
db.getCollection(cname) same as db['cname'] or db.cname
db.getCollectionInfos([filter]) - returns a list that contains the names and options of the db's collections
db.getCollectionNames()
db.getLastError() - just returns the err msg string
db.getLastErrorObj() - return full status object
db.getLogComponents()
db.getMongo() get the server connection object
db.getMongo().setSlaveOk() allow queries on a replication slave server
db.getName()
db.getPrevError()
db.getProfilingLevel() - deprecated
db.getProfilingStatus() - returns if profiling is on and slow threshold
db.getReplicationInfo()
db.getSiblingDB(name) get the db at the same server as this one
db.getWriteConcern() - returns the write concern used for any operations on this db, inherited from server object if set
db.hostInfo() get details about the server's host
db.isMaster() check replica primary status
db.killOp(opid) kills the current operation in the db
db.listCommands() lists all the db commands
db.loadServerScripts() loads all the scripts in db.system.js
db.logout()
db.printCollectionStats()
db.printReplicationInfo()
db.printShardingStatus()
db.printSlaveReplicationInfo()
db.dropUser(username)
db.repairDatabase()
db.resetError()
db.runCommand(cmdObj) run a database command. if cmdObj is a string, turns it into { cmdObj : 1 }
db.serverStatus()
db.setLogLevel(level,)
db.setProfilingLevel(level,) 0=off 1=slow 2=all
db.setWriteConcern( ) - sets the write concern for writes to the db
db.unsetWriteConcern( ) - unsets the write concern for writes to the db
db.setVerboseShell(flag) display extra information in shell output
db.shutdownServer()
db.stats()
db.version() current version of the server
collection 相关操作
假设我有个user 字段
> db.user.help() DBCollection help db.user.find().help() - show DBCursor help db.user.bulkWrite( operations,) - bulk execute write operations, optional parameters are: w, wtimeout, j db.user.count( query = {}, ) - count the number of documents that matches the query, optional parameters are: limit, skip, hint, maxTimeMS db.user.copyTo(newColl) - duplicates collection by copying all documents to newColl; no indexes are copied. db.user.convertToCapped(maxBytes) - calls {convertToCapped:'user', size:maxBytes}} command db.user.createIndex(keypattern[,options]) db.user.createIndexes([keypatterns], ) db.user.dataSize() db.user.deleteOne( filter, ) - delete first matching document, optional parameters are: w, wtimeout, j db.user.deleteMany( filter, ) - delete all matching documents, optional parameters are: w, wtimeout, j db.user.distinct( key, query, ) - e.g. db.user.distinct( 'x' ), optional parameters are: maxTimeMS db.user.drop() drop the collection db.user.dropIndex(index) - e.g. db.user.dropIndex( "indexName" ) or db.user.dropIndex( { "indexKey" : 1 } ) db.user.dropIndexes() db.user.ensureIndex(keypattern[,options]) - DEPRECATED, use createIndex() instead db.user.explain().help() - show explain help db.user.reIndex() db.user.find([query],[fields]) - query is an optional query filter. fields is optional set of fields to return. db.user.find(...).count() db.user.find(...).limit(n) db.user.find(...).skip(n) db.user.find(...).sort(...) db.user.findOne([query], [fields], [options], [readConcern]) db.user.findOneAndDelete( filter, ) - delete first matching document, optional parameters are: projection, sort, maxTimeMS db.user.findOneAndReplace( filter, replacement, ) - replace first matching document, optional parameters are: projection, sort, maxTimeMS, upsert, returnNewDocument db.user.findOneAndUpdate( filter, update, ) - update first matching document, optional parameters are: projection, sort, maxTimeMS, upsert, returnNewDocument db.user.getDB() get DB object associated with collection db.user.getPlanCache() get query plan cache associated with collection db.user.getIndexes() db.user.group( { key : ..., initial: ..., reduce : ...[, cond: ...] } ) db.user.insert(obj) db.user.insertOne( obj, ) - insert a document, optional parameters are: w, wtimeout, j db.user.insertMany( [objects], ) - insert multiple documents, optional parameters are: w, wtimeout, j db.user.mapReduce( mapFunction , reduceFunction , ) db.user.aggregate( [pipeline], ) - performs an aggregation on a collection; returns a cursor db.user.remove(query) db.user.replaceOne( filter, replacement, ) - replace the first matching document, optional parameters are: upsert, w, wtimeout, j db.user.renameCollection( newName , ) renames the collection. db.user.runCommand( name , ) runs a db command with the given name where the first param is the collection name db.user.save(obj) db.user.stats({scale: N, indexDetails: true/false, indexDetailsKey: , indexDetailsName: }) db.user.storageSize() - includes free space allocated to this collection db.user.totalIndexSize() - size in bytes of all the indexes db.user.totalSize() - storage allocated for all data and indexes db.user.update( query, object[, upsert_bool, multi_bool] ) - instead of two flags, you can pass an object with fields: upsert, multi db.user.updateOne( filter, update, ) - update the first matching document, optional parameters are: upsert, w, wtimeout, j db.user.updateMany( filter, update, ) - update all matching documents, optional parameters are: upsert, w, wtimeout, j db.user.validate( ) - SLOW db.user.getShardVersion() - only for use with sharding db.user.getShardDistribution() - prints statistics about data distribution in the cluster db.user.getSplitKeysForChunks( ) - calculates split points over all chunks and returns splitter function db.user.getWriteConcern() - returns the write concern used for any operations on this collection, inherited from server/db if set db.user.setWriteConcern( ) - sets the write concern for writes to the collection db.user.unsetWriteConcern( ) - unsets the write concern for writes to the collection db.user.latencyStats() - display operation latency histograms for this collection
作者:OrochimaruX
链接:https://www.jianshu.com/p/f70a3fe58056
来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/212/viewspace-2804443/ ,如需转载,请注明出处,否则将追究法律责任。