基于Python+Django重定向的例子
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Django源码, 这里HttpResponseRedirect和HttpResponsePermanentRedirect没有太大差别,前者是返回302临时重定向,后者返回301永久重定向
1 class HttpResponseRedirectBase(HttpResponse): 2 allowed_schemes = [‘http‘, ‘https‘, ‘ftp‘] 3 4 def __init__(self, redirect_to, *args, **kwargs): 5 super().__init__(*args, **kwargs) 6 self[‘Location‘] = iri_to_uri(redirect_to) 7 parsed = urlparse(str(redirect_to)) 8 if parsed.scheme and parsed.scheme not in self.allowed_schemes: 9 raise DisallowedRedirect("Unsafe redirect to URL with protocol ‘%s‘" % parsed.scheme) 10 11 url = property(lambda self: self[‘Location‘]) 12 13 def __repr__(self): 14 return ‘<%(cls)s status_code=%(status_code)d%(content_type)s, url="%(url)s">‘ % { 15 ‘cls‘: self.__class__.__name__, 16 ‘status_code‘: self.status_code, 17 ‘content_type‘: self._content_type_for_repr, 18 ‘url‘: self.url, 19 } 20 21 22 class HttpResponseRedirect(HttpResponseRedirectBase): 23 status_code = 302 24 25 26 class HttpResponsePermanentRedirect(HttpResponseRedirectBase): 27 status_code = 301 28 29 30 class HttpResponseNotModified(HttpResponse): 31 status_code = 304 32 33 def __init__(self, *args, **kwargs): 34 super().__init__(*args, **kwargs) 35 del self[‘content-type‘] 36 37 @HttpResponse.content.setter 38 def content(self, value): 39 if value: 40 raise AttributeError("You cannot set content to a 304 (Not Modified) response") 41 self._container = []
小栗子:
1 def redirectdemo(request): 2 dic_params = {‘username‘: request.GET.get(‘username‘), 3 ‘password‘: request.GET.get(‘password‘)} 4 if validate_parameters(dic_params): 5 return HttpResponsePermanentRedirect("http://www.baidu.com") 6 else: 7 return HttpResponse(‘<html>error page</html>‘)
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