cors(跨域资源共享):

　　本质设置响应头

 定制中间件 cors.py 后在settings.py中间件中配置

from django.utils.deprecation import MiddlewareMixinclass CORSMiddleware(MiddlewareMixin):    def process_response(self,request,response):        # 添加响应头        # 允许你的域名来获取我的数据        response['Access-Control-Allow-Origin'] = "*"        # 允许你携带Content-Type请求头        response['Access-Control-Allow-Headers'] = "Content-Type"        # 允许你发送DELETE,PUT        response['Access-Control-Allow-Methods'] = "DELETE,PUT"        return response

from django.utils.deprecation import MiddlewareMixinclass CorsMiddleWare(MiddlewareMixin):    def process_response(self, request, response):        if request.method == 'OPTIONS':            response['Access-Control-Allow-Headers'] = 'Content-Type'            response['Access-Control-Allow-Method'] = 'POST,PUT,DELETE'        response['Access-Control-Allow-Origin'] = '*'        return response

 https://www.cnblogs.com/liuqingzheng/articles/9794285.html?tdsourcetag=s_pcqq_aiomsg