Windows服务完成Server端的Socket通信

1、打开Visual Studio.Net2003，单击菜单中的“文件”——>“新建”——>“项目”，在弹出的对话框左侧选择“Visual C#项目”，在右侧选择“类库”，下方的名称中输入“SocketLibrary”，位置自己随便选择一个路径。

2、删除自动创建的Class1.cs，新建如下的类名文件“Client.cs”、“Connection.cs”、“ConnectionCollection.cs”、“Message.cs”、“MessageCollection.cs”、“Server.cs”、“SocketBase.cs”和“SocketFactory.cs”。

3、各个类文件的代码如下：
(1)、Client.cs文件中的代码：

using System;
using System.Net;
using System.Net.Sockets;

namespace SocketLibrary
{

public class Client:SocketBase
{
public const int CONNECTTIMEOUT = 10;
public Client()
{

}
public Connection StartClient(IPAddress ipaddress,int port) {
TcpClient client = new TcpClient();
client.SendTimeout = CONNECTTIMEOUT;
client.ReceiveTimeout = CONNECTTIMEOUT;

client.Connect(ipaddress,port);

this._connections.Add(new Connection(client.GetStream()));
this.StartListenAndSend();
return new Connection(client.GetStream());
}
public void StopClient() {

this.EndListenAndSend();
}
}
}

(2)、Connection.cs文件中的代码：
using System;
using System.Net;
using System.Net.Sockets;

namespace SocketLibrary
{
/// <summary>
/// Connection 的摘要说明。
/// </summary>
public class Connection
{
public NetworkStream NetworkStream {
get{return _networkStream;}
set{_networkStream = value;}
}
private NetworkStream _networkStream;
public string ConnectionName {
get{return _connectionName;}
set{_connectionName = value;}
}
private string _connectionName;
public Connection(NetworkStream networkStream,string connectionName)
{
this._networkStream = networkStream;
this._connectionName = connectionName;
}
public Connection(NetworkStream networkStream):this(networkStream,string.Empty) {
}
}
}

(3)、ConnectionCollection.cs文件中的代码：

using System;

namespace SocketLibrary {
public class ConnectionCollection:System.Collections.CollectionBase {
public ConnectionCollection() {

}
public void Add(Connection value) {
List.Add(value);
}
public Connection this[int index] {
get {
return List[index] as Connection;
}
set{
List[index] = value;
}
}
public Connection this[string connectionName] {
get {
foreach(Connection connection in List) {
if(connection.ConnectionName == connectionName)
return connection;
}
return null;
}
}
}
}

(4)、Message.cs文件中的代码：

using System;

namespace SocketLibrary
{
public class Message
{
public enum CommandHeader:byte {
SendMessage = 1
}
public Connection SendToOrReceivedFrom;
public int MessageLength;
public CommandHeader Command;
public byte MainVersion;
public byte SecondVersion;

public string MessageBody;

public bool Sent;

public Message()
{
SendToOrReceivedFrom = null;
Sent = false;
}
public Message(CommandHeader command,byte mainVersion,byte secondVersion,string messageBody):this() {
this.Command = command;
this.MainVersion = mainVersion;
this.SecondVersion = secondVersion;
this.MessageBody = messageBody;
}
public byte[] ToBytes() {
this.MessageLength = 7 + SocketFactory.DefaultEncoding.GetByteCount(this.MessageBody);//计算消息总长度。消息头长度为7加上消息体的长度。
byte[] buffer = new byte[this.MessageLength];
//先将长度的4个字节写入到数组中。
BitConverter.GetBytes(this.MessageLength).CopyTo(buffer,0);
//将CommandHeader写入到数组中
buffer[4] = (byte)this.Command;
//将主版本号写入到数组中
buffer[5] = (byte)this.MainVersion;
//将次版本号写入到数组中
buffer[6] = (byte)this.SecondVersion;

