关于利用浏览器缓存有几个问题,但我没有发现任何有用的方法来在ASP中实现这一点.NET应用程序.谷歌的Pagespeed告诉我们这是性能最大的问题.
<system.webServer>
<staticContent>
<!--<clientCache cacheControlMode="UseExpires"
httpExpires="Fri, 24 Jan 2014 03:14:07 GMT" /> -->
<clientCache cacheControlMode="UseMaxAge" cacheControlMaxAge="7.24:00:00" />
</staticContent>
</system.webServer>
注释代码有效.我可以将expire header设置为将来某个特定的时间,但无法将cacheControlMaxAge
设置为从现在开始缓存静态内容的天数.它不起作用.我的问题是:
我该怎么做?
在Web配置中设置此代码后,我得到72页的速度(之前是71页).50个文件未缓存.(现在49岁)我想知道为什么,我刚刚意识到实际上缓存了一个文件(SVG文件).不幸的是,png和jpg文件不是. 这是我的web.config美元
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="exceptionManagement" type="Microsoft.ApplicationBlocks.ExceptionManagement.ExceptionManagerSectionHandler,Microsoft.ApplicationBlocks.ExceptionManagement" />
<section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E34" requirePermission="false" allowDefinition="Everywhere" />
<sectionGroup name="elmah">
<section name="security" requirePermission="false" type="Elmah.SecuritySectionHandler, Elmah" />
<section name="errorLog" requirePermission="false" type="Elmah.ErrorLogSectionHandler, Elmah" />
<section name="errorMail" requirePermission="false" type="Elmah.ErrorMailSectionHandler, Elmah" />
<section name="errorFilter" requirePermission="false" type="Elmah.ErrorFilterSectionHandler, Elmah" />
</sectionGroup>
</configSections>
<exceptionManagement mode="off">
<publisher mode="off" assembly="Exception" type="blabla.ExceptionHandler.ExceptionDBPublisher" connString="server=188......;database=blabla;uid=blabla;pwd=blabla; " />
</exceptionManagement>
<location path="." inheritInChildApplications="false">
<system.web>
<httpHandlers>
<add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler,System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e34" validate="false" />
<add verb="GET" path="Image.ashx" type="blabla.WebComponents.ImageHandler, blabla/>"
<add verb="*" path="*.aspx" type="System.Web.UI.PageHandlerFactory" />
<add verb="*" path="*.jpg" type="System.Web.StaticFileHandler" />
<add verb="GET" path="*.js" type="System.Web.StaticFileHandler" />
<add verb="*" path="*.gif" type="System.Web.StaticFileHandler" />
<add verb="GET" path="*.css" type="System.Web.StaticFileHandler" />
</httpHandlers>
<compilation defaultLanguage="c#" targetFramework="4.5.1" />
<trace enabled="false" requestLimit="100" pageOutput="true" traceMode="SortByTime" localOnly="true"/>
<authentication mode="Forms">
<forms loginUrl="~/user/login.aspx">
<credentials passwordFormat="Clear">
<user name="blabla" password="blabla" />
</credentials>
</forms>
</authentication>
<authorization>
<allow users="*" />
</authorization>
<sessionState mode="InProc" stateConnectionString="tcpip=127.0.0.1:42424" sqlConnectionString="data source=127.0.0.1;Trusted_Connection=yes" cookieless="false" timeout="20" />
<globalization requestEncoding="utf-8" responseEncoding="utf-8" culture="en-GB" uiCulture="en-GB" />
<xhtmlConformance mode="Transitional" />
<pages controlRenderingCompatibilityVersion="4.5" clientIDMode="AutoID">
<namespaces>
</namespaces>
<controls>
<add assembly="Microsoft.AspNet.Web.Optimization.WebForms" namespace="Microsoft.AspNet.Web.Optimization.WebForms" tagPrefix="webopt" />
</controls>
</pages>
<webServices>
<protocols>
<add name="HttpGet" />
<add name="HttpPost" />
</protocols>
</webServices>
</system.web>
</location>
<appSettings>
</appSettings>
<connectionStrings>
</connectionStrings>
<system.web.extensions>
<scripting>
<webServices>
<jsonSerialization maxJsonLength="200000" />
</webServices>
</scripting>
</system.web.extensions>
<startup>
<supportedRuntime version="v2.0.50727" />
<supportedRuntime version="v1.1.4122" />
<supportedRuntime version="v1.0.3705" />
</startup>
<system.webServer>
<rewrite>
<providers>
<provider name="ReplacingProvider" type="ReplacingProvider, ReplacingProvider, Version=1.0.0.0, Culture=neutral, PublicKeyToken=5ab632b1f332b247">
<settings>
<add key="OldChar" value="_" />
<add key="NewChar" value="-" />
</settings>
</provider>
<provider name="FileMap" type="DbProvider, Microsoft.Web.Iis.Rewrite.Providers, Version=7.1.761.0, Culture=neutral, PublicKeyToken=0525b0627da60a5e">
<settings>
<add key="ConnectionString" value="server=;database=blabla;uid=blabla;pwd=blabla;App=blabla"/>
