获取配置文件(导出表格4-3)

    /// <summary>
    /// 获取config配置文件
    /// </summary>
    public class ConfigHelper
    {
        private  ConfigHelper()
        {

        }

        /// <summary>
        /// 根据AppSettings获取配置信息
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public static string GetStringByAppSettings(string key)
        {
            string configString = ConfigurationManager.AppSettings[key];

            return configString;
        }

        /// <summary>
        /// 根据ConnectionStrings获取配置信息
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public static string GetstringByConnectionStrings(string key)
        {
            string configString = ConfigurationManager.ConnectionStrings[key].ConnectionString;

            return configString;
        }

    }