//消息头已写完，现在写消息体。
byte[] body = new byte[this.MessageLength - 7];
SocketFactory.DefaultEncoding.GetBytes(this.MessageBody).CopyTo(buffer,7);
return buffer;
}
public static Message Parse(Connection connection) {
Message message = new Message();
//先读出前四个字节，即Message长度
byte[] buffer = new byte[4];
if(connection.NetworkStream.DataAvailable) {
int count = connection.NetworkStream.Read(buffer,0,4);
if(count == 4) {
message.MessageLength = BitConverter.ToInt32(buffer,0);
}
else
throw new Exception("网络流长度不正确");
}
else
throw new Exception("目前网络不可读");
//读出消息的其它字节
buffer = new byte[message.MessageLength - 4];
if(connection.NetworkStream.DataAvailable) {
int count = connection.NetworkStream.Read(buffer,0,buffer.Length);
if(count == message.MessageLength -4) {
message.Command = (CommandHeader)buffer[0];
message.MainVersion = buffer[1];
message.SecondVersion = buffer[2];

//读出消息体
message.MessageBody = SocketFactory.DefaultEncoding.GetString(buffer,3,buffer.Length - 3);
message.SendToOrReceivedFrom = connection;

return message;
}
else
throw new Exception("网络流长度不正确");
}
else
throw new Exception("目前网络不可读");
}

}
}

(5)、MessageCollection.cs文件中的代码：
using System;

namespace SocketLibrary
{
public class MessageCollection:System.Collections.CollectionBase
{
public MessageCollection()
{

}
public void Add(Message value) {
List.Add(value);
}
public Message this[int index] {
get {
return List[index] as Message;
}
set{
List[index] = value;
}
}
public MessageCollection this[Connection connection] {
get {
MessageCollection collection = new MessageCollection();
foreach(Message message in List) {
if(message.SendToOrReceivedFrom == connection)
collection.Add(message);
}
return collection;
}
}
}
}

(6)、Server.cs文件中的代码：

using System;
using System.Net;
using System.Net.Sockets;

namespace SocketLibrary
{
public class Server:SocketBase
{

private TcpListener _listener;
public Server()
{
this._connections = new ConnectionCollection();
}
protected System.Threading.Thread _listenConnection;

public void StartServer(int port) {
_listener = new TcpListener(IPAddress.Any, port);
_listener.Start();

_listenConnection = new System.Threading.Thread(new System.Threading.ThreadStart(Start));
_listenConnection.Start();

this.StartListenAndSend();
}
public void StopServer() {
_listenConnection.Abort();
this.EndListenAndSend();

}
private void Start() {
try {
while(true) {
if(_listener.Pending()) {
TcpClient client = _listener.AcceptTcpClient();
NetworkStream stream = client.GetStream();
Connection connection = new Connection(stream);
this._connections.Add(connection);
this.OnConnected(this,new ConnectionEventArgs(connection,new Exception("连接成功")));
}
System.Threading.Thread.Sleep(200);
}
}
catch {
}
}

}
}

(7)、SocketBase.cs文件中的代码：

using System;

namespace SocketLibrary
{
/// <summary>
/// SocketBase 的摘要说明。
/// </summary>
public class SocketBase
{
public class MessageEventArgs:EventArgs {
public Message Message;
public Connection Connecction;
public MessageEventArgs(Message message,Connection connection) {
this.Message = message;
this.Connecction = connection;
}
}
public delegate void MessageEventHandler(object sender,MessageEventArgs e);

public class ConnectionEventArgs:EventArgs {
public Connection Connection;
public Exception Exception;
public ConnectionEventArgs(Connection connection,Exception exception) {
this.Connection = connection;
this.Exception = exception;
}
}
public delegate void ConnectionHandler(object sender,ConnectionEventArgs e);

public ConnectionCollection Connections {
get{return _connections;}
set{_connections = value;}
}
protected ConnectionCollection _connections;

public MessageCollection messageQueue {
get{return _messageQueue;}
set{_messageQueue = value;}
}
protected MessageCollection _messageQueue;

public SocketBase()
{
this._connections = new ConnectionCollection();
this._messageQueue = new MessageCollection();
}
protected void Send(Message message) {
this.Send(message,message.SendToOrReceivedFrom);
}
protected void Send(Message message,Connection connection) {
byte[] buffer = message.ToBytes();
lock(this) {
connection.NetworkStream.Write(buffer,0,buffer.Length);
}
}

