<p>twisted文档提供了一个如何做到这一点的示例。在</p>
<p>来自<a href="http://twistedmatrix.com/documents/current/web/howto/client.html" rel="nofollow">http://twistedmatrix.com/documents/current/web/howto/client.html</a></p>
<pre><code>from pprint import pformat
from twisted.internet import reactor
from twisted.internet.defer import Deferred
from twisted.internet.protocol import Protocol
from twisted.web.client import Agent
from twisted.web.http_headers import Headers
class BeginningPrinter(Protocol):
def __init__(self, finished):
self.finished = finished
self.remaining = 1024 * 10
def dataReceived(self, bytes):
if self.remaining:
display = bytes[:self.remaining]
print 'Some data received:'
print display
self.remaining -= len(display)
def connectionLost(self, reason):
print 'Finished receiving body:', reason.getErrorMessage()
self.finished.callback(None)
agent = Agent(reactor)
d = agent.request(
'GET',
'http://example.com/',
Headers({'User-Agent': ['Twisted Web Client Example']}),
None)
def cbRequest(response):
print 'Response version:', response.version
print 'Response code:', response.code
print 'Response phrase:', response.phrase
print 'Response headers:'
print pformat(list(response.headers.getAllRawHeaders()))
finished = Deferred()
response.deliverBody(BeginningPrinter(finished))
return finished
d.addCallback(cbRequest)
def cbShutdown(ignored):
reactor.stop()
d.addBoth(cbShutdown)
reactor.run()
</code></pre>
<p>请求完成后,将调用BeginningPrinter的connectionLost()方法。在</p>
^{pr2}$
<p>看起来,检查<code>if reason.check(twisted.web.client.ResponseDone)</code>将告诉您它是否成功。在</p>