目前我正在尝试添加 ILogger
或 ILogger<>
到 Azure Durable Function,以便在 Activity Functions 中使用日志记录。
登录编排函数工作正常,并注入(inject)方法本身,但尝试为 ILogger
注入(inject)构造函数总是导致空异常。
builder.Services.AddLogging();
当添加到启动文件(Bootstrapper)时,上述内容似乎不起作用,并且以下变体也不起作用:
builder.Services.AddSingleton(typeof(ILogger<>), typeof(Logger<>));
有人解决了这个问题吗?
最佳答案
从您的启动文件中删除以下任一行:
builder.Services.AddLogging();
builder.Services.AddSingleton(typeof(ILogger<>), typeof(Logger<>));
然后,无论您在哪里注入(inject)
ILogger
, 添加 type
使用 ILogger<T>
注入(inject)您的记录器IE:public class Function1
{
private readonly ILogger _logger;
public Function1(ILogger<Function1> logger)
{
_logger = logger;
}
[FunctionName("Function1")]
public async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req)
{
_logger.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;
return name != null
? (ActionResult)new OkObjectResult($"Hello, {name}")
: new BadRequestObjectResult("Please pass a name on the query string or in the request body");
}
}
关于c# - ILogger 未注入(inject) Durable Functions v2.0,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/58752340/