这是函数的代码,非常简单:
[FunctionName("negotiate")]
public static SignalRConnectionInfo Run(
[HttpTrigger(AuthorizationLevel.Anonymous)]
HttpRequest req,
[SignalRConnectionInfo(
ConnectionStringSetting = "Endpoint=https://myowntestserver.service.signalr.net;AccessKey=mymaskedaccesskey=;Version=1.0;",
HubName = "tracking")]
SignalRConnectionInfo connectionInfo)
{
return connectionInfo;
}
在 Visual Studio 2017 上运行此代码时,我收到以下错误消息:
[2019-03-27 3:39:14 PM] 错误索引方法“协商”
[2019-03-27 3:39:14 PM] Microsoft.Azure.WebJobs.Host:错误索引方法“协商”。Microsoft.Azure.WebJobs.Host:无法解析属性“SignalRConnectionInfoAttribute.ConnectionStringSetting”的值。确保设置存在并且具有有效值。
local.settings.json 文件如下所示:
{
"IsEncrypted": false,
"Values": {
"AzureWebJobsStorage": "UseDevelopmentStorage=true",
"FUNCTIONS_WORKER_RUNTIME": "dotnet"
}
}
这里是 host.json 文件:
{
"version": "2.0"
}
项目文件包含以下 nuget 包:
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netcoreapp2.2</TargetFramework>
<AzureFunctionsVersion>v2</AzureFunctionsVersion>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.Azure.WebJobs.Extensions.ServiceBus" Version="3.0.3" />
<PackageReference Include="Microsoft.Azure.WebJobs.Extensions.SignalRService" Version="1.0.0" />
<PackageReference Include="Microsoft.NET.Sdk.Functions" Version="1.0.26" />
</ItemGroup>
<ItemGroup>
<None Update="host.json">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</None>
<None Update="local.settings.json">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
<CopyToPublishDirectory>Never</CopyToPublishDirectory>
</None>
</ItemGroup>
</Project>
有了所有这些看起来正确的配置,不知道为什么我们应该得到我上面引用的错误消息。