/// <summary>
/// 写入内容
/// </summary>
/// <param name="context">http上下文</param>
/// <param name="basicReturn">基本返回</param>
/// <returns>任务</returns>
protected async Task WriteContent(HttpContext context, BasicReturnInfo basicReturn)
{
context.Response.ContentType = "application/json;charset=UTF-8";
await context.Response.WriteAsync(basicReturn.ToJsonString());
}
/// <summary>
/// 接收消息
/// </summary>
/// <param name="receiveMessageFun">接收消息回调</param>
public void Receive(Func <byte[], byte[]> receiveMessageFun)
{
channel.QueueDeclare(queue: amqpQueue.Queue.Name, durable: amqpQueue.Persistent, exclusive: false, autoDelete: amqpQueue.Queue.AutoDelQueue, arguments: null);
if (amqpQueue.Queue.Qos != null)
{
channel.BasicQos(0, amqpQueue.Queue.Qos.GetValueOrDefault(), false);
}
channel.QueueBind(amqpQueue.Queue.Name, amqpQueue.ExchangeName, amqpQueue.Queue.Name);
var consumer = new EventingBasicConsumer(channel);
channel.BasicConsume(queue: amqpQueue.Queue.Name, autoAck: false, consumer: consumer);
consumer.Received += (model, ea) =>
{
// 错误返回信息
BasicReturnInfo errorReturn = null;
// 返回给客户端的数据
byte[] outData = null;
// 关联ID
string correlationId = null;
IBasicProperties props = null;
IBasicProperties replyProps = null;
try
{
props = ea.BasicProperties;
replyProps = channel.CreateBasicProperties();
replyProps.CorrelationId = props.CorrelationId;
correlationId = props.CorrelationId;
byte[] inData = ea.Body.IsEmpty ? null : ea.Body.ToArray();
try
{
outData = receiveMessageFun(inData);
}
catch (Exception ex)
{
var busEx = AmqpUtil.BuilderBusinessException(ex, null, amqpQueue, log, ex.Message);
ExceptionHandle.Handle(busEx);
log.ErrorAsync("RpcServer回调业务处理出现异常", ex, typeof(RabbitRpcServer).Name, correlationId);
errorReturn = new BasicReturnInfo();
errorReturn.SetFailureMsg("业务处理出现异常", ex.Message);
outData = Encoding.UTF8.GetBytes(errorReturn.ToJsonString());
}
}
catch (Exception ex)
{
log.ErrorAsync("RpcServer接收消息处理出现异常", ex, typeof(RabbitRpcServer).Name, correlationId);
errorReturn = new BasicReturnInfo();
errorReturn.SetFailureMsg("RpcServer接收消息处理出现异常", ex.Message);
outData = Encoding.UTF8.GetBytes(errorReturn.ToJsonString());
}
finally
{
if (props != null && replyProps != null)
{
try
{
channel.BasicPublish(exchange: amqpQueue.ExchangeName, routingKey: props.ReplyTo, basicProperties: replyProps, body: outData);
channel.BasicAck(deliveryTag: ea.DeliveryTag, multiple: false);
}
catch (Exception ex)
{
log.ErrorAsync("RPC服务端回发送给客户端报错，这里忽略", ex, typeof(RabbitRpcServer).Name);
}
}
}
};
}