protected System.Threading.Thread _listenningthread;
protected System.Threading.Thread _sendthread;
protected virtual void Sendding() {
try {
while(true) {
System.Threading.Thread.Sleep(200);
for(int i = 0 ; i < this.messageQueue.Count ; i++) {
if(this.messageQueue[i].SendToOrReceivedFrom != null) {
this.Send(this.messageQueue[i]);
this.OnMessageSent(this,new MessageEventArgs(this.messageQueue[i],this.messageQueue[i].SendToOrReceivedFrom));
}
else {//对每一个连接都发送此消息
for(int j = 0 ; j < this.Connections.Count ; j++) {
this.Send(this.messageQueue[i],this.Connections[j]);
this.OnMessageSent(this,new MessageEventArgs(this.messageQueue[i],this.Connections[j]));
}
}
this.messageQueue[i].Sent = true;
}
//清除所有已发送消息
for(int i = this.messageQueue.Count - 1 ; i > -1 ; i--) {
if(this.messageQueue[i].Sent)
this.messageQueue.RemoveAt(i);
}
}
}catch{
}
}
protected virtual void Listenning() {
try {
while(true) {
System.Threading.Thread.Sleep(200);
foreach(Connection connection in this._connections) {
if(connection.NetworkStream.CanRead && connection.NetworkStream.DataAvailable) {
try {
Message message = Message.Parse(connection);
this.OnMessageReceived(this,new MessageEventArgs(message,connection));
}
catch(Exception ex) {
connection.NetworkStream.Close();
this.OnConnectionClose(this,new ConnectionEventArgs(connection,ex));
}
}
}
}
}
catch {
}
}

protected void StartListenAndSend() {
_listenningthread = new System.Threading.Thread(new System.Threading.ThreadStart(Listenning));
_listenningthread.Start();
_sendthread = new System.Threading.Thread(new System.Threading.ThreadStart(Sendding));
_sendthread.Start();
}
public void EndListenAndSend() {
_listenningthread.Abort();
_sendthread.Abort();
}

public event MessageEventHandler MessageReceived;
public event MessageEventHandler MessageSent;
public event ConnectionHandler ConnectionClose;
public event ConnectionHandler Connected;

public void OnMessageReceived(object sender,MessageEventArgs e) {
if(MessageReceived != null)
this.MessageReceived(sender,e);
}
public void OnMessageSent(object sender,MessageEventArgs e) {
if(MessageSent != null)
this.MessageSent(sender,e);
}
public void OnConnectionClose(object sender,ConnectionEventArgs e) {
if(ConnectionClose != null)
this.ConnectionClose(sender,e);
}
public void OnConnected(object sender,ConnectionEventArgs e) {
if(Connected != null)
this.Connected(sender,e);
}
}
}

(8)、SocketFactory.cs文件中的代码：

using System;
using System.Net;
using System.Net.Sockets;

namespace SocketLibrary {
/// <summary>
/// 网络通信组件
/// </summary>
public class SocketFactory {
public static System.Text.Encoding DefaultEncoding = System.Text.Encoding.GetEncoding("GB2312");
}
}

4、将文件和代码建立和粘贴完成后，运行此类库，会在程序所在路径文件夹里的“bin\Debug\”下找到“SocketLibrary.dll”文件，下面开发的Windows服务就需要引用这个dll文件。

      第二步再来开发出Windows服务。

1、打开Visual Studio.Net2003，单击菜单中的“文件”——>“新建”——>“项目”，在弹出的对话框左侧选择“Visual C#项目”，在右侧选择“Windows服务”，下方的名称中输入“SocketService”，位置自己随便选择一个路径。

2、删除自动创建的服务文件，新建如下的Windows服务文件“SocketService.cs”。

3、在SocketService.cs文件的设计界面，选择开发环境右侧的“属性”页卡，会在页卡底部发现“添加安装程序(I)”，单击此处后会在解决方案的SocketService工程下多一个服务文件“ProjectInstaller.cs”。

4、在ProjectInstaller.cs文件的设计界面，会看见两个组件“serviceProcessInstaller1”和“serviceInstaller1”。将serviceProcessInstaller1组件的Account属性设置为“LocalSystem”（表示本地系统服务，NetworkService表示网络服务，LocalService表示本地服务，User表示用户服务）；再将serviceInstaller1组件的StartType属性设置为“Automatic”（表示服务自动启动，Manual表示手动启动，Disabled表示禁用）。

