Question

python中scrapy怎么发送一个post请求

Answer 1

参数:
url (string) – 请求的URL
callback (callable) – the function that will be called with the response of this request (once its downloaded) as its first parameter. For more information see Passing additional data to callback functions below. If a Request doesn’t specify a callback, the spider’s parse() method will be used. Note that if exceptions are raised during processing, errback is called instead.
method (string) – 此请求的HTTP方法。默认是 'GET'。
meta (dict) – Request.meta 属性的初始值。 一旦此参数被设置， 通过参数传递的字典将会被浅拷贝。
body (str or unicode) – request体。如果传进的参数是 unicode 类型，将会被编码为 str 类型。如果 body 参数没有给定，那么将会存储一个空的string类型，不管 这个参数是什么类型的，最终存储的都会是 str 类型(永远不会是 unicode 或是 None)。
headers (dict) – 请求头。字典值的类型可以是strings (for single valued headers) 或是 lists (for multi-valued headers)。如果传进的值是 None ，那么HTTP头将不会被发送。
cookies (dict or list) –
请求的cookies。可以被设置成如下两种形式。