我尝试将数据插入事件中心，以便遵循此link在Azure门户中创建免费试用事件中心，并在示例. Net应用程序（引用link）中配置connectionstring、eventHubName
样本代码：

class Program
{
    const string eventHubName = "<eventHubName>";
    const string connectionString = @"<connectionString>";

    public static async Task Main(string[] args)
    {
         await EventHubIngestionAsync();
    }

    public static async Task EventHubIngestionAsync()
    {

        await using (var producerClient = new EventHubProducerClient(connectionString, eventHubName))
        {
           
            int counter = 0;
            for (int i = 0; i < 100; i++)
            {
                int recordsPerMessage = 3;
                try
                {
                    var records = Enumerable
                        .Range(0, recordsPerMessage)
                        .Select(recordNumber => $"{{\"timeStamp\": \"{DateTime.UtcNow.AddSeconds(100 * counter)}\", \"name\": \"{$"name {counter}"}\", \"metric\": {counter + recordNumber}, \"source\": \"EventHubMessage\"}}");
                    
                    string recordString = string.Join(Environment.NewLine, records);

                    EventData eventData = new EventData(Encoding.UTF8.GetBytes(recordString));
                    Console.WriteLine($"sending message {counter}");
                    // Optional "dynamic routing" properties for the database, table, and mapping you created. 
                    //eventData.Properties.Add("Table", "TestTable");
                    //eventData.Properties.Add("IngestionMappingReference", "TestMapping");
                    //eventData.Properties.Add("Format", "json");

                   using EventDataBatch eventBatch = await producerClient.CreateBatchAsync();
                    eventBatch.TryAdd(eventData);
                    IEnumerable<EventData> dd = null;
                    await producerClient.SendAsync(dd);
                }
                catch (Exception exception)
                {
                    Console.ForegroundColor = ConsoleColor.Red;
                    Console.WriteLine("{0} > Exception: {1}", DateTime.Now, exception.Message);
                    Console.ResetColor();
                }

                counter += recordsPerMessage;
            }
        }
    }
}

运行CreateBatchAsync时，获取"由于连接方未正确响应，连接尝试失败"。

我尝试了连接字符串和访问控制方法，得到相同的错误。