python使用jdango创建web项目完整步骤

一、首先我们使用pycharm创建一个jdango项目

app名称为jdango_Second,创建好的格式如图所示：



二、我们创建的项目是MTV模式的

即model(对应数据库),templates（页面显示）,view（逻辑处理）

          models.py:

from django.db import models

# Create your models here.
class Stu(models.Model):
id = models.CharField(max_length=16,primary_key=True)
name=models.CharField(default='dqd',max_length=16)
views.py:

from django.shortcuts import render
from jdango_Second.models import Stu
# Create your views here.
def showInfo(request):
stu_list = Stu.objects.all()
content = {'list':stu_list}
return render(request,'index.html',content)

在admin.py将models.py中的类注册：
from django.contrib import admin
from jdango_Second.models import Stu
# Register your models here.
admin.site.register(Stu)

在项目的__init__.py我们可以做一些初始化（second）：

import pymysql
pymysql.install_as_MySQLdb()

db = pymysql.connect("localhost",'root','','py_second')

cursor = db.cursor()

cursor.execute('SELECT VERSION()')

data = cursor.fetchone()

print("Version is %s" % data)

db.close()

同样在项目的setting.py中我们设置链接的数据库和制定静态路径和templates的路径：
"""
Django settings for second project.

Generated by 'django-admin startproject' using Django 1.11.2.

For more information on this file, see https://docs.djangoproject.com/en/1.11/topics/settings/
For the full list of settings and their values, see https://docs.djangoproject.com/en/1.11/ref/settings/ """

import os

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.11/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'z=%7&(7pk#$)=2h+gs#kz9479#cvd1%1f#sd98nzz-#18ke0(2'

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = []

# Application definition

INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'jdango_Second.apps.JdangoSecondConfig',
]

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',
]

ROOT_URLCONF = 'second.urls'

TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [os.path.join(BASE_DIR, 'templates')]
,
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]

WSGI_APPLICATION = 'second.wsgi.application'

# Database
# https://docs.djangoproject.com/en/1.11/ref/settings/#databases
DATABASES = {
#'default': {
# 'ENGINE': 'django.db.backends.sqlite3',
# 'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
#}
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'py_second',
'USER': 'root',
'PASSWORD': '',
'HOST': '127.0.0.1',
'port': '3306',
}
}

# Password validation
# https://docs.djangoproject.com/en/1.11/ref/settings/#auth-password-validators
AUTH_PASSWORD_VALIDATORS = [
{
'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
},
]

# Internationalization
# https://docs.djangoproject.com/en/1.11/topics/i18n/
LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True

# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.11/howto/static-files/
STATIC_URL = '/static/'

STATIC_PATH = os.path.join(BASE_DIR,'static')
STATICFILES_DIRS = (
STATIC_PATH,
)

TEMPLATE_PATH = os.path.join(BASE_DIR,'templates')
TEMPLATE_DIRS=[
TEMPLATE_PATH,
]

项目的urls.py中配置浏览器地址栏的路径和views.py中的函数名称对应起来：

from django.conf.urls import url
from django.contrib import admin
from jdango_Second.views import showInfo

urlpatterns = [
url(r'^admin/',admin.site.urls),
url(r'^index/',showInfo),
]

static路径下用于放置各种静态文件,如：
static

     img

          1.png

     js

     css

templates的路径为：

templates

      index.html

index.html:

<!DOCTYPE html>
{% load staticfiles %}
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>

<image src="{% static 'img/1.jpg' %}"/>
<ul>
{%for item in list%}
<li>
{{ item.id }}
{{ item.name }}
</li>
{% endfor %}
</ul>
</body>
</html>

三、创建 Django admin 用户名和密码：

初始化数据库表

manage.py@HelloDj > makemigrations

manage.py@HelloDj > migrate

2.3 创建admin
user

[b]manage.py@HelloDj >createsuperuser[/b]





输入用户。。密码。。
(参考：http://blog.csdn.net/wengyupeng/article/details/52266635)

四、打开浏览器输入localhost:8000/admin进入如下界面：



点击Stus,进入增添数据即可，然后在在地址栏输入localhost:8000/index就可以看到数据库中取出的数据了