目录
一.小白必会三板斧
-
HttpResponse：返回字符串类型的数据
-
render：返回html文件
- redirect：重定向目标网址
def index(request):
print('request')
# return HttpResponse("resquest") # 返回的是字符串
# return render(request,'index.html') # 加载HTML页面的
# return redirect('http://www.baidu.com') # 加载HTML页面的
# return redirect('/home/') # 重定向的二.全局配置文件
LANGUAGE_CODE = 'zh-hans'
TIME_ZONE = 'Asia/Shanghai'
USE_I18N = True
USE_L10N = True
USE_TZ = False
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
}
}
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'app01.apps.App01Config', # 这是全写
]三.静态文件的配置
1.哪些是静态文件
2.静态文件存在Django框架的哪个位置
3.动态解析
{% load static %}
<script src="{% static 'js/jquery_3.7.1_jquery.min.js' %}"></script>
<link rel="stylesheet" href="{% static 'bootstrap-3.4.1-dist/css/bootstrap.min.css' %}">
<script src="{% static 'bootstrap-3.4.1-dist/js/bootstrap.min.js' %}"></script>
"""这个配置是访问静态文件的令牌"""
STATIC_URL = '/dasdasdasdas/'
"""其实就是static文件夹的路径"""
STATICFILES_DIRS = [
os.path.join(BASE_DIR, 'static'),
os.path.join(BASE_DIR, 'static1'),
os.path.join(BASE_DIR, 'static2')
]四.request对象的方法
post提交表单，前期先把下面的代码注释掉
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
# 'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]五.操作数据库
1.连接数据库
修改数据库配置
- settings.py
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'day09',
'USER': 'root',
'PASSWORD': '1314521',
'HOST': '127.0.0.1',
'PORT': 3306,
'CHARSET': 'utf8',
}
}2..Django连接数据库
如何更换pymysql
后续还有一个模块：mysqlclient
六.Django ORM
1.在models.py中建表
from django.db import models
# Create your models here.
class User(models.Model):
# id int primary key auto_increment
id = models.AutoField(primary_key=True)
# username varchar(32)
username = models.CharField(max_length=32)
# password int
password = models.IntegerField()
2.数据库迁移命令
- 将操作记录记录在migrations文件夹，生成迁移记录
python39 manage.py makemigrations- 将操作同步到真正的数据库，生成表
python39 manage.py migrate
