首页，其他页面全部继承首页的上半部分
点击发布图书页面
首页点击书名，跳转到图书信息界面，该界面可删除图书
项目结构
#views.py
from django.shortcuts import render,redirect,reverse
from django.db import connection
def get_cursor():
return connection.cursor() def index(request): #首页
cursor=get_cursor()
cursor.execute("select * from book")
books=cursor.fetchall()
return render(request,'index.html',context={"books":books}) def add_book(request):#发布图书
if request.method == 'GET':
return render(request,'add_book.html')
else:
name = request.POST.get('name')
author = request.POST.get('author')
cursor=get_cursor()
cursor.execute("insert into book values(null,'%s','%s')"%(name,author))
return redirect(reverse('index'))#发布图书完成后跳转到首页 def book_detail(request,book_id):
cursor=get_cursor()
cursor.execute("select * from book where id=%s"%book_id)
book=cursor.fetchone()
return render(request,'book_detail.html',context={"book":book}) def delete_book(request):#删除图书
if request.method=='POST':
book_id=request.POST.get('book_id')
cursor=get_cursor()
cursor.execute("delete from book where id=%s"%book_id)
return redirect(reverse('index'))#删除图书后跳转到首页
else:
raise RuntimeError("删除图书的method错误!")
urls.pyfrom front import views
urlpatterns = [
path('', views.index,name='index'),
path('add_book/',views.add_book,name='add_book'),
path('book_detail/<int:book_id>',views.book_detail,name='book_detail'),
path('delete_book',views.delete_book,name='delete_book')
]
项目静态文件index.css
*{margin:;
padding:;
}
.nav {
background: #3a3a3a;
height: 65px;
overflow: hidden
}
.nav li{
float:left;
list-style: none;
margin: 0 20px;
line-height: 65px;
}
.nav li a{
color: #fff;
text-decoration: none
}
模板html，其他模板均继承这个模板
{% load static %}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>首页</title>
<link rel="stylesheet" href="{% static 'base.css' %}">
</head>
<body>
<nav>
<ul class="nav">
<li><a href="/">首页</a></li>
<li><a href="{% url 'add_book' %}">发布图书</a></li>
</ul>
</nav>
{% block content %}
{% endblock %}
</body>
</html>
首页模板
{% extends 'base.html' %}
{% block content %}
<table>
<thead>
<tr>
<th>序号</th>
<th>书名</th>
<th>作者</th>
</tr>
</thead>
<tbody>
{% for book in books %}
<tr>
<td>{{ forloop.counter }}</td>
<td><a href="{% url 'book_detail' book_id=book.0 %}">{{ book.1 }}</a></td>
<td>{{ book.2 }}</td>
</tr>
{% endfor %}
</tbody>
</table>
{% endblock %}
发布图书模板
{% extends 'base.html' %}
{% block content %}
<form action="" method="post">
<table>
<tbody>
<tr>
<td>书名：</td>
<td><input type="text" name='name'></td>
</tr>
<tr>
<td>作者：</td>
<td><input type="text" name='author'></td>
</tr>
<tr>
<td></td>
<td><input type="submit" value='提交'></td>
</tr>
</tbody>
</table>
</form>
{% endblock %}
图书详情模板，该模板可删除图书
{% extends 'base.html' %}
{% block content %}
<p>书名：{{ book.1 }}</p>
<p>作者：{{ book.2 }}</p>
<form action="{% url 'delete_book' %}" method="post">
<input type="hidden" name="book_id" value="{{ book.0 }}">
<input type="submit" value="删除图书">
</form>
{% endblock %}