using System;using System.Configuration;using System.Web.Configuration;namespace HPWorkUtility{    /// <summary>    /// 配置文件读写器    /// </summary>    public class ConfigReaderWriter    {        /// <summary>        /// 获取指定的AppSetting        /// </summary>        /// <param name="key">键的名称</param>        /// <returns>键值</returns>        public static string GetAppSetting(string key)        {            return ConfigurationManager.AppSettings[key];        }        /// <summary>        /// 获取指定的AppSetting        /// </summary>        /// <typeparam name="T">类型</typeparam>        /// <param name="key">键的名称</param>        /// <returns>键值</returns>        public static T GetAppSetting<T>(string key)        {            var val = GetAppSetting(key);            return (T)Convert.ChangeType(val, typeof(T));        }        /// <summary>        /// 设置AppSetting节的值        /// </summary>        /// <param name="key">键</param>        /// <param name="value">值</param>        /// <param name="isWebConfig">是否是WebConfig文件</param>        public static void SetAppSetting(string key, string value, bool isWebConfig)        {            //增加的内容写在appSettings段下 <add key="RegCode" value="http://www.mamicode.com/0"/>            Configuration config = null;            if (isWebConfig)            {                config = WebConfigurationManager.OpenWebConfiguration("~");            }            else            {                config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);            }            if (config.AppSettings.Settings[key] == null)            {                config.AppSettings.Settings.Add(key, value);            }            else            {                config.AppSettings.Settings[key].Value = value;            }            config.Save(ConfigurationSaveMode.Modified);            ConfigurationManager.RefreshSection("appSettings");//重新加载新的配置文件         }        /// <summary>        /// 读取自定义配置节        /// </summary>        /// <param name="sectionName">配置节的名称</param>        /// <returns>配置对象</returns>        public static object GetCustomSection(string sectionName)        {            return ConfigurationManager.GetSection(sectionName);        }        /// <summary>        /// 读取自定义配置节        /// </summary>        /// <typeparam name="T">类型</typeparam>        /// <param name="sectionName">配置节的名称</param>        /// <returns>配置对象</returns>        public static T GetCustomSection<T>(string sectionName) where T : class        {            return GetCustomSection(sectionName) as T;        }        /// <summary>        /// 读取连接字符串        /// </summary>        /// <param name="name">名称</param>        /// <returns>连接字符串</returns>        public static string GetConnectionString(string name)        {            return GetConnectionStringSetting(name).ConnectionString;        }        /// <summary>        /// 读取连接字符串设置对象        /// </summary>        /// <param name="name">名称</param>        /// <returns>设置对象</returns>        public static ConnectionStringSettings GetConnectionStringSetting(string name)        {            return ConfigurationManager.ConnectionStrings[name];        }    }}