Ejemplo n.º 1
0
        private Access_Token GetAccess_token()
        {
            Access_Token token = new Access_Token();
            //请求获取 access_token。access_token有效期为一个月,所以可以缓存
            //2018-05-22 读取缓存的access_token
            var resp = Auth.OpenApiFetchToken(ApiKey, SecretKey, true);

            ExpireAt           = DateTime.Now.AddSeconds((int)resp["expires_in"] - 60 * 60);
            IsDev              = true;
            Token              = (string)resp["access_token"];
            token.access_token = Token;
            token.expires_in   = ExpireAt.ToString();
            return(token);
        }
Ejemplo n.º 2
0
        /// <summary>
        /// 根据当前日期 判断Access_Token 是否超期  如果超期返回新的Access_Token   否则返回之前的Access_Token
        /// </summary>
        /// <returns></returns>
        private void IsExistAccess_Token()
        {
            try
            {
                DateTime YouXRQ;
                // 读取XML文件中的数据,并显示出来 ,注意文件路径
                string folder = System.AppDomain.CurrentDomain.BaseDirectory + "Baidu/";
                if (!Directory.Exists(folder))
                {
                    Directory.CreateDirectory(folder);
                }
                string      filepath = folder + "access_token.xml";
                XmlDocument xml      = new XmlDocument();
                if (!File.Exists(filepath))
                {
                    var file = File.Create(filepath);
                    file.Close();
                    file.Dispose();
                    //向xml中写入节点
                    XmlElement root = xml.CreateElement("xml");
                    xml.AppendChild(root);
                    xml.Save(filepath);
                    XmlElement child1 = xml.CreateElement("Access_Token");
                    XmlElement child2 = xml.CreateElement("Access_YouXRQ");
                    xml.SelectSingleNode("xml").AppendChild(child1);
                    xml.SelectSingleNode("xml").AppendChild(child2);
                    xml.Save(filepath);
                }
                StreamReader str = new StreamReader(filepath, System.Text.Encoding.UTF8);
                if (str.BaseStream.Length == 0)
                {
                    YouXRQ = default(DateTime);
                }
                else
                {
                    xml.Load(str);
                    str.Close();
                    str.Dispose();
                    Token = xml.SelectSingleNode("xml").SelectSingleNode("Access_Token").InnerText;
                    string time = xml.SelectSingleNode("xml").SelectSingleNode("Access_YouXRQ").InnerText;
                    if (string.IsNullOrEmpty(time))
                    {
                        YouXRQ = default(DateTime);
                    }
                    else
                    {
                        YouXRQ = Convert.ToDateTime(time);
                    }
                }


                if (DateTime.Now > YouXRQ || YouXRQ == default(DateTime))
                {
                    Access_Token mode = GetAccess_token();
                    xml.SelectSingleNode("xml").SelectSingleNode("Access_Token").InnerText  = mode.access_token;
                    xml.SelectSingleNode("xml").SelectSingleNode("Access_YouXRQ").InnerText = mode.expires_in;
                    xml.Save(filepath);
                    ExpireAt = DateTime.Parse(mode.expires_in);
                    Token    = mode.access_token;
                    IsDev    = true;
                }
                ExpireAt = YouXRQ;
                IsDev    = true;
            }
            catch (Exception ex)
            {
            }
            finally
            {
            }
        }