namespace MyChatServer
{
public partial class MyChatServer : Form
{
IPAddress myip;
IPEndPoint myserver;
Socket mysocket;
Socket handler;
private stateobject state;
bool closes = false;
static ManualResetEvent myreset = new ManualResetEvent(false);
delegate void apptext(string m);
public MyChatServer()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
String conn = "Data Source=.;Initial Catalog=chat;Integrated Security=True";
string strSQL = " select * from users ";
SqlConnection con = new SqlConnection(conn);
con.Open();
SqlCommand com = con.CreateCommand();
com.CommandText = strSQL;
SqlDataAdapter da = new SqlDataAdapter(com);
DataSet ds = new DataSet();
da.Fill(ds);
try
{
if (ds.Tables[0].Rows.Count > 1)
{
//将获得数据源赋予数据库控件
dataGridView1.DataSource = ds.Tables[0];
}
}
catch (Exception ex)
{
throw new Exception(ex.ToString());
}
finally
{
da.Dispose();
con.Dispose();
con.Close();
}
string HostName = Dns.GetHostName(); //得到主机名
IPHostEntry IpEntry = Dns.GetHostEntry(HostName); //得到主机IP
string strIPAddr = IpEntry.AddressList[1].ToString();
foreach (System.Net.IPAddress ip in IpEntry.AddressList)
{
this.servername.Text = strIPAddr;
}
}
private void starts_Click(object sender, EventArgs e)
{
try
{
myip = IPAddress.Parse(servername.Text);
}
catch (Exception s)
{
MessageBox.Show(s.Message);
}
try
{
myserver = new IPEndPoint(myip, Int32.Parse(serverport.Text));
mysocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
mysocket.Bind(myserver);
int no = Int32.Parse(textBox1.Text);
mysocket.Listen(no);
serverstate.AppendText("服务器：" + servername.Text + "\r\n端口：" + serverport.Text + "开始监听...\r\n");
Thread s;
s = new Thread(new ThreadStart(target));
s.Start();
serverport.ReadOnly = true;
servername.ReadOnly = true;
starts.Enabled = false;
textBox1.Enabled = false;
}
catch (Exception p)
{
MessageBox.Show(p.Message);
}
}
private void target()
{
Thread.CurrentThread.IsBackground = true;
while (true)
{
if (closes == true)
return;
myreset.Reset();
mysocket.BeginAccept(new AsyncCallback(acceptcall), mysocket);
myreset.WaitOne();
}
}
private void apptextcall(string m)
{
this.serverstate.AppendText(m + "\r\n");
}
private void acceptcall(IAsyncResult ar)
{
Thread.CurrentThread.IsBackground=true;
if (closes == true)
return;
myreset.Set();
Socket p = (Socket)ar.AsyncState;
handler = p.EndAccept(ar);
state = new stateobject();
state.worksoc = handler;
string me = "客户端：" + handler.RemoteEndPoint.ToString() + "连接成功";
handler.BeginReceive(state.mess, 0, 1000,0, new AsyncCallback(ReceiveData), state);
if (this.serverstate.InvokeRequired)
{
apptext settext = new apptext(apptextcall);
this.Invoke(settext, new object[] { me });
}
else
{
this.serverstate.AppendText(me + "\r\n");
}
}
private void SendData(string data)
{
byte[] byteData = Encoding.Unicode.GetBytes(data);
state.worksoc.BeginSend(byteData, 0, byteData.Length, 0, new AsyncCallback(SendCallback), state);
}
private void SendCallback(IAsyncResult ar)
{
try
{
Socket handler = (Socket)ar.AsyncState;
int bytesSent = handler.EndSend(ar);
}
catch (Exception s)
{
MessageBox.Show(s.Message);
}
}
private void stops_Click(object sender, EventArgs e)
{
try
{
if (mysocket != null)
{
DialogResult s = MessageBox.Show("退出可能会丢失客户端连接\r\n是否继续?", "警告", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation);
if (s == DialogResult.No)
return;
mysocket.Close();
}
closes =true;
this.Close();
}
catch (Exception p)
{
MessageBox.Show(p.Message);
}
}
private void ReceiveData(IAsyncResult ar)
{
stateobject state = (stateobject)ar.AsyncState;
Socket handler = state.worksoc;
int bytesRead = handler.EndSend(ar);
/*这里需要判断 用户发送来的信息是哪一类的。
* 比如当bytesRead=1的时候表示：客户端上用户点击了登录，发送的是用户名和密码，此刻要执行查询数据库，返回验证结果。
如果当bytesRead=2时表示：客户端上用户点击注册，发送了个人的相关信息，服务器要将这些数据添加到数据库，返回注册结果。
* bytesRead=4 ......等等
* 在这里应该怎么写？而且clientSocket.EndReceive(ar)最终接收的应该是一组数据信息，它应该把这些信息分开。这里有点晕... 还有那些处理方法写在不同的函数体里调用， 还是把整个放在一个类里？
*
*/
handler.BeginReceive(state.mess, 0, 1000, 0, new AsyncCallback(ReceiveData), state);
}
private void MyChatServer_MinimumSizeChanged(object sender, EventArgs e)
{
this.Hide();
}
private void notifyIcon1_Click(object sender, EventArgs e)
{
this.Show();
}
private void MyChatServer_Deactivate(object sender, EventArgs e)
{
if (this.WindowState == FormWindowState.Minimized)
{
this.Hide();
}
}
private void serverstate_TextChanged(object sender, EventArgs e)
{
}
}
}
public class stateobject
{
public Socket worksoc;
public StringBuilder sb=new StringBuilder();
public int length = 1024;
public byte[] mess;
public stateobject()
{ mess = new byte[length]; }
}
另外我规定的消息格式是TLV形式 主要就是怎么分开接收不会。。。求指教~~~
顶
