zoukankan      html  css  js  c++  java
  • restframework 的一些操作


    路飞学城项目:

    1 Vue

    2 restframework框架(一周)

    3 学城项目(一周-两周)

    day98


    1 CBV(class based view) 与 FBV(function based view)
    class LoginView(View):

    def get(self,request):

    return render(request,"login.html")

    def post(self,request):
    user=request.POST.get("user")
    pwd=request.POST.get("pwd")

    if 1:
    return HttpResponse("OK")

    url(r'^index/', views.index) # 用户一旦访问:index(request)

    # url(r'^login/', views.LoginView.as_view()),
    # url(r'^login/', View.as_view()),
    # url(r'^login/', View.view),

    # 用户一旦访问get请求login-----》

    view(request):
    return self.dispatch(request, *args, **kwargs)

    dispatch(self, request, *args, **kwargs):

    if request.method.lower() in self.http_method_names:
    handler = getattr(self, request.method.lower())

    return handler(request, *args, **kwargs)


    RESTful:(面向资源架构(ROA:Resource Oriented Architecture))

    1 一切皆资源
    books books
    book/add/ addbook
    book/1/change changebook
    book/1/delete changebook

    restful:
    get 查看
    books ------------>
    post 添加

    get 查看
    book/1/-------------
    delete 删除
    put 更新

    2
    GET :从服务器取出资源(一项或多项)
    POST :在服务器新建一个资源
    PUT :在服务器更新资源(客户端提供改变后的完整资源)
    PATCH :在服务器更新资源(客户端提供改变的属性)
    DELETE :从服务器删除资源


    restframework框架:

    (1) APIView (******)
    class PublishView(APIView):

    def get(self,request):
    publish_list=Publish.objects.all()
    ret=serialize("json",publish_list)

    return HttpResponse(ret)

    def post(self,request):
    pass
    #url(r'^publishes/', views.PublishView.as_view()),
    #url(r'^publishes/', APIView.as_view()),
    #url(r'^publishes/', View.view),

    用户一旦访问get请求

    View.view(request):
    return self.dispatch(request, *args, **kwargs)
    ---- APIView.dispatch(request, *args, **kwargs):
    源码

    if request.method.lower() in self.http_method_names:
    handler = getattr(self, request.method.lower())

    response = handler(request, *args, **kwargs)
    return response

    (2) 序列化组件 (******)
    将queryset序列化成json

    Django序列化组件:
    publish_list=Publish.objects.all()
    ret=serialize("json",publish_list)

    restframework的序列化组件

    [obj1,obj2,...]--------> [{},{},{}]
    obj--------------------> {}


    # 自定义序列化组件
    class BookSerializers(serializers.Serializer):
    title=serializers.CharField()
    price=serializers.CharField()
    publishDate=serializers.DateField()

    # 针对一对多
    publish=serializers.CharField(source="publish.name")
    publish_email=serializers.CharField(source="publish.email")
    # 针对多对多
    authors=serializers.SerializerMethodField()
    def get_authors(self,obj):
    data=[]
    for i in obj.authors.all():
    temp=[]
    temp.append(i.pk)
    temp.append(i.name)
    data.append(temp)
    return data
    # ModelSerializer序列化组件
    class BookSerializers(serializers.ModelSerializer):
    class Meta:
    model=Book
    fields="__all__"

    publish = serializers.CharField(source="publish.name")
    authors=serializers.SerializerMethodField()
    def get_authors(self,obj):
    data=[]
    for i in obj.authors.all():
    temp=[]
    temp.append(i.pk)
    temp.append(i.name)
    data.append(temp)
    return data



    1

    "books" GET:获取所有数据
    POST:添加一条数据

    "book/1" GET:获取单条数据
    DELETE:删除一条数据
    PUT/PATCH:更新一条数据


    2 功能之序列化:
    book_list = Book.objects.all()
    ps = BookSerializers(book_list, many=True)
    ps.data

    book_obj=Book.objects.filter(pk=pk).first()
    bs=BookSerializers(book_obj,many=False)

    3 校验字段与操作记录(ModelSerializer拥有)
    # 添加数据
    bs=BookSerializers(data=request.data)
    if bs.is_valid(): #校验字段接口
    bs.save() # 生成记录接口
    return Response(bs.data) # 序列化接口


    # 更新数据
    bs=BookSerializers(data=request.data,instance=book_obj)
    if bs.is_valid(): #校验字段接口
    bs.save() #更新记录接口
    return Response(bs.data) # 序列化接口

    (3) 视图组件 (******)
    (4) 解析器
    (5) 认证组件
    (6) 权限组件
    (7) 频率组件
    (8) 分页器
    (9) 响应器
    (10) url控制器
    (11) 版本控制

  • 相关阅读:
    删除链表的倒数第N个节点(java实现)
    Java多线程之volatile关键字《一》
    Utils
    分布式和集群
    java RMIC
    Log4j输出终端(Appender)详解
    使用存储过程并返回值与及返回值的获得方法
    groupBy
    group by java实现
    本机Font字体
  • 原文地址:https://www.cnblogs.com/zhaoweihang/p/9403702.html
Copyright © 2011-2022 走看看