Web.config文件是一个XML文本文件，它用来储存 ASP.NET Web 应用程序的配置信息（如最常用的设置ASP.NET Web 应用程序的身份验证方式），它可以出现在应用程序的每一个目录中。当你通过.NET新建一个Web应用程序后，默认情况下会在根目录自动创建一个默认的Web.config文件，包括默认的配置设置，所有的子目录都继承它的配置设置。如果你想修改子目录的配置设置，你可以在该子目录下新建一个Web.config文件。它可以提供除从父目录继承的配置信息以外的配置信息，也可以重写或修改父目录中定义的设置。
在运行时对Web.config文件的修改不需要重启服务就可以生效（注： 节例外）。当然Web.config文件是可以扩展的。你可以自定义新配置参数并编写配置节处理程序以对它们进行处理。
复制代码 代码如下:
<?xml version="1.0"?>
<configuration>
<>
<configSections>
<sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
<sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
<section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/>
</sectionGroup>
</sectionGroup>
<section name="rewriter" type="Intelligencia.UrlRewriter.Configuration.RewriterConfigurationSectionHandler, Intelligencia.UrlRewriter"/>
</configSections>
<>
<appSettings>
<add key="ErrPage" value="http://www.cnblogs.com"/>
</appSettings>
<>
<connectionStrings>
<add name="sqlConnectionString" connectionString=""/>
</connectionStrings>
<>
<location path="Default.aspx" allowOverride="false">
<>
<system.web>
<>
<identity impersonate="false" />
<>
<pages masterPageFile="Index" theme="Default" buffer="true" enableViewStateMac="true" validateRequest="false" enableViewState="false">
<>
<controls></controls>
<>
<namespaces></namespaces>
</pages>
<>
<customErrors defaultRedirect="Err.html" mode="RemoteOnly">
<>
<error statusCode="403" redirect="NoAccess.htm" />
<error statusCode="404" redirect="FileNotFound.htm" />
</customErrors>
<>
<trace enabled="true" localOnly="false" pageOutput="true" requestLimit="15" traceMode="SortByCategory"/>
<>
<compilation debug="true" defaultLanguage="c#" batch="false">
<assemblies>
<>
<add assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add assembly="System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Web.Extensions.Design, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Xml, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Web.Services, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Configuration, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
</assemblies>
<>
<buildProviders>
<add extension=".aspx" type="System.Web.Compilation.PageBuildProvider"/>
<add extension=".ascx" type="System.Web.Compilation.UserControlBuildProvider"/>
<add extension=".master" type="System.Web.Compilation.MasterPageBuildProvider"/>
<add extension=".asmx" type="System.Web.Compilation.WebServiceBuildProvider"/>
<add extension=".ashx" type="System.Web.Compilation.WebHandlerBuildProvider"/>
<add extension=".soap" type="System.Web.Compilation.WebServiceBuildProvider"/>
<add extension=".resx" type="System.Web.Compilation.ResXBuildProvider"/>
<add extension=".resources" type="System.Web.Compilation.ResourcesBuildProvider"/>
<add extension=".wsdl" type="System.Web.Compilation.WsdlBuildProvider"/>
<add extension=".xsd" type="System.Web.Compilation.XsdBuildProvider"/>
<add extension=".rdlc" type="Microsoft.Reporting.RdlBuildProvider, Microsoft.ReportViewer.Common, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
</buildProviders>
</compilation>
<>
<authentication mode="Forms">
<>
<forms name=".ASPXUSERDEMO" loginUrl="Login.aspx" protection="All" timeout="30"/>
</authentication>
<>
<authorization>
<allow users="*"/>
<deny users="weipeng"/>
<allow users="aa" roles="aa" />
</authorization>
<>
<globalization requestEncoding="gb2312" responseEncoding="gb2312" fileEncoding="gb2312" />
<>
<sessionState mode="InProc" stateConnectionString="tcpip=127.0.0.1:42424" sqlConnectionString="data source=127.0.0.1;Trusted_Connection=yes" cookieless="false" timeout="20"></sessionState>
