如何在QWebEnginePage-pyqt5中使用POST方法打开URL,我还需要在每个请求中读取并发布cookie。
def __init__(self, url):
self.app = QApplication(sys.argv)
QWebEnginePage.__init__(self)
self.html = ''
self.loadFinished.connect(self._on_load_finished)
self.load(QUrl(url))
self.app.exec_()
def _on_load_finished(self):
self.html = self.toHtml(self.Callable)
def Callable(self, html_str):
self.html = html_str
self.app.quit()
最佳答案
除非使用 Javascript,否则无法使用 QWebEnginePage
发出 POST 请求。
这是如何使用 Qt 类执行此操作的示例(尚未测试,但应该可行)。
首先我们发出一个 get 请求来获取 cookie(您需要为此提供一个特定的 URL),然后我们存储目标地址的 cookie 并使用一些数据执行 post 请求:
from PyQt5.QtCore import pyqtSignal, QUrl, QUrlQuery
from PyQt5.QtNetwork import QNetworkAccessManager, QNetworkReply, QNetworkRequest,QNetworkCookieJar
class NetworkManager(QNetworkAccessManager):
requestFinished = pyqtSignal(QNetworkReply)
def __init__(self):
super().__init__()
def finished(self, reply):
super().finished(reply)
self.requestFinished.emit(reply)
class Request:
def __init__(self):
super().__init__()
self.network_manager = NetworkManager()
self.network_manager.requestFinished.connect(self.request_finished)
self.network_manager.setCookieJar(QNetworkCookieJar())
self.url = ''
self.cookie_url = ''
def _read_cookie(self):
request = QNetworkRequest(QUrl(self.cookie_url))
request.setHeader(QNetworkRequest.ContentTypeHeader, "application/x-www-form-urlencoded")
self.network_manager.get(request)
def _post(self):
post_data = QUrlQuery()
post_data.addQueryItem("param1", "value")
post_data.addQueryItem("param2", "value")
request = QNetworkRequest(QUrl(self.url))
request.setHeader(QNetworkRequest.ContentTypeHeader, "application/x-www-form-urlencoded")
self.network_manager.post(request, post_data.toString(QUrl.FullyEncoded).toUtf8())
def post_request(self, url, cookie_url):
self.url = url
self.cookie_url = cookie_url
self._read_cookie()
def request_finished(self, reply: QNetworkReply):
reply.deleteLater()
cookies = reply.header(QNetworkRequest.SetCookieHeader)
if cookies:
self.network_manager.cookieJar().setCookiesFromUrl(cookies, self.url)
self._post()
请注意,此实现不是线程安全的。
此外,在 Python 中还有更简单的方法,即使用请求:
How to send cookies in a post request with the Python Requests library?
关于python - 如何在QWebEnginePage-pyqt5中使用POST方法打开URL,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/54415536/