//返回信息
public void AddMessage(object sender, AddMessageEventArgs e)
{
string message = e.mess;
string appendText;
string[] sep = message.Split('>');
string[] sepIp = sep[0].Split('<', ':');
bool checkIp = true;
for (int i = 0; i < listBox1.Items.Count; i++)
{
if (listBox1.Items[i].ToString() == sepIp[1])
{
checkIp = false;
}
}
if (checkIp && sep[1] != "断开")
{
this.listBox1.Items.Add(sepIp[1].Trim());
chatTo = sepIp[1];
}
appendText = sep[0] + ">: " + System.DateTime.Now.ToString() + Environment.NewLine + sep[1] + Environment.NewLine;
int txtGetMsgLength = this.richTextBox1.Text.Length;
this.richTextBox1.AppendText(appendText);
this.richTextBox1.Select(txtGetMsgLength, appendText.Length - Environment.NewLine.Length * 2 - sep[1].Length);
this.richTextBox1.SelectionColor = Color.Red;
this.richTextBox1.ScrollToCaret();
}
private void Listen()
{
try
{
IPAddress addr = new IPAddress(Dns.GetHostByName(Dns.GetHostName()).AddressList[0].Address);
IPEndPoint ipLocalEndPoint = new IPEndPoint(addr, 5656);
tcp1 = new TcpListener(ipLocalEndPoint);
tcp1.Start();
while (listenerRun)
{
Socket s = tcp1.AcceptSocket();
string remote = s.RemoteEndPoint.ToString();
Byte[] stream = new Byte[1024];
int i = s.Receive(stream);
string msg;
string str = System.Text.Encoding.UTF8.GetString(stream);
if (str.Substring(0, 1) == "1")
{
string str_ = "欢迎登陆！";
TcpClient tcpc = new TcpClient(((IPEndPoint)s.RemoteEndPoint).Address.ToString(), 5657);
NetworkStream tcpStream = tcpc.GetStream();
Byte[] data = System.Text.Encoding.UTF8.GetBytes(str_);
tcpStream.Write(data, 0, data.Length);
tcpStream.Close();
tcpc.Close();
msg = "<" + remote + ">" + "上线";
AddMessageEventArgs arg = new AddMessageEventArgs();
arg.mess = msg;
}
else if (str.Substring(0, 1) == "0")
{
msg = "<" + remote + ">" + "断开";
AddMessageEventArgs argRe = new AddMessageEventArgs();
argRe.mess = remote.ToString();
OnIpRemod(this, argRe);
}
else
{
msg = "<" + remote + ">" +
System.Text.UTF8Encoding.UTF8.GetString(stream);
AddMessageEventArgs arg = new AddMessageEventArgs();
arg.mess = msg;
OnAddMessage(this, arg);
}
}
}
catch (System.Security.SecurityException)
{
MessageBox.Show("防火墙禁止连接！");
}
catch (Exception) { }
}
//下线
public void IpRemo(object sender, AddMessageEventArgs e)
{
string[] sep = e.mess.Split(':');
try
{
int index = 0;
for (int i = 0; i < listBox1.Items.Count; i++)
{
if (listBox1.Items[i].ToString() == sep[0].ToString())
{
index = i;
this.listBox1.Items.RemoveAt(index);
}
}
}
catch
{
MessageBox.Show("没有这个IP");
}
}