<>
<sessionPageState historySize="9"/>
<>
<httpRuntime appRequestQueueLimit="100" executionTimeout="80" maxRequestLength="40960" useFullyQualifiedRedirectUrl="false"/>
<>
<httpModules>
<add name="OutputCache" type="System.Web.Caching.OutputCacheModule" />
<add name="Session" type="System.Web.SessionState.SessionStateModule" />
<add name="WindowsAuthentication" type="System.Web.Security.WindowsAuthenticationModule" />
<add name="FormsAuthentication" type="System.Web.Security.FormsAuthenticationModule" />
<add name="PassportAuthentication" type="System.Web.Security.PassportAuthenticationModule" />
<add name="RoleManager" type="System.Web.Security.RoleManagerModule" />
<add name="UrlAuthorization" type="System.Web.Security.UrlAuthorizationModule" />
<add name="FileAuthorization" type="System.Web.Security.FileAuthorizationModule" />
<add name="AnonymousIdentification" type="System.Web.Security.AnonymousIdentificationModule" />
<>
<add name="UrlRewriter" type="Intelligencia.UrlRewriter.RewriterHttpModule, Intelligencia.UrlRewriter" />
<add name="Profile" type="System.Web.Profile.ProfileModule" />
</httpModules>
<>
<httpHandlers>
<remove verb="*" path="*.asmx"/>
<add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false"/>
<add verb="POST,GET" path="ajaxpro/*.ashx" type="AjaxPro.AjaxHandlerFactory, AjaxPro.2"/>
</httpHandlers>
<>
<httpCookies httpOnlyCookies="false" requireSSL="false"/>
<>
<webServices>
<protocols>
<add/>
</protocols>
</webServices>
<>
<caching>
<cache disableMemoryCollection = "false" disableExpiration = "false" privateBytesLimit = "0" percentagePhysicalMemoryUsedLimit = "90" privateBytesPollTime = "00:02:00"/>
<>
<outputCacheSettings>
<outputCacheProfiles>
<add name="ServerOnly" duration="60" varyByCustom="browser" location="Server" />
</outputCacheProfiles>
</outputCacheSettings>
</caching>
</system.web>
</location>
<>
<system.net>
<>
<mailSettings>
<smtp from="sy">
<network host="Gao" password="" userName="" />
</smtp>
</mailSettings>
<>
<requestCaching disableAllCaching="true"></requestCaching>
<>
<defaultProxy>
<proxy usesystemdefault="True" proxyaddress="http://192.168.1.10:3128" bypassonlocal="True"/>
<bypasslist>
<add address="" />
</bypasslist>
</defaultProxy>
</system.net>
<>
<system.webServer>
<validation validateIntegratedModeConfiguration="false"/>
<modules>
<add name="ScriptModule" preCondition="integratedMode" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</modules>
<handlers>
<remove name="WebServiceHandlerFactory-Integrated"/>
<add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</handlers>
</system.webServer>
<>
<system.web.extensions>
<>
<scripting>
<webServices>
<jsonSerialization maxJsonLength="5000"/>
</webServices>
</scripting>
</system.web.extensions>
<>
<system.serviceModel>
<services>
<service name="WCFStudent.WCFStudentText" behaviorConfiguration="ServiceBehavior">
<>
<endpoint address="" binding="wsHttpBinding" contract="WCFStudent.IStuServiceContract">
<>
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="ServiceBehavior">
<>
<serviceMetadata httpGetEnabled="true"/>
<>
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
<>
<rewriter>
<rewrite url="~/user/u(.+).aspx" to="~/user/index.aspx?r=$1" />
<rewrite url="~/ask/q(.+).aspx" to="~/home/ask/content.aspx?id=$1" />
<rewrite url="~/blog/b(.+).aspx" to="~/home/blog/article.aspx?r=$1" />
<rewrite url="~/news/n(.+).aspx" to="~/home/news/content.aspx?nid=$1" />
<rewrite url="~/default.aspx" to="~/home/ram/net.aspx" />
</rewriter>
</configuration>
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