一.关于中间建跨域

为了减少跨域代码冗余,采用中间件

from django.utils.deprecation import MiddlewareMixinclass CorsMiddleware(MiddlewareMixin):    def process_response(self,request,response):        # 复杂跨域        response["Access-Control-Allow-Headers"] = "*"        # 简单跨域        response["Access-Control-Allow-Origin"] = "*"        # put请求 需要的跨域        response["Access-Control-Allow-Methods"] = "*"        return response