mongodb doc学习

1.开启/关闭服务

• sudo service mongodb start
• sudo service mongodb stop
• sudo service mongodb restart
• mongod --config /etc/mongodb.conf #通过配置文件启动

fork = true
bind_ip = 127.0.0.1,10.8.0.10,192.168.4.24
port = 27017
quiet = true
dbpath = /srv/mongodb
logpath = /var/log/mongodb/mongod.log
logappend = true
journal = true

nounixsocket = true
auth = true

replSet = set0

keyFile = /srv/mongodb/keyfile

configsvr = true

pidfilepath = /srv/mongodb/db0.pid

slowms = 50
profile = 3
verbose = true
diaglog = 3
objcheck = true
cpu = true

2.shell中连接mongod

mongo --port --host 

3.查看命令

show dbs

show collections

4.查询

db.collection.findOne()#返回一个

db.collection.find() #全部查询，返回cursor

db.collection.find({条件1：value，条件2：value，。。。})#条件查询

db.collection.find().limit(X)#限制查询，返回X个数据