创建Django Web项目

Models 内容

# -*- coding: utf-8 -*-
from django.db import models

# Create your models here.
#DoubanModels  表示继承models
class DoubanModels(models.Model):
    #id = models.AutoField(primary_key=True)
    title = models.CharField(max_length=100,null=False)
    content = models.TextField(null=False)
    link = models.CharField(max_length=100, null= False

对应数据库表：

View视图中函数内容：

# print('Hello!!!!')
# 保存数据 需要后面的.SAVE 否则保存不到数据库
# DoubanModels(title='我是电影5', content='5', link='5').save()

# 取出当前表中所有数据 通过循环获取表中的记录
# for obj in DoubanModels.objects.all():
#    print(obj.title)

# 取单条记录中的某个字段的值
# print(DoubanModels.objects.get(id=3).title )

# 1.打开青态页面
# return HttpResponse(open('templates/movie.html').read())

# 2.以下一样的打开页面
#return HttpResponse(render(request, 'movie.html'))
# return HttpResponse('Hello jango')

def index(request):
    #批量往数据库中插入记录
    #for i in range(6,66):
    #    DoubanModels(title='我是电影'+str(i), content=str(i), link=str(i)).save()
    #return HttpResponse(render(request,'movie.html', context={'movies': DoubanModels.objects.all()}))
    #获取前15条记录 ---进行切片处理
    return HttpResponse(render(request, 'movie.html', context={'movies': DoubanModels.objects.all()[:15]}))
    #return HttpResponse('Hello jango')

#添加上默认的参数；分页
def page(request,page):
    #pass
    page = int(page)  # 转换为数字
    if page == 0:
        page =1
    return HttpResponse(render(request, 'movie.html', context={'movies': DoubanModels.objects.all()[(page-1)*15:page*15],'up': page-1,'down': page+1}))

模板页内容

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
   <H1>hello django---xibei</H1>
   <div>
       {% for i in movies %}
         <li> {{ i.title }}</li>

       {% endfor %}
</div>
   <div>
       <a href="/page/list_{{ up }}.html">上一页</a>
       <a href="/page/list_{{ down }}.html">下一页</a>
   </div>
</body>
</html>
显示结果：

URL内容

from django.contrib import admin
from django.urls import path
from django.conf.urls import url
from douban import views

urlpatterns = [
    #path('admin/', admin.site.urls),
    url(r'^admin/', admin.site.urls),
    url(r'^$', views.index),
    url(r'^page/list_(\d+).html$',views.page),   #list_(\d+).html  表示必须出现一个数字
]

创建Django Web项目

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