/// <summary>
/// 断开服务端
/// </summary>
public void Close()
{
try
{
if (_mqtt != null)
{
string er = string.Empty;
_mqtt.OnMessageArgs.OnEvent -= new COnEvent <CMQTT.CMessageArgs> .OnEventHandler(OnMessageRecv);
UnSubscribeTopics(_subscribeTopics, out er);
_mqtt.Close();
_mqtt = null;
}
}
catch (Exception)
{
}
}
/// <summary>
/// 连接服务端
/// </summary>
/// <param name="ip"></param>
/// <param name="port"></param>
/// <param name="er"></param>
/// <returns></returns>
public bool Connect(string ip, int port, out string er)
{
er = string.Empty;
try
{
if (_mqtt != null)
{
_mqtt.OnMessageArgs.OnEvent -= new COnEvent <CMQTT.CMessageArgs> .OnEventHandler(OnMessageRecv);
_mqtt.Close();
_mqtt = null;
}
_mqtt = new CMQTT(_idNo, _name);
if (!_mqtt.Connect(ip, port, out er))
{
_mqtt = null;
return(false);
}
if (!SubscribeTopics(_subscribeTopics, out er))
{
_mqtt.Close();
_mqtt = null;
return(false);
}
_mqtt.OnMessageArgs.OnEvent += new COnEvent <CMQTT.CMessageArgs> .OnEventHandler(OnMessageRecv);
return(true);
}
catch (Exception ex)
{
er = ex.ToString();
return(false);
}
}