Qt和Web服务器应用程序OSError: [WinError 10038]试图对非套接字的东西进行操作

Question

我正在创建一个pyqt应用程序，它将启动一个web服务器，并通过QWebEngineView查看它。

它使用http。创建web服务器的服务器

它还使用多线程来创建服务器。

这是我的应用程序代码。

import sys
import threading
from PyQt5.QtWidgets import QApplication, QVBoxLayout, QWidget
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import QUrl
from PyQt5.QtWebEngineWidgets import QWebEngineView
from http.server import BaseHTTPRequestHandler, HTTPServer
import threading

class Window(QWidget):
def __init__(self):
QWidget.__init__(self)
self.setWindowTitle("Medicine")
self.setWindowIcon(QIcon("icon.png"))
layout = QVBoxLayout()
self.setLayout(layout)
web = WebPage()
layout.addWidget(web)
class WebPage(QWebEngineView):
def __init__(self):
QWebEngineView.__init__(self)
self.load(QUrl("http://127.0.0.1:8000"))

app = QApplication(sys.argv)

class Handler(BaseHTTPRequestHandler):
def do_GET(self):
self.send_response(200)
self.send_header('Content-type','text/html')
self.end_headers()
message = "Hello, World!"
self.wfile.write(bytes(message, "utf8"))
with HTTPServer(('', 8000), Handler) as server:
t = threading.Thread(target=server.serve_forever)
t.start()

def startapp():
screen = Window()
screen.show()
sys.exit(app.exec_())
startapp()

但是输出错误:

Exception in thread Thread-1:
Traceback (most recent call last):
File "C:UsersUserAppDataLocalProgramsPythonPython39libthreading.py", line 954, in _bootstrap_inner
self.run()
File "C:UsersUserAppDataLocalProgramsPythonPython39libthreading.py", line 892, in run
self._target(*self._args, **self._kwargs)
File "C:UsersUserAppDataLocalProgramsPythonPython39libsocketserver.py", line 232, in serve_forever
ready = selector.select(poll_interval)
File "C:UsersUserAppDataLocalProgramsPythonPython39libselectors.py", line 324, in select
r, w, _ = self._select(self._readers, self._writers, [], timeout)
File "C:UsersUserAppDataLocalProgramsPythonPython39libselectors.py", line 315, in _select
r, w, x = select.select(r, w, w, timeout)
OSError: [WinError 10038] An operation was attempted on something that is not a socket

Answer 1

问题是您正在启动连接并立即关闭它。逻辑是在事件循环运行时保持它打开:

import sys
import threading
from PyQt5.QtCore import QUrl
from PyQt5.QtGui import QIcon
from PyQt5.QtWidgets import QApplication, QVBoxLayout, QWidget
from PyQt5.QtWebEngineWidgets import QWebEngineView
from http.server import BaseHTTPRequestHandler, HTTPServer

class Window(QWidget):
def __init__(self):
QWidget.__init__(self)
self.setWindowTitle("Medicine")
self.setWindowIcon(QIcon("icon.png"))
layout = QVBoxLayout(self)
web = WebPage()
layout.addWidget(web)

class WebPage(QWebEngineView):
def __init__(self):
QWebEngineView.__init__(self)
self.load(QUrl("http://127.0.0.1:8000"))

class Handler(BaseHTTPRequestHandler):
def do_GET(self):
self.send_response(200)
self.send_header("Content-type", "text/html")
self.end_headers()
message = "Hello, World!"
self.wfile.write(bytes(message, "utf8"))

def startapp():
ret = 0
app = QApplication(sys.argv)
with HTTPServer(("", 8000), Handler) as server:
t = threading.Thread(target=server.serve_forever, daemon=True)
t.start()
screen = Window()
screen.show()
ret = app.exec_()
sys.exit(ret)

startapp()