首先在setting.py文件中编写数据库配置内容

DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'site',
'USER': 'user',
'PASSWORD': '',
'HOST': '127.0.0.1',
'PORT': '',
}
}

之后在app中models.py文件编写模型映射表

from django.db import models

# Create your models here.

class BlogModle2(models.Model):
title = models.CharField(max_length=50)  # 标题
content = models.TextField()        # 内容 def __str__(self):
return f'title={self.title}, content={self.content}'

通过pycham的控制台输入

makemigrations appname
migrate appname

创建数据库中的表

之后进行模版渲染,在app中views.py中编写index, add, list, detail, edit这五个函数

index

from django.shortcuts import render, redirect, reverse
from django.http import HttpResponse
from .models import BlogModle2
# Create your views here. def blog_index(request): # 主页函数
return render(request, 'blog/demo_index.html') # 渲染index页面
{% extends 'blog/demo_base.html' %}

{% block title %}
首页
{% endblock %} {% block bodyblock %}
<tr>
<td><a href="{% url 'blog_add' %}">添加文章</a></td>
<td><a href="{% url 'blog_list' %}">文章列表</a></td>
</tr>
{% endblock %}

add

def blog_add(request):                                  # 添加页面
if request.method == 'GET': # 如果请求为get请求
return render(request, 'blog/demo_add.html') # 渲染 add 页面
elif request.method == 'POST': # 如果请求为post页面
title = request.POST.get('title') # 获取form表单填写的标题
content = request.POST.get('content') # 获取form表单填写的内容
blog = BlogModle2(title=title, content=content) # 数据库写入
blog.save()
return render(request, 'blog/demo_add.html') # 渲染add页面
{% extends 'blog/demo_base.html' %}
{% block title %}
添加博客
{% endblock %}
{% block bodyblock %}
<h1>添加新文章</h1>
<form action="" method="POST">
{% csrf_token %} {# 防止跨域攻击与请求 #}
{# <form action="" method="GET"> {% csrf_token %}#}
标题<input type="text" autocomplete="off" id="title"
placeholder="请输入标题" name='title' value="{{ blog.title }}"> <br> <br><br>
内容 <textarea name="content" id="content"
placeholder="请输入内容" cols="30" rows="10">{{ blog.content }}</textarea>
<button type="submit">发布博客</button>
</form>
{% endblock %}

list

def blog_list(request):                                 # 列表页面
blog_list = BlogModle2.objects.all() # 获取数据库表中所有内容
return render(request, 'blog/demo_list.html', context={'blog_list': blog_list}) # 传递blog_list内容,渲染list页面
{% extends 'blog/demo_base.html' %}
{% block title %}
文章列表
{% endblock %} {% block bodyblock %}
<h1 style="margin-left: 100px">文章列表</h1>
<table width="400px">
<thead style="font-size:20px">
<tr>
<th>标题</th>
<th>操作</th>
</tr>
</thead>
<tbody>
{% for blog in blog_list %}
<tr>
<th><a href="{% url 'blog_detail' blog.id %}">{{ blog.title }}</a></th>
<th><a href="{% url 'blog_edit' blog.id %}">编辑</a> | <a href="{% url 'blog_delete' blog.id %}">删除 </a></th>
</tr>
{% endfor %}
</tbody>
</table> {% endblock %}

detail

def blog_detail(request, blog_id):                      # 详情页面
blog = BlogModle2.objects.get(id=blog_id) # 获取选中数据库表中标题那条数据
return render(request, 'blog/demo_detail.html', context={'blog': blog}) # 渲染detail页面
{% extends 'blog/demo_base.html' %}
{% block title %}
文章详情
{% endblock %}
{% block bodyblock %}
<h1>{{ blog.title }}</h1>
{{ blog.content }}
{% endblock %}

delete

def blog_delete(request, blog_id):                      # 删除功能
blog = BlogModle2.objects.get(id=blog_id) # 获取选中数据库表中标题那条数据
if blog: # 如果存在
blog.delete() # 删除
return redirect(reverse('blog_list')) # 返回列表页面
else:
return HttpResponse('不存在这条博客')

edit

def blog_edit(request, blog_id):                    # 编辑
blog = BlogModle2.objects.get(id=blog_id) # 获取选中数据库中数据
if request.method == 'GET': # 如果是GET请求
return render(request, 'blog/demo_add.html', context={'blog': blog}) # 渲染add页面,自动填入获取内容
elif request.method == 'POST': # 如果是post请求
blog.title = request.POST.get('title') # 标题修改
blog.content = request.POST.get('content') # 内容修改
blog.save()
return redirect(reverse('blog_list')) # 重定向到list页面

urls.py

from django.urls import path, re_path
from . import views urlpatterns = [
path('index/', views.blog_index, name='blog_index'),
path('add/', views.blog_add, name='blog_add'),
path('list/', views.blog_list, name='blog_list'),
path('detail/<blog_id>', views.blog_detail, name='blog_detail'),
path('delete/<blog_id>', views.blog_delete, name='blog_delete'),
path('edit/<blog_id>', views.blog_edit, name='blog_edit'),
]

base.html

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>{% block title %} {% endblock %}</title>
</head>
<body>
{% block bodyblock %} {% endblock %} </body>
</html>
05-28 23:53