115 lines
4.7 KiB
C#
115 lines
4.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Configuration;
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namespace AutoUpdater.Lib
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{
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public static class ConfigHelper
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{
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/// <summary>
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/// 依据连接串名字connectionName返回数据连接字符串
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/// </summary>
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/// <param name="ConfigFilePath">配置文件</param>
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/// <param name="connectionName">ConnectionStrings连接名</param>
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/// <returns></returns>
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public static string GetConnectionStringsConfig(string ConfigFilePath, string connectionName)
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{
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//指定config文件读取
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ExeConfigurationFileMap fileMap = new ExeConfigurationFileMap
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{
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ExeConfigFilename = ConfigFilePath
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};
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Configuration _Configuration = ConfigurationManager.OpenMappedExeConfiguration(fileMap, ConfigurationUserLevel.None);
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string connectionString = _Configuration.ConnectionStrings.ConnectionStrings[connectionName].ConnectionString;
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return connectionString;
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}
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///<summary>
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///更新连接字符串
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///</summary>
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///<param name="newName">连接字符串名称</param>
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///<param name="newConString">连接字符串内容</param>
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///<param name="newProviderName">数据提供程序名称</param>
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public static void UpdateConnectionStringsConfig(string ConfigFilePath, string newName, string newConString, string newProviderName)
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{
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//指定config文件读取
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ExeConfigurationFileMap fileMap = new ExeConfigurationFileMap
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{
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ExeConfigFilename = ConfigFilePath
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};
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Configuration _Configuration = ConfigurationManager.OpenMappedExeConfiguration(fileMap, ConfigurationUserLevel.None);
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bool exist = false; //记录该连接串是否已经存在
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//如果要更改的连接串已经存在
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if (_Configuration.ConnectionStrings.ConnectionStrings[newName] != null)
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{
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exist = true;
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}
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// 如果连接串已存在，首先删除它
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if (exist)
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{
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_Configuration.ConnectionStrings.ConnectionStrings.Remove(newName);
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}
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//新建一个连接字符串实例
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ConnectionStringSettings mySettings =
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new ConnectionStringSettings(newName, newConString, newProviderName);
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// 将新的连接串添加到配置文件中.
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_Configuration.ConnectionStrings.ConnectionStrings.Add(mySettings);
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// 保存对配置文件所作的更改
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_Configuration.Save(ConfigurationSaveMode.Modified);
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// 强制重新载入配置文件的ConnectionStrings配置节
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ConfigurationManager.RefreshSection("ConnectionStrings");
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}
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///<summary>
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///返回*.exe.config文件中appSettings配置节的value项
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///</summary>
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///<param name="strKey"></param>
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///<returns></returns>
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public static string GetAppConfig(string ConfigFilePath, string Key)
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{
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ExeConfigurationFileMap fileMap = new ExeConfigurationFileMap
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{
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ExeConfigFilename = ConfigFilePath
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};
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Configuration _Configuration = ConfigurationManager.OpenMappedExeConfiguration(fileMap, ConfigurationUserLevel.None);
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if (_Configuration.AppSettings.Settings[Key] == null)
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{
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return "";
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}
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else
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{
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return _Configuration.AppSettings.Settings[Key].Value;
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}
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}
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///<summary>
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///在*.exe.config文件中appSettings配置节增加一对键值对
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///</summary>
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///<param name="newKey"></param>
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///<param name="newValue"></param>
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public static void UpdateAppConfig(string ConfigFilePath, string Key, string Value)
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{
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ExeConfigurationFileMap fileMap = new ExeConfigurationFileMap
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{
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ExeConfigFilename = ConfigFilePath
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};
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Configuration _Configuration = ConfigurationManager.OpenMappedExeConfiguration(fileMap, ConfigurationUserLevel.None);
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if (_Configuration.AppSettings.Settings[Key] == null)
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{
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_Configuration.AppSettings.Settings.Add(Key, Value);
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}
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else
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{
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_Configuration.AppSettings.Settings[Key].Value = Value;
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}
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_Configuration.Save();
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ConfigurationManager.RefreshSection("appSettings");
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}
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}
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}
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