private static string getFromBaidu() { string resultJson = HttpWebRequestHelper.GetBaiduAcesessToken( BaiduAipHelper.BaiduTokenUrl, ConfigurationHelper.GetConfig(ConfigItemName.baiduApiKey.ToString()), ConfigurationHelper.GetConfig(ConfigItemName.baiduApiSecretKey.ToString()) ); string replaceJson = StringHelper.jsonCamelCaseToDBnameing(resultJson); mToken = JsonHelper.JsonToObject(replaceJson, typeof(BDAccessToken)) as BDAccessToken; mToken.getDate = DateTimeHelper.getCurrentDateTime(); if (mToken.error != null) { return(null); } else { writeToxml(); return(mToken.accessToken); } }