求助：Socket.connect

Question

服务器端代码：
        private IPEndPoint ServerInfo;
        private Socket ServerSocket;        private void button_Start_Click(object sender, EventArgs e)
        {
            ServerSocket = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
            ServerInfo = new IPEndPoint(IPAddress.Any,Convert.ToInt32("6000"));
            ServerSocket.Bind(ServerInfo);
            ServerSocket.Listen(10);
            button_Stop.Enabled = true;
            button_Start.Enabled = false;
            MessageBox.Show("启动成功");
        }        private void button_Stop_Click(object sender, EventArgs e)
        {
            ServerSocket.Close();
            button_Start.Enabled = true;
            button_Stop.Enabled = false;
            MessageBox.Show("启动结束");
        }
客户端代码：
        private IPEndPoint ServerInfo;
        private Socket ClientSocket;
        private void button_Enter_Click(object sender, EventArgs e)
        {
            ServerInfo = new IPEndPoint(IPAddress.Parse("127.0.0.1"), Convert.ToInt32("6000"));
            try
            {
                ClientSocket.Connect(ServerInfo);
                MessageBox.Show("登录服务器成功");
                
            }
            catch
            {
                MessageBox.Show("登录服务器失败");
            }
        }
为什么连接不上？？？？

Answer 1

服务器Listen只是开始侦听，如要接受连接还需要Accept。

Answer 2

  // 为新建连接创建新的Socket实例
    Socket s_Accept = socket.Accept();

Answer 3

using System.Net;
using System.Net.Sockets;
using System.Threading;
namespace Server
{
    public partial class ServerMain : Form
    {
        public ServerMain()
        {
            InitializeComponent();
        }        Socket ServerSocket;
        IPEndPoint ServerInfo;        Thread ServerThread;        Socket[] ClientSocket;
        int ClientNumb;        byte[] RecieveByte;        private void button_Star_Click(object sender, EventArgs e)
        {
            ServerInfo = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 8000);
            ServerSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            ServerSocket.Bind(ServerInfo);
            ServerSocket.Listen(10);            ClientSocket = new Socket[100];
            ClientNumb = 0;
            RecieveByte=new byte[65535];            //RecieveAccept();
            ServerThread = new Thread(RecieveAccept);
            ServerThread.Start();
            CheckForIllegalCrossThreadCalls = false;//不捕获对错误线程的调用
        }        public void RecieveAccept()
        {
            while (true)
            {                //MessageBox.Show((ClientNumb+1).ToString());
                ClientSocket[ClientNumb] = ServerSocket.Accept();
                MessageBox.Show((ClientNumb + 1).ToString());
                this.listBox_State.Items.Add("有一个连接");                int ByteNumbe;
                ByteNumbe = ClientSocket[ClientNumb].Receive(RecieveByte, RecieveByte.Length, 0);
                this.textBox_Message.Text = Encoding.Unicode.GetString(RecieveByte);                ClientNumb++;
                MessageBox.Show((ClientNumb + 1).ToString());
            }
        }        private void button_Stop_Click(object sender, EventArgs e)
        {
            ServerSocket.Close();
            listBox_State.Items.Add("服务停止");
        }
    }
}第一次连接服务端进行通信是没问题的，问题出在当了客户端从新开的时候，只能连接成功！`但发信息服务端没响应？？？？？？？

Answer 4

这样写应该是对的
Socket ClientSocket = new Socket[100];这样不好吧。
可以在while（true）里每次都new一个socket。
还有服务端最好用异步

Answer 5

楼主，5楼的建议是正确的，只有异步才能达到一般需求，你要代码，我可以给你一些，不过是刚刚随便写的，你可以参考一下，另外，下面的代码最好把数组改为集合吧（List<>）
public void RecieveAccept()
        {
            while (true)
            {
                ClientSocket[ClientNumb] = ServerSocket.Accept();
                ClientSocket[ClientNumb].BeginReceive(MsgBuffer, 0, MsgBuffer.Length, 0, new AsyncCallback(RecieveCallBack), ClientSocket[ClientNumb]);
                ClientNumb++;
            }
        }        /// <summary>
        /// 回发数据给客户端
        /// </summary>
        /// <param name="AR"></param>
        public void RecieveCallBack(IAsyncResult AR)
        {
            try
            {
                Socket RSocket = (Socket)AR.AsyncState;
                int REnd = RSocket.EndReceive(AR);
                string msg = Encoding.Unicode.GetString(MsgBuffer);
                if (msg.IndexOf("系统： ") == 0)
                {
                    //获取用户名
                    //添加到列表
                    //发送系统消息
                    Clientname[ClientNumb - 1] = msg.Substring(4, msg.IndexOf("进入系统") - 4).Trim();
                    for (int i = 0; i < ClientNumb; i++)
                    {
                        if (ClientSocket[i].Connected)
                        {
                            ClientSocket[i].Send(MsgBuffer, 0, REnd, 0);
                        }
                        RSocket.BeginReceive(MsgBuffer, 0, MsgBuffer.Length, 0, new AsyncCallback(RecieveCallBack), RSocket);
                    }
                }
                //分析出发信人和收信人
                if (msg.Contains("对") || msg.Contains("说："))
                {
                    receivename = msg.Substring(msg.IndexOf("对") + 1, msg.IndexOf("说：") - msg.IndexOf("对") - 1);
                    sendname = msg.Substring(0, msg.IndexOf("对"));                    for (int i = 0; i < ClientNumb; i++)
                    {
                        if (Clientname[i].Equals(sendname))
                        {
                            ClientSocket[i].Send(MsgBuffer, 0, REnd, 0);
                        }
                        if (Clientname[i].Equals(receivename))
                        {
                            ClientSocket[i].Send(MsgBuffer, 0, REnd, 0);
                        }                        RSocket.BeginReceive(MsgBuffer, 0, MsgBuffer.Length, 0, new AsyncCallback(RecieveCallBack), RSocket);
                    }
                }
            }
            catch (System.Exception e)
            {
                using (StreamWriter sw = new StreamWriter("text.txt", true))//为true追加文本里的内容
                {
                    sw.WriteLine(e.Message + DateTime.Now.ToString());
                }
            }
        }