drf 跨域问题 中间件

配置请求头

全局配置

setting.py增加中间件

'api.cors.CORSMiddleware',

文件cors.py

class MiddlewareMixin(object):
    def __init__(self, get_response=None):
        self.get_response = get_response
        super(MiddlewareMixin, self).__init__()

    def __call__(self, request):
        response = None
        if hasattr(self, 'process_request'):
            response = self.process_request(request)
        if not response:
            response = self.get_response(request)
        if hasattr(self, 'process_response'):
            response = self.process_response(request, response)
        return response

class 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"
        response['Access-Control-Allow-Origin'] = "*"

        if request.method == "OPTIONS":
            response['Access-Control-Allow-Headers'] = "Content-Type"
            response['Access-Control-Allow-Methods'] = "PUT,DELETE"

        return response