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   源码介绍

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    实现客户端与服务器端互联互通

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using StriveEngine;
using StriveEngine.Core;
using StriveEngine.Tcp.Server;
using System.Net;

namespace StriveEngine.SimpleDemoServer
{
    /*
     * 更多实用组件请访问 www.oraycn.com 或 QQ：168757008。
     * 
     * ESFramework 强悍的通信框架、P2P框架、群集平台。OMCS 简单易用的网络语音视频框架。MFile 语音视频录制组件。StriveEngine 轻量级的通信引擎。
     */
    public partial class Form1 : Form
    {
        private ITcpServerEngine tcpServerEngine;
        private bool hasTcpServerEngineInitialized;
        public Form1()
        {
            InitializeComponent();            
        }

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {                
                if (this.tcpServerEngine == null)
                {
                    this.tcpServerEngine = NetworkEngineFactory.CreateTextTcpServerEngine(int.Parse(this.textBox_port.Text), new DefaultTextContractHelper("\0"));//DefaultTextContractHelper是StriveEngine内置的ITextContractHelper实现。使用UTF-8对EndToken进行编码。 
                }             
  
                if (this.hasTcpServerEngineInitialized)
                {                   
                    this.tcpServerEngine.ChangeListenerState(true);                    
                }
                else
                {
                    this.InitializeTcpServerEngine();                   
                }

                this.ShowListenStatus();
            }
            catch (Exception ee)
            {
                MessageBox.Show(ee.Message);
            }
        }

        private void InitializeTcpServerEngine()
        {  
            this.tcpServerEngine.ClientCountChanged  = new CbDelegate<int>(tcpServerEngine_ClientCountChanged);
            this.tcpServerEngine.ClientConnected  = new CbDelegate<System.Net.IPEndPoint>(tcpServerEngine_ClientConnected);
            this.tcpServerEngine.ClientDisconnected  = new CbDelegate<System.Net.IPEndPoint>(tcpServerEngine_ClientDisconnected);
            this.tcpServerEngine.MessageReceived  = new CbDelegate<IPEndPoint, byte[]>(tcpServerEngine_MessageReceived);
            this.tcpServerEngine.Initialize();
            this.hasTcpServerEngineInitialized = true;
        }

        private void ShowListenStatus()
        {            
            this.button_StopListen.Enabled = this.tcpServerEngine.IsListening ? true : false;
            this.button_StartListen.Enabled = this.tcpServerEngine.IsListening ? false : true;
            this.button_Close.Enabled = this.tcpServerEngine.IsListening ? true : false;
            this.textBox_port.ReadOnly = true ;            
            this.button_Send.Enabled = this.tcpServerEngine.IsListening ? true : false;
            this.toolStripLabel_Port.Text = this.tcpServerEngine.IsListening ? this.tcpServerEngine.Port.ToString() : null;
        }

        void tcpServerEngine_MessageReceived(IPEndPoint client, byte[] bMsg)
        {
            string msg = System.Text.Encoding.UTF8.GetString(bMsg); //消息使用UTF-8编码
            msg = msg.Substring(0, msg.Length - 1); //将结束标记"\0"剔除
            this.ShowClientMsg(client, msg);
        }

        void tcpServerEngine_ClientDisconnected(System.Net.IPEndPoint ipe)
        {
            string msg = string.Format("{0} 下线", ipe);
            this.ShowEvent(msg);
        }

        void tcpServerEngine_ClientConnected(System.Net.IPEndPoint ipe)
        {
            string msg = string.Format("{0} 上线" ,ipe);
            this.ShowEvent(msg);
        }        

        void tcpServerEngine_ClientCountChanged(int count)
        {
            this.ShowConnectionCount(count);
        }

        private void ShowEvent(string msg)
        {
            if (this.InvokeRequired)
            {
                this.BeginInvoke(new CbDelegate<string>(this.ShowEvent), msg);
            }
            else
            {
                this.toolStripLabel_event.Text = msg;
            }
        }

        private void ShowClientMsg(IPEndPoint client, string msg)
        {
            if (this.InvokeRequired)
            {
                this.BeginInvoke(new CbDelegate<IPEndPoint,string>(this.ShowClientMsg),client, msg);
            }
            else
            {
                ListViewItem item = new ListViewItem(new string[] { DateTime.Now.ToString(), client.ToString(), msg });
                this.listView1.Items.Insert(0, item);
            }
        }

        private void ShowConnectionCount(int clientCount)
        {
            if (this.InvokeRequired)
            {
                this.BeginInvoke(new CbDelegate<int>(this.ShowConnectionCount), clientCount);
            }
            else
            {
                this.toolStripLabel_clientCount.Text = "在线数量： "   clientCount.ToString();
            }
        }

        private void comboBox1_DropDown(object sender, EventArgs e)
        {
            List<IPEndPoint> list = this.tcpServerEngine.GetClientList();
            this.comboBox1.DataSource = list;            
        }

        private void button2_Click(object sender, EventArgs e)
        {
            try
            {
                IPEndPoint client = (IPEndPoint)this.comboBox1.SelectedItem;
                if (client == null)
                {
                    MessageBox.Show("没有选中任何在线客户端！");
                    return;
                }

                if (!this.tcpServerEngine.IsClientOnline(client))
                {
                    MessageBox.Show("目标客户端不在线！");
                    return;
                }

                string msg = this.textBox_msg.Text   "\0";// "\0" 表示一个消息的结尾
                byte[] bMsg = System.Text.Encoding.UTF8.GetBytes(msg);//消息使用UTF-8编码
                this.tcpServerEngine.SendMessageToClient(client, bMsg);
            }
            catch (Exception ee)
            {
                MessageBox.Show(ee.Message);
            }
        }

        private void button_StopListen_Click(object sender, EventArgs e)
        {
            if(!this.tcpServerEngine.IsListening)
            {
                return;
            }
            this.tcpServerEngine.ChangeListenerState(false);
            this.ShowListenStatus();          
        }

        private void button_Close_Click(object sender, EventArgs e)
        {
            //this.tcpServerEngine.CloseAllClient();
            this.tcpServerEngine.Dispose();           
            this.ShowListenStatus();
            this.textBox_port.ReadOnly = false;
            this.textBox_port.SelectAll();
            this.textBox_port.Focus();
            this.hasTcpServerEngineInitialized = false;
            this.tcpServerEngine = null;
        }      
    } 
}