c# - 在所有 Azure Function 调用中强制执行文化不起作用

Question

我正在尝试在 Azure 函数中全面实现特定文化(EN-US)

为此，我有一个基类

public class MyFunction
{
    protected void EnforceCulture(string culture = Cultures.UK)
    {
        CultureInfo.CurrentCulture.ClearCachedData();
        Thread.CurrentThread.CurrentCulture = new CultureInfo(culture, false);
        CultureInfo.CurrentCulture = Thread.CurrentThread.CurrentCulture;
        CultureInfo.DefaultThreadCurrentCulture = Thread.CurrentThread.CurrentCulture;
        Thread.CurrentThread.CurrentUICulture = Thread.CurrentThread.CurrentCulture;
        CultureInfo.CurrentUICulture = Thread.CurrentThread.CurrentUICulture;
        CultureInfo.DefaultThreadCurrentUICulture = Thread.CurrentThread.CurrentUICulture;
    }

    protected async Task<IActionResult> ExecuteWithAuthorization(HttpRequest req, Func<Task<IActionResult>> func)
    {
        if (req.Unauthorized())
        {
            return new UnauthorizedResult();
        }
     
        //Request is authorized so enforce culture and call logic
        EnforceCulture(Cultures.USA); 
        return await func();
    }
}

我按照下面的逻辑在我的函数中使用它

    [FunctionName("my-function")]
    [Authorize]
    public async Task<IActionResult> MyFunctionAsync(
        [HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "my-route")]
        HttpRequest req)
    {
        var response = await ExecuteWithAuthorization(req, async () =>
        {                
            var result = new MyResult()
            {  
              Test = DateTime.Now.ToString("G");
            }

            var okResult = (IActionResult)new OkObjectResult(result);
            return okResult;
        });

        return response;
    }

当我查看 result.Test 时，我希望它将日期显示为美国日期，因为我已强制文化为美国，但它显示为英国

我做错了什么？

我认为问题可能是等待操作在其自己的线程上运行，该线程可能没有从主线程派生的信息(即区域性)。如果是这种情况我该如何解决？

保罗

Answer 1

Azure Functions 不会提供内置方法来更改区域性，需要将以下代码放入 starting of the function

using System.Threading;
using System.Globalization;

//......

string culture = "en-US";
CultureInfo CI = new CultureInfo(culture);
Thread.CurrentThread.CurrentUICulture = CI;

对于 Azure Functions，您可以设置 time zone在应用程序设置中:

WEBSITE_TIME_ZONE=America

对于函数需要使用以下代码创建启动类

[assembly: FunctionsStartup(typeof(Startup))]
namespace FunctionApp
{
    public class Startup : IWebJobsStartup
    {
        public void Configure(IWebJobsBuilder app)
        {
            var cultureInfo = new CultureInfo("en-US");
            CultureInfo.DefaultThreadCurrentCulture = cultureInfo;
            CultureInfo.DefaultThreadCurrentUICulture = cultureInfo;
            Thread.CurrentThread.CurrentCulture = cultureInfo;
            Thread.CurrentThread.CurrentUICulture = cultureInfo;
        }
    }
}

如需进一步引用，请查看 SO