/// <summary>
/// 客户端连接初始化
/// </summary>
/// <param name="o"></param>
private void Acceptor(IAsyncResult o)
{
TcpListener server = o.AsyncState as TcpListener;
try
{
//初始化连接的客户端
CollectTCPClient newClient = new CollectTCPClient();
newClient.NetWork = server.EndAcceptTcpClient(o);
lstConn.Invoke(new MethodInvoker(delegate {
//在lstConn中添加的是CollectTCPClient类型，所以在事件
//tebcontrol_SelectedIndexChanged中提取时也只能强制类型转换成
//CollectTCPClient,然后再进行其他操作，那么类CollectTCPClient的设计就至关重要
lstConn.Items.Add(newClient);
}));
newClient.NetWork.GetStream().BeginRead(newClient.buffer, 0, newClient.buffer.Length, new AsyncCallback(TCPCallBack), newClient);
server.BeginAcceptTcpClient(new AsyncCallback(Acceptor), server);//继续监听客户端连接
}
catch (ObjectDisposedException ex)
{ //监听被关闭
// MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (Exception ex)
{
//MessageBox.Show(ex.Message, "Acceptor错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void lstConn_SelectedIndexChanged(object sender, EventArgs e)
{
//选中某个客户端
//立刻找客户端要数据，并打开一个timer1定时器，每8s发送一次check_beat要数据
string[] str;
if (lstConn.SelectedItems.Count > 0)
{
try
{
byte[] check_beat = { 0xaa, 0xdd, 0x01, 0x32, 0x88, 0xEE };
CollectTCPClient selClient = (CollectTCPClient)lstConn.SelectedItem;
IPEndPoint iepR = (IPEndPoint)selClient.NetWork.Client.RemoteEndPoint;
str = selClient.Name.Split('-');
textBox_addp.Text = str[1];
//Advice：这里还是要加入查询指令，我感觉软件自动退出是没有安装，软件不稳定造成的
//安装完成后，咱在测试。
selClient.NetWork.GetStream().Write(check_beat, 0, check_beat.Length);
/*
* NOTE : 这个地方狂点会崩，为避免由于狂点引起的程序
* 崩溃，添加一个弹出框。
*/
MessageBox.Show("成功查询 " + str[1] + " 的数据");
Period_Inquiry();
}
catch { }
}
}
/// <summary>
/// 对当前选中的客户端发送数据
/// </summary>
/// <param name="sender"></param>
/// <param name="data"></param>
public bool SendData(byte[] data)
{
if (lstConn.SelectedItems.Count > 0)
{
for (int i = 0; i < lstConn.SelectedItems.Count; i++)
{
CollectTCPClient selClient = (CollectTCPClient)lstConn.SelectedItems[i];
try
{
selClient.NetWork.GetStream().Write(data, 0, data.Length);
}
catch (Exception ex)
{
/**
* Kabuto 2018/07/26
* 取消传输失误弹出消息框，改为放在列表消失时弹出
**/
// MessageBox.Show(selClient.Name + ":" + ex.Message, "SendData错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
}
return(true);
}
else
{
//MessageBox.Show("无可用客户端", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
}
private void button_band_Click_1(object sender, EventArgs e)
{
//绑定地名按钮
if (lstConn.SelectedItems.Count > 0)
{
CollectTCPClient selClient = (CollectTCPClient)lstConn.SelectedItem;
try
{
selClient.SetName(textBox_addp.Text, 1);
StreamWriter fileWriter = new StreamWriter("addr_ip.rng", true, Encoding.Default);
fileWriter.WriteLine(selClient.Name);
fileWriter.Flush(); //立即将数据写入addr_ip.rgn文件
fileWriter.Close();
MessageBox.Show(selClient.Name + "\r\n绑定成功！", "提示");
lstConn.Invoke(new MethodInvoker(delegate {
lstConn.Items.Remove(selClient);
lstConn.Items.Add(selClient);
}));
//if(textBox_addp.Text != null)
//{
// paf.comboxArea.Items.Add(textBox_addp.Text);
//}
//lstClient.Remove(selClient);
//lstClient.Add(selClient);
//BindLstClient();
}
catch (Exception ex)
{
MessageBox.Show(selClient.Name + ": 绑定地名失败，请重试！", "绑定地名失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
//return false;
}
}
else
{
MessageBox.Show("无可用客户端", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
// return false;
}
}
/// <summary>
/// 客户端通讯回调函数
/// </summary>
/// <param name="ar"></param>
private void TCPCallBack(IAsyncResult ar)
{
CollectTCPClient client = (CollectTCPClient)ar.AsyncState;
try
{
if (client.NetWork.Connected)
{
NetworkStream ns = client.NetWork.GetStream();
byte[] recdata = new byte[ns.EndRead(ar)];
if (recdata.Length > 0)
{
Array.Copy(client.buffer, recdata, recdata.Length);
if (DataReceived != null)
{
DataReceived.BeginInvoke(client, recdata, null, null);//异步输出数据
}
ns.BeginRead(client.buffer, 0, client.buffer.Length, new AsyncCallback(TCPCallBack), client);
}
else
{
//client.DisConnect();
//lstConn.Invoke(new MethodInvoker(delegate {
// lstConn.Items.Remove(client);
// /*
// * TODO : 可以不让列表消失，变色或者加一个已断开的后缀
// *
// * */
//}));
//client = null;
//GC.Collect();// 通知托管堆强制回收垃圾
//在这里要关闭client.NetWork.GetStream()
ns.Close();
client.DisConnect();
lstConn.Invoke(new MethodInvoker(delegate
{
lstConn.Items.Remove(client);
}));
//lstClient.Remove(client);
//BindLstClient();
client = null;
GC.Collect();// 通知托管堆强制回收垃圾
if (tcpsever != null)
{
tcpsever.Stop();
Thread.Sleep(5000);
StartTCPServer();
}
}
}
else
{
client.DisConnect();
lstConn.Invoke(new MethodInvoker(delegate {
lstConn.Items.Remove(client);
}));
//lstClient.Remove(client);
//BindLstClient();
client = null;
GC.Collect();// 通知托管堆强制回收垃圾
}
}
catch { }
}
