Ubuntu下MongoDB安装教程

Ubuntu安装与配置Mongodb：

安装：
```
sudo apt-get install mongodb
```
在自己想要的位置新建data,logs文件夹分别用于存放数据，日志文件：
```
mkdir Mongodb
cd Mongodb
mkdir data
mkdir logs
```

修改配置文件：

vim /etc/mongodb.conf

显示如下：

# mongodb.conf

 # Where to store the data.
 #dbpath=/var/lib/mongodb
 dbpath=/home/ziven/Workspace/Work/ziven/Mongodb/data

 #where to log
 #logpath=/var/log/mongodb/mongodb.log
 logpath=/home/ziven/Workspace/Work/ziven/Mongodb/logs/mongodb.log

 logappend=true

 #bind_ip = 127.0.0.1
 bind_ip = 0.0.0.0
 port = 27017

 # Enable journaling, http://www.mongodb.org/display/DOCS/Journaling
 journal=true

 # Enables periodic logging of CPU utilization and I/O wait
 #cpu = true

 # Turn on/off security.  Off is currently the default
 #noauth = true
 #auth = true

 ... ... ...

注：将其中的dbpath与logpath分别改成你所设定绝对路径，其中logpath指向的是/logs/mongodb.log文件，该文件不需要自己创建，写上去就好

重启mongodb服务：
```
sudo /etc/init.d/mongod restart
```

设置开机自动启动与关机关闭:

 sudo vim /lib/systemd/system/mongodb.service

 [Unit]
 Description=An object/document-oriented database
 Documentation=man:mongod(1)

 [Service]
 User=mongodb
 ExecStart=/usr/bin/mongod --config /etc/mongodb.conf
 # my add
 ExecStop=/usr/bin/mongod --shutdown --config /etc/mongodb.conf
 PrivateTmp=false

 [Install]
 WantedBy=multi-user.target

使用Mongodb：

后台运行mongodb：

nohup mongod --dbpath /home/ziven/Workspace/Work/ziven/Mongodb/data/ &
[1] 2245
ziven@Lucy:~/Workspace/Work/ziven/Mongodb/etc$ nohup: ignoring input and appending output to 'nohup.out'

# 可以使用jobs查看后台任务
jobs -l
[1]+  2245 Running                 nohup mongod --dbpath /home/ziven/Workspace/Work/ziven/Mongodb/data/ &

# 输入mongo进入mongodb
mongo
MongoDB shell version: 2.6.10
connecting to: test
>

简单使用mongodb：

 mongo
 MongoDB shell version: 2.6.10
 connecting to: test
 > show dbs
 admin  0.078GB
 local  0.078GB
 > use test
 switched to db test
 > db.col.insert({"name":"jack","age":"8"})
 WriteResult({ "nInserted" : 1 })
 > show tables
 col
 system.indexes
 > db.col.findOne()
 {
         "_id" : ObjectId("5bc03f306328d30a46c88a55"),
         "name" : "jack",
         "age" : "8"
 }
 > quit()

使用Robo 3T：

Robo 3T是mongodb的可视化客户端，需要使用图像界面，支持多种平台

下载并安装Robo 3T： https://robomongo.org/download
点击左上方电脑图标
点击Create,在Address一栏中输入IPv4地址，若未进行设置且在本地运行的Robo3T则默认为localhost
点击Save
点击Connect
此时多了一个连接，打开下拉菜单可以找到刚刚我们创建的test和col，以及其中的jack

关闭Mongodb服务：

进入mongo

mongo
MongoDB shell version: 2.6.10
connecting to: test
> use admin
switched to db admin
> db.shutdownServer()
2018-10-12T14:43:11.660+0800 DBClientCursor::init call() failed
server should be down...
2018-10-12T14:43:11.664+0800 trying reconnect to 127.0.0.1:27017 (127.0.0.1) failed
2018-10-12T14:43:11.664+0800 warning: Failed to connect to 127.0.0.1:27017, reason: errno:111 Connection refused
2018-10-12T14:43:11.664+0800 reconnect 127.0.0.1:27017 (127.0.0.1) failed failed couldn't connect to server 127.0.0.1:27017 (127.0.0.1), connection attempt failed
> quit()
[1]+  Done                    nohup mongod --dbpath /home/ziven/Workspace/Work/ziven/Mongodb/data/

此时输入jobs -l可以发现，后台的任务已经关闭

Ubuntu下MongoDB安装教程

"瞎折腾"

Ubuntu安装与配置Mongodb：

使用Mongodb：

使用Robo 3T：

关闭Mongodb服务：

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