Python通过调用有道翻译api实现翻译功能示例

# coding=utf-8
import urllib
import urllib2
import json
import time
import hashlib
class YouDaoFanyi:
 def __init__(self, appKey, appSecret):
  self.url = 'https://openapi.youdao.com/api/'
  self.headers = {
   "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.109 Safari/537.36",
  }
  self.appKey = appKey # 应用id
  self.appSecret = appSecret # 应用密钥
  self.langFrom = 'auto' # 翻译前文字语言,auto为自动检查
  self.langTo = 'auto'  # 翻译后文字语言,auto为自动检查
 def getUrlEncodedData(self, queryText):
  '''
  将数据url编码
  :param queryText: 待翻译的文字
  :return: 返回url编码过的数据
  '''
  salt = str(int(round(time.time() * 1000))) # 产生随机数 ,其实固定值也可以,不如"2"
  sign_str = self.appKey + queryText + salt + self.appSecret
  sign = hashlib.md5(sign_str).hexdigest()
  payload = {
   'q': queryText,
   'from': self.langFrom,
   'to': self.langTo,
   'appKey': self.appKey,
   'salt': salt,
   'sign': sign
  }
  # 注意是get请求，不是请求
  data = urllib.urlencode(payload)
  return data
 def parseHtml(self, html):
  '''
  解析页面，输出翻译结果
  :param html: 翻译返回的页面内容
  :return: None
  '''
  data = json.loads(html)
  print '-' * 10
  translationResult = data['translation']
  if isinstance(translationResult, list):
   translationResult = translationResult[0]
  print translationResult
  if "basic" in data:
   youdaoResult = "\n".join(data['basic']['explains'])
   print '有道词典结果'
   print youdaoResult
  print '-' * 10
 def translate(self, queryText):
  data = self.getUrlEncodedData(queryText) # 获取url编码过的数据
  target_url = self.url + '?' + data # 构造目标url
  request = urllib2.Request(target_url, headers=self.headers) # 构造请求
  response = urllib2.urlopen(request) # 发送请求
  self.parseHtml(response.read()) # 解析，显示翻译结果
if __name__ == "__main__":
 appKey = '应用id' # 应用id
 appSecret = '应用密钥' # 应用密钥
 fanyi = YouDaoFanyi(appKey, appSecret)
 while True:
  queryText = raw_input("请输入你好翻译的文字[Q|quit退出]: ").strip()
  if queryText in ['Q', 'quit']:
   break
  fanyi.translate(queryText)