configSections 自定义 配置节 分离 学习 实例 源码
configSections 自定义 配置节 学习 实例
.aspx.cs
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//LcsCopyright 配置节
LCS.Configration.Copyright data;
//data = System.Configuration.ConfigurationSettings.GetConfig("LcsCopyright") as LCS.Configration.Copyright;//已过时
data = System.Configuration.ConfigurationManager.GetSection("LcsCopyright") as LCS.Configration.Copyright;//得到配置节的数据
Response.Write(data.AppName);
Response.Write(data.AppVer);
// 输出
// Lcs Configration Test 1.0 bate
Response.Write("<hr/>");
//LcsAppConfig 配置节
//载入配置节 这句话可以放在 Global.asax 的 Application_Start 中实现
System.Configuration.ConfigurationSettings.GetConfig("LcsAppConfig");
Response.Write(LCS.Configration.AppConfig.ConnectionString);
Response.Write(LCS.Configration.AppConfig.UserCount);
//输出
// this is a ConnectionString199
}
}
web.config
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="LcsCopyright" type="LCS.Configration.Settings" /><!--若有生成的dll名称，则后面还要加上，dll程序集名称-->
<section name="LcsAppConfig" type="LCS.Configration.AppConfig" /><!--这里实验直接放在App_Code里面了，所有不用写程序集名称-->
</configSections>
<LcsCopyright>
<AppName> Lcs Configration Test</AppName>
<AppVer> 1.0 bate</AppVer>
<AppAuthor> Lcskey</AppAuthor>
</LcsCopyright>
<LcsAppConfig>
<add key="ConnectionString" value="this is a ConnectionString" />
<add key="UserCount" value="199" />
</LcsAppConfig>
</configuration>
.cs
using System;
using System.Collections.Generic;
using System.Web;
using System.Xml;
namespace LCS.Configration
{
public class Settings : System.Configuration.IConfigurationSectionHandler
{
/// <summary>
/// 实现该接口的Create方法
/// ConfigurationSettings.GetConfig("")方法会自动调用此方法 给相应的实体属性赋值
/// </summary>
/// <param name="parent"></param>
/// <param name="input"></param>
/// <param name="node"></param>
/// <returns></returns>
public object Create(object parent, object input, XmlNode node)
{
Copyright data = new Copyright();
foreach (XmlNode xn in node.ChildNodes)
{
switch (xn.Name.ToLower())
{
case ("appname"):
data.AppName = xn.InnerText;
break;
case ("appver"):
data.AppVer = xn.InnerText;
break;
case ("appauthor"):
data.AppAuthor = xn.InnerText;
break;
}
}
return data;
}
}
/// <summary>
/// 从配置节中读取的版权配置节信息对应实体
/// </summary>
public class Copyright
{
public string AppName;
public string AppVer;
public string AppAuthor;
}
/// <summary>
/// 我们把所有的配置都映射成相应的静态成员变量
/// 并且是写成只读属性
/// 这样程序通过类似
/// AppConfig.ConnectionString
/// 就可以访问配置文件中的项目了
/// 读取之前需要调用
/// System.Configuration.ConfigurationSettings.GetConfig("LcsAppConfig");
/// 调用自己实现了IConfigurationSectionHandler接口的AppConfig来读取配置
/// </summary>
public class AppConfig : System.Configuration.IConfigurationSectionHandler
{
static String m_connectionString = String.Empty;
static Int32 m_userCount = 0;
public static String ConnectionString
{
get
{
return m_connectionString;
}
}
public static Int32 UserCount
{
get
{
return m_userCount;
}
}
static String ReadSetting(System.Collections.Specialized.NameValueCollection nvc, String key, String defaultValue)
{
String theValue = nvc[key];
if (theValue == String.Empty)
return defaultValue;
return theValue;
}
public object Create(object parent, object configContext, XmlNode section)
{
System.Collections.Specialized.NameValueCollection settings;
try
{
