/// <summary>
/// 这个事件就是用来监听我们一些不可达的消息的内容的：比如某些情况下，如果我们在发送消息时，当前的exchange不存在或者指定的routingkey路由不到，这个时候如果要监听这种不可达的消息，就要使用 return
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void BasicReturnEventHandler(object?o, BasicReturnEventArgs basic)
{
var rc = basic.ReplyCode; //消息失败的code
var rt = basic.ReplyText; //描述返回原因的文本。
var msg = Encoding.UTF8.GetString(basic.Body.ToArray()); //失败消息的内容
//在这里我们可能要对这条不可达消息做处理，比如是否重发这条不可达的消息呀，或者这条消息发送到其他的路由中呀，等等
//System.IO.File.AppendAllText("d:/return.txt", "调用了Return;ReplyCode:" + rc + ";ReplyText:" + rt + ";Body:" + msg);
MQWebApiMsg Data = Newtonsoft.Json.JsonConvert.DeserializeObject <MQWebApiMsg>(msg);
PushErrorEvent?.Invoke(Data);
Log.WriteLine($"异常事件 BasicReturn: ReplyCode:{rc};ReplyText:{rt};Body:{msg},all:{Newtonsoft.Json.JsonConvert.SerializeObject(basic)}");
//Console.WriteLine($"-------- BasicReturn: ReplyCode:{rc};ReplyText:{rt};Body:{msg}");
}
/// <summary>
/// 推送数据
/// Routingkey 的格式 交换机名字:routingKey
/// </summary>
/// <param name="Data"></param>
/// <param name="Routingkey">Routingkey 的格式 交换机名字:routingKey</param>
public void PushData(MQWebApiMsg Data, string Key)
{
string[] keys = Key.Split(':');
if (keys.Length != 2)
{
throw new Exception("MQ Routingkey 格式不正确,");;
}
string ExchangeName = keys[0];
string Routingkey = keys[1];
ChannelPool.AutoChannel(Channel =>
{
Channel.PushMsg(Data, ExchangeName, Routingkey);
});
}
public override Task <NullClass> PushData(MQWebApiMsg request, ServerCallContext context)
{
var data = new MQServer.Model.MQWebApiMsg();
data.Data = request.Data;
data.Host = request.Host;
data.Path = request.Path;
MQService.PushQueueClient.PushData(data, request.Key);
return(Task.FromResult(new NullClass()
{
Res = "ok"
}));
}
public bool Post(MQWebApiMsg Data)
{
if (Data == null || Data.Host == null)
{
return(false);
}
string Url = Path.Combine(Data.Host, Data.Path);
string PostJson = Newtonsoft.Json.JsonConvert.SerializeObject(Data.Data);
string res = HttpHelper.Post(Url, PostJson, requestEncoding: Encoding.UTF8, timeout: Timeout
);
#if DEBUG
Log.WriteLine("完成一条消息推送,线程id:" + System.Threading.Thread.CurrentThread.ManagedThreadId + ",Data:" + Data.Data.ToString());
#endif
return(true);
}
/// <summary>
/// 推送消息
/// </summary>
/// <param name="Key"></param>
/// <param name="request"></param>
public void PushData(string Key, MQWebApiData request)
{
AutoChannelAddress(ChannelAddress =>
{
var Msg = new MQWebApiMsg();
Msg.Data = Newtonsoft.Json.JsonConvert.SerializeObject(request.Data);
Msg.Host = request.Host;
Msg.Path = request.Path;
Msg.Key = Key;
try
{
var GrpcClient = new MQWebApiMsgServerClient(ChannelAddress);
//var time = DateTime.Now.AddSeconds(60);
var reply = GrpcClient.PushData(Msg);
#if DEBUG
Log.WriteLine("成功发射一条消息:" + ChannelAddress.Target.ToString());
#endif
}
catch (Exception ex2)
{
throw;
}
finally
{
}
return(0);
});
return;
}
/// <summary>
/// 再次推送失败消息
/// </summary>
/// <param name="basic"></param>
void PushExceptionMsgAgain(BasicDeliverEventArgs basic, MQWebApiMsg Data)
{
///先作废本次消息
RabbitChannel.BasicReject(deliveryTag: basic.DeliveryTag, false);
if (Data == null)
{
ReceivedErrorEvent?.Invoke(null);
return;
}
if (Data.ExceptionTimes > 2)
{
ReceivedErrorEvent?.Invoke(Data);
Log.WriteLine($"消息失败超过3次,丢弃 routingKey:{basic.RoutingKey}");
return;
}
///失败次数递增
Data.ExceptionTimes += 1;
this.PushMsg(Data, basic.Exchange, basic.RoutingKey);
return;
}