Swift3中cookie相关

cookie的俩种获取方法：

即根据URLSession请求返回信息后，根据请求头中的Set-Cookie获取Cookie

//urlRequest。。。。

let task:URLSessionDataTask = URLSession.shared.dataTask(with: urlRequest, completionHandler: { (data, response, error) in

guard error == nil else {

resultBlock(nil, error)

print("读取数据 error ！",error ?? "")

return

}

//方法1：

let cookies = HTTPCookie.cookies(withResponseHeaderFields: (response as! HTTPURLResponse).allHeaderFields as! [String : String], for: uRL!)

//方法2：

let cookieString = (response as! HTTPURLResponse).allHeaderFields["Set-Cookie"]

HTTPCookieStorage.shared.setCookie(cookies)

let (object,convertError)  = T.convertFromData(data: data as NSData!)

resultBlock(object as? T,convertError)

})