如何将消息从一个节点发送到另一个节点
本文关键字:节点 一个 另一个 消息 | 更新日期: 2023-09-27 18:13:22
我想发送eventhub客户,然后将其下载到天气等样本数据并发送另一个eventhub。我的代码不能正常工作。没有错误,但是数据没有发送到数据库。
public Task ProcessEventsAsync(PartitionContext context, IEnumerable<EventData> messages)
{
try
{
foreach (EventData message in messages)
{
string data = Encoding.UTF8.GetString(message.GetBytes());
NewClient Client = JsonConvert.DeserializeObject<NewClient>(data);
if (Client.City != null && Client.Street != null )
{
GoogleGeoApi GeoClient = new GoogleGeoApi();
GeoClient.SetCoordinates(Client.City, Client.Street);
WeatherApi WeatherApiobject = new WeatherApi();
WeatherApiobject.GetJson(GeoClient.convertlat, GeoClient.convertlng);
string weatherdata = WeatherApiobject.sendEvent;
SenderEvent NewSenderEvent = new SenderEvent();
NewSenderEvent.DataSender(weatherdata, ConstFile.WeatherEventHubName);
//StartH(ConstFile.WeatherEventHubName).Wait();
}
Interlocked.Increment(ref this.totalMessages);
this.LastMessageOffset = message.Offset;
}
if (this.IsClosed)
{
this.IsReceivedMessageAfterClose = true;
}
if (this.checkpointStopWatch.Elapsed > TimeSpan.FromMinutes(1))
{
lock (this)
{
this.checkpointStopWatch.Reset();
return context.CheckpointAsync();
}
}
}
catch (Exception ex)
{
Console.WriteLine("{0} > Event Hub Exception: {1}", DateTime.Now, ex.Message);
}
return Task.FromResult<object>(null);
}
我将添加我的接收器甚至看起来像这样:https://code.msdn.microsoft.com/Service-Bus-Event-Hub-45f43fc3/view/SourceCode内容
你可以使用流分析很容易做到这一点!你的第一个事件中心是流分析的输入。然后你可以对流写一个查询(Select * from [Input1]…这会让你得到一切)。您可以将流输出回另一个Event Hub。
public class SenderEvent
{
public void DataSender(string data, string eventhubname)
{
var eventhubclient = EventHubClient.CreateFromConnectionString(ConstFile.eventHubConnectionString, eventhubname);
EventData data1 = new EventData(Encoding.UTF8.GetBytes(data));
eventhubclient.Send(data1);
}
private static async Task StartHost(string eventHubName)
{
string eventProcessorHostName = "1";
string storageConnectionString = string.Format("DefaultEndpointsProtocol=https;AccountName={0};AccountKey={1}", ConstFile.storageAccountName, ConstFile.storageAccountKey);
host = new EventProcessorHost(
eventProcessorHostName,
eventHubName,
ConstFile.ConsumerGroup,
ConstFile.eventHubConnectionString,
storageConnectionString, eventHubName.ToLowerInvariant());
factory = new DemoEventProcessorFactory(eventProcessorHostName);
try
{
var options = new EventProcessorOptions();
options.ExceptionReceived += (sender, e) => { Console.WriteLine(e.Exception); };
await host.RegisterEventProcessorFactoryAsync(factory);
}
catch (Exception exception)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("{0} > Exception: {1}", DateTime.Now.ToString(), exception.Message);
Console.ResetColor();
}
}
}
}
这取决于:
- 如果你的事件中心是低延迟-你可以使用事件中心触发器(azure函数,该函数将在事件中心接收到新的事件)。在你的azure函数中,你使用的代码如示例
-
如果你有很多事件-你可以尝试azure流分析系统过滤出你的天气数据,并将其发送到不同的活动中心。您可以像这样构建一个管道:
EventHub1 -> AzureStreamAnalytics -> EventHub2