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  • cors中间件

    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"
    
            return response

    在settings.py文件中添加中间件

    前后端分离开发

     或导入

    from django.utils.deprecation import MiddlewareMixin

    查找MiddlewareMixin方法:1 .在setting.py文件中,随便找一个中间件

                  2.查看父类

                  3.查看父类所在.py文件的导入模块

    优化

    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'] = "*"
            
            if request.method == "OPTIONS":
                # 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
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  • 原文地址:https://www.cnblogs.com/wt7018/p/11531343.html
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