前言
相信大家应该都知道.NET Core现在不再支持原来的web.config配置文件了,取而代之的是json或xml配置文件。官方推荐的项目配置方式是使用appsettings.json配置文件,这对现有一些重度使用web.cofig配置的项目迁移可能是不可接受的。
但是好消息是,我们是可以直接在.NET Core 2.0项目种利用上现有的web.config的。本文将详细介绍.NET Core 2.0迁移之web.config 配置文件的相关内容,下面话不多说了,来一起看看详细的介绍吧。
迁移方法
1.首先在解决方案中引入System.Configuration.ConfigurationManager
,只有引入它才可以让我们已有的读取web.config代码起作用.
2. 导入web.config文件到项目根目录,并将名称修改为app.config. 因为.NET Core的项目本质是控制台应用,所以ConfigurationManager的API会去默认读取app.config配置文件,而不是web.config配置文件。
3.去除config中和需要的配置无关的内容,主要是<system.web>
, <system.webServer>
和<system.codedom>
等典型asp.net标签。
移除前:
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<?xml version= "1.0" encoding= "utf-8" ?>
<configuration> <configSections> <!-- For more information on Entity Framework configuration, visit http: //go.microsoft.com/fwlink/?LinkID=237468 --> <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" /> </configSections> <connectionStrings> <add name="DefaultConnection" connectionString="Data Source=(LocalDb)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\aspnet-WebApplication24-20170824065102.mdf;Initial Catalog=aspnet-WebApplication24-20170824065102;Integrated Security=True"
providerName= "System.Data.SqlClient" /> </connectionStrings>
<appSettings>
<add key= "webpages:Version" value= "3.0.0.0" />
<add key= "webpages:Enabled" value= "false" />
<add key= "ClientValidationEnabled" value= "true" />
<add key= "UnobtrusiveJavaScriptEnabled" value= "true" />
<add key= "MyKey" value= "true" />
</appSettings>
<system.web>
<compilation debug= "true" targetFramework= "4.7" />
<httpRuntime targetFramework= "4.7" />
<httpModules>
<add name= "ApplicationInsightsWebTracking" type= "Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web" />
</httpModules>
</system.web>
<runtime>
<assemblyBinding xmlns= "urn:schemas-microsoft-com:asm.v1" >
<dependentAssembly>
<assemblyIdentity name= "Newtonsoft.Json" culture= "neutral" publicKeyToken= "30ad4fe6b2a6aeed" />
<bindingRedirect oldVersion= "0.0.0.0-6.0.0.0" newVersion= "6.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name= "System.Web.Optimization" publicKeyToken= "31bf3856ad364e35" />
<bindingRedirect oldVersion= "1.0.0.0-1.1.0.0" newVersion= "1.1.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name= "WebGrease" publicKeyToken= "31bf3856ad364e35" />
<bindingRedirect oldVersion= "0.0.0.0-1.5.2.14234" newVersion= "1.5.2.14234" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name= "System.Web.Helpers" publicKeyToken= "31bf3856ad364e35" />
<bindingRedirect oldVersion= "1.0.0.0-3.0.0.0" newVersion= "3.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name= "System.Web.WebPages" publicKeyToken= "31bf3856ad364e35" />
<bindingRedirect oldVersion= "1.0.0.0-3.0.0.0" newVersion= "3.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name= "System.Web.Mvc" publicKeyToken= "31bf3856ad364e35" />
<bindingRedirect oldVersion= "1.0.0.0-5.2.3.0" newVersion= "5.2.3.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
<system.webServer>
<validation validateIntegratedModeConfiguration= "false" />
<modules>
<remove name= "ApplicationInsightsWebTracking" />
<add name= "ApplicationInsightsWebTracking" type= "Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web" preCondition= "managedHandler" />
</modules>
</system.webServer>
<system.codedom>
<compilers>
<compiler language= "c#;cs;csharp" extension= ".cs" type= "Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.5.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel= "4" compilerOptions= "/langversion:default /nowarn:1659;1699;1701" />
<compiler language= "vb;vbs;visualbasic;vbscript" extension= ".vb" type= "Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.5.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel= "4" compilerOptions= "/langversion:default /nowarn:41008 /define:_MYTYPE=\"Web\" /optionInfer+" />
</compilers>
</system.codedom>
</configuration>
|
修改后:
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<?xml version= "1.0" encoding= "utf-8" ?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http: //go.microsoft.com/fwlink/?LinkID=237468 -->
<section name= "entityFramework" type= "System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission= "false" />
</configSections>
<connectionStrings>
<add name= "DefaultConnection" connectionString= "Data Source=(LocalDb)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\aspnet-WebApplication24-20170824065102.mdf;Initial Catalog=aspnet-WebApplication24-20170824065102;Integrated Security=True"
providerName= "System.Data.SqlClient" />
</connectionStrings>
<appSettings>
<add key= "webpages:Version" value= "3.0.0.0" />
<add key= "webpages:Enabled" value= "false" />
<add key= "ClientValidationEnabled" value= "true" />
<add key= "UnobtrusiveJavaScriptEnabled" value= "true" />
<add key= "MyKey" value= "true" />
</appSettings>
</configuration>
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4.测试原ASP.NET代码,查看读取配置值
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using System.Configuration;
namespace WebConfigTest.Configuration
{
public class ConfigurationService
{
public static bool GetConfigValue( string key)
{
var result = false ;
var val= ConfigurationManager.AppSettings[key];
if (val != null )
{
result = bool .Parse(val);
}
return result;
}
}
}
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打个断点,看下读取配置值是否正确:
大功告成,读取的配置值完全正确。
大家可以使用这个方法快速迁移现有配置文件和代码过去啦。
总结
以上就是这篇文章的全部内容了,希望本文的内容对大家的学习或者工作能带来一定的帮助,如果有疑问大家可以留言交流,谢谢大家对服务器之家的支持。
原文链接:http://www.cnblogs.com/mantgh/p/7425113.html