Question

我创建了将日志保存到azure表的代码。如果它存在，我会覆盖ActivateOptions方法来创建表。

public override async void ActivateOptions()
        {
            base.ActivateOptions();

            CloudStorageAccount storageAccount = CloudStorageAccount.Parse
                (CloudConfigurationManager.GetSetting("StorageConnectionString"));
            _tableClient = storageAccount.CreateCloudTableClient();

            await CraeteTablesIfNotExist();
        }

        private async Task CraeteTablesIfNotExist()
        {
            CloudTable logCloudTable = _tableClient.GetTableReference(TableName);
            await logCloudTable.CreateIfNotExistsAsync();
        }

将消息保存到blob存储的代码：

protected override async void Append(LoggingEvent loggingEvent)
        {
            try
            {
                CloudTable cloudTable = _tableClient.GetTableReference(TableName);
                TableBatchOperation tableBatchOperation = new TableBatchOperation();

                tableBatchOperation.InsertOrReplace(new LogEntry($"{DateTime.UtcNow:yyyy-MM}",
                    $"{DateTime.UtcNow:dd HH:mm:ss.fff}-{Guid.NewGuid()}")
                {
                    LoggerName = loggingEvent.LoggerName,
                    Message = loggingEvent.RenderedMessage
                });

                await cloudTable.ExecuteBatchAsync(tableBatchOperation);
            }
            catch (DataServiceRequestException drex)
            {
                ErrorHandler.Error("Couldwrite log entry", drex);
            }
            catch (Exception ex)
            {
                ErrorHandler.Error("Exception log entry", ex);
            }
        }

它不起作用！我不知道为什么，但如果我将代码从ActivateOptions移动到构造函数表创建成功。下面的代码运行我的ActivateOptions方法并记录一条消息：

[TestFixture]
public class Log4NetHandler : TableStorage
{
    private TableStorage _storage;

    [SetUp]
    public void Init()
    {
        _storage = new TableStorage();
        _storage.ActivateOptions();
        BasicConfigurator.Configure(_storage);
    }

    [Test]
    public void CheckLogger()
    {
        Append(new LoggingEvent(new LoggingEventData
        {
            LoggerName = "Taras",
            Message = "Message"
        }));
    }
}

我不明白为什么如果我在Azure中运行ActivateOptions方法表没有创建？

Answer 1

您可以尝试在没有异步调用的情况下实现ActivateOptions方法吗？我的旧代码几乎与你的代码完全相同。

Potato

Azure表和log4net

1 个答案: