这期内容当中小编将会给大家带来有关怎么在C# .NET中使用Socket框架，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。
1、首先简单讲下C#中Socket的简单使用。
第一步：服务端监听某个端口
第二步：客户端向服务端地址和端口发起Socket连接请求
第三步：服务端收到连接请求后创建Socket连接，并维护这个连接队列。
第四步：客户端和服务端已经建立双工通信（即双向通信），客户端和服务端可以轻松方便的给彼此发送信息。
至于简单使用的具体实现代码全部被我封装到项目中了，如果需要学习简单的实现，可以看我的源码，也可以自行百度，有很多的教程
2、核心，框架的使用
其实，说其为框架，可能有点牵强，因为每个人对框架都有自己的理解，但是类库和框架又有什么本质区别呢？全部都是代码~哈哈，扯远了
首先，空说无凭，先放上所有的代码：
服务端源文件：
SocketServer.cs
using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
namespace Coldairarrow.Util.Sockets
{
/// <summary>
/// Socket服务端
/// </summary>
public class SocketServer
{
#region 构造函数
/// <summary>
/// 构造函数
/// </summary>
/// <param name="ip">监听的IP地址</param>
/// <param name="port">监听的端口</param>
public SocketServer(string ip, int port)
{
_ip = ip;
_port = port;
}
/// <summary>
/// 构造函数,监听IP地址默认为本机0.0.0.0
/// </summary>
/// <param name="port">监听的端口</param>
public SocketServer(int port)
{
_ip = "0.0.0.0";
_port = port;
}
#endregion
#region 内部成员
private Socket _socket = null;
private string _ip = "";
private int _port = 0;
private bool _isListen = true;
private void StartListen()
{
try
{
_socket.BeginAccept(asyncResult =>
{
try
{
Socket newSocket = _socket.EndAccept(asyncResult);
//马上进行下一轮监听,增加吞吐量
if (_isListen)
StartListen();
SocketConnection newClient = new SocketConnection(newSocket, this)
{
HandleRecMsg = HandleRecMsg == null ? null : new Action<byte[], SocketConnection, SocketServer>(HandleRecMsg),
HandleClientClose = HandleClientClose == null ? null : new Action<SocketConnection, SocketServer>(HandleClientClose),
HandleSendMsg = HandleSendMsg == null ? null : new Action<byte[], SocketConnection, SocketServer>(HandleSendMsg),
HandleException = HandleException == null ? null : new Action<Exception>(HandleException)
};
newClient.StartRecMsg();
ClientList.AddLast(newClient);
HandleNewClientConnected?.Invoke(this, newClient);
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
}
}, null);
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
}
}
#endregion
#region 外部接口
/// <summary>
/// 开始服务，监听客户端
/// </summary>
public void StartServer()
{
try
{
//实例化套接字（ip4寻址协议，流式传输，TCP协议）
_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
//创建ip对象
IPAddress address = IPAddress.Parse(_ip);
//创建网络节点对象包含ip和port
IPEndPoint endpoint = new IPEndPoint(address, _port);
//将 监听套接字绑定到 对应的IP和端口
_socket.Bind(endpoint);
//设置监听队列长度为Int32最大值(同时能够处理连接请求数量)
_socket.Listen(int.MaxValue);
//开始监听客户端
StartListen();
HandleServerStarted?.Invoke(this);
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
}
}
/// <summary>
/// 所有连接的客户端列表
/// </summary>
public LinkedList<SocketConnection> ClientList { get; set; } = new LinkedList<SocketConnection>();
/// <summary>
/// 关闭指定客户端连接
/// </summary>
/// <param name="theClient">指定的客户端连接</param>
public void CloseClient(SocketConnection theClient)
{
theClient.Close();
}
#endregion
#region 公共事件
/// <summary>
/// 异常处理程序
/// </summary>
public Action<Exception> HandleException { get; set; }
#endregion
#region 服务端事件
/// <summary>
/// 服务启动后执行
/// </summary>
public Action<SocketServer> HandleServerStarted { get; set; }
/// <summary>
/// 当新客户端连接后执行
/// </summary>
public Action<SocketServer, SocketConnection> HandleNewClientConnected { get; set; }
/// <summary>
/// 服务端关闭客户端后执行
/// </summary>
public Action<SocketServer, SocketConnection> HandleCloseClient { get; set; }
#endregion
#region 客户端连接事件
/// <summary>
/// 客户端连接接受新的消息后调用
/// </summary>
public Action<byte[], SocketConnection, SocketServer> HandleRecMsg { get; set; }
/// <summary>
/// 客户端连接发送消息后回调
/// </summary>
public Action<byte[], SocketConnection, SocketServer> HandleSendMsg { get; set; }
/// <summary>
/// 客户端连接关闭后回调
/// </summary>
public Action<SocketConnection, SocketServer> HandleClientClose { get; set; }
#endregion
}
}using System;
using System.Net.Sockets;
using System.Text;
namespace Coldairarrow.Util.Sockets
{
/// <summary>
/// Socket连接,双向通信
/// </summary>
public class SocketConnection
{
#region 构造函数
public SocketConnection(Socket socket,SocketServer server)
{
_socket = socket;
_server = server;
}
#endregion
#region 私有成员
private readonly Socket _socket;
private bool _isRec=true;
private SocketServer _server = null;
private bool IsSocketConnected()
