[原创]C#仿QQ聊天程序(点对点无服务端, P2P)

作者:C/S框架网发布日期:2011/05/17 22:10:24

[原创]C#仿QQ聊天程序(点对点无服务端, P2P)

本程序是C#仿QQ程序的精简版，做了大量优化处理，包括全新界面设计及删除部分冗余代码。QQ程序涉及简单网络通信，也是网络基础编程的好教材，包括动态分配端口，对象加密传输，消息处理，在线列表管理，UI控制，系统配置，接口设计等技术值得学习。

贴图图片

对话窗体，可以显示和隐藏聊天记录。

贴图图片

打开了5个程序实例用于测试，模仿5个不同IP的客户端。当收到消息时任务栏图标志会闪烁。

下面介绍几个核心类及接口：

1.用户在线列表接口

/// <summary>
/// 用户在线列表接口
/// </summary>
public interface IConnectionList
{
   /// <summary>
   /// 批量添加用户列表。
   /// </summary>
   /// <param name="connList"></param>
   void AddConnection(IList connList);

   /// <summary>
   /// 添加一个用户连接
   /// </summary>
   /// <param name="conn"></param>
   void AddConnection(ChatConnection conn);

   /// <summary>
   /// 在指定位置插入用户连接
   /// </summary>
   /// <param name="position"></param>
   /// <param name="conn"></param>
   void AddConnection(int position, ChatConnection conn);

   /// <summary>
   /// 删除一个用户连接
   /// </summary>
   /// <param name="account"></param>
   void RemoveConnection(string account);

   /// <summary>
   /// 检查该用户是否在用户列表之中
   /// </summary>
   /// <param name="account"></param>
   /// <returns></returns>
   bool IsConnectionExists(string account);

   /// <summary>
   /// 设置指定用户状态
   /// </summary>
   /// <param name="account"></param>
   /// <param name="state"></param>
   void SetConnectionState(string account, ChatState state);

   /// <summary>
   /// 当用户接受到消息，用户图标自动闪烁(如QQ那样跳动)
   /// </summary>
   /// <param name="account"></param>
   void FlashConnection(string account);

   /// <summary>
   /// 停止跳动
   /// </summary>
   /// <param name="account"></param>
   void StopFlash(string account);

   /// <summary>
   /// 关闭所有用户
   /// </summary>
   void CloseAll();
   void CloseAll(bool removeUser);

   /// <summary>
   /// 增加接收到的消息，加入到聊天记录文件。
   /// </summary>
   /// <param name="sender"></param>
   /// <param name="message"></param>
   /// <returns></returns>
   int AddReceivedMessage(string sender, string message);

   /// <summary>
   /// 返回所有连接
   /// </summary>
   /// <returns></returns>
   IList GetConnections();

   /// <summary>
   /// 返回选中的用户
   /// </summary>
   /// <returns></returns>
   ChatConnection GetSelectedConnection();

   /// <summary>
   /// 返回指定的用户连接
   /// </summary>
   /// <param name="account"></param>
   /// <returns></returns>
   ChatConnection GetConnection(string account);

   /// <summary>
   /// 显示用户类型(按部门或显示所有用户)
   /// </summary>
   ShowUser ShowUserType { get; set; }
}

2.发送消息窗体接口

/// <summary>
/// 发送消息对话框接口
/// </summary>
public interface ISendMsgProxy
{
   /// <summary>
   /// 给发送消息窗体设置发送人和接收人
   /// </summary>
   /// <param name="from"></param>
   /// <param name="to"></param>
   void SetConnection(ChatConnection from, ChatConnection to);

   /// <summary>
   /// 发送消息
   /// </summary>
   /// <param name="msg"></param>
   void SendMessage(string msg);

   /// <summary>
   /// 接收人
   /// </summary>
   ChatConnection TargetConnection { get; }

   /// <summary>
   /// 发送人
   /// </summary>
   ChatConnection SenderConnection { get; }

   /// <summary>
   /// 显示消息
   /// </summary>
   /// <param name="type"></param>
   /// <param name="msg"></param>
   void ShowMessage(ShowMessageType type, string msg);
   void ShowMessage(ShowMessageType type, ArrayList msgList);

   /// <summary>
   /// 显示窗体
   /// </summary>
   void ShowMe();
}

3.用户资料及用户连线状态信息

/// <summary>
/// 用户资料及用户连线状态信息
/// </summary>
public class ChatConnection
{
   private string _DisplayName = string.Empty; //DisplayName
   private string _Account = string.Empty; //Account
   private string _IP = string.Empty; //联系人地址
   private int _Port = -1;
   private Image _PhotoIcon = null; //头像
   private ChatState _State = ChatState.None;
   private ArrayList _receivedMsg = new ArrayList(); //收到的消息
   private string _FactoryCode = string.Empty;

   /// <summary>
   /// 接受的信息
   /// </summary>
   public ArrayList ReceivedMessage { get { return _receivedMsg; } }

   public ChatConnection() { }
   public ChatConnection(string displayName, string account, string factoryCode, string ip, int port, ChatState state)
   {
      _Account = account;
      _DisplayName = displayName;
      _IP = ip;
      _Port = port;
      _State = state;
      _FactoryCode = factoryCode;
   }

