史上最全MongoDB之Mongo Shell使用_janyxe

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MongoDB系列文章目录史上最全MongoDB之初识篇史上最全MongoDB之部署篇史上最全MongoDB之Mongo Shell使用

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前言

本系列课程将带着大家以面试题的方式深入分布式专题之MongoDB。这篇文章带着大家深入MongoDB Shell使用

Mongo Shell介绍 MongoDB自带Javascript Shell, 可在Shell中使用命令行与MongoDB实列交互Mongo Shell 由Mozilla官方提供的JavaScript内核解释器,内部使用SpiderMonkeySpiderMonkey对ECMA Script标准兼容性非常好，支持ES 6(ECMA Script 6) Mongo Shell启动

Mongo Shell 参数如下

[root@localhost mongodb]# mongo --help MongoDB shell version v4.4.14 usage: mongo [options] [db address] [file names (ending in .js)] 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 mongodb://192.168.0.5:9999/foo connection string URI can also be used Options: --ipv6 enable IPv6 support (disabled by default) --host arg server to connect to --port arg port to connect to -h [ --help ] show this usage information --version show version information --verbose increase verbosity --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 --eval arg evaluate javascript --disableJavaScriptJIT disable the Javascript Just In Time compiler --enableJavaScriptJIT enable the Javascript Just In Time compiler --disableJavaScriptProtection allow automatic JavaScript function marshalling --retryWrites automatically retry write operations upon transient network errors --disableImplicitSessions do not automatically create and use implicit sessions --jsHeapLimitMB arg set the js scope's heap size limit --idleSessionTimeout arg (=0) Terminate the Shell session if it's been idle for this many seconds FLE AWS Options: --awsAccessKeyId arg AWS Access Key for FLE Amazon KMS --awsSecretAccessKey arg AWS Secret Key for FLE Amazon KMS --awsSessionToken arg Optional AWS Session Token ID --keyVaultNamespace arg database.collection to store encrypted FLE parameters --kmsURL arg Test parameter to override the URL for KMS AWS IAM Options: --awsIamSessionToken arg AWS Session Token for temporary credentials TLS Options: --tls use TLS for all connections --tlsCertificateKeyFile arg PEM certificate/key file for TLS --tlsCertificateKeyFilePassword arg Password for key in PEM file for TLS --tlsCAFile arg Certificate Authority file for TLS --tlsCRLFile arg Certificate Revocation List file for TLS --tlsAllowInvalidHostnames Allow connections to servers with non-matching hostnames --tlsAllowInvalidCertificates Allow connections to servers with invalid certificates --tlsFIPSMode Activate FIPS 140-2 mode at startup --tlsDisabledProtocols arg Comma separated list of TLS protocols to disable [TLS1_0,TLS1_1,TLS1_2] 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 [root@localhost mongodb]#

可选参数如下

mongo -u <user> -p <pass> --host <host> --port <port> 参数说明–port端口号, 未指定为默认端口 27017-u / -username用户名-p / -password密码-authenticationDatabase认证数据库

本地客户端可直接mongo 启动

[root@localhost mongodb]# mongo

Mongo Shell 常用命令数据库常用命令 show dbs / show databases 命令概念

显示数据库列表

命令应用 > show dbs; admin 0.000GB config 0.000GB local 0.000GB

use 数据库名命令概念

切换数据库，数据库不存在时会自动创建

命令应用 > show dbs; admin 0.000GB config 0.000GB local 0.000GB

db.dropDatabase() 命令概念

删除集合

命令应用 > db.emp.drop() true > show collections

集合常见操作 show collections / show tables 查看集合命令概念

查询当前数据库的集合列表数据

命令应用 > show dbs admin 0.000GB config 0.000GB local 0.000GB > use test switched to db test > db.emp.insert({i:1}) WriteResult({ "nInserted" : 1 }) > show collections emp

db.collections(集合名).stats() 查看集合详情命令概念

查看集合详情

命令应用 > db.emp.stats() { "ns" : "test.emp", "size" : 33, "count" : 1, "avgObjSize" : 33, "storageSize" : 20480, "freeStorageSize" : 0, "capped" : false, "wiredTiger" : { "metadata" : { "formatVersion" : 1 }, ... "scaleFactor" : 1, "ok" : 1 }

db.collections(集合名).drop() 删除集合命令概念

删除集合

命令应用 > db.emp.drop() true > show collections

用户角色命令 show roles 查看角色列表命令概念

查看角色列表

命令应用 > show roles { "role" : "dbAdmin", "db" : "test", "isBuiltin" : true, "roles" : [ ], "inheritedRoles" : [ ] } { "role" : "dbOwner", "db" : "test", "isBuiltin" : true, "roles" : [ ], "inheritedRoles" : [ ] } { "role" : "enableSharding", "db" : "test", "isBuiltin" : true, "roles" : [ ], "inheritedRoles" : [ ] } { "role" : "read", "db" : "test", "isBuiltin" : true, "roles" : [ ], "inheritedRoles" : [ ] } { "role" : "readWrite", "db" : "test", "isBuiltin" : true, "roles" : [ ], "inheritedRoles" : [ ] } { "role" : "userAdmin", "db" : "test", "isBuiltin" : true, "roles" : [ ], "inheritedRoles" : [ ] }

db.createUser(用户信息) 创建用户命令概念

创建用户

命令格式

db.createUser({user:“用户名”,pwd:“名称”,roles:[“角色”]})

命令参数含义user用户名称pwd密码roles角色列表

命令应用

创建test库，并指定test库的管理员

> use test switched to db test > dn.createUser({user:"test",pwd:"test",roles:['dbOwner']}) uncaught exception: ReferenceError: dn is not defined : @(shell):1:1 > use test switched to db test > db.createUser({user:"test",pwd:"test",roles:['dbOwner']}) Successfully added user: { "user" : "test", "roles" : [ "dbOwner" ] } > show users { "_id" : "test.test", "userId" : UUID("d9be5de9-8c28-4b2b-8d88-530be7846b14"), "user" : "test", "db" : "test", "roles" : [ { "role" : "dbOwner", "db" : "test" } ], "mechanisms" : [ "SCRAM-SHA-1", "SCRAM-SHA-256" ] } >

db.dropUser(用户名称) 删除用户命令概念

创建用户

命令格式

db.dropUser(“用户名”)

命令应用

db.dropUser(“test”)

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