问 题
在python中，如何获取短链对应最终网址，现在有很多淘宝短链，我需要获取短链跳到的最终网址，这个有什么好办法吗？有的是302 有的是直接在网页用js进行跳转，，这些如何获取
解决方案
用selenium+phantonjs...
#!/usr/bin/python2.7
from twisted.internet import reactor
from twisted.internet.defer import Deferred, DeferredList, DeferredLock
from twisted.internet.defer import inlineCallbacks
from twisted.web.client import Agent, HTTPConnectionPool
from twisted.web.http_headers import Headers
from pprint import pprint
from collections import defaultdict
from urlparse import urlparse
from random import randrange
import fileinput
pool = HTTPConnectionPool(reactor)
pool.maxPersistentPerHost = 16
agent = Agent(reactor, pool)
locks = defaultdict(DeferredLock)
locations = {}
def getLock(url, simultaneous = 1):
return locks[urlparse(url).netloc, randrange(simultaneous)]
@inlineCallbacks
def getMapping(url):
# Limit ourselves to 4 simultaneous connections per host
# Tweak this as desired, but make sure that it no larger than
# pool.maxPersistentPerHost
lock = getLock(url,4)
yield lock.acquire()
try:
resp = yield agent.request('HEAD', url)
locations[url] = resp.headers.getRawHeaders('location',[None])[0]
except Exception as e:
locations[url] = str(e)
finally:
lock.release()
而且可以试试pip包
from urlunshort import resolve
resolve("http://bit.ly/qlKaI") 结果 'http://bitbucket.org/runeh/urlunshort/'
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