private static void Read(IAsyncResult ar)
{
try
{
var offset = 0;
var rxbytes = stream.EndRead(ar);
if (rxbytes > 0)
{
stream.BeginRead(tcpdata, 0, tcpdata.Length, Read, null);
LogHelper.Log("TcpClient Recv: [" + LogHelper.Logdata(tcpdata, offset, rxbytes - offset) + "]");
TcpServerHelper.Write(tcpdata, offset, rxbytes - offset);
SerialPortHelper.Write(tcpdata, offset, rxbytes - offset);
}
if (rxbytes == 0)
{
LogHelper.Log("TcpClient Client closed");
OnConnectClosed();
}
}
catch (Exception e)
{
if (e is ObjectDisposedException)
{
LogHelper.Log("TcpClient Connection closed");
}
else if (e is IOException && e.Message.Contains("closed"))
{
LogHelper.Log("TcpClient Connection closed");
}
else
{
LogHelper.Log("TcpClient Exception: " + e.Message);
}
OnConnectClosed();
}
}
/// <summary>
/// 接收到消息
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void MqttClient_ApplicationMessageReceived(object sender, MqttApplicationMessageReceivedEventArgs e)
{
Dictionary <string, object> json = Get_payload(e.ApplicationMessage.Payload);
string topic = e.ApplicationMessage.Topic;
string data = Encoding.UTF8.GetString(e.ApplicationMessage.Payload);
LogHelper.Log("mqtt recv:topic: " + e.ApplicationMessage.Topic.ToString() + " payload: " + data);
Regex r_subtopic = new Regex(subtopic); // 定义一个Regex对象实例
Match m_subtopic = r_subtopic.Match(e.ApplicationMessage.Topic); // 在字符串中匹配
if (m_subtopic.Success)
{
SerialPortHelper.Write(e.ApplicationMessage.Payload, 0, e.ApplicationMessage.Payload.Length);
}
if (topic.IndexOf("$dg/device/" + username + "/" + dtuAddr) == 0)
{
if (json.ContainsKey("cmd"))
{
if (json["cmd"].ToString() == "opc_items")
{
OPCDAHelper.Readitems(json);
}
else if (json["cmd"].ToString() == "opc_report")
{
OPCDAHelper.Publishvalues(json);
}
else if (json["cmd"].ToString() == "printer")
{
PrinterHelper.PrintPage(json["data"].ToString());
}
}
}
AccessHelper.Do_mdb(topic, json, clientid);
MqttServerHelper.Write(e.ApplicationMessage);
}