推荐步骤：
➢ 在 Centos01 上部署 MongoDB 服务器客户端登录验证
➢ 在 Centos01 的 MongoDB 配置文件通过控制文件控制 MongoDB 服务，配置 MongoDB 身份验证
➢ 在 Centos01 的 MongoDB 服务器配置身份验证管理和修改配置文件支持验证
➢ 在 Centos01 管理 MongoDB 管理数据，集合批量数据管理
实验步骤：
一、在 Centos01 上安装 mongoDB 数据库管理 mongoDB 服务
1、安装 MongoDB
1）创建管理 MongoDB 组和用户
[root@centos01 ~]# groupadd mongod
[root@centos01 ~]# useradd -M -s /sbin/nologin -g mongod mongod
2）解压指定 MongoDB 安装位置[root@centos01 ~]# mv /usr/src/mon
godb-linux-x86_64-rhel70-4.2.24/
/usr/local/mongodb
3）优化命令
[root@centos01 ~]# echo "PATH=$PATH:/usr/local/mongodb/bin/" >> /etc/profile
[root@centos01 ~]# source /etc/profile
2、配置 mongodb 配置文件日志文件初始化 mongoDB
1）创建 MongoDB 数据库的配置文件
[root@centos01 ~]# mkdir /usr/local/mongodb/conf
[root@centos01 ~]# mkdir /usr/local/mongodb/log
[root@centos01 ~]# mkdir /usr/local/mongodb/data
[root@centos01 ~]# chown -R mongod:mongod /usr/local/mongodb/
2）初始化 MongoDB 数据库启动服务
[root@centos01 ~]# mongod --dbpath=/usr/local/mongodb/data/ --
logpath=/usr/local/mongodb/log/mongodb.log --port=27017 --logappend --fork
about to fork child process, waiting until server is ready for connections.
forked process: 1885
child process started successfully, parent exiting
3）查看服务运行状态
[root@centos01 ~]# netstat -anptu | grep mongod
tcp 0 0 127.0.0.1:27017 0.0.0.0:* LISTEN 1885/mongod
3、登录 mongoDB 测试 mongoDB
1）登录 MongoDB
[root@centos01 ~]# mongoTo permanently disable this reminder, run the following command:
db.disableFreeMonitoring()
---
>
2）查看 MongoDB 数据库
> show databases;
admin 0.000GB
config 0.000GB
local 0.000GB
> show dbs
admin 0.000GB
config 0.000GB
local 0.000GB
3）切换数据库查看表
> use admin
switched to db admin
> show tables
system.version
> exit
bye二、生成 MongoDB 配置文件通过控制文件控制 MongoDB 服务，配置
MongoDB 身份验证
1、配置生成 MongoDB 配置文件
1）生成 MongoDB 配置文件
[root@centos01 ~]# vim /usr/local/mongodb/conf/mongo.conf
systemLog:
destination: file
path: "/usr/local/mongodb/log/mongodb.log"
logAppend: true
storage:
journal:
enabled: true
dbPath: "/usr/local/mongodb/data/"
processManagement:
fork: true
net:
port: 27017
bindIp: 192.168.100.10,127.0.0.1
2）修改配置文件所有者
[root@centos01 ~]# chown mongod:mongod /usr/local/mongodb/conf/mongo.conf
3）停止服务
[root@centos01 ~]# mongod -f /usr/local/mongodb/conf/mongo.conf --shutdown
killing process with pid: 1885
2、通过配置文件启动停止 mongoDB
1）通过配置文件启动 mongoDB
[root@centos01 ~]# mongod -f /usr/local/mongodb/conf/mongo.conf
about to fork child process, waiting until server is ready for connections.
forked process: 3663
child process started successfully, parent exiting
2）查看服务运行状态
[root@centos01 ~]# netstat -anptu | grep mongod
tcp 0 0 192.168.100.10:27017 0.0.0.0:* LISTEN 3663/mongod
tcp 0 0 127.0.0.1:27017 0.0.0.0:* LISTEN 3663/mongod
3）通过配置文件停止服务
[root@centos01 ~]# mongod -f /usr/local/mongodb/conf/mongo.conf --shutdown
killing process with pid: 3663
3、登录 mongoDB 停止服务
1）启动 mongoDB 服务
[root@centos01 ~]# mongod -f /usr/local/mongodb/conf/mongo.conf
about to fork child process, waiting until server is ready for connections.
forked process: 3922
child process started successfully, parent exiting
2）登录 mongoDB 切换到 admin 数据库停止服务
[root@centos01 ~]# mongo
> use admin
switched to db admin
> db.shutdownServer()2023-03-16T00:23:10.633+0800 I NETWORK [js] DBClientConnection failed to receive
message from 127.0.0.1:27017 - HostUnreachable: Connection closed by peer
server should be down...