{
bool part1 = _socket.Poll(1000, SelectMode.SelectRead);
bool part2 = (_socket.Available == 0);
if (part1 && part2)
return false;
else
return true;
}
#endregion
#region 外部接口
/// <summary>
/// 开始接受客户端消息
/// </summary>
public void StartRecMsg()
{
try
{
byte[] container = new byte[1024 * 1024 * 2];
_socket.BeginReceive(container, 0, container.Length, SocketFlags.None, asyncResult =>
{
try
{
int length = _socket.EndReceive(asyncResult);
//马上进行下一轮接受，增加吞吐量
if (length > 0 && _isRec && IsSocketConnected())
StartRecMsg();
if (length > 0)
{
byte[] recBytes = new byte[length];
Array.Copy(container, 0, recBytes, 0, length);
//处理消息
HandleRecMsg?.Invoke(recBytes, this, _server);
}
else
Close();
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
Close();
}
}, null);
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
Close();
}
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="bytes">数据字节</param>
public void Send(byte[] bytes)
{
try
{
_socket.BeginSend(bytes, 0, bytes.Length, SocketFlags.None, asyncResult =>
{
try
{
int length = _socket.EndSend(asyncResult);
HandleSendMsg?.Invoke(bytes, this, _server);
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
}
}, null);
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
}
}
/// <summary>
/// 发送字符串（默认使用UTF-8编码）
/// </summary>
/// <param name="msgStr">字符串</param>
public void Send(string msgStr)
{
Send(Encoding.UTF8.GetBytes(msgStr));
}
/// <summary>
/// 发送字符串（使用自定义编码）
/// </summary>
/// <param name="msgStr">字符串消息</param>
/// <param name="encoding">使用的编码</param>
public void Send(string msgStr,Encoding encoding)
{
Send(encoding.GetBytes(msgStr));
}
/// <summary>
/// 传入自定义属性
/// </summary>
public object Property { get; set; }
/// <summary>
/// 关闭当前连接
/// </summary>
public void Close()
{
try
{
_isRec = false;
_socket.Disconnect(false);
_server.ClientList.Remove(this);
HandleClientClose?.Invoke(this, _server);
_socket.Close();
_socket.Dispose();
GC.Collect();
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
}
}
#endregion
#region 事件处理
/// <summary>
/// 客户端连接接受新的消息后调用
/// </summary>
public Action<byte[], SocketConnection, SocketServer> HandleRecMsg { get; set; }
/// <summary>
/// 客户端连接发送消息后回调
/// </summary>
public Action<byte[], SocketConnection, SocketServer> HandleSendMsg { get; set; }
/// <summary>
/// 客户端连接关闭后回调
/// </summary>
public Action<SocketConnection, SocketServer> HandleClientClose { get; set; }
/// <summary>
/// 异常处理程序
/// </summary>
public Action<Exception> HandleException { get; set; }
#endregion
}
}using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
namespace Coldairarrow.Util.Sockets
{
/// <summary>
/// Socket客户端
/// </summary>
public class SocketClient
{
#region 构造函数
/// <summary>
/// 构造函数,连接服务器IP地址默认为本机127.0.0.1
/// </summary>
/// <param name="port">监听的端口</param>
public SocketClient(int port)
{
_ip = "127.0.0.1";
_port = port;
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="ip">监听的IP地址</param>
/// <param name="port">监听的端口</param>
public SocketClient(string ip, int port)
{
_ip = ip;
_port = port;
}
#endregion
#region 内部成员
private Socket _socket = null;
private string _ip = "";
private int _port = 0;
private bool _isRec=true;
private bool IsSocketConnected()
{
bool part1 = _socket.Poll(1000, SelectMode.SelectRead);
bool part2 = (_socket.Available == 0);
if (part1 && part2)
return false;
else
return true;
}
/// <summary>
/// 开始接受客户端消息
/// </summary>
public void StartRecMsg()
{
try
{
byte[] container = new byte[1024 * 1024 * 2];
_socket.BeginReceive(container, 0, container.Length, SocketFlags.None, asyncResult =>
{
try
{
int length = _socket.EndReceive(asyncResult);
//马上进行下一轮接受，增加吞吐量
if (length > 0 && _isRec && IsSocketConnected())
StartRecMsg();
if (length > 0)
{
byte[] recBytes = new byte[length];
Array.Copy(container, 0, recBytes, 0, length);
//处理消息
HandleRecMsg?.Invoke(recBytes, this);
}
else
Close();
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
Close();
}
}, null);
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
Close();
}
}
#endregion
#region 外部接口
/// <summary>
/// 开始服务，连接服务端
/// </summary>
public void StartClient()
{
try
{
//实例化 套接字 （ip4寻址协议，流式传输，TCP协议）
_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
//创建 ip对象
