之前文章：《两种读写配置文件的方案(app.config与web.config通用)》，现在重新整理一个更完善的版本，增加批量读写以及指定配置文件路径，代码如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Configuration;
using System.IO; namespace Zuowj.Utils
{
/// <summary>
/// 配置工具类
/// Author：左文俊
/// Date：2018/1/27
public static class ConfigUtil
{
/// <summary>
/// 获取管理配置文件对象Configuration
/// </summary>
/// <param name="configPath">指定要管理的配置文件路径，如果为空或不存在，则管理程序集默认的配置文件路径</param>
/// <returns></returns>
private static Configuration GetConfiguration(string configPath = null)
{
if (!string.IsNullOrEmpty(configPath) && File.Exists(configPath))
{
ExeConfigurationFileMap map = new ExeConfigurationFileMap();
map.ExeConfigFilename = configPath;
return ConfigurationManager.OpenMappedExeConfiguration(map, ConfigurationUserLevel.None);
}
else
{
return ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
}
} /// <summary>
/// 获取指定配置文件+配置名称的配置项的值
/// </summary>
public static string GetAppSettingValue(string key, string defaultValue = null, string configPath = null)
{
var config = GetConfiguration(configPath);
var appSetting = config.AppSettings.Settings[key];
return appSetting.Value;
} /// <summary>
/// 设置配置值（存在则更新，不存在则新增）
/// </summary>
public static void SetAppSettingValue(string key, string value, string configPath = null)
{
var config = GetConfiguration(configPath);
var setting = config.AppSettings.Settings[key];
if (setting == null)
{
config.AppSettings.Settings.Add(key, value);
}
else
{
setting.Value = value;
} config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection("appSettings");
} /// <summary>
/// 删除配置值
/// </summary>
public static void RemoveAppSetting(string key, string configPath = null)
{
var config = GetConfiguration(configPath);
config.AppSettings.Settings.Remove(key);
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection("appSettings");
} /// <summary>
/// 设置多个配置值（存在则更新，不存在则新增）
/// </summary>
public static void SetAppSettingValues(IEnumerable<KeyValuePair<string, string>> settingValues, string configPath = null)
{
var config = GetConfiguration(configPath);
foreach (var item in settingValues)
{
var setting = config.AppSettings.Settings[item.Key];
if (setting == null)
{
config.AppSettings.Settings.Add(item.Key, item.Value);
}
else
{
setting.Value = item.Value;
}
}
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection("appSettings");
} /// <summary>
/// 获取所有配置值
/// </summary>
public static Dictionary<string, string> GetAppSettingValues(string configPath = null)
{
Dictionary<string, string> settingDic = new Dictionary<string, string>();
var config = GetConfiguration(configPath);
var settings = config.AppSettings.Settings;
foreach (string key in settings.AllKeys)
{
settingDic[key] = settings[key].ToString();
}
return settingDic;
} /// <summary>
/// 删除多个配置值
/// </summary>
public static void RemoveAppSettings(string configPath = null, params string[] keys)
{
var config = GetConfiguration(configPath);
if (keys != null)
{
foreach (string key in keys)
{
config.AppSettings.Settings.Remove(key);
}
}
else
{
config.AppSettings.Settings.Clear();
}
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection("appSettings");
} /// <summary>
/// 获取连接字符串
/// </summary>
public static string GetConnectionString(string name, string defaultconnStr = null, string configPath = null)
{
var config = GetConfiguration(configPath);
var connStrSettings = config.ConnectionStrings.ConnectionStrings[name];
if (connStrSettings == null)
{
return defaultconnStr;
}
return connStrSettings.ConnectionString;
} /// <summary>
/// 获取指定配置文件+连接名称的连接字符串配置项
/// </summary>
public static ConnectionStringSettings GetConnectionStringSetting(string name, string configPath = null)
{
var config = GetConfiguration(configPath);
var connStrSettings = config.ConnectionStrings.ConnectionStrings[name];
return connStrSettings;
} /// <summary>
/// 设置连接字符串的值（存在则更新，不存在则新增）
/// </summary>
public static void SetConnectionString(string name, string connstr, string provider, string configPath = null)
{
var config = GetConfiguration(configPath);
ConnectionStringSettings connStrSettings = config.ConnectionStrings.ConnectionStrings[name];
if (connStrSettings != null)
{
connStrSettings.ConnectionString = connstr;
connStrSettings.ProviderName = provider;
}
else
{
connStrSettings = new ConnectionStringSettings(name, connstr, provider);
config.ConnectionStrings.ConnectionStrings.Add(connStrSettings);
} config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection("connectionStrings");
} /// <summary>
/// 删除连接字符串配置项
/// </summary>
public static void RemoveConnectionString(string name, string configPath = null)
{
var config = GetConfiguration(configPath);
config.ConnectionStrings.ConnectionStrings.Remove(name);
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection("connectionStrings");
} /// <summary>
/// 获取所有的连接字符串配置项
/// </summary>
public static Dictionary<string, ConnectionStringSettings> GetConnectionStringSettings(string configPath = null)
{
var config = GetConfiguration(configPath);
var connStrSettingDic = new Dictionary<string, ConnectionStringSettings>();
var connStrSettings = ConfigurationManager.ConnectionStrings;
foreach (ConnectionStringSettings item in connStrSettings)
{
connStrSettingDic[item.Name] = item;
}
return connStrSettingDic;
} /// <summary>
/// 设置多个连接字符串的值（存在则更新，不存在则新增）
/// </summary>
public static void SetConnectionStrings(IEnumerable<ConnectionStringSettings> connStrSettings, string configPath = null)
{
var config = GetConfiguration(configPath);
foreach (var item in connStrSettings)
{
ConnectionStringSettings connStrSetting = config.ConnectionStrings.ConnectionStrings[item.Name];
if (connStrSetting != null)
{
connStrSetting.ConnectionString = item.ConnectionString;
connStrSetting.ProviderName = item.ProviderName;
}
else
{
config.ConnectionStrings.ConnectionStrings.Add(item);
}
} config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection("connectionStrings");
} /// <summary>
/// 删除多个连接字符串配置项
/// </summary>
public static void RemoveConnectionStrings(string configPath = null, params string[] names)
{
var config = GetConfiguration(configPath);
if (names != null)
{
foreach (string name in names)
{
config.ConnectionStrings.ConnectionStrings.Remove(name);
}
}
else
{
config.ConnectionStrings.ConnectionStrings.Clear();
}
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection("connectionStrings");
} } }