三、配置 mongoDB 身份验证管理和修改配置文件支持验证
1、MongDB 创建管理员和读取写入数据用户
1）创建管理员用户
[root@centos01 ~]# mongo
> use admin //切换到admin数据库
switched to db admin
> db.createUser( //db.createUser函数创建用户
... {
... user: "root", //用户命令root
... pwd: "pwd@123", //授权密码
... roles: [ { role: "root", db: "admin" } ]
//授权角色
... }
)
Successfully added user: {
"user" : "root",
"roles" : [
{
"role" : "root",
"db" : "admin"
}]
}
> exit
bye
2）使用 root 登录创建应用程序访问用户授权读取和写入权限
[root@centos01 ~]# mongo -uroot -ppwd@123 192.168.100.10/admin
> use admin
switched to db admin
> db.createUser(
... {
... user: "bob",
... pwd: "pwd@123",
... roles: [ { role: "readWrite", db: "bob" } ]
... }
... )
Successfully added user: {
"user" : "bob",
"roles" : [
{
"role" : "readWrite",
"db" : "bob"
}
]
1）创建管理 MongoDB 组和用户
[root@centos01 ~]# groupadd mongod
[root@centos01 ~]# useradd -M -s /sbin/nologin -g mongod mongod
2）解压指定 MongoDB 安装位置
[root@centos01 ~]# mv /usr/src/mongodb-linux-x86_64-rhel70-4.2.24/
/usr/local/mongodb
3）优化命令
[root@centos01 ~]# echo "PATH=$PATH:/usr/local/mongodb/bin/" >> /etc/profile
[root@centos01 ~]# source /etc/profile
2、配置 mongodb 配置文件日志文件初始化 mongoDB
1）创建 MongoDB 数据库的配置文件
[root@centos01 ~]# mkdir /usr/local/mongodb/conf
[root@centos01 ~]# mkdir /usr/local/mongodb/log
[root@centos01 ~]# mkdir /usr/local/mongodb/data
[root@centos01 ~]# chown -R mongod:mongod /usr/local/mongodb/
2）初始化 MongoDB 数据库启动服务
[root@centos01 ~]# mongod --dbpath=/usr/local/mongodb/data/ --
logpath=/usr/local/mongodb/log/mongodb.log --port=27017 --logappend --fork
about to fork child process, waiting until server is ready for connections.
forked process: 1885
child process started successfully, parent exiting
3）查看服务运行状态
[root@centos01 ~]# netstat -anptu | grep mongod
tcp 0 0 127.0.0.1:27017 0.0.0.0:* LISTEN 1885/mongod
3、登录 mongoDB 测试 mongoDB
1）登录 MongoDB
[root@centos01 ~]# mongoTo permanently disable this reminder, run the following command:
db.disableFreeMonitoring()
---
>
2）查看 MongoDB 数据库
> show databases;
admin 0.000GB
config 0.000GB
local 0.000GB
> show dbs
admin 0.000GB
config 0.000GB
local 0.000GB
3）切换数据库查看表
> use admin
switched to db admin
> show tables
system.version
> exit
bye二、生成 MongoDB 配置文件通过控制文件控制 MongoDB 服务，配置
MongoDB 身份验证
1、配置生成 MongoDB 配置文件
1）生成 MongoDB 配置文件
[root@centos01 ~]# vim /usr/local/mongodb/conf/mongo.conf
systemLog:
destination: file
path: "/usr/local/mongodb/log/mongodb.log"
logAppend: true
storage:
journal:
enabled: true
dbPath: "/usr/local/mongodb/data/"
processManagement:
fork: true
net:
port: 27017
bindIp: 192.168.100.10,127.0.0.1
2）修改配置文件所有者
[root@centos01 ~]# chown mongod:mongod /usr/local/mongodb/conf/mongo.conf
3）停止服务
[root@centos01 ~]# mongod -f /usr/local/mongodb/conf/mongo.conf --shutdown
killing process with pid: 1885
2、通过配置文件启动停止 mongoDB
1）通过配置文件启动 mongoDB
[root@centos01 ~]# mongod -f /usr/local/mongodb/conf/mongo.conf
about to fork child process, waiting until server is ready for connections.
