private void joinButton_Click(object sender, RoutedEventArgs e)
{
var clientName = nameTextBox.Text;
if (string.IsNullOrEmpty(clientName))
{
MessageBox.Show("请输入用户名");
return;
}
try
{
_tcpClient = new TcpClient(_serverHostName, _serverPort);
EnableJoinButton(false);
_bw = new BinaryWriter(_tcpClient.GetStream());
_br = new BinaryReader(_tcpClient.GetStream());
var sendMsg = TcpHelper.PackCommmond(clientName, TcpHelper.TalkCommond.Login);
//发送登录命令
SendMessage(sendMsg);
}
catch (Exception ep)
{
EnableJoinButton(true);
ShowMessage("连接服务器失败：" + ep.Message);
}
}
private void WindowLoaded(object sender, RoutedEventArgs e)
{
userNameLabel.Content = _userName;
_clientInstance = TcpHandler.GetInstance();
//获取当前登录用户的图标
var imagePath = "pack://application:,,,/images/" + _userName + ".jpg";
var iamgeUri = new Uri(imagePath);
try
{
loginUserImage.Source = new BitmapImage(iamgeUri);
}
catch
{
imagePath = "pack://application:,,,/images/user.jpg";
iamgeUri = new Uri(imagePath);
loginUserImage.Source = new BitmapImage(iamgeUri);
}
//获取好友列表
var commond = TcpHelper.PackCommmond(_userName, TcpHelper.TalkCommond.UpdateUserList);
_clientInstance.SendMessage(commond);
//新建线程接收服务端数据
th1 = new Thread(ReceiveData);
th1.Start();
//新建线程，用于更新消息提示
th2 = new Thread(ScanEmptyMsgTip);
th2.Start();
}
private void WindowClosing(object sender, System.ComponentModel.CancelEventArgs e)
{
if (_tcpClient != null)
{
var sendMsg = TcpHelper.PackCommmond(string.Empty, TcpHelper.TalkCommond.Logout);
SendMessage(sendMsg);
_br.Close();
_bw.Close();
_tcpClient.Close();
}
}
private void WindowClosing(object sender, System.ComponentModel.CancelEventArgs e)
{
th1.Abort();
th2.Abort();
if (_clientInstance != null && _clientInstance.client.Connected)
{
var sendMsg = TcpHelper.PackCommmond(string.Empty, TcpHelper.TalkCommond.Logout);
_clientInstance.SendMessage(sendMsg);
_clientInstance.br.Close();
_clientInstance.bw.Close();
_clientInstance.client.Close();
}
}
private void SendMessage()
{
var msg = sendMsgTextBox.Text;
if (string.IsNullOrEmpty(msg))
{
MessageBox.Show("不能发送空内容");
return;
}
var talkMsg = TcpHelper.PackCommmond(_talktoUserName + "," + msg, TcpHelper.TalkCommond.Talk);
_clientInstance.SendMessage(talkMsg);
ShowMessage(_loginUserName, msg, true);
ScrollMessageToBottom();
sendMsgTextBox.Text = string.Empty;
}
/// <summary>
/// 登录连接到服务器
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void loginButton_Click(object sender, RoutedEventArgs e)
{
//获取服务器IP
var serverIP = serverIPTextBox.Text;
if (string.IsNullOrEmpty(serverIP))
{
MessageBox.Show("请填写正确的服务器地址");
return;
}
try
{
var serverIPs = serverIP.Split(':');
TcpHandler._serverHostName = serverIPs[0]; ToString();
TcpHandler._serverPort = System.Convert.ToInt32(serverIPs[1]);
}catch (Exception ex) {
MessageBox.Show("服务器地址格式不正确");
return;
}
var userName = userNameTextBox.Text;
if (string.IsNullOrEmpty(userName))
{
MessageBox.Show("请输入用户名");
return;
}
try
{
clientInstance = TcpHandler.GetInstance();
var sendMsg = TcpHelper.PackCommmond(userName, TcpHelper.TalkCommond.Login);
//发送登录命令
clientInstance.SendMessage(sendMsg);
//创建新线程接收服务端消息
Thread th = new Thread(ReceiveData);
th.Start();
}catch (Exception ex) {
MessageBox.Show(ex.Message);
}
}
private void ClientHandler(object client)
{
var currentClient = (TcpClient)client;
var currentUser = new User(currentClient);
_loginUserList.Add(currentUser);
while (true)
{
string getMsg = string.Empty;
try
{
getMsg = currentUser._binaryReader.ReadString();
}catch (Exception e)
{
AddMessage("客户端" + currentUser.UserName + "连接异常,已终止该用户连接。" + e.Message);
//连接异常时退出登录
RemoveUser(currentUser);
