摘要：前言對于前后端分離大家可能在網上可以找到很多的文章。但是，我們今天分享的文章的英文我們的老師對于前后端的分離問題的多年工作經驗的總結。今天，我們把這些經驗總結知識點分享給大家，希望可以幫助到大家。添加開啟黑白名單，任選其一。

對于前后端分離大家可能在網上可以找到很多的文章。但是，我們今天分享的文章的英文我們的老師對于前后端的分離問題的多年工作經驗的總結。今天，我們把這些經驗總結知識點分享給大家，希望可以幫助到大家。

接口格式

增，刪，改，查及分頁

跨域

ACL訪問控制

令牌認證

路由格式：

/ API / <模塊> /

示例：

/ API /資產/

/ API / DNS /

/ API /監視器/

返回格式：

0表示請求成功，非0表示請求異常

{u"message": u"ERROR_PROXY_AUTH_FAILED", u"code": -97}
{u"message": u"SUCCESS", u"code": 0}

增，刪，改，查及分頁

采用django-rest-framework框架提供后端接口服務;

示例：

# -*- coding: UTF-8 -*-

class StandardResultsSetPagination(pagination.PageNumberPagination):
    # 覆蓋 settings 中的默認分頁
    page_size = 10
    # page_size_query_param = "page"

    # 限制最大分頁大小
    max_page_size = 10

class BaseManageView(generics.ListAPIView):
    serializer_class = TbRecordsSerializer
    model = TbRecords
    queryset = TbRecords.objects.all()
    pagination_class = StandardResultsSetPagination

    parser_classes = (JSONParser,)

    def get_object(self, pk):
        try:
            return TbRecords.objects.get(pk=pk)
        except TbRecords.DoesNotExist:
            raise Http404

    def get(self, request, *args, **kwargs):
        # 分頁
        return super(DnsManageView, self).get(request, *args, **kwargs)

    def get_queryset(self):
        # 條件搜索
        queryset = super(DnsManageView, self).get_queryset()
        queryset = self.get_queryset_search(queryset)
        return queryset

    def get_queryset_search(self, queryset):
        queryset = queryset.objects.filter(update_time=F("update_time") + 8)
        return queryset

    def post(self, request):
        # 添加
        data = self._parseRequest(request.body)

        pass

        return apiSucess("SUCCESS", 200)

    def put(self, request):
        # 修改
        data = self._parseRequest(request.body)

        pass

        return apiSucess("SUCCESS", 200)

    def delete(self, request, pk):
        # 刪除
        obj = self.get_object(pk)
        obj.delete()
        return apiSucess("SUCCESS", 204)

    def options(self, request):
        # 非分頁
        data = TbRecords.objects.values()
        return apiSucess(data, 200)

    def _parseRequest(self, querydict_obj):
        # 解析已提交的數據
        params = QueryDict(querydict_obj).dict()
        if isinstance(params, dict):
            if len(params) == 1:
                data = json.loads(params.keys()[0])
            else:
                data = params
        elif isinstance(params, list):
            pass
        else:
            pass

        return data

1，通過NGINX的方式

通過在NGINX代理添加標題的方式

server {
    add_header Access-Control-Allow-Origin *;  
    add_header Access-Control-Allow-Headers X-Requested-With;  
    add_header Access-Control-Allow-Methods GET,POST,OPTIONS;    
}

2，通過后端服務方式

修改project_name / settings.py文件。

（1）添加。

INSTALLED_APPS添加corsheaders

（2）開啟黑白名單，任選其一。

CORS_ORIGIN_ALLOW_ALL = True
CORS_ORIGIN_WHITELIST = (
     "*",
     "localhost:8000",
     "127.0.0.1:9000",
)

針對主機的權限控制

示例：

# -*- coding: UTF-8 -*-

import functools
from rest_framework import status
from rest_framework.response import Response

# 允許的白名單IP地址
ALLECT_ADDR_POOL = (
                   "127.0.0.1", 
                   ) 

def AclHost(func):
    def wrapper(request, *args, **kwargs):
        username = request.request.user
        method = request.request.method
        if request.request.META.has_key("HTTP_X_FORWARDED_FOR"):
            remote_addr = request.request.META["HTTP_X_FORWARDED_FOR"]  
        else:
            remote_addr = request.request.META["REMOTE_ADDR"]

    # 有多層代理
        if remote_addr.count(",") >=1:
            remote_addr = remote_addr.split(",")[-1].strip()
        if remote_addr not in ALLECT_ADDR_POOL:
            data = {"result" : {"username" : username, "method" : method, "remote_addr" : remote_addr}, "errmsg" : "FORBIDDEN"}
            return Response(data, status=status.HTTP_403_FORBIDDEN) 
        return func(request, *args, **kwargs)
    return functools.wraps(func)(wrapper)

針對Token的權限控制

創建用戶自動生成Token，基于Token的路由的訪問。

示例：

（1）djuser / models.py

# -*- coding: UTF-8 -*-
from django.conf import settings
from django.db.models.signals import post_save
from django.dispatch import receiver
from rest_framework.authtoken.models import Token
from django.contrib.auth.models import User

# 針對新創建的用戶生成token
@receiver(post_save, sender=User)
def create_auth_token(sender, instance=None, created=False, **kwargs):
    if created:
        Token.objects.create(user=instance)

（2）djuser / views.py

from rest_framework.authentication import SessionAuthentication, BasicAuthentication, TokenAuthentication 
from rest_framework.permissions import IsAuthenticated
from rest_framework.response import Response
from rest_framework.views import APIView

class UserManager(APIView):

    # Token驗證
    authentication_classes = (SessionAuthentication, TokenAuthentication)
    permission_classes = (IsAuthenticated,)

    def get(self, request, format=None):
        content = {
            "user": unicode(request.user),  # `django.contrib.auth.User` instance.
            "auth": unicode(request.auth),  # None
        }
        return Response(content)

原文鏈接