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：
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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"
);
}
}
}
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本文转自 梦在旅途 博客园博客，原文链接：http://www.cnblogs.com/zuowj/p/8366735.html ，如需转载请自行联系原作者