IPAddress address = IPAddress.Parse(_ip);
//创建网络节点对象 包含 ip和port
IPEndPoint endpoint = new IPEndPoint(address, _port);
//将 监听套接字 绑定到 对应的IP和端口
_socket.BeginConnect(endpoint, asyncResult =>
{
try
{
_socket.EndConnect(asyncResult);
//开始接受服务器消息
StartRecMsg();
HandleClientStarted?.Invoke(this);
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
}
}, null);
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
}
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="bytes">数据字节</param>
public void Send(byte[] bytes)
{
try
{
_socket.BeginSend(bytes, 0, bytes.Length, SocketFlags.None, asyncResult =>
{
try
{
int length = _socket.EndSend(asyncResult);
HandleSendMsg?.Invoke(bytes, this);
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
}
}, null);
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
}
}
/// <summary>
/// 发送字符串（默认使用UTF-8编码）
/// </summary>
/// <param name="msgStr">字符串</param>
public void Send(string msgStr)
{
Send(Encoding.UTF8.GetBytes(msgStr));
}
/// <summary>
/// 发送字符串（使用自定义编码）
/// </summary>
/// <param name="msgStr">字符串消息</param>
/// <param name="encoding">使用的编码</param>
public void Send(string msgStr, Encoding encoding)
{
Send(encoding.GetBytes(msgStr));
}
/// <summary>
/// 传入自定义属性
/// </summary>
public object Property { get; set; }
/// <summary>
/// 关闭与服务器的连接
/// </summary>
public void Close()
{
try
{
_isRec = false;
_socket.Disconnect(false);
HandleClientClose?.Invoke(this);
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
}
}
#endregion
#region 事件处理
/// <summary>
/// 客户端连接建立后回调
/// </summary>
public Action<SocketClient> HandleClientStarted { get; set; }
/// <summary>
/// 处理接受消息的委托
/// </summary>
public Action<byte[], SocketClient> HandleRecMsg { get; set; }
/// <summary>
/// 客户端连接发送消息后回调
/// </summary>
public Action<byte[], SocketClient> HandleSendMsg { get; set; }
/// <summary>
/// 客户端连接关闭后回调
/// </summary>
public Action<SocketClient> HandleClientClose { get; set; }
/// <summary>
/// 异常处理程序
/// </summary>
public Action<Exception> HandleException { get; set; }
#endregion
}
}上面放上的是框架代码，接下来介绍下如何使用
首先，服务端使用方式：
using Coldairarrow.Util.Sockets;
using System;
using System.Text;
namespace Console_Server
{
class Program
{
static void Main(string[] args)
{
//创建服务器对象，默认监听本机0.0.0.0，端口12345
SocketServer server = new SocketServer(12345);
//处理从客户端收到的消息
server.HandleRecMsg = new Action<byte[], SocketConnection, SocketServer>((bytes, client, theServer) =>
{
string msg = Encoding.UTF8.GetString(bytes);
Console.WriteLine($"收到消息:{msg}");
});
//处理服务器启动后事件
server.HandleServerStarted = new Action<SocketServer>(theServer =>
{
Console.WriteLine("服务已启动************");
});
//处理新的客户端连接后的事件
server.HandleNewClientConnected = new Action<SocketServer, SocketConnection>((theServer, theCon) =>
{
Console.WriteLine($@"一个新的客户端接入，当前连接数：{theServer.ClientList.Count}");
});
//处理客户端连接关闭后的事件
server.HandleClientClose = new Action<SocketConnection, SocketServer>((theCon, theServer) =>
{
Console.WriteLine($@"一个客户端关闭，当前连接数为：{theServer.ClientList.Count}");
});
//处理异常
server.HandleException = new Action<Exception>(ex =>
{
Console.WriteLine(ex.Message);
});
//服务器启动
server.StartServer();
while (true)
{
Console.WriteLine("输入:quit，关闭服务器");
string op = Console.ReadLine();
if (op == "quit")
break;
}
}
}
}客户端使用方式：
using Coldairarrow.Util.Sockets;
using System;
using System.Text;
namespace Console_Client
{
class Program
{
static void Main(string[] args)
{
//创建客户端对象，默认连接本机127.0.0.1,端口为12345
SocketClient client = new SocketClient(12345);
//绑定当收到服务器发送的消息后的处理事件
client.HandleRecMsg = new Action<byte[], SocketClient>((bytes, theClient) =>
{
string msg = Encoding.UTF8.GetString(bytes);
Console.WriteLine($"收到消息:{msg}");
});
//绑定向服务器发送消息后的处理事件
client.HandleSendMsg = new Action<byte[], SocketClient>((bytes, theClient) =>
{
string msg = Encoding.UTF8.GetString(bytes);
Console.WriteLine($"向服务器发送消息:{msg}");
});
//开始运行客户端
client.StartClient();
while (true)
{
Console.WriteLine("输入:quit关闭客户端，输入其它消息发送到服务器");
string str = Console.ReadLine();
if (str == "quit")
{
client.Close();
break;
}
else
{
client.Send(str);
}
}
}
}
}最后运行测试截图：
上述就是小编为大家分享的怎么在C# .NET中使用Socket框架了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注亿速云行业资讯频道。
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