forked process: 3663
child process started successfully, parent exiting
2）查看服务运行状态
[root@centos01 ~]# netstat -anptu | grep mongod
tcp 0 0 192.168.100.10:27017 0.0.0.0:* LISTEN 3663/mongod
tcp 0 0 127.0.0.1:27017 0.0.0.0:* LISTEN 3663/mongod
3）通过配置文件停止服务
[root@centos01 ~]# mongod -f /usr/local/mongodb/conf/mongo.conf --shutdown
killing process with pid: 3663
3、登录 mongoDB 停止服务
1）启动 mongoDB 服务
[root@centos01 ~]# mongod -f /usr/local/mongodb/conf/mongo.conf
about to fork child process, waiting until server is ready for connections.
forked process: 3922
child process started successfully, parent exiting
2）登录 mongoDB 切换到 admin 数据库停止服务
[root@centos01 ~]# mongo
> use admin
switched to db admin
> db.shutdownServer()2023-03-16T00:23:10.633+0800 I NETWORK [js] DBClientConnection failed to receive
message from 127.0.0.1:27017 - HostUnreachable: Connection closed by peer
server should be down...
三、配置 mongoDB 身份验证管理和修改配置文件支持验证
1、MongDB 创建管理员和读取写入数据用户
1）创建管理员用户
[root@centos01 ~]# mongo
> use admin //切换到admin数据库
switched to db admin
> db.createUser( //db.createUser函数创建用户
... {
... user: "root", //用户命令root
... pwd: "pwd@123", //授权密码
... roles: [ { role: "root", db: "admin" } ]
//授权角色
... }
)
Successfully added user: {
"user" : "root",
"roles" : [
{
"role" : "root",
"db" : "admin"
}]
}
> exit
bye
2）使用 root 登录创建应用程序访问用户授权读取和写入权限
[root@centos01 ~]# mongo -uroot -ppwd@123 192.168.100.10/admin
> use admin
switched to db admin
> db.createUser(
... {
... user: "bob",
... pwd: "pwd@123",
... roles: [ { role: "readWrite", db: "bob" } ]
... }
... )
Successfully added user: {
"user" : "bob",
"roles" : [
{
"role" : "readWrite",
"db" : "bob"
}
]
}
exitbye
1）创建管理 MongoDB 组和用户
[root@centos01 ~]# groupadd mongod
[root@centos01 ~]# useradd -M -s /sbin/nologin -g mongod mongod
2）解压指定 MongoDB 安装位置
[root@centos01 ~]# mv /usr/src/mongodb-linux-x86_64-rhel70-4.2.24/
/usr/local/mongodb
3）优化命令
[root@centos01 ~]# echo "PATH=$PATH:/usr/local/mongodb/bin/" >> /etc/profile
[root@centos01 ~]# source /etc/profile
2、配置 mongodb 配置文件日志文件初始化 mongoDB
1）创建 MongoDB 数据库的配置文件
[root@centos01 ~]# mkdir /usr/local/mongodb/conf
[root@centos01 ~]# mkdir /usr/local/mongodb/log
[root@centos01 ~]# mkdir /usr/local/mongodb/data
[root@centos01 ~]# chown -R mongod:mongod /usr/local/mongodb/
2）初始化 MongoDB 数据库启动服务
[root@centos01 ~]# mongod --dbpath=/usr/local/mongodb/data/ --
logpath=/usr/local/mongodb/log/mongodb.log --port=27017 --logappend --fork
about to fork child process, waiting until server is ready for connections.