   /// <summary>
   /// 用户头像
   /// </summary>
   public Image PhotoIcon
   {
      get { return _PhotoIcon; }
      set { _PhotoIcon = value; }
   }

   /// <summary>
   /// 连线状态
   /// </summary>
   public ChatState ConnectionState
   {
      get { return _State; }
      set { _State = value; }
   }

   /// <summary>
   /// 端口
   /// </summary>
   public int Port
   {
      get { return _Port; }
      set { _Port = value; }
   }

   /// <summary>
   /// 显示名称
   /// </summary>
   public string DisplayName
   {
      get { return _DisplayName; }
      set { _DisplayName = value; }
   }

   /// <summary>
   /// 用户帐号
   /// </summary>
   public string Account
   {
      get { return _Account; }
      set { _Account = value; }
   }

   public string FactoryCode
   {
      get { return _FactoryCode; }
      set { _FactoryCode = value; }
   }

   /// <summary>
   /// 用户IP地址
   /// </summary>
   public string IP
   {
      get { return _IP; }
      set { _IP = value; }
   }

   public override string ToString()
   {
      return _DisplayName;
   }

   /// <summary>
   /// 更新连线资料
   /// </summary>
   /// <param name="conn"></param>
   public void Update(ChatConnection conn)
   {
      this.Account = conn.Account;
      this.ConnectionState = conn.ConnectionState;
      this.DisplayName = conn.DisplayName;
      this.IP = conn.IP;
      this.PhotoIcon = conn.PhotoIcon;
      this.Port = conn.Port;
   }
}

4. 消息定义(一个基类，及3个派生类)

/// <summary>
/// 消息定义基类
/// </summary>
[Serializable]
public class cmdBase { }

//通知好友上线
[Serializable]
public class cmdNotifyOnline : cmdBase
{
   private string _sender = string.Empty;
   public string Sender { get { return _sender; } }

   private int _Port = -1;
   public int Port { get { return _Port; } }

   private string _IP = string.Empty;
   public string IP { get { return _IP; } }

   private string _FactoryCode = string.Empty;
   public string FactoryCode { get { return _FactoryCode; } }

   private string _NickName = string.Empty;
   public string NickName { get { return _NickName; } }

   public cmdNotifyOnline(string sender, string ip, int port, string factory, string nickName)
   {
      _sender = sender;
      _Port = port;
      _IP = ip;
      _FactoryCode = factory;
      _NickName = nickName;
   }
}

/// <summary>
/// 用户登出时通知所有用户删除连接
/// </summary>
[Serializable]
public class cmdExit : cmdBase
{
   private string _sender = string.Empty;
   public string Sender { get { return _sender; } }

   public cmdExit(string sender)
   {
      _sender = sender;
   }
}

/// <summary>
/// 普通消息
/// </summary>
[Serializable]
public class cmdMessage : cmdBase
{
   private string _Content = string.Empty;//消息内容
   private string _Sender = string.Empty;//发送人

   public string Content { get { return _Content; } }
   public string Sender { get { return _Sender; } }

   public cmdMessage(string sender, string msg)
   {
      _Sender = sender;
      _Content = msg;
   }
}

程序：VS2008+DEV9.2X+SQL2005 版本v1.0

SQL连接配置：

修改debug\SystemSettings.xml 文件的ConnectionString

C/S框架网原创作品，如转载请注明出处: by www.csframework.com

Source Code for VIP:

点击下载附件 (如下载失败,请邮件通知我们寄回给您，或QQ:23404761留言．)

参考文档：

C#仿QQ聊天程序v1.0(客户端管理类)
C#仿QQ聊天程序v1.0(IConnectionList接口实现)
[原创]C#一键隐藏QQ/MSN,显示/隐藏系统托盘图标,获取托盘图标
[原创]C# UDP穿越NAT,UDP打洞,UDP Hole Punching源代码(2)
[原创]C# UDP穿越NAT,UDP打洞,UDP Hole Punching源代码(1)
【原创】WCF开发框架 - 采用wsHttpBinding及basicHttpBinding连接https协议的WCF服务
CSFramework.COM原创：全球国家名称列表国旗图标库导入程序（C#+VS2015)
原创：SQLJOB作业自动备份数据库并自动清除备份历史记录
原创：C#源码 GridMovetor按回车自动跳到下一列或自动新增记录(www.csframework.com)
原创：C/S架构快速开发框架通用可配置的数据修改日志解决方案
【原创】WebApi开发框架：Token生成、Token缓存原理、Token验证、令牌机制与原理
【原创】C# Winform Dev自动下拉弹框筛选数据PopupContainerEdit组件
【原创】C# Dev用户自定义组件,自动下拉弹框表格过滤数据组件ucMyLookUpEdit
【原创】C# 深度拷贝对象使用.NET反射+递归原理实现深度克隆
原创Winform快速开发框架平台Oracle版本（三层架构+C#.NET+Oracle数据库）
C#微信支付完成前端回调通知notify_url完整版源码|CSframework.com原创文章