C# 如何擷取自訂的config中節點的值，並修改節點的值

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現定義一個方法 DIYConfigHelper.cs

using System;using System.Xml;using System.Configuration;using System.Reflection;using System.Web;using System.IO;namespace Chain.Common{    /// <summary>    /// Summary description for ReadWriteConfig.    /// </summary>    public class DIYConfigHelper    {        /// <summary>        ///         /// </summary>        /// <param name="key">節點名稱</param>        /// <returns></returns>        /// <summary>        /// 擷取自訂 index.config 檔案中的 appsetting 節點值        /// </summary>        /// <param name="path">config檔案的路徑</param>        /// <param name="key">節點名稱</param>        /// <returns>節點名稱的值</returns>        public static string GetIndexConfigValue(string path, string key)        {            string indexConfigPath = path;            if (string.IsNullOrEmpty(indexConfigPath))                throw new Exception("請檢查應用程式設定檔 appSettings 節點，是否存在 indexConfig 且 value 不為空白的配置節！");            if (!File.Exists(indexConfigPath))                throw new Exception(string.Format("設定檔不存在：{0}", indexConfigPath));            ExeConfigurationFileMap ecf = new ExeConfigurationFileMap();            ecf.ExeConfigFilename = indexConfigPath;            Configuration config = ConfigurationManager.OpenMappedExeConfiguration(ecf, ConfigurationUserLevel.None);            return config.AppSettings.Settings[key].Value;        }        /// <summary>        /// 設定自訂 index.config 檔案中的 appsetting 節點值        /// </summary>        /// <param name="path">config檔案的路徑</param>        /// <param name="key">節點名稱</param>        /// <param name="value">需要修改的值</param>        /// <returns>true：修改成功 false：修改失敗</returns>        public static bool SetIndexConfigValue(string path, string key, string value)        {            string indexConfigPath = path;            if (string.IsNullOrEmpty(indexConfigPath))                throw new Exception("請檢查應用程式設定檔 appSettings 節點，是否存在 indexConfig 且 value 不為空白的配置節！");            if (!File.Exists(indexConfigPath))                throw new Exception(string.Format("設定檔不存在：{0}", indexConfigPath));            ExeConfigurationFileMap ecf = new ExeConfigurationFileMap();            ecf.ExeConfigFilename = indexConfigPath;            Configuration config = ConfigurationManager.OpenMappedExeConfiguration(ecf, ConfigurationUserLevel.None);            config.AppSettings.Settings[key].Value = value;            config.Save();            return true;        }    }}

調用方式：

string ss = Chain.Common.DIYConfigHelper.GetIndexConfigValue(HttpRuntime.AppDomainAppPath.ToString() + "DIY.config", "14");bool tt = Chain.Common.DIYConfigHelper.SetIndexConfigValue(HttpRuntime.AppDomainAppPath.ToString() + "DIY.config", "14", "5");

DIY.config檔案的內容

<?xml version="1.0" encoding="utf-8"?><configuration>  <appSettings>     <add key="15" value="663CFB4AF7AE2A91B14587C31B3DE60AF38AED2E63F5040C5D453CBC704162B8ACDD7A7D67A95FA0" />     <add key="14" value="156D7DB054ABBF9B321B1E8982130FDA3420475BC524C4259C55A8CEA4F884DE649FD16284A1053F" />  </appSettings>  <connectionStrings /></configuration>

 

C# 如何擷取自訂的config中節點的值，並修改節點的值