<add key="StoredProcedure" value="Search.GetRewriteUrl"/>
<add key="CacheMinutesInterval" value="0"/>
</settings>
</provider>
</providers>
<rewriteMaps configSource="rewritemaps.config" />
<rules configSource="rewriterules.config" />
</rewrite>
<modules>
<remove name="ScriptModule" />
<add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3456AD264E35" />
<add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah" preCondition="managedHandler" />
<add name="ErrorMail" type="Elmah.ErrorMailModule, Elmah" preCondition="managedHandler" />
<add name="ErrorFilter" type="Elmah.ErrorFilterModule, Elmah" preCondition="managedHandler" />
</modules>
<handlers>
<add name="Web-JPG" path="*.jpg" verb="GET,HEAD,POST" modules="IsapiModule" scriptProcessor="C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" resourceType="Unspecified" preCondition="classicMode,runtimeVersionv4.0,bitness64" />
<add name="Web-CSS" path="*.css" verb="GET,HEAD,POST" modules="IsapiModule" scriptProcessor="C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" resourceType="Unspecified" preCondition="classicMode,runtimeVersionv4.0,bitness64" />
<add name="Web-GIF" path="*.gif" verb="GET,HEAD,POST" modules="IsapiModule" scriptProcessor="C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" resourceType="Unspecified" preCondition="classicMode,runtimeVersionv4.0,bitness64" />
<add name="Web-JS" path="*.js" verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" resourceType="Unspecified" preCondition="classicMode,runtimeVersionv4.0,bitness64" />
</handlers>
<validation validateIntegratedModeConfiguration="false" />
<httpErrors errorMode="DetailedLocalOnly" existingResponse="Auto">
<remove statusCode="404" subStatusCode="-1"/>
<remove statusCode="500" subStatusCode="-1"/>
<error statusCode="404" path="error404.htm" responseMode="File"/>
<error statusCode="500" path="error.htm" responseMode="File"/>
</httpErrors>
</system.webServer>
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="soapBinding_AdriagateService" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="2147483647" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true" messageEncoding="Text">
<readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
<security mode="None" />
</binding>
</basicHttpBinding>
<netTcpBinding>
<binding name="NetTcpBinding_ITravellerService" closeTimeout="00:10:00" openTimeout="00:10:00" sendTimeout="00:10:00" maxReceivedMessageSize="2147483647" maxBufferPoolSize="2147483647">
<readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
<security mode="None" />
</binding>
</netTcpBinding>
</bindings>
<client>
<endpoint address="blabla" bindingConfiguration="soapBinding_blabla" contract="" Address="blabla" name="blabla" />
<endpoint address="blabla" binding="basicHttpBinding" bindingConfiguration="soapBinding_IImagesService"
contract="ImagesService.IImagesService" name="soapBinding_IImagesService"/>
<identity>
<servicePrincipalName value="blabla"/>
</identity>
</endpoint>
</client>
</system.serviceModel>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-1.5.2.14234" newVersion="1.5.2.14234" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-4.5.0.0" newVersion="4.5.0.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
<system.web>
<httpModules>
<add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah" />
<add name="ErrorMail" type="Elmah.ErrorMailModule, Elmah" />
<add name="ErrorFilter" type="Elmah.ErrorFilterModule, Elmah" />
</httpModules>
</system.web>
<elmah>
<security allowRemoteAccess="false" />
</elmah>
<location path="elmah.axd" inheritInChildApplications="false">
<system.web>
<httpHandlers>
<add verb="POST,GET,HEAD" path="elmah.axd" type="Elmah.ErrorLogPageFactory, Elmah" />
</httpHandlers>
</system.web>
<system.webServer>
<handlers>
<add name="ELMAH" verb="POST,GET,HEAD" path="elmah.axd" type="Elmah.ErrorLogPageFactory, Elmah" preCondition="integratedMode" />
</handlers>
</system.webServer>
</location>
</configuration>
EDIT:个 如果我设置了确切的到期日期,则缓存可以工作,但不适用于jpg、gif……仅适用于png.
EDIT2:
<clientCache cacheControlCustom="public"
cacheControlMode="UseMaxAge" cacheControlMaxAge="7.00:00:00" />
缓存正在工作,但是still不适用于jpeg和gif;它只适用于svg和png.