第一種方式：安裝第三方庫，pycurl：

import pycurl

import StringIO

import urllib

def PostData(query):

url = "http://test.xinghaixu.com/query"

params = [{'test1':'test1','test2':'test2']

post_data_dic ={"method":"CommonQueryService", "params":params}

crl = pycurl.Curl()

crl.setopt(pycurl.VERBOSE,1)

crl.setopt(pycurl.FOLLOWLOCATION, 1)

crl.setopt(pycurl.MAXREDIRS, 5)

#crl.setopt(pycurl.AUTOREFERER,1)

crl.setopt(pycurl.USERAGENT, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322)")

crl.setopt(pycurl.CONNECTTIMEOUT, 60)

crl.setopt(pycurl.TIMEOUT, 300)

#crl.setopt(pycurl.PROXY,proxy)

crl.setopt(pycurl.HTTPPROXYTUNNEL,1)

#crl.setopt(pycurl.NOSIGNAL, 1)

crl.fp = StringIO.StringIO()

# Option -d/--data HTTP POST data

crl.setopt(crl.POSTFIELDS, json.dumps(post_data_dic, ensure_ascii=False))

crl.setopt(pycurl.URL, url)

crl.setopt(crl.WRITEFUNCTION, crl.fp.write)

crl.perform()

return crl.fp.getvalue()

第二種方式：python自帶的urllib庫

import urllib

import urllib2

def PostData(query):

url = 'http://test.xinghaixu.com/query'

params = [{'test1':'test1','test2':'test2'}]

postDict = {}

postDict["method"] = "CommonQueryService"

postDict["params"] = params

#postData = urllib.urlencode(postDict);

postData = json.dumps(postDict, ensure_ascii=False)

req = urllib2.Request(url, postData);

# in most case, for do POST request, the content-type, is application/x-www-form-urlencoded

req.add_header('Content-Type', "application/x-www-form-urlencoded");

resp = urllib2.urlopen(req);

the_page = resp.read()

return the_page

PS：python在發送post的參數的時候，需要關注服務器端是支持post數組的方式還是post字符串的方式：

（1）發送數組：

postData = json.dumps(postDict, ensure_ascii=False)

（2）發送a=AAA&b=BBB??? 這種類似的參數形式：

postData = urllib.urlencode(postDict)

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