如何覆盖azurewebjobsstorage的ConnectionsTring值为.NET Core函数应用程序中的新值

Question

我必须根据某种条件指定存储帐户连接属性，

例如：

if(condition=true)
[StorageAccount("ConnectionString1")]
else
[StorageAccount("ConnectionString2")]

我们是否有一些条件属性可以在.NET中实现此目标？

Answer 1

我为覆盖Azure函数应用程序存储帐户所做的解决方法之一是：

1. 创建一个.NET Core 6 Azure函数应用程序和一个额外的存储帐户，其中两个存储帐户连接字符串都在我的函数应用程序中注明local.settings.json文件如下：

{
    "IsEncrypted": false,
  "Values": {
    "AzureWebJobsStorage": "Get_Conn_String_from_AzureStorageAcc_AccessKeys",
    "FUNCTIONS_WORKER_RUNTIME": "dotnet",
    "AzureStorageAccount02": "<Get_Conn_String_from_AzureStorageAcc_AccessKeys>"
  }
}

2. 要根据Azure函数的条件覆盖不同的存储帐户，我写了以下代码：

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

namespace KrishNet6CoreFunctionApp
{
    public static class Function1
    {
        [FunctionName("Function1")]
        public static async Task<IActionResult> Run(
            [HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] HttpRequest req,
            ILogger log)
        {
            log.LogInformation("C# HTTP trigger function processed a request.");

            string name = req.Query["name"];

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

            if (name == "HariKrishna")
            {
                var constring1 = Environment.GetEnvironmentVariable("AzureWebJobsStorage");
                log.LogInformation("Function Execution logs will be stored in 1st storage account.");
            }
            else
            {
                var constring1 = Environment.GetEnvironmentVariable("AzureStorageAccount02");
                log.LogInformation("Function Execution logs will be stored in 2nd storage account.");
            }


                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);
        }
    }
}

结果：

如果参数名称值有所操作/活动：