System.Configuration.NameValueSectionHandler baseHandler = new System.Configuration.NameValueSectionHandler();
settings = (System.Collections.Specialized.NameValueCollection)baseHandler.Create(parent, configContext, section);
}
catch
{
settings = null;
}
if (settings != null)
{
m_connectionString = AppConfig.ReadSetting(settings, "ConnectionString", String.Empty);
m_userCount = Convert.ToInt32(AppConfig.ReadSetting(settings, "UserCount", "0"));
}
return settings;
}
}
}
分离配置节
web.config
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="LcsCopyright" type="LCS.Configration.Settings"/><!--若有生成的dll名称，则后面还要加上，dll程序集名称-->
<section name="LcsAppConfig" type="LCS.Configration.AppConfig" restartOnExternalChanges="true" /><!--这里实验直接放在App_Code里面了，所有不用写程序集名称-->
</configSections>
<!--<LcsCopyright>
<AppName> Lcs Configration Test</AppName>
<AppVer> 1.0 bate</AppVer>
<AppAuthor> Lcskey</AppAuthor>
</LcsCopyright>-->
<!--<LcsAppConfig>
<add key="ConnectionString" value="this is a ConnectionString" />
<add key="UserCount" value="199" />
</LcsAppConfig>-->
<appSettings configSource="app.config" />
<connectionStrings configSource="conn.config" />
<!--将自定义的配置节分离出去-->
<LcsCopyright configSource="LcsCopyright.config" />
<LcsAppConfig configSource="LcsAppConfig.config"/>
</configuration>
app.config
<appSettings>
<add key="a" value="changed by application runtime" />
</appSettings>
conn.config
<connectionStrings>
<add name="c" connectionString="dbconnention....123" />
</connectionStrings>
LcsCopyright.config
<?xml version="1.0" encoding="utf-8"?>
<LcsCopyright>
<AppName> Lcs Configration Test</AppName>
<AppVer> 1.0 bate</AppVer>
<AppAuthor> Lcskey</AppAuthor>
</LcsCopyright>
LcsAppConfig.config
<?xml version="1.0" encoding="utf-8"?>
<LcsAppConfig>
<add key="ConnectionString" value="this is a ConnectionString" />
<add key="UserCount" value="199" />
</LcsAppConfig>
修改web.config.添加上述文件，在同一个目录下面
再运行程序看看，效果一样，数据全部都能读取到。
.aspx 还是原来的，没动代码
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//LcsCopyright 配置节
LCS.Configration.Copyright data = new LCS.Configration.Copyright();
//data = System.Configuration.ConfigurationSettings.GetConfig("LcsCopyright") as LCS.Configration.Copyright;//已过时
data = System.Configuration.ConfigurationManager.GetSection("LcsCopyright") as LCS.Configration.Copyright;//得到配置节的数据
Response.Write(data.AppName);
Response.Write(data.AppVer);
// 输出
// Lcs Configration Test 1.0 bate
Response.Write("<hr/>");
//LcsAppConfig 配置节
//载入配置节 这句话可以放在 Global.asax 的 Application_Start 中实现
System.Configuration.ConfigurationSettings.GetConfig("LcsAppConfig");
Response.Write(LCS.Configration.AppConfig.ConnectionString);
Response.Write(LCS.Configration.AppConfig.UserCount);
//输出
// this is a ConnectionString199
//分解web.config
Response.Write("<hr/>");
//appSettings 配置节
Response.Write(System.Configuration.ConfigurationManager.AppSettings["a"]);
Response.Write("<br/>");
//connectionStrings 配置节
Response.Write(System.Configuration.ConfigurationManager.ConnectionStrings["c"]);
//修改appSettings配置节而不会重起应用程序
//若需要重起，可设置配置节的 restartOnExternalChanges 属性
System.Configuration.Configuration cfg = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);
System.Configuration.AppSettingsSection appSetting = cfg.AppSettings;
appSetting.Settings["a"].Value = "changed by application runtime";
cfg.Save();
}
.aspx.cs
