1. Requtes

注意?method = 'GET'? ?headers = None? 為字典類型? ?cookies = None? 為字典類型

class Request(object_ref):def __init__(self, url, callback=None, method='GET', headers=None, body=None,cookies=None, meta=None, encoding='utf-8', priority=0,dont_filter=False, errback=None, flags=None):self._encoding = encoding # this one has to be set firstself.method = str(method).upper()self._set_url(url)self._set_body(body)assert isinstance(priority, int), "Request priority not an integer: %r" % priorityself.priority = priorityassert callback or not errback, "Cannot use errback without a callback"self.callback = callbackself.errback = errbackself.cookies = cookies or {} self.headers = Headers(headers or {}, encoding=encoding)self.dont_filter = dont_filterself._meta = dict(meta) if meta else Noneself.flags = [] if flags is None else list(flags)

2. FormRequest

注意: method = 'POST'? formdata 為字典類型

class FormRequest(Request):def __init__(self, *args, **kwargs):formdata = kwargs.pop('formdata', None)if formdata and kwargs.get('method') is None:kwargs['method'] = 'POST'super(FormRequest, self).__init__(*args, **kwargs) # 指的就是requestif formdata:items = formdata.items() if isinstance(formdata, dict) else formdataquerystr = _urlencode(items, self.encoding)if self.method == 'POST':self.headers.setdefault(b'Content-Type', b'application/x-www-form-urlencoded')self._set_body(querystr)else:self._set_url(self.url + ('&' if '?' in self.url else '?') + querystr)

?

轉載于:https://www.cnblogs.com/yugengde/p/8027524.html

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