Python使用百度通用API进行翻译实现

my_api_config = APIConfig("12121123456789", "SFNFENRFNEFLWE")
translater = Translater(my_api_config, from_lang="en", to_lang="zh")
print(translater.translate(
    "hello world, I want to love you, Where is my dog?")
)

# 百度翻译API配置，链接对的话，填下ID和密匙就OK。
class APIConfig:
    def __init__(self,
                 appid: str = "",
                 key: str = "",
                 url: str = "https://fanyi-api.baidu.com/api/trans/vip/translate",
                 salt: str = "123"
                 ):
        self.__appid = appid  # 你的百度ID
        self.__key = key  # 你的密匙
        self.__url = url  # 百度翻译API链接
        self.__salt = salt  # 随机数字

    @property
    def appid(self):
        return self.__appid

    @appid.setter
    def appid(self, value: str):
        self.__appid = value

    @property
    def key(self):
        return self.__key

    @key.setter
    def key(self, value: str):
        self.__key = value

    @property
    def url(self):
        return self.__url

    @url.setter
    def url(self, value: str):
        self.__url = value

    @property
    def salt(self):
        return self.__salt

    @salt.setter
    def salt(self, value: str):
        self.__salt = value

class Translater:
    def __init__(self, config: APIConfig, from_lang: str, to_lang: str):
        self.__config = config  # API配置
        self.__from_lang = from_lang  # 原语言，可为auto
        self.__to_lang = to_lang  # 目标语言

    # 按百度API要求连接要加密的文本
    def __make_md5_text(self, query: str) -> str:
        return "{}{}{}{}".format(
            self.__config.appid,
            query,
            self.__config.salt,
            self.__config.key
        )

    # 按百度API要求进行MD5加密
    def __make_signture(self, query: str) -> str:
        md5 = hashlib.md5()
        md5.update(self.__make_md5_text(query).encode('utf-8'))
        return md5.hexdigest()

    # 发送post请求调用百度API
    def __post(self, query: str):
        headers = {
            "Content-Type": "application/x-www-form-urlencoded"
        }
        data = {
            "q": query,
            "from": self.__from_lang,
            "to": self.__to_lang,
            "appid": self.__config.appid,
            "salt": self.__config.salt,
            "sign": self.__make_signture(query)
        }
        try:
            response = requests.post(
                url=self.__config.url, headers=headers, data=data)
            return response
        except Exception as e:
            print(str(e))
            exit()

    # 用户接口
    def translate(self, query: str) -> list:
        result = self.__post(query).json()
        if "trans_result" in result:
            return result["trans_result"]
        else:
            print("错误信息：" + str(result))
            raise RuntimeError("百度翻译失败，请检验配置有效性")