【Django知识补充 - 1】：admin站点和rest_framework实现文件的上传和下载

项目准备

---

1. 创建一个项目和一个子应用
2. 创建一个apps文件夹存放子应用，并将apps设置为源根。
   

settings.py中的配置

1. 配置apps文件夹的路径
   

2. settings.py 中添加子应用
   

3. 注释MIDDLEWARE中的 ‘django.middleware.csrf.CsrfViewMiddleware’
   

4. 在settings.py中设置好数据库和media静态文件的设置
   
   

主路由urls.py的配置

子应用中的文件代码

---

_init_.py

from pymysql import install_as_MySQLdb


install_as_MySQLdb()

admin.py

from django.contrib import admin

# Register your models here.

from drfapp.models import SimdFiles


@admin.register(SimdFiles)
class SimdFiles_admin(admin.ModelAdmin):

	list_display = ['title', 'file', 'add_time']

models.py

from django.db import models
from datetime import datetime
# Create your models here.


class SimdFiles(models.Model):
    title = models.CharField(max_length=200, verbose_name='文件名称')
    file = models.FileField(upload_to='file_url', verbose_name='文件路径')
    add_time = models.DateTimeField(default=datetime.now(), verbose_name='文件添加时间')

    class Meta:
        db_table = 'SimdFiles'
        verbose_name = '上传文件'
        verbose_name_plural = verbose_name

serializers.py

from rest_framework import serializers
from drfapp.models import SimdFiles


class SimdFilesSerializer(serializers.ModelSerializer):
    class Meta:
        model = SimdFiles
        fields = ['title', 'file', 'add_time']

urls.py

from django.urls import re_path
from drfapp.views import SimdFielsViews


urlpatterns = [
    re_path(r'^file/$', SimdFielsViews.as_view({'get':'list'})),
]

views.py

from drfapp.models import SimdFiles
from drfapp.serializers import SimdFilesSerializer
from rest_framework import viewsets
from rest_framework.response import Response
class SimdFielsViews(viewsets.ModelViewSet):
    serializer_class = SimdFilesSerializer

    def get_queryset(self):
        return SimdFiles.objects.all()

演示

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在admin中上传文件

rest_framework中下载

• 重新输入路由路径
  
  回车后即可看到rest_framework界面

• 点击文件路由即可下载