forked process: 1885
child process started successfully, parent exiting
3）查看服务运行状态
[root@centos01 ~]# netstat -anptu | grep mongod
tcp 0 0 127.0.0.1:27017 0.0.0.0:* LISTEN 1885/mongod
3、登录 mongoDB 测试 mongoDB
1）登录 MongoDB
[root@centos01 ~]# mongoTo permanently disable this reminder, run the following command:
db.disableFreeMonitoring()
---
>
2）查看 MongoDB 数据库
> show databases;
admin 0.000GB
config 0.000GB
local 0.000GB
> show dbs
admin 0.000GB
config 0.000GB
local 0.000GB
3）切换数据库查看表
> use admin
switched to db admin
> show tables
system.version
> exit
bye
二、生成 MongoDB 配置文件通过控制文件控制 MongoDB 服务，配置
MongoDB 身份验证
1、配置生成 MongoDB 配置文件
1）生成 MongoDB 配置文件
[root@centos01 ~]# vim /usr/local/mongodb/conf/mongo.conf
systemLog:
destination: file
path: "/usr/local/mongodb/log/mongodb.log"
logAppend: true
storage:
journal:
enabled: true
dbPath: "/usr/local/mongodb/data/"
processManagement:
fork: true
net:
port: 27017
bindIp: 192.168.100.10,127.0.0.1
2）修改配置文件所有者
[root@centos01 ~]# chown mongod:mongod /usr/local/mongodb/conf/mongo.conf
3）停止服务
[root@centos01 ~]# mongod -f /usr/local/mongodb/conf/mongo.conf --shutdown
killing process with pid: 1885
2、通过配置文件启动停止 mongoDB
1）通过配置文件启动 mongoDB
[root@centos01 ~]# mongod -f /usr/local/mongodb/conf/mongo.conf
about to fork child process, waiting until server is ready for connections.
forked process: 3663
child process started successfully, parent exiting
2）查看服务运行状态
[root@centos01 ~]# netstat -anptu | grep mongod
tcp 0 0 192.168.100.10:27017 0.0.0.0:* LISTEN 3663/mongod
tcp 0 0 127.0.0.1:27017 0.0.0.0:* LISTEN 3663/mongod
3）通过配置文件停止服务
[root@centos01 ~]# mongod -f /usr/local/mongodb/conf/mongo.conf --shutdown
killing process with pid: 3663
3、登录 mongoDB 停止服务
1）启动 mongoDB 服务
[root@centos01 ~]# mongod -f /usr/local/mongodb/conf/mongo.conf
about to fork child process, waiting until server is ready for connections.
forked process: 3922
child process started successfully, parent exiting
2）登录 mongoDB 切换到 admin 数据库停止服务
[root@centos01 ~]# mongo
> use admin
switched to db admin
> db.shutdownServer()2023-03-16T00:23:10.633+0800 I NETWORK [js] DBClientConnection failed to receive
message from 127.0.0.1:27017 - HostUnreachable: Connection closed by peer
server should be down...
三、配置 mongoDB 身份验证管理和修改配置文件支持验证
1、MongDB 创建管理员和读取写入数据用户
1）创建管理员用户
[root@centos01 ~]# mongo
> use admin //切换到admin数据库
switched to db admin
> db.createUser( //db.createUser函数创建用户
... {
... user: "root", //用户命令root
... pwd: "pwd@123", //授权密码
... roles: [ { role: "root", db: "admin" } ]
//授权角色
... }
)
Successfully added user: {
"user" : "root",
"roles" : [
{
"role" : "root",
"db" : "admin"
}]
}
> exit
bye
2）使用 root 登录创建应用程序访问用户授权读取和写入权限
[root@centos01 ~]# mongo -uroot -ppwd@123 192.168.100.10/admin
> use admin
switched to db admin
> db.createUser(
... {
... user: "bob",
... pwd: "pwd@123",
... roles: [ { role: "readWrite", db: "bob" } ]
... }
... )
Successfully added user: {
"user" : "bob",
"roles" : [
{
"role" : "readWrite",
"db" : "bob"
}
]
}
> exix
bye
3）使用普通用户登录 mongoDB
[root@centos01 ~]# mongo -ubob -ppwd@123 192.168.100.10/admin
2、修改 mongoDB 主配置文件支持验证
1）修改 mongoDB 主配置文件
[root@centos01 ~]# vim /usr/local/mongodb/conf/mongo.conf
systemLog:
destination: file
path: "/usr/local/mongodb/log/mongodb.log"
logAppend: true
storage:
journal:
enabled: true
dbPath: "/usr/local/mongodb/data/"
processManagement:
fork: true
net:
port: 27017
bindIp: 192.168.100.10,127.0.0.1
security:
authorization: enabled
2）停止服务启动加载身份验证
[root@centos01 ~]# mongod -f /usr/local/mongodb/conf/mongo.conf --shutdown
killing process with pid: 4337
[root@centos01 ~]# mongod -f /usr/local/mongodb/conf/mongo.confabout to fork child process, waiting until server is ready for connections.
