启动服务
D:\MongoDB\Server\3.6\bin>mongod.exe --dbpath D:\MongoDB\Server\3.6\data 扩展
无认证启动：mongod --port 27017 --dbpath /data/db
认证启动：mongod --auth --port 27017 --dbpath /data/db
连接：mongo --port 27017
查看MongoDB所有Role定义 $ ./mongo.exe
MongoDB shell version v3.6.5
connecting to: mongodb://127.0.0.1:27017
MongoDB server version: 3.6.5
use admin
switched to db admin
db.getRoles(
{
rolesInfo: 1,
showPrivileges:false,
showBuiltinRoles: true
}
)
[
{
"role" : "__queryableBackup",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "__system",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "backup",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "clusterAdmin",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "clusterManager",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "clusterMonitor",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "dbAdmin",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "dbAdminAnyDatabase",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "dbOwner",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "enableSharding",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "hostManager",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "read",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "readAnyDatabase",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "readWrite",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "readWriteAnyDatabase",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "restore",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "root",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "userAdmin",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
},
{
"role" : "userAdminAnyDatabase",
"db" : "admin",
"isBuiltin" : true,
"roles" : [ ],
"inheritedRoles" : [ ]
}
]
创建一个用户（在数据库里新建用户，不指定db默认指向当前db）
创建 db.createUser（用户名，密码，拥有的角色。角色可以写多个）
use test
switched to db test
db.createUser(
{
user: "banana",
pwd: "123456",
roles: [ "readWrite" ]
}
)
Successfully added user: { "user" : "banana", "roles" : [ "readWrite" ] }
db.getUsers()
[
{
"_id" : "test.banana",
"user" : "banana",
"db" : "test",
"roles" : [
{
"role" : "readWrite",
"db" : "test"
}
]
}
]
创建一个用户（在admin数据库里新建用户）
（可以写多个role-db组合）
use admin
switched to db admin
db.createUser(
{
user: "apple",
pwd: "qwer",
roles: [ {role:"read",db:"test"} ]
}
)
Successfully added user: {
"user" : "apple",
"roles" : [
{
"role" : "read",
"db" : "test"
}
]
}
db.getUsers()
[
{
"_id" : "admin.apple",
"user" : "apple",
"db" : "admin",
"roles" : [
{
"role" : "read",
"db" : "test"
}
]
}
]
修改密码
db.changeUserPassword("apple", "niudun")
删除用户（只会删除当前数据库里面的存在的用户）
db.dropUser("apple")
true
下面测试权限，再创建2个用户
test
use test
switched to db test
db.createUser(
{
user: "peach",
pwd: "taozi",
roles: [
{role : "readWrite", db : "test"},
{role : "readWrite", db : "test2"}
]
}
)
Successfully added user: {
"user" : "peach",
"roles" : [
{
"role" : "readWrite",
"db" : "test"
},
{
"role" : "readWrite",
"db" : "test2"
}
]
}
db.getUsers()
[
{
"_id" : "test.banana",
"user" : "banana",
"db" : "test",
"roles" : [
{
"role" : "readWrite",
"db" : "test"
}
]
},
{
"_id" : "test.peach",
"user" : "peach",
"db" : "test",
"roles" : [
{
"role" : "readWrite",
"db" : "test"
},
{
"role" : "readWrite",
"db" : "test2"
}
]
}
]
admin
use admin
switched to db admin
db.createUser(
{
user: "pineapple",
pwd: "boluo",
roles: [ "readWrite", "userAdmin" ]
}
)
Successfully added user: { "user" : "pineapple", "roles" : [ "readWrite", "userAdmin" ] }
db.getUsers()
[
{
"_id" : "admin.apple",
"user" : "apple",
"db" : "admin",
"roles" : [
{
"role" : "read",
