我正在尝试使用QNetworkAccessManager访问网络请求网址
从此示例 Threading with webkit ，我已将 NetWorkAccessManager 附加到现有代码，但该页面根本不加载我的代码。
import sys
from collections import deque # threadsafe datatype
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4.QtWebKit import *
from PyQt4.QtNetwork import *
NUM_THREADS = 2 # how many threads to use
class Render(QWebView):
active = deque() # track how many threads are still active
data = {} # store the data
def __init__(self, urls):
QWebView.__init__(self)
# I have Added the following code
manager = Manager()
page = self.page()
page.setNetworkAccessManager(manager)
self.loadFinished.connect(self._loadFinished)
self.urls = urls
self.crawl()
def crawl(self):
try:
url = self.urls.pop()
print 'downloading', url
Render.active.append(1)
self.load(QUrl(url))
except IndexError:
# no more urls to process
if not Render.active:
# no more threads downloading
print 'finished'
self.close()
def _loadFinished(self, result):
# process the downloaded html
frame = self.page().mainFrame()
url = str(frame.url().toString())
Render.data[url] = frame.toHtml()
Render.active.popleft()
self.crawl() # crawl next URL in the list
# I have Added the following class
class Manager(QNetworkAccessManager):
def __init__(self):
print 'entered network manager'
QNetworkAccessManager.__init__(self)
self.finished.connect(self._finished)
def _finished(self, reply):
print 'finished network req event'
url = reply.url().toString()
print url.toUtf8()
app = QApplication(sys.argv) # can only instantiate this once so must move outside class
urls = deque(['http://www.google.com/', 'http://stackoverflow.com/'])
renders = [Render(urls) for i in range(NUM_THREADS)]
app.exec_() # will execute qt loop until class calls close event
我在这里做错了什么？
最佳答案
只需在设置page.setNetworkAccessManager(manager)之前添加self.setPage(page)
关于Python QWebView : Accessing Network Resources，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35152118/