c# - 如何从.net core应用程序向服务总线主题发送消息

Question

我使用.net core应用程序创建了API，该应用程序用于将一组属性发送到SQL DB，并且还应将消息的一个副本发送到azure服务总线主题。截至目前.net core 不支持服务总线。请分享您的想法。如何使用 .net core 应用程序将消息发送到服务总线主题？

public class CenterConfigurationsDetails
{

    public Guid Id { get; set; } = Guid.NewGuid();

    public Guid? CenterReferenceId { get; set; } = Guid.NewGuid();

    public int? NoOfClassRooms { get; set; }

    public int? OtherSpaces { get; set; }

    public int? NoOfStudentsPerEncounter { get; set; }

    public int? NoOfStudentsPerComplimentaryClass { get; set; }
}

    // POST api/centers/configurations
    [HttpPost]
    public IActionResult Post([FromBody]CenterConfigurationsDetails centerConfigurationsDetails)
    {
        if (centerConfigurationsDetails == null)
        {
            return BadRequest();
        }
        if (_centerConfigurationModelCustomValidator.IsValid(centerConfigurationsDetails, ModelState))
        {
            var result = _centerConfigurationService.CreateCenterConfiguration(centerConfigurationsDetails);

            return Created($"{Request.Scheme}://{Request.Host}{Request.Path}", result);
        }
        var messages = ModelState.Values.SelectMany(v => v.Errors).Select(e => e.ErrorMessage).ToList();
        return BadRequest(messages);
    }

Answer 1

使用.Net Core发送消息非常容易。有一个专用的 nuget 包:Microsoft.Azure.ServiceBus。

示例代码如下所示:

public class MessageSender
{
    private const string ServiceBusConnectionString = "Endpoint=sb://bialecki.servicebus.windows.net/;SharedAccessKeyName=RootManageSharedAccessKey;SharedAccessKey=[privateKey]";

    public async Task Send()
    {
        try
        {
            var productRating = new ProductRatingUpdateMessage { ProductId = 123, RatingSum = 23 };
            var message = new Message(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(productRating)));

            var topicClient = new TopicClient(ServiceBusConnectionString, "productRatingUpdates");
            await topicClient.SendAsync(message);
        }
        catch (Exception e)
        {
            Console.WriteLine(e);
        }
    }
}

有关完整示例，您可以查看我的博客文章:http://www.michalbialecki.com/2017/12/21/sending-a-azure-service-bus-message-in-asp-net-core/

还有一个关于接收消息的:http://www.michalbialecki.com/2018/02/28/receiving-messages-azure-service-bus-net-core/