break;
}
var unPackMsg = TcpHelper.UnPackCommond(getMsg);
var commond = unPackMsg.Item1;
switch (commond)
{
case TcpHelper.TalkCommond.Login:
//用户登录
var userName = unPackMsg.Item2;
var login = Login(currentUser, userName);
var sendMsg = TcpHelper.PackCommmond(login.Item2, TcpHelper.TalkCommond.Login);
SendMessageToClient(currentUser, sendMsg);
var isLogin = login.Item1;
if (isLogin)
{
//登录成功
//用户登录
AddMessage("用户" + userName + "已登录");
SetTotalUserCount(_loginUserList.Count());
currentUser.UserName = userName;
}
else
{
RemoveUser(currentUser);
//断开连接
currentUser.Close();
return;
}
break;
case TcpHelper.TalkCommond.Logout:
sendMsg = TcpHelper.PackCommmond(string.Empty, TcpHelper.TalkCommond.Logout);
SendMessageToAllClient(sendMsg);
RemoveUser(currentUser);
return;
case TcpHelper.TalkCommond.Talk:
userName = currentUser.UserName;
var talkMsg = unPackMsg.Item2.Split(',');
var talktoUserName = talkMsg[0];
var talkContent = unPackMsg.Item2.Substring(talkMsg[0].Length + 1, unPackMsg.Item2.Length - talkMsg[0].Length - 1);
//服务端转发消息到相应客户端
var talktoUser = _loginUserList.Where(v => v.UserName == talktoUserName).First();
talkContent = TcpHelper.PackCommmond(userName + "," + talkContent, TcpHelper.TalkCommond.Talk);
SendMessageToClient(talktoUser, talkContent);
break;
case TcpHelper.TalkCommond.UpdateUserList:
userName = unPackMsg.Item2;
//更新用户列表(今后可过滤好友用户)
var firendList = GetFirendTalkUserList(userName);
var jsonFirendList = JsonHandler.ToJson(firendList);
sendMsg = TcpHelper.PackCommmond(jsonFirendList, TcpHelper.TalkCommond.UpdateUserList);
SendMessageToClient(currentUser, sendMsg);
//将当期用户登录通知每位已上线的好友
var onlineFriends = firendList.Where(v => v.IsOnline).Select(v => v.UserName).ToList();
var onlineUsers = _loginUserList.Where(v => onlineFriends.Contains(v.UserName)).ToList();
foreach (var ur in onlineUsers)
{
//获取好友列表
firendList = GetFirendTalkUserList(ur.UserName);
jsonFirendList = JsonHandler.ToJson(firendList);
sendMsg = TcpHelper.PackCommmond(jsonFirendList, TcpHelper.TalkCommond.UpdateUserList);
SendMessageToClient(ur, sendMsg);
}
break;
default:
AddMessage("未定义命令：" + commond);
break;
}
}
}
private void ReceiveData()
{
while (true)
{
try
{
var getMsg = _clientInstance.br.ReadString();
var unPackMsg = TcpHelper.UnPackCommond(getMsg);
var commond = unPackMsg.Item1;
switch (commond)
{
case TcpHelper.TalkCommond.Logout:
//获取好友列表
var sendCommond = TcpHelper.PackCommmond(_userName, TcpHelper.TalkCommond.UpdateUserList);
_clientInstance.SendMessage(sendCommond);
break;
case TcpHelper.TalkCommond.UpdateUserList:
try
{
//获取用户列表
var userList = JsonHandler.UnJson <List <TalkUser> >(unPackMsg.Item2);
//线程中不能操作UI
System.Windows.Application.Current.Dispatcher.Invoke((Action)(() =>
{
CleanUserList();
userList = userList.OrderByDescending(v => v.IsOnline).ToList();
foreach (var user in userList)
{
AddUserToList(user);
}
}));
}catch (Exception e)
{
MessageBox.Show(e.Message);
}
break;
case TcpHelper.TalkCommond.Talk:
var talkMsgs = unPackMsg.Item2.Split(',');
var talkFromUserName = talkMsgs[0];
var talkContent = unPackMsg.Item2.Substring(talkMsgs[0].Length + 1, unPackMsg.Item2.Length - talkMsgs[0].Length - 1);
//将消息存入临时列表
StoreTalkMessage(talkFromUserName, talkContent);
//判断聊天窗口是否打开
TalkWindow tw = IsTalkWindowOpen(talkFromUserName);
if (tw == null)
{
//如果聊天窗口没有打开，则将显示消息条数提示
var messageCount = MessageList.memory[talkFromUserName].Count();
MessageList.SetMessageTipList(talkFromUserName, messageCount);
MessageList.resetMessageTip = true;
}
break;
default:
MessageBox.Show(getMsg);
break;
}
}catch (Exception e)
{
_clientInstance.CloseConnect();
return;
}
}
}