forked process: 6113
child process started successfully, parent exiting
3、配置客户端登录进行身份验证
1）通过 IP 地址或者数据库验证登录
[root@centos01 ~]# mongo -uroot -ppwd@123 admin
[root@centos01 ~]# mongo -uroot -ppwd@123 192.168.100.10/admin
2）登录进行验证
[root@centos01 ~]# mongo
> use admin
switched to db admin
> db.auth('root','pwd@123')
1
> show dbs;
admin 0.000GB
config 0.000GB
local 0.000GB
3）查看创建授权的用户
> use admin //切换到admin数据库
switched to db admin
> db.system.users.find() //查看users表中创建的用户信息
{ "_id" : "admin.root", "userId" : UUID("bbbb8384-552d-43b7-bdbd-849c811a7fba"),
"user" : "root", "db" : "admin", "credentials" : { "SCRAM-SHA-1" :
{ "iterationCount" : 10000, "salt" : "OWAQ5bhvBM5xsUgG57vrRg==", "storedKey" :
"VhzOEnNHc1EneG2JwkIb/hgVzqc=", "serverKey" : "N95vRRKEPtbpy0M0PtUH4WbXidc=" }, "SCRAM-SHA-256" : { "iterationCount" : 15000, "salt" :
"srIf+zffJydaFBlm7NoOtJCCb+VF4/28B3Vigw==", "storedKey" :
"ZQXhhxJ2NpaNuMw2CvfXic+3KcTEE150Mk/fJ55WDM4=", "serverKey" :
"kCjYi9BLpDyL+kDRoQzNsKgsOZtJvQjXT9dW+/cWN4k=" } }, "roles" : [ { "role" : "root",
"db" : "admin" } ] }
{ "_id" : "admin.bob", "userId" : UUID("23c4a9a8-8765-440e-bc1c-9bd0892c6661"),
"user" : "bob", "db" : "admin", "credentials" : { "SCRAM-SHA-1" :
{ "iterationCount" : 10000, "salt" : "GOIEIxWUxjvXqNYlYdaplQ==", "storedKey" :
"6HBrMz8gUVURJWsV3TKb3ITB4pk=", "serverKey" : "rh7mibsdVUfcoQtbaV2PImqPlUM=" },
"SCRAM-SHA-256" : { "iterationCount" : 15000, "salt" :
"uTrQFcgpS/yxvc6yUmJ9U58Jwv51IalUOo223w==", "storedKey" :
"8q+7cXeEkL4ZyEMokSDzwsvay6vqjl9nxLy6zu3P27A=", "serverKey" :
"u24JQWS0TXn1Fmj0bnjrc8OUzzCdGICI3xN+EX7X00A=" } }, "roles" : [ { "role" :
"readWrite", "db" : "bob" } ] }
> exit
bye
4）查看用户信息
> db.system.users.find().pretty()
{
"_id" : "admin.root",
"userId" : UUID("bbbb8384-552d-43b7-bdbd-849c811a7fba"),
"user" : "root",
"db" : "admin",
"credentials" : {
"SCRAM-SHA-1" : {"iterationCount" : 10000,
"salt" : "OWAQ5bhvBM5xsUgG57vrRg==",
"storedKey" : "VhzOEnNHc1EneG2JwkIb/hgVzqc=",
"serverKey" : "N95vRRKEPtbpy0M0PtUH4WbXidc="
},
"SCRAM-SHA-256" : {
"iterationCount" : 15000,
"salt" : "srIf+zffJydaFBlm7NoOtJCCb+VF4/28B3Vigw==",
"storedKey" : "ZQXhhxJ2NpaNuMw2CvfXic+3KcTEE150Mk/fJ55WDM4=",
"serverKey" : "kCjYi9BLpDyL+kDRoQzNsKgsOZtJvQjXT9dW+/cWN4k="
}
},
"roles" : [
{
"role" : "root",
"db" : "admin"
}
]
}
{
"_id" : "admin.bob",
"userId" : UUID("23c4a9a8-8765-440e-bc1c-9bd0892c6661"),
"user" : "bob",
"db" : "admin","credentials" : {
"SCRAM-SHA-1" : {
"iterationCount" : 10000,
"salt" : "GOIEIxWUxjvXqNYlYdaplQ==",
"storedKey" : "6HBrMz8gUVURJWsV3TKb3ITB4pk=",
"serverKey" : "rh7mibsdVUfcoQtbaV2PImqPlUM="
},
"SCRAM-SHA-256" : {
"iterationCount" : 15000,
"salt" : "uTrQFcgpS/yxvc6yUmJ9U58Jwv51IalUOo223w==",
"storedKey" : "8q+7cXeEkL4ZyEMokSDzwsvay6vqjl9nxLy6zu3P27A=",
