我正在学习 Azure Functions，并尝试使用 Azure 的表绑定(bind)发布对象。这是我的 Azure 函数的代码:
[FunctionName("Table_CreateTodo")]
public static async Task<IActionResult> Post(
[HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "todo")]
HttpRequest req,
[Table("todos", Connection ="AzureWebJobsStorage")]
IAsyncCollector<TodoTableEntity> todoTable,
ILogger log)
{
try
{
string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
log.LogInformation($"Request Body: \n {requestBody}");
var todoCreate = JsonConvert.DeserializeObject<TodoCreateModel>(requestBody);
var todo = new Todo() { TaskDescription = todoCreate.TaskDescription };
await todoTable.AddAsync(todo.ToTableEntity());
return new OkObjectResult(todo);
}
catch (Exception ex)
{
return new BadRequestObjectResult(ex.ToString());
}
}
当我通过 POSTMAN 向路由提交 POST 请求时，.NET 控制台会抛出以下异常:
[2022-08-19T06:09:00.618Z] Request Body:
[2022-08-19T06:09:00.618Z] {"TaskDescription": "AZURREEE"}
[2022-08-19T06:09:07.492Z] Executed 'Table_CreateTodo' (Failed, Id=334b1470-eda9-47b7-91a2-4766ba7f98b2, Duration=7035ms)
[2022-08-19T06:09:07.493Z] System.Private.CoreLib: Exception while executing function: Table_CreateTodo. Microsoft.Azure.WebJobs.Host: Error while handling parameter todoTable after function returned:. Azure.Core: Retry failed after 4 tries. Retry settings can be adjusted in ClientOptions.Retry. (Connection refused (127.0.0.1:10002)) (Connection refused (127.0.0.1:10002)) (Connection refused (127.0.0.1:10002)) (Connection refused (127.0.0.1:10002)). Azure.Core: Connection refused (127.0.0.1:10002). System.Net.Http: Connection refused (127.0.0.1:10002). System.Net.Sockets: Connection refused.
我可以确认端口 10002 上没有正在运行的进程，因此我不确定问题是什么。我可以确认所有不使用表绑定(bind)的 Azure 函数都可以正常工作。
这是我的 local.settings.json 文件:
{
"IsEncrypted": false,
"Values": {
"AzureWebJobsStorage": "UseDevelopmentStorage=true",
"FUNCTIONS_WORKER_RUNTIME": "dotnet",
"AzureWebJobsSecretStorageType": "files"
}
}
根据我的理解，AzureWebJobsStorage 的值将使用本地表存储，因此我不需要提供到实际数据库的连接字符串。
这是我的 .csproj 文件:
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net6.0</TargetFramework>
<AzureFunctionsVersion>v4</AzureFunctionsVersion>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.NET.Sdk.Functions" Version="4.1.1" />
<PackageReference Include="Microsoft.Azure.WebJobs.Extensions.Tables" Version="1.0.0" />
</ItemGroup>
<ItemGroup>
<None Remove="Models\" />
<None Remove="Microsoft.Azure.WebJobs.Extensions.Storage" />
<None Remove="Microsoft.Azure.WebJobs.Extensions.Tables" />
</ItemGroup>
<ItemGroup>
<None Update="host.json">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</None>
<None Update="local.settings.json">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
<CopyToPublishDirectory>Never</CopyToPublishDirectory>
</None>
</ItemGroup>
<ItemGroup>
<Folder Include="Models\" />
</ItemGroup>
</Project>
任何帮助将不胜感激!我试过running the example from Azure's table binding example here ，但我得到了与上面相同的异常:
System.Private.CoreLib: Exception while executing function: Table_CreateTodo. Microsoft.Azure.WebJobs.Host: Error while handling parameter todoTable after function returned:. Azure.Core: Retry failed after 4 tries. Retry settings can be adjusted in ClientOptions.Retry. (Connection refused (127.0.0.1:10002)) (Connection refused (127.0.0.1:10002)) (Connection refused (127.0.0.1:10002)) (Connection refused (127.0.0.1:10002)). Azure.Core: Connection refused (127.0.0.1:10002). System.Net.Http: Connection refused (127.0.0.1:10002). System.Net.Sockets: Connection refused.
最佳答案
您的连接字符串正在使用本地存储，而您尚未启动docker或 npm。
你可以启动它
docker run -p 10000:10000 -p 10001:10001 -p 10002:10002 \
mcr.microsoft.com/azure-storage/azurite
或 npm
npm install -g azurite
azurite --silent --location c:\azurite --debug c:\azurite\debug.log
关于c# - Azure Function 无法使用表绑定(bind)执行 : connection refused，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/73412660/