5、右击解决方案中的“引用”，选择添加引用，在弹出的对话框中选择“浏览”，将前面的“SocketLibrary.dll”添加到此引用。

6、在系统C盘下建立两个文件“SocketService.ini”和“SocketService.log”。SocketService.ini文件是配置SocketService监听的端口号，打开该ini文件在其中编辑下面的内容“端口号：8088”（双引号请不要输入在ini文件的内容里），而SocketService.log是为了记录有关信息的日志。

7、删除SocketService.cs文件的所有代码，将下面的代码拷贝到该文件中： 
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.ServiceProcess;
using System.IO;
using SocketLibrary;

namespace SocketService
{
public class SocketService : System.ServiceProcess.ServiceBase
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;

public SocketService()
{
// 该调用是 Windows.Forms 组件设计器所必需的。
InitializeComponent();

// TODO: 在 InitComponent 调用后添加任何初始化
}

#region 组件设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器
/// 修改此方法的内容。
/// </summary>
private void InitializeComponent()
{
//
// SocketService
//
this.ServiceName = "SocketService";

}
#endregion

/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
System.ServiceProcess.ServiceBase.Run(new SocketService());
}

SocketLibrary.Server _server = new SocketLibrary.Server();

/// <summary>
/// 设置具体的操作，以便服务可以执行它的工作。
/// </summary>
protected override void OnStart(string[] args)
{
// TODO: 在此处添加代码以启动服务。
try
{
StreamReader ConfigReader = new StreamReader("C:\\SocketService.ini",System.Text.Encoding.GetEncoding("GB2312"));
string str = ConfigReader.ReadToEnd();
string[] Str = str.Split('：');
if (Str.Length == 2)
{
if(Str[0] == "端口号")
{

_server.StartServer(Convert.ToInt32(Str[1]));
StreamWriter LogWriter = new StreamWriter("C:\\SocketService.log",true,System.Text.Encoding.GetEncoding("GB2312"));
LogWriter.Write(DateTime.Now.ToLongDateString() + " " + DateTime.Now.ToShortTimeString() + " SocketService服务已启动\n");
LogWriter.Close();
_server.MessageReceived += new SocketLibrary.SocketBase.MessageEventHandler(_server_MessageReceived);
_server.Connected += new SocketLibrary.SocketBase.ConnectionHandler(_server_Connected);
}
else
{
StreamWriter LogWriter = new StreamWriter("C:\\SocketService.log",true,System.Text.Encoding.GetEncoding("GB2312"));
LogWriter.Write(DateTime.Now.ToLongDateString() + " " + DateTime.Now.ToShortTimeString() + " SocketService.ini文件中无端口号属性，格式应为\"端口号：[输入的端口号]\"\n");
LogWriter.Close();
OnStop();
}
}
else
{
StreamWriter LogWriter = new StreamWriter("C:\\SocketService.log",true,System.Text.Encoding.GetEncoding("GB2312"));
LogWriter.Write(DateTime.Now.ToLongDateString() + " " + DateTime.Now.ToShortTimeString() + " SocketService.ini文件中属性过多，格式应为\"端口号：[输入的端口号]\"\n");
LogWriter.Close();
OnStop();
}
}
catch (Exception e)
{
StreamWriter LogWriter = new StreamWriter("C:\\SocketService.log",true,System.Text.Encoding.GetEncoding("GB2312"));
LogWriter.Write(DateTime.Now.ToLongDateString() + " " + DateTime.Now.ToShortTimeString() + " SocketService服务启动时有错误，错误信息：" + e.Message + "\n");
LogWriter.Close();
OnStop();
}

