c# Config 配置文件帮助类

最新推荐文章于 2024-04-10 17:49:34 发布

原创最新推荐文章于 2024-04-10 17:49:34 发布 · 619 阅读

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#c# #java #开发语言

文章介绍了如何在C#中使用ConfigHelper类，通过指定目录获取AppSettings和ConnectionStrings配置文件中的键值对，包括默认情况下的全局配置和指定文件路径的情况。

public class ConfigHelper
{
#region 获取指定目录 AppSettings 配置文件值

/// <summary>
/// 获取指定目录 AppSettings 配置文件值
/// </summary>
/// <param name="key"></param>
/// <param name="fileName"></param>
/// <returns></returns>
public static string GetAppSettings(string key, string fileName = "config/App.config")
{
var value = "";
if (string.IsNullOrEmpty(fileName))
{
value = ConfigurationManager.AppSettings[key].ToString();
}
else
{
ExeConfigurationFileMap map = new ExeConfigurationFileMap();
map.ExeConfigFilename = System.AppDomain.CurrentDomain.BaseDirectory + fileName;
Configuration config = ConfigurationManager.OpenMappedExeConfiguration(map, ConfigurationUserLevel.None);
if (config.AppSettings.Settings[key] != null)
{
value = config.AppSettings.Settings[key].Value;
}
}
return value;
}
#endregion

#region 获取指定目录 ConnectionStrings 配置文件值

/// <summary>
/// 获取指定目录 ConnectionStrings 配置文件值
/// </summary>
/// <param name="key"></param>
/// <param name="fileName">config/app.config</param>
/// <returns></returns>
public static string GetConnectionStrings(string key, string fileName = "")
{
var value = "";
if (string.IsNullOrEmpty(fileName))
{
value = ConfigurationManager.ConnectionStrings[key].ConnectionString;
}
else
{
ExeConfigurationFileMap map = new ExeConfigurationFileMap();
map.ExeConfigFilename = System.AppDomain.CurrentDomain.BaseDirectory + fileName;
Configuration config = ConfigurationManager.OpenMappedExeConfiguration(map, ConfigurationUserLevel.None);
if (config.ConnectionStrings.ConnectionStrings[key] != null)
{
value = config.ConnectionStrings.ConnectionStrings[key].ConnectionString;
}
}
return value;
}
#endregion
}