C# 通讯网关开发
楼主从12年毕业大部分时间一直从事于通讯网关的开发，刚刚学那会连C#是啥都不知道，就直接入手网关开发，前前后后到现在也算是弄了5、6个通讯协议，后来看到北风之神的socket框架和supersocket也是研究了很久，就在想着去自己搭建一个通讯网关框架。
框架概述
这个框架原形当然是微软的高性能服务器框架，其中封装了一些业务逻辑等处理。
网络层
1 /// <summary>
2 /// 服务接口
3 /// </summary>
4 public interface IServer
5 {
6 string Name { get; }
7 void Start(int port);
8 void Start(EndPoint localPoint);
9 void Stop();
10 }
/// <summary>
/// 请求接口
/// </summary>
public interface IRequestInfo
{
/// <summary>
/// 唯一编号
/// </summary>
string Key { get; set; }
}
每种协议都有特定的格式，这个类就就是按特定命令格式生成的请求
1 /// <summary>
2 /// 消息过滤器
3 /// </summary>
4 /// <typeparam name="TRequestInfo">请求接口</typeparam>
5 public interface IReceiveFilter<TRequestInfo>
6 where TRequestInfo : IRequestInfo
7 {
8 /// <summary>
9 /// 消息解析
10 /// </summary>
11 /// <param name="message"></param>
12 /// <returns></returns>
13 List<TRequestInfo> Filter(ref byte[] message);
14 }
消息的过滤器，处理tcp连接中的粘包断包等问题
1 /// <summary>
2 /// 网关接口
3 /// </summary>
4 /// <typeparam name="TRequestInfo">请求数据</typeparam>
5 /// <typeparam name="TReceiveFilter">消息过滤器</typeparam>
6 /// <typeparam name="TCommandFactory">命令工厂</typeparam>
7 public interface IGater<TRequestInfo, TReceiveFilter, out TCommandFactory>
8 where TRequestInfo : IRequestInfo
9 where TReceiveFilter : IReceiveFilter<TRequestInfo>
10 {
11 /// <summary>
12 /// 配置
13 /// </summary>
14 BaseConfig Config { get; }
15 /// <summary>
16 /// 命令工厂
17 /// </summary>
18 TCommandFactory CommandFactory { get; }
19 /// <summary>
20 /// 服务程序
21 /// </summary>
22 TcpServer<TReceiveFilter, TRequestInfo> Server { get; }
23 }
网关接口层
1 /// <summary>
2 /// 基础网关
3 /// </summary>
4 /// <typeparam name="TRequestInfo">请求数据接口</typeparam>
5 /// <typeparam name="TCommand">客户端命令接口</typeparam>
6 /// <typeparam name="TReceiveFilter">消息过滤器接口</typeparam>
7 /// <typeparam name="TCommandFactory">客户端命令解析工厂</typeparam>
8 public abstract class BaseGate<TRequestInfo, TCommand, TReceiveFilter, TCommandFactory> : IGater<TRequestInfo, TReceiveFilter, TCommandFactory>
9 where TRequestInfo : IRequestInfo
10 where TCommand : ICommand<TRequestInfo>
11 where TReceiveFilter : IReceiveFilter<TRequestInfo>, new()
12 where TCommandFactory : ICommandFactory<TRequestInfo, TCommand>
13 {
14 /// <summary>
15 /// 配置
16 /// </summary>
17 public BaseConfig Config { get; private set; }
18 /// <summary>
19 /// 命令工厂
20 /// </summary>
21 public TCommandFactory CommandFactory { get; private set; }
22 /// <summary>
23 /// 服务
24 /// </summary>
25 public TcpServer<TReceiveFilter, TRequestInfo> Server { get; private set; }
26
27 /// <summary>
28 /// 构造函数
29 /// </summary>
30 /// <param name="server">socekt服务</param>
31 /// <param name="commandFactory">命令工厂</param>
32 /// <param name="config">服务配置</param>
33 /// <param name="clientEvent">客户端事件处理</param>
34 protected BaseGate(TcpServer<TReceiveFilter, TRequestInfo> server, TCommandFactory commandFactory, BaseConfig config, IClientEvent clientEvent)
35 {
36 CommandFactory = commandFactory;
37 Server = server;
38 Config = config;
39 server.ClientOnClosed += clientEvent.ClientOnClosed;
40 server.ClientOnConnected += clientEvent.ClientOnConnected;
41 server.ReceiveNewData += ReceiveNewData;
42 }
43
44 /// <summary>
45 /// 新数据处理
46 /// </summary>
47 /// <param name="request"></param>
48 private void ReceiveNewData(TRequestInfo request)
49 {
50 var item = CommandFactory.CreateCommand(request);
51 if (item != null)
52 {
53 item.ExcuteCommand(request);
54 }
55 }
56
57 /// <summary>
58 /// 初始化网关
59 /// </summary>
60 public void Init()
61 {
62
63 Server.Init(Config.MaxClientCounts, Config.BufferSize);
64 Server.InitFilter(new TReceiveFilter());
65 }
66 /// <summary>
67 /// 启动网关
68 /// </summary>
69 public void Start()
70 {
71 Server.Start(Config.Port);
72 }
73 }
网关的基本实现
1 /// <summary>
2 /// 客户端连接处理接口
3 /// </summary>
4 public interface IClientEvent
5 {
6 /// <summary>
7 /// 新连接
8 /// </summary>
9 /// <param name="sender"></param>
10 /// <param name="e"></param>
11 void ClientOnConnected(object sender, ClientEventArgs e);
12 /// <summary>
13 /// 连接断开
14 /// </summary>
15 /// <param name="sender"></param>
16 /// <param name="e"></param>
17 void ClientOnClosed(object sender, ClientEventArgs e);
18 }
这个是客户端的连接处理，是根据requestinfo中key来标识唯一id，也可以在网关中实现，我是单独摘开的，因为可能架构多个服务器的话，多种协议
业务逻辑层
这里其实是封装了命令的处理，提供工厂接口以及命令接口，根据request请求生成
1 /// <summary>
2 /// 命令接口
3 /// </summary>
4 /// <typeparam name="TRequestInfo">请求接口</typeparam>
5 public interface ICommand<in TRequestInfo>
6 where TRequestInfo : IRequestInfo
7 {
8 /// <summary>
9 /// 客户端标识
10 /// </summary>
11 string Key { get; set; }
12 /// <summary>
13 /// 执行命令
14 /// </summary>
15 /// <param name="request"></param>
16 void ExcuteCommand(TRequestInfo request);
17 }
1 /// <summary>
2 /// 客户端命令工厂
3 /// </summary>
4 /// <typeparam name="TRequestInfo">请求接口</typeparam>
5 /// <typeparam name="TCommand">命令接口</typeparam>
6 public interface ICommandFactory<in TRequestInfo, out TCommand>
7 where TRequestInfo : IRequestInfo
8 where TCommand : ICommand<TRequestInfo>
9 {
10 /// <summary>
11 /// 构造命令
12 /// </summary>
13 /// <param name="request"></param>
14 /// <returns></returns>
15 TCommand CreateCommand(TRequestInfo request);
16 }
大家只要继承上面的接口，基本就可以实现了。
这是下载地址，大家都看看，顺便给点意见
http://pan.baidu.com/s/1dDIOkyH