private void Btnsend_Click(object sender, EventArgs e)
{
string strsend = sendtext.Text.Trim();
if (string.IsNullOrEmpty(strsend) || pclist.CheckedItems.Count <= 0)
{
MessageBox.Show("消息为空或未选择发送人");
return;
}
PcMsg pm = new PcMsg
{
sendpcname = pcname.Text,
msg = strsend
};
for (int i = 0; i < pclist.CheckedItems.Count; i++)
{
DataRowView drv = pclist.CheckedItems[i] as DataRowView;
pm.pcname.Add(new PcName(drv["guid"].ToString(), drv["name"].ToString()));
}
byte[] buffter = Encoding.UTF8.GetBytes(pm.SerializeObject());
try
{
int temp = socketClient.Send(buffter);
//msgtext.AppendText(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + pm.sendpcname + " 说: " + strsend + System.Environment.NewLine);
sendtext.Clear();
}
catch (Exception ex)
{
msgtext.AppendText(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "：" + ex.Message + System.Environment.NewLine);
}
}
private void Btnconnect_Click(object sender, EventArgs e)
{
try
{
serverip = tbserverip.Text.Trim();
socketClient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
socketClient.Connect(serverip, 8009);
PcMsg pm = new PcMsg
{
sendpcname = pcname.Text,
msg = pcname.Text,
notice = false
};
socketClient.Send(Encoding.UTF8.GetBytes(pm.SerializeObject()));
TextBox.CheckForIllegalCrossThreadCalls = false;
thread = new Thread(Recive)
{
IsBackground = true
};
thread.Start(socketClient);
btnsend.Enabled = true;
sendtext.Enabled = true;
btnstop.Enabled = true;
btnconnect.Enabled = false;
pcname.Enabled = false;
msgtext.AppendText(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "：连接服务成功" + System.Environment.NewLine);
}
catch (Exception ex)
{
msgtext.AppendText(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "：" + ex.Message + System.Environment.NewLine);
}
}
/// <summary>
/// 监听连接
/// </summary>
/// <param name="o"></param>
static void Listen(object o)
{
Socket serverSocket = o as Socket;
while (true)
{
try
{
//等待连接并且创建一个负责通讯的socket
Socket con = serverSocket.Accept();
//获取连接的PcName
byte[] buffer = new byte[1024 * 1024 * 2];
con.ReceiveTimeout = 1000;
int effective = con.Receive(buffer);
string json = string.Empty;
if (effective > 0)
{
json = Encoding.UTF8.GetString(buffer, 0, effective);
}
PcMsg pm = PcMsg.DeserializeJosn(json);
if (pm == null || pm.notice)
{
//con.Close();
continue;
}
string pcname = pm.msg;
//将该Pc加入到连接列表中
String guid = Guid.NewGuid().ToString();
skAll.Add(guid, new GuidSocket(pcname, con));
Updatepc();
//获取链接的IP地址
String sendIpoint = con.RemoteEndPoint.ToString();
Console.WriteLine("已连接客户端：" + pcname + ", 地址: " + sendIpoint);
//开启一个新线程不停接收消息
Thread thread = new Thread(Recive)
{
IsBackground = true
};
thread.Start(guid);
}
catch (Exception ex)
{
Console.WriteLine("Listen错误：" + ex.Message);
//服务端强制关闭连接
if (ex is SocketException skex && skex.ErrorCode == 10054)
{
//return;
}
}
}
}
/// <summary>
/// 接收消息
/// </summary>
/// <param name="o"></param>
static void Recive(object o)
{
String guid = o as String;
while (true)
{
try
{
//获取发送过来的消息容器
byte[] buffer = new byte[1024 * 1024 * 2];
skAll[guid].socket.ReceiveTimeout = 0;
int effective = skAll[guid].socket.Receive(buffer);
//有效字节为0则跳过
if (effective == 0)
{
break;
}
String json = Encoding.UTF8.GetString(buffer, 0, effective);
PcMsg pm = PcMsg.DeserializeJosn(json);
if (pm == null)
{
Console.WriteLine("用户非法访问: " + skAll[guid].socket.RemoteEndPoint);
skAll[guid].socket.Close();
skAll.Remove(guid);
break;
}
if (pm.notice)
{
string nexuser = string.Empty;
pm.sendpcname = skAll[guid].name;
foreach (PcName pnTemp in pm.pcname)
{
skAll[pnTemp.guid].socket.Send(Encoding.UTF8.GetBytes(pm.SerializeObject()));
nexuser += (string.IsNullOrEmpty(nexuser) ? "" : "、") + pnTemp.name;
}
Console.WriteLine("用户" + skAll[guid].name + "向" + nexuser + " 发送了消息：" + pm.msg);
}
else
{
Console.WriteLine(json);
}
}
catch (Exception ex)
{
//服务端强制关闭连接
if (ex is SocketException skex && skex.ErrorCode == 10054)
{
Console.WriteLine("Recive 客户端: " + skAll[guid].name + ", 地址: " + skAll[guid].socket.RemoteEndPoint + "已经退出" + ", " + ex.Message);
}
private static void SocketAsyncEventArgs_Completed(object sender, SocketAsyncEventArgs e)
{
try
{
//获取连接的PcName
byte[] buffer = e.Buffer;
int effective = buffer.Length;
string json = string.Empty;
if (effective > 0)
{
json = Encoding.UTF8.GetString(buffer, 0, effective);
}
PcMsg pm = PcMsg.DeserializeJosn(json);
if (pm == null || pm.notice)
{
return;
}
string pcname = pm.msg;
//将该Pc加入到连接列表中
String guid = Guid.NewGuid().ToString();
skAll.Add(guid, new GuidSocket(pcname, e.AcceptSocket));
Updatepc();
//获取链接的IP地址
String sendIpoint = e.AcceptSocket.RemoteEndPoint.ToString();
Console.WriteLine("已连接客户端：" + pcname + ", 地址: " + sendIpoint);
//开启一个新线程不停接收消息
Thread thread = new Thread(Recive)
{
IsBackground = true
};
thread.Start(guid);
}
catch (Exception ex)
{
Console.WriteLine("Listen错误：" + ex.Message);
//服务端强制关闭连接
if (ex is SocketException skex && skex.ErrorCode == 10054)
{
//return;
}
}
}
/// <summary>
/// 接收消息
/// </summary>
/// <param name="o"></param>
public void Recive(object o)
{
var send = o as Socket;
while (true)
{
//获取发送过来的消息
byte[] buffer = new byte[1024 * 1024 * 2];
try
{
var effective = send.Receive(buffer);
if (effective == 0)
{
break;
}
string json = Encoding.UTF8.GetString(buffer, 0, effective);
PcMsg pm = PcMsg.DeserializeJosn(json);
if (pm.notice)
{
this.msgtext.AppendText(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss ") + pm.sendpcname + ":" + pm.msg + System.Environment.NewLine);
}
else
{
this.pclist.DataSource = pm.GetPcNameDt();
this.pclist.DisplayMember = "name";
this.pclist.ValueMember = "guid";
}
}
catch (Exception ex)
{
this.msgtext.AppendText(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "：" + ex.Message + System.Environment.NewLine);
//服务端强制关闭连接
if (ex is SocketException skex && skex.ErrorCode == 10054)
{
return;
}
}
}
}
