Python-web开发记录

今天药忘吃喽~ 2022-11-20 04:49 195阅读 0赞

# 1、安装 django #

sudo apt-get install python-django -y

# 2、创建文件夹 #

django-admin startproject mysite

# 3、运行 #

python manage.py runserver 127.0.0.1:8080

**注意：** 拿Pycharm专业版的软件可以直接创建Django程序，但是有可能会出现问题，可以使用上述的代码创建文件之后，再用Pycharm打开。

Django程序的目录结构：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfd2VpeGlhb3Rhbw_size_16_color_FFFFFF_t_70_pic_center]  
下面演示一个改urls的文件结构：

def login(request):
        return HttpResponse('login')
    
    urlpatterns = [
        # path('admin/', admin.site.urls),
        path('login/', login)
    ]

直接读取html文件并进行打开的操作，使用Django的操作函数：

from django.contrib import admin
    from django.urls import path
    from django.shortcuts import HttpResponse,render
    def login(request):
        return render(request,'my.html')
    
    urlpatterns = [
        path('admin/', admin.site.urls),
        path('login/', login)
    ]

需要修改Django找的目录，这里是默认寻找目录。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfd2VpeGlhb3Rhbw_size_16_color_FFFFFF_t_70_pic_center 1]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfd2VpeGlhb3Rhbw_size_16_color_FFFFFF_t_70_pic_center 2]

"""mysite URL Configuration
    
    The `urlpatterns` list routes URLs to views. For more information please see:
        https://docs.djangoproject.com/en/3.1/topics/http/urls/
    Examples:
    Function views
        1. Add an import:  from my_app import views
        2. Add a URL to urlpatterns:  path('', views.home, name='home')
    Class-based views
        1. Add an import:  from other_app.views import Home
        2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
    Including another URLconf
        1. Import the include() function: from django.urls import include, path
        2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
    """
    from django.contrib import admin
    from django.urls import path
    from django.shortcuts import HttpResponse,render,redirect
    def login(request):
        if request.method == 'GET':
            return render(request,'my.html')
        else:
            u = request.POST.get('username')
            p = request.POST.get('password')
            # print(u)
            # print(p)
            if u == 'root' and p == '123':
                return redirect("/index")
            else :
                return render(request,'my.html',{ 'msg':"用户名密码错误"})
    def index(request):
        return HttpResponse("index")
    
    urlpatterns = [
        path('admin/', admin.site.urls),
        path('login/', login),
        path('index/', index)
    ]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfd2VpeGlhb3Rhbw_size_16_color_FFFFFF_t_70_pic_center]: /images/20221120/e5c150a639ee401da62172e8600a6554.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfd2VpeGlhb3Rhbw_size_16_color_FFFFFF_t_70_pic_center 1]: /images/20221120/f77f5897778248679085165cae1c2a3f.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfd2VpeGlhb3Rhbw_size_16_color_FFFFFF_t_70_pic_center 2]: /images/20221120/869db6adec024d70b0f1c50000684799.png