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//LcsCopyright 配置节
LCS.Configration.Copyright data;
//data = System.Configuration.ConfigurationSettings.GetConfig("LcsCopyright") as LCS.Configration.Copyright;//已过时
data = System.Configuration.ConfigurationManager.GetSection("LcsCopyright") as LCS.Configration.Copyright;//得到配置节的数据
Response.Write(data.AppName);
Response.Write(data.AppVer);
// 输出
// Lcs Configration Test 1.0 bate
Response.Write("<hr/>");
//LcsAppConfig 配置节
//载入配置节 这句话可以放在 Global.asax 的 Application_Start 中实现
System.Configuration.ConfigurationSettings.GetConfig("LcsAppConfig");
Response.Write(LCS.Configration.AppConfig.ConnectionString);
Response.Write(LCS.Configration.AppConfig.UserCount);
//输出
// this is a ConnectionString199
}
}
web.config
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="LcsCopyright" type="LCS.Configration.Settings" /><!--若有生成的dll名称，则后面还要加上，dll程序集名称-->
<section name="LcsAppConfig" type="LCS.Configration.AppConfig" /><!--这里实验直接放在App_Code里面了，所有不用写程序集名称-->
</configSections>
<LcsCopyright>
<AppName> Lcs Configration Test</AppName>
<AppVer> 1.0 bate</AppVer>
<AppAuthor> Lcskey</AppAuthor>
</LcsCopyright>
<LcsAppConfig>
<add key="ConnectionString" value="this is a ConnectionString" />
<add key="UserCount" value="199" />
</LcsAppConfig>
</configuration>
.cs
using System;
using System.Collections.Generic;
using System.Web;
using System.Xml;
namespace LCS.Configration
{
public class Settings : System.Configuration.IConfigurationSectionHandler
{
/// <summary>
/// 实现该接口的Create方法
/// ConfigurationSettings.GetConfig("")方法会自动调用此方法 给相应的实体属性赋值
/// </summary>
/// <param name="parent"></param>
/// <param name="input"></param>
/// <param name="node"></param>
/// <returns></returns>
public object Create(object parent, object input, XmlNode node)
{
Copyright data = new Copyright();
foreach (XmlNode xn in node.ChildNodes)
{
switch (xn.Name.ToLower())
{
case ("appname"):
data.AppName = xn.InnerText;
break;
case ("appver"):
data.AppVer = xn.InnerText;
break;
case ("appauthor"):
data.AppAuthor = xn.InnerText;
break;
}
}
return data;
}
}
/// <summary>
/// 从配置节中读取的版权配置节信息对应实体
/// </summary>
public class Copyright
{
public string AppName;
public string AppVer;
public string AppAuthor;
}
/// <summary>
/// 我们把所有的配置都映射成相应的静态成员变量
/// 并且是写成只读属性
/// 这样程序通过类似
/// AppConfig.ConnectionString
/// 就可以访问配置文件中的项目了
/// 读取之前需要调用
/// System.Configuration.ConfigurationSettings.GetConfig("LcsAppConfig");
/// 调用自己实现了IConfigurationSectionHandler接口的AppConfig来读取配置
/// </summary>
public class AppConfig : System.Configuration.IConfigurationSectionHandler
{
static String m_connectionString = String.Empty;
static Int32 m_userCount = 0;
public static String ConnectionString
{
get
{
return m_connectionString;
}
}
public static Int32 UserCount
{
get
{
return m_userCount;
}
}
static String ReadSetting(System.Collections.Specialized.NameValueCollection nvc, String key, String defaultValue)
{
String theValue = nvc[key];
if (theValue == String.Empty)
return defaultValue;
return theValue;
}
public object Create(object parent, object configContext, XmlNode section)
{
System.Collections.Specialized.NameValueCollection settings;
try
{
System.Configuration.NameValueSectionHandler baseHandler = new System.Configuration.NameValueSectionHandler();
