项目级-使用Django做api踩过的坑...

第一步

# 安装 'django_filters','rest_framework',
pip3 install django_filters
pip3 install rest_framework

rest_framework与django_filters使用不在赘述，请参照Django REST Framework教程:快速入门 Rest-framework快速实现增删改查及筛选

第二步

在setting中配置INSTALLED_APPS 切记

setting加入配置

REST_FRAMEWORK = {
    'DEFAULT_PERMISSION_CLASSES':[
        'rest_framework.permissions.DjangoModelPermissionsOrAnonReadOnly'
    ],
    'DEFAULT_PAGINATION_CLASS':'rest_framework.pagination.PageNumberPagination',
    # 'PAGE_SIZE':3  （可先注释，加页码会用到）
}

第三步

在应用目录下创建 query_filter.py 与 serializers.py文件

# Author:jum
# -*- coding: utf-8 -*-
# @Time : 2020-03-10 9:20
# @File : query_filter.py
# @Software: PyCharm
"""筛选条件"""
# fields中为可筛选字段
# 切记图片字段不可加入筛选字段

from django_filters import rest_framework as filters
from apps.user_blog.models import *


class BussFilter(filters.FilterSet):
    class Meta:
        model = Buss
        fields = ['id', 'name']


class GoodsFilter(filters.FilterSet):
    class Meta:
        model = Goods
        fields = ['id', 'buss_cate',]

# Author:jum
# -*- coding: utf-8 -*-
# @Time : 2020-03-09 14:22
# @File : serializers.py
# @Software: PyCharm
# 用于返回json数据
# fields 中设置你将展示的字段
from rest_framework import serializers
from apps.user_blog.models import *



class StudentSerializers(serializers.ModelSerializer):
    class Meta:
        model = User  # 指定的模型类
        fields = ('name', 'job_num')  # 需要序列化的属性


class BussSerializers(serializers.ModelSerializer):
    class Meta:
        model = Buss  # 指定的模型类
        fields = ('id', 'name', 'pwd', 'weight', 'create_time', 'update_time')  # 需要序列化的属性


class GoodsSerializers(serializers.ModelSerializer):
    class Meta:
        model = Goods  # 指定的模型类
        fields = ('id', 'buss_cate', 'name', 'tp', 'price', 'buys_count', 'weight', 'create_time')

第四步：

配置url,填充view

#view.py

from django.shortcuts import render
from rest_framework import viewsets
from apps.user_blog.models import *
from .serializers import StudentSerializers, BussSerializers,GoodsSerializers
from .query_filter import BussFilter,GoodsFilter
from django_filters import rest_framework as filters


# Create your views here.


class StudentViewSet(viewsets.ModelViewSet):
    # 指定结果集并设置排序
    # queryset 为查询集,可自定义
    queryset = User.objects.all()
    # 指定序列化的类
    serializer_class = StudentSerializers


class BussViewSet(viewsets.ModelViewSet):
    # 指定结果集并设置排序
    # queryset 为查询集,可自定义
    queryset = Buss.objects.all()  # 查询出所有商家
    # 指定序列化的类
    serializer_class = BussSerializers
    #加入筛选字段
    filter_backends = (filters.DjangoFilterBackend,)
    filter_class = BussFilter


class GoodsViewSet(viewsets.ModelViewSet):
    # 指定结果集并设置排序
    # queryset 为查询集,可自定义
    queryset = GoodsSerializers.objects.all()  # 查询出所有商家
    # 指定序列化的类
    serializer_class = GoodsSerializers
    filter_backends = (filters.DjangoFilterBackend,)
    filter_class = GoodsFilter
# Create your views here.

#url.py

from django.conf.urls import include, url
from rest_framework import routers
from . import views


# 定义路由地址
route = routers.DefaultRouter()

# 注册新的路由地址
route.register(r'user', views.StudentViewSet)
route.register(r'buss', views.BussViewSet)
route.register(r'goods', views.GoodsViewSet)

# 注册上一级的路由地址并添加
urlpatterns = [
    url(r'^', include(route.urls)),
]

最后，如过项目发布后没有静态文件以Nginx为例

为rest_framework添加静态文件指向

location /static/rest_framework/ {        alias /usr/local/lib/python3.5/distpackages/rest_framework/static/rest_framework/;}

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