废话不多说，直接贴代码，有兴趣的访问我的 github。

#!/usr/bin/env python

# -*- coding:utf8 -*-

import sys

reload(sys)

sys.setdefaultencoding('utf8')

def sendsms(phone, param_string, access_key_id, access_key_secret, template_code, sign_name):

from datetime import datetime

import uuid

import requests

url = 'https://sms.aliyuncs.com/'

ts = datetime.utcnow().strftime('%Y-%m-%dT%H:%M:%SZ')

once = str(uuid.uuid4())

data = {

'Action': 'SingleSendSms',

'SignName': sign_name,

'TemplateCode': template_code,

'RecNum': phone,

'ParamString': param_string,

'Format': 'JSON',

'Version': '2016-09-27',

'AccessKeyId': access_key_id,

'SignatureMethod': 'HMAC-SHA1',

'Timestamp': ts,

'SignatureVersion': '1.0',

'SignatureNonce': once,

}

def __percent_encode(s):

import urllib

s = str(s)

s = urllib.quote(s.decode('utf8').encode('utf8'), '')

s = s.replace('+', '%20')

s = s.replace('*', '%2A')

s = s.replace('%7E', '~')

return s

def __gen_signature(data, req_method, secret):

import hashlib

import hmac

import base64

sorted_data = sorted(data, key=lambda v: v[0])

vals = []

for k, v in sorted_data:

vals.append(__percent_encode(k) + '=' + __percent_encode(v))

params = '&'.join(vals)

string_to_sign = req_method + '&%2F&' + __percent_encode(params)

key = secret + '&'

signature = base64.encodestring(hmac.new(key, string_to_sign, hashlib.sha1).digest()).strip()

return signature

try:

headers = {

'Content-Type': 'application/x-www-form-urlencoded',

}

signature = __gen_signature(data.items(), 'POST', access_key_secret)

data['Signature'] = signature

r = requests.post(url, data=data, headers=headers)

print r.text

except Exception, e:

print 'EXCEPT:', e

if __name__ == '__main__':

pass

最后想说的是，阿里云文档中关于 base64 后的签名值还需要做一次 URLEncode 编码的说法是有问题的，事实证明只会报错：Specified signature is not matched with our calculation.，掉这坑里差点没爬上来。