c#实现多线程局域网聊天系统
作者:hebedich 时间:2022-12-01 23:34:25
觉得好有点帮助就顶一下啦。
socke编程,支持多客户端,多线程操作避免界面卡死。
开启socket
private void button1_Click(object sender, EventArgs e)
{
try
{
int port = int.Parse(txt_port.Text);
string host = txt_ip.Text;
//创建终结点
IPAddress ip = IPAddress.Parse(host);
IPEndPoint ipe = new IPEndPoint(ip, port);
//创建Socket并开始监听
newsock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); //创建一个Socket对象,如果用UDP协议,则要用SocketTyype.Dgram类型的套接字
newsock.Bind(ipe); //绑定EndPoint对象
newsock.Listen(0); //开始监听
//为新建立的连接创建新的Socket
acceptClientThread = new Thread(new ThreadStart(AcceptClient));
acceptClientThread.Start();
SetText("开始监听");
}
catch (Exception exp)
{
CommonFunction.WriteLog(exp, exp.Message);
}
}
监控端口,接收客户端
/// <summary>
/// 接受客户端,可接受多个客户端同时连入,并对连入的客户端注册到客户端列表
/// </summary>
public void AcceptClient()
{
try
{
while (true)
{
Socket client = newsock.Accept();
ip = client.Handle;
RegeistUser(client.Handle, client);
Thread clientThread = new Thread(new ParameterizedThreadStart(ReceiveData));
object o = client;
clientThread.Start(o);
}
}
catch (Exception exp)
{
CommonFunction.WriteLog(exp, exp.Message);
}
}
接收客户端数据并广播数据
/// <summary>
/// 接收客户端数据并,转发到目标客户端。
/// </summary>
public void ReceiveData(object o)
{
try
{
while (true)
{
Socket client = (Socket)o;
string recvStr = "";
byte[] recvBytes = new byte[1024];
int bytes;
bytes = client.Receive(recvBytes, recvBytes.Length, 0); //从客户端接受消息
recvStr = Encoding.UTF8.GetString(recvBytes, 0, bytes);
SendMessage(client, recvStr);
SetText(recvStr);
CommonFunction.WriteErrorLog(recvStr);
}
}
catch (Exception exp)
{
CommonFunction.WriteLog(exp, exp.Message);
}
}
判断是用户注册还是发送消息
/// <summary>
/// 判断是用户注册还是发送消息
/// </summary>
/// <param name="p_strMessage"></param>
public void SendMessage(Socket client,string p_strMessage)
{
if (p_strMessage.StartsWith("@"))
{
RegeistUser(p_strMessage, client);
}
else if (p_strMessage.StartsWith(">"))
{
DeleteClident(p_strMessage);
}
else
{
//SendMessageToTarget(p_strMessage);
SendAllMessage(p_strMessage);
}
}
将socket注册为指定用户名
/// <summary>
/// 将socket注册为指定用户名
/// </summary>
/// <param name="user"></param>
/// <param name="ss"></param>
public void RegeistUser(string user, Socket ss)
{
user = user.Remove(0, 1);
userSocketDict.Add(user, ss);
SendOneMessage(ss, "欢迎" + user + "连入!");
RefreshClient();
}
从客户端字典中移除客户端
/// <summary>
/// 从客户端字典中移除客户端
/// </summary>
/// <param name="p_strMessage"></param>
public void DeleteClident(string p_strMessage)
{
p_strMessage = p_strMessage.Remove(0, 1);
userSocketDict.Remove(p_strMessage);
RefreshClient();
}
群发消息
/// <summary>
/// 群发消息
/// </summary>
/// <param name="p_strsend"></param>
public void SendAllMessage(string p_strsend)
{
//MessageBox.Show(p_strsend);
foreach (string item in userSocketDict.Keys)
{
byte[] bs = Encoding.UTF8.GetBytes(p_strsend);
userSocketDict[item].Send(bs, bs.Length, 0);
}
}
给文本框赋值
public delegate void SetTextHandler(string text);
/// <summary>
/// 给文本框赋值
/// </summary>
/// <param name="text"></param>
private void SetText(string text)
{
if (rich_back.InvokeRequired == true)
{
SetTextHandler set = new SetTextHandler(SetText);//委托的方法参数应和SetText一致
rich_back.Invoke(set, new object[] { text }); //此方法第二参数用于传入方法,代替形参text
}
else
{
rich_back.Text += "\n" + text;
}
}
连入服务器
private void button1_Click(object sender, EventArgs e)
{
try
{
user = txt_name.Text;
int port = int.Parse(txt_port.Text);
string host = txt_ip.Text;
//创建终结点EndPoint
IPAddress ip = IPAddress.Parse(host);
IPEndPoint ipe = new IPEndPoint(ip, port); //把ip和端口转化为IPEndPoint的实例
//创建Socket并连接到服务器
Socket c = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); // 创建Socket
cc = c;
c.Connect(ipe); //连接到服务器
clientThread = new Thread(new ThreadStart(ReceiveData));
clientThread.Start();
//向服务器发送本机用户名,以便服务器注册客户端
SendMessage("@" + txt_name.Text);
}
catch (ArgumentException ex)
{
Console.WriteLine("argumentNullException:{0}", ex);
}
catch (SocketException exp)
{
Console.WriteLine("SocketException:{0}",exp);
}
}
向服务器发送消息
private void button3_Click(object sender, EventArgs e)
{
if (""==txt_target.Text)
{
MessageBox.Show("未选择对话人物");
return;
}
//向服务器发送信息
string sendStr = txt_name.Text + "@" + target + ":" + txt_message.Text;
SendMessage(sendStr);
rch_back.Text += "\n" + sendStr;
txt_message.Text = "";
}
隐身
private void button2_Click(object sender, EventArgs e)
{
try
{
SendMessage(">" + txt_name.Text);
//cc.Disconnect(true);
//cc.Shutdown(SocketShutdown.Both);
//cc.Close();
}
catch (Exception exp)
{
CommonFunction.WriteLog(exp, exp.Message);
}
}
以上所述就是本文的全部内容了,希望大家能够喜欢。
标签:c#,多线程,聊天
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