日期:2014-05-18 浏览次数:20780 次
private void button3_Click(object sender, EventArgs e) { try { string msg = "<" + textBox3.Text + ">" + textBox2.Text; TcpClient tcpc = new TcpClient(textBox1.Text, 5656); NetworkStream tcpStream = tcpc.GetStream(); StreamWriter reqStreamW = new StreamWriter(tcpStream); reqStreamW.Write(msg); reqStreamW.Flush(); tcpStream.Close(); tcpc.Close(); richTextBox1.AppendText(msg); textBox2.Clear(); } catch (Exception) { toolStripStatusLabel1.Text = "目标计算机拒绝连接请求!"; } } private void button1_Click(object sender, EventArgs e) { try { IPAddress ip = new IPAddress(new byte[] { 192, 168, 1, 105 }); tcplistener = new TcpListener(ip, 1234); tcplistener.Start(); toolStripStatusLabel1.Text = "开始监听……"; while (true) { //等待客户机接入 tcpclient = tcplistener.AcceptTcpClient(); ns = tcpclient.GetStream(); // byte[] buffer = new byte[1024]; int bytesRead = ns.Read(buffer, 0, 1024); string msg = System.Text.Encoding.GetEncoding("gb2312").GetString(buffer); this.textBox1.Text = msg; } } catch (System.Security.SecurityException) { StopListener(); MessageBox.Show("防火墙安全错误!", "错误", MessageBoxButtons.OK, MessageBoxIcon.Exclamation); } catch (Exception) { StopListener(); toolStripStatusLabel1.Text = "已停止监听!"; } } private void button2_Click(object sender, EventArgs e) { // StopListener(); toolStripStatusLabel1.Text = "已停止监听!"; } private void StopListener() { ns.Close(); tcpclient.Close(); tcplistener.Stop(); }