3-在Django中使用使用数据库

 1 [root@localhost ~]# systemctl start mariadb     // 启动mysql服务
 2 [root@localhost ~]# mysql_secure_installation   // 初始化mysql数据库
 3 
 4 // 进入mariadb的初始化配置模式
 5 NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
 6       SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!
 7 
 8 In order to log into MariaDB to secure it, we‘ll need the current
 9 password for the root user.  If you‘ve just installed MariaDB, and
10 you haven‘t set the root password yet, the password will be blank,
11 so you should just press enter here.
12 
13 ERROR 1045 (28000): Access denied for user ‘root‘@‘localhost‘ (using password: YES)
14 Enter current password for root (enter for none):    // 这里输入mysql数据库root密码，默认没有密码
15 OK, successfully used password, moving on...
16 
17 Setting the root password ensures that nobody can log into the MariaDB
18 root user without the proper authorisation.
19 
20 Set root password? [Y/n] y     //  是否为mysql数据库root用户设置密码，这里我们设置密码
21 New password:    // 输入要设置的密码
22 Re-enter new password:   // 确认输入的密码
23 Password updated successfully!
24 Reloading privilege tables..
25  ... Success!
26 
27 
28 By default, a MariaDB installation has an anonymous user, allowing anyone
29 to log into MariaDB without having to have a user account created for
30 them.  This is intended only for testing, and to make the installation
31 go a bit smoother.  You should remove them before moving into a
32 production environment.
33 
34 Remove anonymous users? [Y/n] y   //  是否要删除匿名用户，这里删除掉。要不然可以在不输入用户名和密码的情况下登陆数据库
35  ... Success!
36 
37 Normally, root should only be allowed to connect from ‘localhost‘.  This
38 ensures that someone cannot guess at the root password from the network.
39 
40 Disallow root login remotely? [Y/n] n   // 是否拒绝root用户从远程登陆数据库，这里允许root用户远程登陆数据库
41  ... skipping.
42 
43 By default, MariaDB comes with a database named ‘test‘ that anyone can
44 access.  This is also intended only for testing, and should be removed
45 before moving into a production environment.
46 
47 Remove test database and access to it? [Y/n] y   // 是否删除mysql自带的test测试数据库，这里没什么用就删除了吧
48  - Dropping test database...
49  ... Success!
50  - Removing privileges on test database...
51  ... Success!
52 
53 Reloading the privilege tables will ensure that all changes made so far
54 will take effect immediately.
55 
56 Reload privilege tables now? [Y/n] y   // 是否立即生效，这里立即生效
57  ... Success!
58 
59 Cleaning up...
60 
61 All done!  If you‘ve completed all of the above steps, your MariaDB
62 installation should now be secure.
63 
64 Thanks for using MariaDB!
65 
66 mariadb数据库的初始化

[mysqld]

character-set-server=utf8           // 设置服务端的字符集
collation-server=utf8_general_ci    // 设置服务端的字符集

datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd

[mysqld_safe]
log-error=/var/log/mariadb/mariadb.log
pid-file=/var/run/mariadb/mariadb.pid

[client]                //  设置客户端的字符集
default-character-set=utf8 
[mysql]                //  设置客户端的字符集
default-character-set=utf8
#
# include all files from the config directory
#
!includedir /etc/my.cnf.d

 1 [root@localhost mysite]# vim mysite/settings.py
 2 DATABASES = {
 3     ‘default‘: {
 4         ‘ENGINE‘: ‘django.db.backends.mysql‘,
 5         ‘HOST‘: ‘192.168.10.100‘,
 6         ‘PORT‘: 3306,
 7         ‘NAME‘: ‘mysite‘,
 8         ‘USER‘: ‘mysite_user‘,
 9         ‘PASSWORD‘: ‘123.abc‘,
10     }
11 }