"db" : "test"
}
]
},
{
"_id" : "admin.pineapple",
"user" : "pineapple",
"db" : "admin",
"roles" : [
{
"role" : "readWrite",
"db" : "admin"
},
{
"role" : "userAdmin",
"db" : "admin"
}
]
}
]
先把服务开启认证重启
D:\MongoDB\Server\3.6\bin>mongod.exe --auth --dbpath D:\MongoDB\Server\3.6\data
第一种连接方法（先进去再认证）
[d:\MongoDB\Server\3.6\bin]$ mongo.exe
MongoDB shell version v3.6.5
connecting to: mongodb://127.0.0.1:27017
MongoDB server version: 3.6.5
db.stats()
{
"ok" : 0,
"errmsg" : "not authorized on test to execute command { dbstats: 1.0, scale: undefined, $db: \"test\" }",
"code" : 13,
"codeName" : "Unauthorized"
}
你访问之前需要认证
db.auth("banana","123456")
1
查看数据库状态
db.stats()
{
"db" : "test",
"collections" : 2,
"views" : 0,
"objects" : 4,
"avgObjSize" : 73,
"dataSize" : 292,
"storageSize" : 32768,
"numExtents" : 0,
"indexes" : 2,
"indexSize" : 32768,
"fsUsedSize" : 41188569088,
"fsTotalSize" : 332861009920,
"ok" : 1
}
查看集合（也可以用show collections）
show tables
aaa
my_collection
查看集合里面的数据（已有的）
db.aaa.find()
{ "_id" : NumberLong(1), "name" : "BBB", "_class" : "com.example.demo.entity.Book" }
{ "_id" : NumberLong(2), "name" : "CCC", "_class" : "com.example.demo.entity.Book" }
切换admin数据库
use admin
switched to db admin
show tables
2018-08-10T12:59:43.551+0800 E QUERY [thread1] Error: listCollections failed: {
"ok" : 0,
"errmsg" : "not authorized on admin to execute command { listCollections: 1.0, filter: {}, $db: \"admin\" }",
"code" : 13,
"codeName" : "Unauthorized"
} :
_getErrorWithCode@src/mongo/shell/utils.js:25:13
DB.prototype._getCollectionInfosCommand@src/mongo/shell/db.js:941:1
DB.prototype.getCollectionInfos@src/mongo/shell/db.js:953:19
DB.prototype.getCollectionNames@src/mongo/shell/db.js:964:16
shellHelper.show@src/mongo/shell/utils.js:842:9
shellHelper@src/mongo/shell/utils.js:739:15
@(shellhelp2):1:1
（可以得出结论：用户存在哪一个数据库，就只能在那一个数据库上认证）
先用Apple认证（因为没有赋予高级角色，所以不能访问高级内容）
db.auth("apple","niudun")
1
show dbs
2018-08-10T13:07:10.786+0800 E QUERY [thread1] Error: listDatabases failed:{
"ok" : 0,
"errmsg" : "not authorized on admin to execute command { listDatabases: 1.0, $db: \"admin\" }",
"code" : 13,
"codeName" : "Unauthorized"
} :
_getErrorWithCode@src/mongo/shell/utils.js:25:13
Mongo.prototype.getDBs@src/mongo/shell/mongo.js:65:1
shellHelper.show@src/mongo/shell/utils.js:849:19
shellHelper@src/mongo/shell/utils.js:739:15
@(shellhelp2):1:1
我们知道这个apple是拥有test的读取权限的，但是它却存储在admin里，我们用它访问test试试
use admin
switched to db admin
db.auth("apple","niudun")
1
use test
switched to db test
show tables
aaa
my_collection
db.aaa.find()
{ "_id" : NumberLong(1), "name" : "BBB", "_class" : "com.example.demo.entity.Book" }
{ "_id" : NumberLong(2), "name" : "CCC", "_class" : "com.example.demo.entity.Book" }
我们还有一个pineapple，没有与test的联系，看他能不能访问
use admin
switched to db admin
db.auth("pineapple","boluo")
1
use test
switched to db test
show tables
2018-08-10T13:51:49.650+0800 E QUERY [thread1] Error: listCollections failed: {
"ok" : 0,
"errmsg" : "not authorized on test to execute command { listCollections: 1.0, filter: {}, $db: \"test\" }",
"code" : 13,
"codeName" : "Unauthorized"
} :
_getErrorWithCode@src/mongo/shell/utils.js:25:13
DB.prototype._getCollectionInfosCommand@src/mongo/shell/db.js:941:1
DB.prototype.getCollectionInfos@src/mongo/shell/db.js:953:19
DB.prototype.getCollectionNames@src/mongo/shell/db.js:964:16
shellHelper.show@src/mongo/shell/utils.js:842:9
shellHelper@src/mongo/shell/utils.js:739:15
@(shellhelp2):1:1
那么暂时得出结论：创建在admin里面的用户，如果赋予访问其他数据库的权限，则在admin上通过认证之后，可以访问它权限范围内的数据库；否则不能。
那么普通数据库呢？
use test
switched to db test
