我正在尝试通过Web Api（在不同的域中）将文件从Web App上传到Azure存储。即使我在Web Api中增加maxRequest长度，我也会遇到异常413：一旦我尝试上传超过4mb的文件，请求实体就太大了。我可以设置Azure存储中的任何限制来解决此问题吗？
public string UploadFromByteArray(Byte[] fileStream, string filename)
{
try
{
ConfigureCors(account);
}
catch (Exception ex)
{
//throw;
}
// set the content type to image
//blob.Properties.ContentType = "image/pjpeg";
//blob.Metadata.Add("ModelName", Guid.NewGuid().ToString());
//blob.SetMetadata();
var permissions = BlobContainer.GetPermissions();
permissions.PublicAccess = BlobContainerPublicAccessType.Blob;
BlobContainer.SetPermissions(permissions);
CloudBlockBlob blob = BlobContainer.GetBlockBlobReference(filename);
blob.UploadFromByteArray(fileStream, 0, fileStream.Length);
return blob.Uri.AbsoluteUri;
}
private void ConfigureCors(Microsoft.WindowsAzure.Storage.CloudStorageAccount storageAccount)
{
try
{
var blobClient = storageAccount.CreateCloudBlobClient();
ServiceProperties blobServiceProperties = new ServiceProperties()
{
HourMetrics = null,
MinuteMetrics = null,
Logging = null,
};
blobServiceProperties.Cors.CorsRules.Add(new CorsRule()
{
AllowedHeaders = new List<string>() { "*" },
AllowedMethods = CorsHttpMethods.Put | CorsHttpMethods.Get | CorsHttpMethods.Head | CorsHttpMethods.Post,
AllowedOrigins = new List<string>() { "*" },
ExposedHeaders = new List<string>() { "*" },
MaxAgeInSeconds = 3600 // 30 minutes
});
blobClient.SetServiceProperties(blobServiceProperties);
}
catch (Exception ex)
{
throw;
}
}
<?xml version="1.0" encoding="utf-8"?>
<!--
For more information on how to configure your ASP.NET application, please visit
http://go.microsoft.com/fwlink/?LinkId=301879
-->
<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>
//
//
</connectionStrings>
<appSettings>
//
</appSettings>
<system.web>
<authentication mode="None" />
<compilation debug="true" targetFramework="4.5" />
<httpRuntime targetFramework="4.5" maxRequestLength="102400" executionTimeout="2100" />
</system.web>
<system.webServer>
<security>
<requestFiltering>
<!-- 100 MB in bytes -->
<requestLimits maxAllowedContentLength="104857600" maxQueryString="104857600" />
</requestFiltering>
</security>
<modules>
<remove name="FormsAuthentication" />
</modules>
<handlers>
<remove name="ExtensionlessUrlHandler-Integrated-4.0" />
<remove name="OPTIONSVerbHandler" />
<remove name="TRACEVerbHandler" />
<add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
</handlers>
</system.webServer>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="Microsoft.Owin.Security" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="0.0.0.0-3.0.1.0" newVersion="3.0.1.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Microsoft.Owin.Security.OAuth" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="0.0.0.0-3.0.1.0" newVersion="3.0.1.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Microsoft.Owin.Security.Cookies" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="0.0.0.0-3.0.1.0" newVersion="3.0.1.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Microsoft.Owin" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="0.0.0.0-3.0.1.0" newVersion="3.0.1.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Newtonsoft.Json" culture="neutral" publicKeyToken="30ad4fe6b2a6aeed" />
<bindingRedirect oldVersion="0.0.0.0-7.0.0.0" newVersion="7.0.0.0" />
</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.Mvc" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
</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.Http" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Microsoft.Data.Edm" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.6.4.0" newVersion="5.6.4.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Microsoft.Data.Services.Client" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.6.4.0" newVersion="5.6.4.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Microsoft.Data.OData" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.6.4.0" newVersion="5.6.4.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Net.Http.Formatting" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Ninject" publicKeyToken="c7192dc5380945e7" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-3.2.0.0" newVersion="3.2.0.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="mssqllocaldb" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
<system.codedom>
<compilers>
<compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:6 /nowarn:1659;1699;1701" />
<compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:14 /nowarn:41008 /define:_MYTYPE=\"Web\" /optionInfer+" />
</compilers>
</system.codedom>
</configuration>
答案 0 :(得分：0)
Azure存储限制了您可以上传的blob的大小。所有细节都可以在文档here中找到，但我摘录了相关部分：
通过Put Blob创建的块blob的最大大小为64 MB。如果blob大于64 MB，则必须将其作为一组块上载。有关更多信息，请参阅Put Block和Put Block List操作。如果您将blob作为一组块上传，则无需调用Put Blob。
如果您尝试上载大于64 MB的块blob或大于1 TB的页blob，则该服务将返回状态码413（请求实体太大）。 Blob服务还返回有关响应中错误的其他信息，包括允许的最大blob大小（以字节为单位）。
答案 1 :(得分：0)
行。我可以通过将SingleBlobUploadTresholdInBytes设置为max来解决我的问题。值。不确定这是否是正确的解决方案。这是参考。 https://msdn.microsoft.com/en-us/library/microsoft.windowsazure.storage.blob.blobrequestoptions.singleblobuploadthresholdinbytes(v=azure.10).aspx
BlobRequestOptions options = new BlobRequestOptions();
options.SingleBlobUploadThresholdInBytes = 67108860;
blob.UploadFromByteArray(fileStream, 0, fileStream.Length, options:options);