.net5上的函数：未找到作业函数。试着公开你的作业类和方法

Question

我正在探索在.net5上运行函数应用程序。这是我到目前为止所做的。

下面是新的< code>Program类，它取代了< code>Startup类:

public static class Program
{
    private static Task Main(string[] args)
    {
        IHost host = new HostBuilder()
            .ConfigureAppConfiguration(configurationBuilder => { configurationBuilder.AddCommandLine(args); })
            .ConfigureFunctionsWorkerDefaults()
            .ConfigureServices(services =>
            {
                // Add Logging
                services.AddLogging();

                // Add HttpClient
                services.AddHttpClient();

                // Add Custom Services
            })
            .Build();

        return host.RunAsync();
    }
}

我还有一个非常简单的HTTP触发函数：

public sealed class StorageAccountsFunction
{
    private readonly ILogger<StorageAccountsFunction> m_logger;

    public StorageAccountsFunction(ILogger<StorageAccountsFunction> logger)
    {
        m_logger = logger;
    }

    [Function("v1-get-storage-accounts")]
    public HttpResponseData GetAsync
    (
        [HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "api/v1/storage-accounts")] 
        HttpRequestData httpRequestData, 
        FunctionContext context
    )
    {
        return httpRequestData.CreateResponse(System.Net.HttpStatusCode.OK);
    }
}

我已经修改了我的 local.settings.json，以指示函数必须在隔离模式下运行：

{
    "IsEncrypted": false,
    "Values": {
        "AzureWebJobsStorage": "",
        "FUNCTIONS_WORKER_RUNTIME": "dotnet-isolated"
    }
}

我使用以下参数启动函数：

func host start --pause-on-error --verbose --dotnet-isolated-debug

问题

当我启动应用程序时，我收到以下警告消息:

[2021-07-08T13:13:54.813Z] Loading functions metadata
[2021-07-08T13:13:54.814Z] Reading functions metadata
[2021-07-08T13:13:54.815Z] 0 functions found
[2021-07-08T13:13:54.841Z] 0 functions loaded
[2021-07-08T13:13:54.868Z] Generating 0 job function(s)
[2021-07-08T13:13:54.898Z] 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.).

我相信我在上运行函数时遵循了说明。net5处于隔离进程中。我错过了什么？

更新

以下是版本信息：

Core Tools Version:       3.0.3568 Commit hash: e30a0ede85fd498199c28ad699ab2548593f759b  (64-bit)
Function Runtime Version: 3.0.15828.0

Answer 1

我不能100%确定罪魁祸首是什么，但我现在让它工作了。我已经更新了。Net到最新的net5SDK（5.0.301）。

然后我意识到我的＜code＞local.settings。json文件缺少一些信息，我认为最重要的是FUNCTIONS_EXTENSION_VERSION字段：

{
    "IsEncrypted": false,
    "Values": {
        "AzureWebJobsStorage": "UseDevelopmentStorage=true",
        "FUNCTIONS_WORKER_RUNTIME": "dotnet-isolated",
        "FUNCTIONS_EXTENSION_VERSION": "~3"
    },
    "Host": {
        "LocalHttpPort": 7072,
        "CORS": "*"
    }
}

下面是输出：

[2021-07-10T12:53:30.478Z] EnvironmentVariable FUNCTIONS_WORKER_RUNTIME: dotnet-isolated
[2021-07-10T12:53:30.478Z] EnvironmentVariable FUNCTIONS_WORKER_RUNTIME_VERSION: 
[2021-07-10T12:53:30.478Z] Added WorkerConfig for language: dotnet-isolated
[2021-07-10T12:53:30.479Z] Reading functions metadata
[2021-07-10T12:53:30.480Z] 0 functions found
[2021-07-10T12:53:30.489Z] 1 functions loaded
[2021-07-10T12:53:30.506Z] Adding Function descriptor provider for language dotnet-isolated.
[2021-07-10T12:53:30.508Z] Creating function descriptors.
[2021-07-10T12:53:30.563Z] Function descriptors created.
[2021-07-10T12:53:30.572Z] Generating 1 job function(s)

更新

我最终遇到了同样的问题，需要我添加Microsoft.Azure.Functions.Worker.Sdk包并更新. csproj文件以包含以下行：

<OutputType>Exe</OutputType>