"serverKey" : "u24JQWS0TXn1Fmj0bnjrc8OUzzCdGICI3xN+EX7X00A="
}
},
"roles" : [
{
"role" : "readWrite",
"db" : "bob"
}
]
}
四、配置 mongoDB 基本管理
1、mongoDB 数据库基本管理
1）查看 mongoDB 数据库版本
[root@centos01 ~]# mongo -uroot -ppwd@123 192.168.100.10/admin
> db.version()
4.2.24
2）显示当前数据库
> db
admin
3）查看当前数据库状态
> db.stats()
{
"db" : "admin",
"collections" : 2,
"views" : 0,
"objects" : 4,
"avgObjSize" : 287.25,
"dataSize" : 1149,
"storageSize" : 73728,
"numExtents" : 0,
"indexes" : 3,
"indexSize" : 110592,
"scaleFactor" : 1,
"fsUsedSize" : 4763291648,
"fsTotalSize" : 81353875456,"ok" : 1
}
4）查看数据库连接请求
> db.getMongo()
connection to 192.168.100.10:27017
5）切换到指定数据库
> use benet
switched to db benet
6）benet 数据库创建表 student 表插，id 插入 1
> db.student.insert({id:1})
WriteResult({ "nInserted" : 1 })7）查看创建数据库
> show dbs
admin 0.000GB
benet 0.000GB
config 0.000GB
local 0.000G
8）删除当前数据库
> db.dropDatabase()
{ "dropped" : "benet", "ok" : 1 }
2、集合的基本管理
1）创建 a 表插入数据
> db.a.insert({id:1})
WriteResult({ "nInserted" : 1 })
> db.b.insert({id:2})WriteResult({ "nInserted" : 1 })2）查看表
> show tables;
a
b
3）查询表中数据
> db.a.find()
{ "_id" : ObjectId("641200d9810124bd98a26a78"), "id" : 1 }
4）创建集合名字 c 查看创建集合
> db.createCollection('c');
{ "ok" : 1 }
> show tables;
a
b
c5）删除集合
> db.c.drop()
true
> show tables;
a
b
3、插入数据和批量插入数据
1）accp 库创建集合 t1 插入数据
> use accp
switched to db accp> db.t1.insert({id:110,name:"bob"})
WriteResult({ "nInserted" : 1 })
> db.t1.find()
{ "_id" : ObjectId("64120367810124bd98a26a7a"), "id" : 110, "name" : "bob" }
> db.t1.insert({姓名:"张三",年龄:18,学历:"大专"})
WriteResult({ "nInserted" : 1 })
> db.t1.find()
{ "_id" : ObjectId("64120367810124bd98a26a7a"), "id" : 110, "name" : "bob" }
{ "_id" : ObjectId("641203c3810124bd98a26a7b"), "姓名" : "张三", "年龄" : 18, "学历
" : "大专" }
2）插入多个连续连数据
> db.t1.insertMany([
... {name:"bob"},
... {name:"tom"},
... {name:"alice"}
... ])
{
"acknowledged" : true,
"insertedIds" : [
ObjectId("641205bd810124bd98a26a7c"),
ObjectId("641205bd810124bd98a26a7d"),
ObjectId("641205bd810124bd98a26a7e")
]
}
> db.t1.find(){ "_id" : ObjectId("64120367810124bd98a26a7a"), "id" : 110, "name" : "bob" }
{ "_id" : ObjectId("641203c3810124bd98a26a7b"), "姓名" : "张三", "年龄" : 18, "学历
" : "大专" }
{ "_id" : ObjectId("641205bd810124bd98a26a7c"), "name" : "bob" }
{ "_id" : ObjectId("641205bd810124bd98a26a7d"), "name" : "tom" }
{ "_id" : ObjectId("641205bd810124bd98a26a7e"), "name" : "alice" }
3）批量化插入数据
> for(i=0;i<100;i++){ db.t1.insert({"编号":i,"名字":"test","年龄":18,"date":new
Date()});}
WriteResult({ "nInserted" : 1 })4）查询编号为 50 的记录
> db.t1.find({编号:50})
{ "_id" : ObjectId("6412071c810124bd98a26ab1"), "编号" : 50, "名字" : "test", "年龄
" : 18, "date" : ISODate("2023-03-15T17:57:48.513Z") }5）清空 t1 表中数据
> db.t1.remove({});