七、Python Django连接数据库

Python Django连接数据库

一、安装数据库

# yum -y install mysql mysql-devel mysql-server

二、查看是否安装了python数据库组件

# rpm -qa | grep MySQL-python

MySQL-python-1.2.3-0.3.c1.1.el6.x86_64

三、创建数据库

# mysql -uroot -p

mysql> create database csvt character set utf8;

四、创建工程，应用

# django-admin.py startproject csvt03

# cd csvt03

# django-admin.py startapp blog

# vim settings.py (添加应用，修改数据库类型连接用户以及密码)

...

DATABASES = {

    'default': {

        'ENGINE': 'django.db.backends.mysql',

        'NAME': 'csvt',

        'USER': 'root',

        'PASSWORD': '123456',

        'HOST': '',        

        'PORT': '', 

    }

}

............

INSTALLED_APPS = (

    'django.contrib.auth',

    'django.contrib.contenttypes',

    'django.contrib.sessions',

    'django.contrib.sites',

    'django.contrib.messages',

    'django.contrib.staticfiles',

    'blog',

)

...

五、创建表

# cat blog/models.py

from django.db import models

class Employee(models.Model):

    name = models.CharField(max_length=20)  

//（会在数据库csvt employee表中添加一个name字段）

六、同步数据库，将数据写入数据库

# python manage.py syncdb 

Creating tables ...

Creating table auth_permission

Creating table auth_group_permissions

Creating table auth_group

Creating table auth_user_user_permissions

Creating table auth_user_groups

Creating table auth_user

Creating table auth_message

Creating table django_content_type

Creating table django_session

Creating table django_site

Creating table blog_employee

You just installed Django's auth system, which means you don't have any superusers defined.

Would you like to create one now? (yes/no): yes

Installing custom SQL ...

Installing indexes ...

No fixtures found.

七、查看数据库

mysql> use csvt;

Database changed

mysql> show tables;

+----------------------------+

| Tables_in_csvt             |

+----------------------------+

| auth_group                 |

| auth_group_permissions     |

| auth_message               |

| auth_permission            |

| auth_user                  |

| auth_user_groups           |

| auth_user_user_permissions |

| blog_employee              |

| django_content_type        |

| django_session             |

| django_site                |

+----------------------------+

11 rows in set (0.00 sec)

mysql> desc blog_employee;

+-------+-------------+------+-----+---------+----------------+

| Field | Type        | Null | Key | Default | Extra          |

+-------+-------------+------+-----+---------+----------------+

| id    | int(11)     | NO   | PRI | NULL    | auto_increment |

| name  | varchar(20) | NO   |     | NULL    |                |

+-------+-------------+------+-----+---------+----------------+