db.auth("peach","taozi")
1
db.stats()
{
"db" : "test",
"collections" : 2,
"views" : 0,
"objects" : 4,
"avgObjSize" : 73,
"dataSize" : 292,
"storageSize" : 32768,
"numExtents" : 0,
"indexes" : 2,
"indexSize" : 32768,
"fsUsedSize" : 41192714240,
"fsTotalSize" : 332861009920,
"ok" : 1
}
use test2
switched to db test2
show tables
bbb
db.bbb.find()
{ "_id" : ObjectId("5b6d29e778212a9cb2bbd958"), "name" : "test2.bbb.data" }
这个peach用户拥有对test2数据库的访问权限。那么说：无论admin还是普通数据库，只要对创建的用户赋予访问其它数据库的权限，都是可以访问的。
如果说，我不想去指定用户能不能访问某个数据库，用户也可以访问。那可以通过赋予高级权限来搞定
// 这里的pineapple拥有创建用户权限，所以这里可以直接创建新用户并赋予权限
use admin
switched to db admin
db.auth("pineapple","boluo")
1
db.createUser(
{
user: "peach",
pwd: "taozi",
roles: ["dbAdminAnyDatabase"]
}
)
Successfully added user: { "user" : "peach", "roles" : [ "dbAdminAnyDatabase" ] }
db.getUsers()
[
{
"_id" : "admin.apple",
"user" : "apple",
"db" : "admin",
"roles" : [
{
"role" : "read",
"db" : "test"
}
]
},
{
"_id" : "admin.peach",
"user" : "peach",
"db" : "admin",
"roles" : [
{
"role" : "dbAdminAnyDatabase",
"db" : "admin"
}
]
},
{
"_id" : "admin.pineapple",
"user" : "pineapple",
"db" : "admin",
"roles" : [
{
"role" : "readWrite",
"db" : "admin"
},
{
"role" : "userAdmin",
"db" : "admin"
}
]
}
]
db.auth("peach","taozi")
1
use test
switched to db test
show tables
aaa
my_collection
use test2
switched to db test2
show tables
bbb
无意间又发现：不同数据库的用户即使相同，它们之间也互不影响！因为我的peach用户在test数据库也有了,admin中也有。
大概就这么多，有新的会补上
第二种连接方法（登录的时候就认证）
mongo.exe --port 27017 -u "用户名" -p "密码" --authenticationDatabase "认证数据库"
..
[d:\MongoDB\Server\3.6\bin]$ mongo.exe --port 27017 -u "peach" -p "taozi" --authenticationDatabase "admin"
MongoDB shell version v3.6.5
connecting to: mongodb://127.0.0.1:27017/
MongoDB server version: 3.6.5
db.stats()
{
"db" : "test",
"collections" : 2,
"views" : 0,
"objects" : 4,
"avgObjSize" : 73,
"dataSize" : 292,
"storageSize" : 32768,
"numExtents" : 0,
"indexes" : 2,
"indexSize" : 32768,
"fsUsedSize" : 41195212800,
"fsTotalSize" : 332861009920,
"ok" : 1
}
2018-08-10T14:42:32.210+0800 I CONTROL [thread2] CTRL_CLOSE_EVENT signal
2018-08-10T14:42:32.210+0800 I CONTROL [consoleTerminate] got CTRL_CLOSE_EVENT, will terminate after current cmd ends
2018-08-10T14:42:32.211+0800 I CONTROL [consoleTerminate] shutting down with code:12 [d:\MongoDB\Server\3.6\bin]$ mongo.exe --port 27017 -u "pineapple" -p "boluo" --authenticationDatabase "admin"
MongoDB shell version v3.6.5
connecting to: mongodb://127.0.0.1:27017/
MongoDB server version: 3.6.5
db.stats()
{
"ok" : 0,
"errmsg" : "not authorized on test to execute command { dbstats: 1.0, scale: undefined, $db: \"test\" }",
"code" : 13,
"codeName" : "Unauthorized"
}
我先用peach登录，因为它拥有所有数据库的权限，所以默认进来test，可以直接访问的。然而我用pineapple登录，它仅仅拥有admin的权限，所以进来test是不能访问的。
我想说什么呢，我以为会自动进入你输入的认证数据库，结果不是。
最后总结一下用到的命令
| 命令 | 说明 |
| mongod.exe --auth --dbpath D:\MongoDB\Server\3.6\data | 启动服务（认证状态） |
| use [db] | 切换数据库，不存在即创建 |
| show dbs | 查看数据库列表 |
| db.dropDatabase() | 删除当前数据库 |
| db.stats() | 查看数据库状态信息 |
| show tables/collections | 查看当前数据库里的表（集合） |
| mongo.exe --port 27017 -u "peach" -p "taozi" --authenticationDatabase "admin" | 以用户名密码认证登录 |
use admin |
创建用户，可以指定role-db。只有role-默认当前数据库 |
|
use admin |
修改密码。当前数据库下的已存在的用户 |
|
use admin db.dropUser("peach") |
删除用户 |
|
db.dropAllUsers() |
删除所有用户 |
|
use admin db.getUser("peach") |
获取用户信息 |
|
use admin db.getUsers() |
获取所有用户 |
|
use admin db.auth("peach", "123" ) |
认证 |
|
db.collection.find() |
列出集合里面的数据 |
|
db.collection.dataSize() |
集合大小 |
|
db.collection.drop() |
删除集合 |
|
db.collection.insert( { item: "card", qty: 15 } ) |
添加数据 |
概念对比：