mongoDB的安装与使用

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1 安装

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// 先更新brew
$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
// 安装mongodb
$ brew install mongodb

等待安装成功

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To have launchd start mongodb now and restart at login:
  brew services start mongodb
Or, if you don't want/need a background service you can just run:
  mongod --config /usr/local/etc/mongod.conf

根据提示启动服务

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$ brew services start mongodb

2 使用

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$ mongo
> db.test.insert({name: 'lxc'})
WriteResult({ "nInserted" : 1 })
> db.test.find()
{ "_id" : ObjectId("58d0c768a060bd0547d979a3"), "name" : "lxc" }
>

创建数据库

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> show dbs
admin  0.000GB
local  0.000GB
> use test
switched to db test
// 这时候并不会显示test，要插入一条数据才可以
> show dbs
admin  0.000GB
local  0.000GB
> db.test.insert({name: 'lxc'})
WriteResult({ "nInserted" : 1 })
> show dbs
admin  0.000GB
local  0.000GB
test   0.000GB
>

删除数据库

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> db
test
> db.dropDatabase();
{ "dropped" : "test", "ok" : 1 }
> show dbs
admin  0.000GB
local  0.000GB
>