django图书管理系统实例

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:0;
  padding:0;
}
.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 %}

django图书管理系统实例

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