将 Azure Functions 升级到 5.0：System.UriFormatException

Question

我一直在努力将我们的一个 Azure Functions 实现升级到 .net 5。我已经与恶魔作斗争了，但就像我已经整理出所有配置和依赖注入更改一样，它抛出了一个曲线球对我。在 Main 中的 host.RunAsync 之后，我得到以下异常，我对罪魁祸首有点不知所措。有人运行参与并修复了这个问题吗？

System.UriFormatException
  HResult=0x80131537
  Message=Invalid URI: The hostname could not be parsed.
  Source=System.Private.Uri
  StackTrace:
   at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind)
   at Grpc.Net.Client.GrpcChannel.ForAddress(String address, GrpcChannelOptions channelOptions)
   at Microsoft.Extensions.DependencyInjection.GrpcServiceCollectionExtensions.<>c.<AddGrpc>b__1_1(IServiceProvider p) in D:\a\s\src\DotNetWorker.Grpc\GrpcServiceCollectionExtensions.cs:line 58
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitFactory(FactoryCallSite factoryCallSite, RuntimeResolverContext context)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSiteMain(ServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(ServiceCallSite callSite, RuntimeResolverContext context, ServiceProviderEngineScope serviceProviderEngine, RuntimeResolverLock lockType)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitRootCache(ServiceCallSite singletonCallSite, RuntimeResolverContext context)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSite(ServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, RuntimeResolverContext context)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSiteMain(ServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(ServiceCallSite callSite, RuntimeResolverContext context, ServiceProviderEngineScope serviceProviderEngine, RuntimeResolverLock lockType)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitRootCache(ServiceCallSite singletonCallSite, RuntimeResolverContext context)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSite(ServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, RuntimeResolverContext context)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSiteMain(ServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(ServiceCallSite callSite, RuntimeResolverContext context, ServiceProviderEngineScope serviceProviderEngine, RuntimeResolverLock lockType)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitRootCache(ServiceCallSite singletonCallSite, RuntimeResolverContext context)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSite(ServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitIEnumerable(IEnumerableCallSite enumerableCallSite, RuntimeResolverContext context)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSiteMain(ServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(ServiceCallSite callSite, RuntimeResolverContext context, ServiceProviderEngineScope serviceProviderEngine, RuntimeResolverLock lockType)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitRootCache(ServiceCallSite singletonCallSite, RuntimeResolverContext context)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSite(ServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.Resolve(ServiceCallSite callSite, ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine.<>c__DisplayClass1_0.<RealizeService>b__0(ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.GetService(Type serviceType, ServiceProviderEngineScope serviceProviderEngineScope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService(Type serviceType)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetService[T](IServiceProvider provider)
   at Microsoft.Extensions.Hosting.Internal.Host.<StartAsync>d__9.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.<RunAsync>d__4.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.<RunAsync>d__4.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
   at MySoftware.FunctionApp.Program.<Main>(String[] args)

  This exception was originally thrown at this call stack:
    [External Code]

我的 Program.cs 主要看起来像：

using Microsoft.Extensions.Hosting;
using System.Threading.Tasks;

namespace FunctionApp1
{
    /// <summary>
    /// Entry
    /// </summary>
    public class Program
    {
        static async Task Main(string[] args)
        {
            var host = new HostBuilder()
                .ConfigureFunctionsWorkerDefaults()
                .Build();

            await host.RunAsync();
        }
    }
}

还有我的函数

   using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.Functions.Worker;
using Microsoft.Azure.Functions.Worker.Http;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using System.IO;
using System.Threading.Tasks;

namespace FunctionApp1
{
    /// <summary>
    /// 
    /// </summary>
    public static class Function1
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="req"></param>
        /// <param name="ctx"></param>
        /// <returns></returns>
        [FunctionName("Function1")]
        public static async Task<IActionResult> Run(
            [HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequestData req, FunctionContext ctx)
        {
            ctx.GetLogger("out").LogInformation("C# HTTP trigger function processed a request.");

            string name = req.ReadAsString();

            string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
            dynamic data = JsonConvert.DeserializeObject(requestBody);
            name = name ?? data?.name;

            string responseMessage = string.IsNullOrEmpty(name)
                ? "This HTTP triggered function executed successfully. Pass a name in the query string or in the request body for a personalized response."
                : $"Hello, {name}. This HTTP triggered function executed successfully.";

            return new OkObjectResult(responseMessage);
        }
    }
}

当我使用 func host start 时，我也收到错误消息“未找到工作职能。尝试制作你的工作类和方法 public。”

[2021-04-09T07:37:04.953Z] FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language:python
[2021-04-09T07:37:04.954Z] Reading functions metadata
[2021-04-09T07:37:04.955Z] 0 functions found
[2021-04-09T07:37:04.962Z] 0 functions loaded
[2021-04-09T07:37:04.969Z] Generating 0 job function(s)
[2021-04-09T07:37:04.978Z] No job functions found. Try making your job classes and methods public. If you're using binding extensions (e.g. Azure Storage, ServiceBus, Timers, etc.) make sure you've called the registration method for the extension(s) in your startup code (e.g. builder.AddAzureStorage(), builder.AddServiceBus(), builder.AddTimers(), etc.).
[2021-04-09T07:37:04.983Z] Initializing function HTTP routes
[2021-04-09T07:37:04.985Z] No HTTP routes mapped
[2021-04-09T07:37:04.986Z]
[2021-04-09T07:37:04.994Z] Host initialized (53ms)
[2021-04-09T07:37:04.997Z] Host started (63ms)
[2021-04-09T07:37:04.998Z] Job host started
For detailed output, run func with --verbose flag.

Answer 1

目前，visual studio 等工具对 .net 5 azure function 的支持不是很好。您可以运行您的函数，方法是在 Azure Functions Core Tools.

中使用此命令 func host start

github也有类似的问题，可以参考the issue了解更多详情

Answer 2

我弄了半天才弄明白，但是你要把[FunctionName("Function1")]换成[Function("Function1")]。显然这是在 Azure Functions 3 中发生的变化，但据我所知没有任何地方提到它。

Answer 3

对我来说，这是因为我没有安装 Azure Toolkit for Rider。将其作为插件安装，您就可以开始使用了。

将 Azure Functions 升级到 5.0：System.UriFormatException

Upgrading Azure Functions to 5.0 : System.UriFormatException

asp.net

azure-functions

.net-5