protected virtual void OnReceived(TCPEventArgs e)
{
if (MessageReceived != null)
{
MessageReceived(this, e);
}
}
private void Polling()
{
while (mark)
{
try
{
string data = Recieve();
if (data != "")
{
TCPEventArgs args = new TCPEventArgs(data, client);
if (MessageReceived != null)
{
MessageReceived(this, args);
}
//Messages.WriteLine(data);
}
Thread.Sleep(20);
if (isconnect != null)
{
isconnect(IsConnected());
}
}
catch (Exception ex)
{
//Log.WriteLog("网络循环出现错误，信息为" + ex.Message);
}
}
}
public void AnalyzePLCMessage(Object sender, TCPEventArgs e)
{
Debug.WriteLine("receivedMessage: " + e.receivedmessage);
string recStr = e.receivedmessage.Replace(" ", "");
string[] recStrArr = recStr.Split(' ');
Messages.WriteLine("接收到PLC传送的图片文件名:" + recStr);
if (recStr.Contains("."))
{
Messages.WriteLine("准备从文件服务器读取文件");
GetImage(recStr);
Messages.WriteLine("图片读取完成，启动打印机");
PrintImage();
Messages.WriteLine("反馈信号给PLC");
Thread.Sleep(2000);
PrinterTcp.Send("READY");
Messages.WriteLine("打印任务发送完成");
Debug.WriteLine("Print Complete");
}
Debug.WriteLine(recStr);
}
/// <summary>
/// 数据接收委托函数
/// </summary>
/// <param name="result">传入参数</param>
protected void DataRec(IAsyncResult result)
{
if (IsOnline())
{
int length = networkstream.EndRead(result); //获取接收数据的长度
List <byte> data = new List <byte>(); //新建byte数组
data.AddRange((byte[])result.AsyncState); //获取数据
data.RemoveRange(length, data.Count - length); //根据长度移除无效的数据
byte[] data2 = new byte[1000]; //重新定义接收缓冲
bool c = tcpclient.Connected;
networkstream.BeginRead(data2, 0, 1000, new AsyncCallback(DataRec), data2); //重新挂起数据的接收等待
//自定义代码区域，处理数据data
//for (int i = 0; i < data.Count;i++ )
//{
// Debug.WriteLine(data[i]);
//}
Encoding receiveEncoding_ = Encoding.UTF8;
string receiveStr = receiveEncoding_.GetString((byte[])result.AsyncState, 0, length);
receivedMessage = receiveStr;
receivedMessageCount++;
// Debug.WriteLine(receiveStr);
TCPEventArgs e = new TCPEventArgs(receiveStr);
OnReceived(e);
if (length == 0)
{
//连接已经关闭
Debug.WriteLine("connection closed by server----------------");
}
}
else
{
ReConnect();
}
}