settings = (System.Collections.Specialized.NameValueCollection)baseHandler.Create(parent, configContext, section);
}
catch
{
settings = null;
}
if (settings != null)
{
m_connectionString = AppConfig.ReadSetting(settings, "ConnectionString", String.Empty);
m_userCount = Convert.ToInt32(AppConfig.ReadSetting(settings, "UserCount", "0"));
}
return settings;
}
}
}
分离配置节
web.config
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="LcsCopyright" type="LCS.Configration.Settings"/><!--若有生成的dll名称，则后面还要加上，dll程序集名称-->
<section name="LcsAppConfig" type="LCS.Configration.AppConfig" restartOnExternalChanges="true" /><!--这里实验直接放在App_Code里面了，所有不用写程序集名称-->
</configSections>
<!--<LcsCopyright>
<AppName> Lcs Configration Test</AppName>
<AppVer> 1.0 bate</AppVer>
<AppAuthor> Lcskey</AppAuthor>
</LcsCopyright>-->
<!--<LcsAppConfig>
<add key="ConnectionString" value="this is a ConnectionString" />
<add key="UserCount" value="199" />
</LcsAppConfig>-->
<appSettings configSource="app.config" />
<connectionStrings configSource="conn.config" />
<!--将自定义的配置节分离出去-->
<LcsCopyright configSource="LcsCopyright.config" />
<LcsAppConfig configSource="LcsAppConfig.config"/>
</configuration>
app.config
<appSettings>
<add key="a" value="changed by application runtime" />
</appSettings>
conn.config
<connectionStrings>
<add name="c" connectionString="dbconnention....123" />
</connectionStrings>
LcsCopyright.config
<?xml version="1.0" encoding="utf-8"?>
<LcsCopyright>
<AppName> Lcs Configration Test</AppName>
<AppVer> 1.0 bate</AppVer>
<AppAuthor> Lcskey</AppAuthor>
</LcsCopyright>
LcsAppConfig.config
<?xml version="1.0" encoding="utf-8"?>
<LcsAppConfig>
<add key="ConnectionString" value="this is a ConnectionString" />
<add key="UserCount" value="199" />
</LcsAppConfig>
修改web.config.添加上述文件，在同一个目录下面
再运行程序看看，效果一样，数据全部都能读取到。
.aspx 还是原来的，没动代码
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//LcsCopyright 配置节
LCS.Configration.Copyright data = new LCS.Configration.Copyright();
//data = System.Configuration.ConfigurationSettings.GetConfig("LcsCopyright") as LCS.Configration.Copyright;//已过时
data = System.Configuration.ConfigurationManager.GetSection("LcsCopyright") as LCS.Configration.Copyright;//得到配置节的数据
Response.Write(data.AppName);
Response.Write(data.AppVer);
// 输出
// Lcs Configration Test 1.0 bate
Response.Write("<hr/>");
//LcsAppConfig 配置节
//载入配置节 这句话可以放在 Global.asax 的 Application_Start 中实现
System.Configuration.ConfigurationSettings.GetConfig("LcsAppConfig");
Response.Write(LCS.Configration.AppConfig.ConnectionString);
Response.Write(LCS.Configration.AppConfig.UserCount);
//输出
// this is a ConnectionString199
//分解web.config
Response.Write("<hr/>");
//appSettings 配置节
Response.Write(System.Configuration.ConfigurationManager.AppSettings["a"]);
Response.Write("<br/>");
//connectionStrings 配置节
Response.Write(System.Configuration.ConfigurationManager.ConnectionStrings["c"]);
//修改appSettings配置节而不会重起应用程序
//若需要重起，可设置配置节的 restartOnExternalChanges 属性
System.Configuration.Configuration cfg = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);
System.Configuration.AppSettingsSection appSetting = cfg.AppSettings;
appSetting.Settings["a"].Value = "changed by application runtime";
cfg.Save();
}
}
参考了部分园子里的文章和MSDN。现学现卖。
以前只把app和conn分离出来过，自定义的只是想着应该可以分离，但从来都没有试过。今天小试了一下，还不错。
能直接跑起来的实例源码
