如何在QWebEnginePage-pyqt5中使用POST方法打开URL

from PyQt5.QtCore import QUrl, QUrlQuery
from PyQt5.QtNetwork import QNetworkRequest, QNetworkAccessManager
from PyQt5.QtWebEngineWidgets import QWebEngineView

view = QWebEngineView()

manager = QNetworkAccessManager()

def handle_response(response):
    if response.error() == QNetworkReply.NoError:
        # 处理成功的响应
        content = response.readAll()
        # 在这里可以对返回的内容进行处理
    else:
        # 处理错误的响应
        error_code = response.error()
        error_message = response.errorString()
        # 在这里可以处理错误信息

def send_post_request(url, data):
    request = QNetworkRequest(QUrl(url))
    request.setHeader(QNetworkRequest.ContentTypeHeader, "application/x-www-form-urlencoded")

    query = QUrlQuery()
    for key, value in data.items():
        query.addQueryItem(key, value)

    data_bytes = query.toString().encode()

    reply = manager.post(request, data_bytes)
    reply.finished.connect(lambda: handle_response(reply))

url = "https://example.com"
data = {
    "param1": "value1",
    "param2": "value2"
}
send_post_request(url, data)