响应模块 LL

1、作用

根据用户请求URL 或用户可接受的类型，筛选出合适的渲染组件。
用户请求URL：

http://127.0.0.1:8000/test/?format=json
http://127.0.0.1:8000/test.json

2、内置渲染器

显示json格式：JSONRenderer

访问URL：

http://127.0.0.1:8000/test/?format=json

http://127.0.0.1:8000/test.json

http://127.0.0.1:8000/test/

默认显示格式：BrowsableAPIRenderer（可以修改它的html文件）

访问URL：

http://127.0.0.1:8000/test/?format=api
http://127.0.0.1:8000/test.api
http://127.0.0.1:8000/test/

表格方式：AdminRenderer

访问URL：

http://127.0.0.1:8000/test/?format=admin
http://127.0.0.1:8000/test.admin
http://127.0.0.1:8000/test/

form表单方式：HTMLFormRenderer

访问URL：

http://127.0.0.1:8000/test/?format=form
http://127.0.0.1:8000/test.form
http://127.0.0.1:8000/test/

3、局部使用

from rest_framework.renderers import  HTMLFormRenderer,BrowsableAPIRenderer
class BookDetailView(APIView):
    renderer_classes = [HTMLFormRenderer,BrowsableAPIRenderer ]
    def get(self,request,pk):
        book_obj=models.Book.objects.filter(pk=pk).first()
        bs=BookSerializers(book_obj,many=False)
        return Response(bs.data)
    def put(self,request,pk):
        book_obj = models.Book.objects.filter(pk=pk).first()

        bs=BookSerializers(data=request.data,instance=book_obj)
        if bs.is_valid():
            bs.save() # update
            return Response(bs.data)
        else:
            return Response(bs.errors)
    def delete(self,request,pk):
        models.Book.objects.filter(pk=pk).delete()

        return Response("")

4、全局使用

4-1 settings.py中配置

REST_FRAMEWORK = {
    'DEFAULT_RENDERER_CLASSES': ['rest_framework.renderers.JSONRenderer']
}

5、自定义显示模块

from rest_framework.renderers import  TemplateHTMLRenderer
class BookDetailView(APIView):
    renderer_classes = [TemplateHTMLRenderer]
    def get(self,request,pk):
        book_obj=models.Book.objects.filter(pk=pk).first()
        bs=BookSerializers(book_obj,many=False)
        return Response(bs.data,template_name='aa.html')
<!DOCTYPE html>
<html lang="en">
<head>
    
    <title>Title</title>
</head>
<body>
{{ title }}
{{ publishDate }}
</body>
</html>