}

/// <summary>
/// 停止此服务。
/// </summary>
protected override void OnStop()
{
// TODO: 在此处添加代码以执行停止服务所需的关闭操作。
_server.StopServer();
StreamWriter LogWriter = new StreamWriter("C:\\SocketService.log",true,System.Text.Encoding.GetEncoding("GB2312"));
LogWriter.Write(DateTime.Now.ToLongDateString() + " " + DateTime.Now.ToShortTimeString() + " SocketService服务已停止\n");
LogWriter.Close();
}

private void _server_MessageReceived(object sender, SocketLibrary.SocketBase.MessageEventArgs e)
{
StreamWriter LogWriter = new StreamWriter("C:\\SocketService.log",true,System.Text.Encoding.GetEncoding("GB2312"));
LogWriter.Write(DateTime.Now.ToLongDateString() + " " + DateTime.Now.ToShortTimeString() + " " + e.Message.MessageBody + "\n");
LogWriter.Close();
}
private void _server_Connected(object sender, SocketLibrary.SocketBase.ConnectionEventArgs e)
{
StreamWriter LogWriter = new StreamWriter("C:\\SocketService.log",true,System.Text.Encoding.GetEncoding("GB2312"));
LogWriter.Write(DateTime.Now.ToLongDateString() + " " + DateTime.Now.ToShortTimeString() + " " + e.Exception.Message + "\n");
LogWriter.Close();
}
}
}

8、在Visual Studio.Net2003的菜单上选择“生成”——>“重新生成解决方案”，当生成成功后，会在程序所在路径文件夹里的“bin\Debug\”下找到“SocketService.exe”文件，记住这个路径和文件名，下一步需要用到。

9、打开“Visual Studio .NET 2003 命令提示”（应该都知道如何打开吧，不知道的可以在评论中询问）。在其中输入“installutil [第8步中的路径和文件名]”（例如：installutil C:\SocketService\bin\Debug\SocketService.exe），按下回车，将会在本机上安装刚开发好的Windows服务，如果要卸载安装过的Windows服务请在“Visual Studio .NET 2003 命令提示”中输入“installutil /u [第8步中的路径和文件名]”（例如：installutil
/u C:\SocketService\bin\Debug\SocketService.exe）。

10、制作Windows服务的安装部署工程（略）。

      第三步最后开发出一个Socket通信的客户端来验证此服务。

1、和以往建立C/S程序的过程一样，只是将工程名称改为“SocketClientTest”。

2、删除自动创建的Form1，新建窗体“CFrom”。

3、窗体控件与布局见下图：



4、在引用中添加“SocketLibrary.dll”引用（添加方法和SocketService工程添加方法相同）

5、后台代码如下：
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace SocketClientTest
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class CForm : System.Windows.Forms.Form
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;

public CForm()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();

//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}

/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.button1 = new System.Windows.Forms.Button();
this.textBox1 = new System.Windows.Forms.TextBox();
this.button2 = new System.Windows.Forms.Button();
this.button3 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(40, 24);
this.button1.Name = "button1";
this.button1.TabIndex = 0;
this.button1.Text = "连接";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(24, 80);
this.textBox1.Name = "textBox1";
this.textBox1.TabIndex = 1;
this.textBox1.Text = "textBox1";
//
// button2
//
this.button2.Location = new System.Drawing.Point(144, 80);
this.button2.Name = "button2";
this.button2.TabIndex = 2;
this.button2.Text = "发送";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// button3
//
this.button3.Location = new System.Drawing.Point(144, 24);
this.button3.Name = "button3";
this.button3.TabIndex = 3;
this.button3.Text = "停止";
this.button3.Click += new System.EventHandler(this.button3_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(292, 126);
this.Controls.Add(this.button3);
this.Controls.Add(this.button2);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.button1);
this.Name = "CForm";
this.Text = "CForm";
this.Load += new System.EventHandler(this.CForm_Load);
this.ResumeLayout(false);

}
#endregion

/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new CForm());
}

private System.Windows.Forms.Button button1;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.Button button3;
SocketLibrary.Client client;
private void CForm_Load(object sender, System.EventArgs e)
{
client = new SocketLibrary.Client();

SocketLibrary.SocketFactory factory = new SocketLibrary.SocketFactory();
}

private void button1_Click(object sender, System.EventArgs e) {
client.StartClient(System.Net.IPAddress.Parse("192.168.5.9"),8088);//此处输入自己的计算机IP地址，端口需和SocketService.ini中的端口号一样
}

private void button2_Click(object sender, System.EventArgs e) {
SocketLibrary.Message message = new SocketLibrary.Message(SocketLibrary.Message.CommandHeader.SendMessage,1,1,textBox1.Text);
client.messageQueue.Add(message);
}

private void button3_Click(object sender, System.EventArgs e) {
client.StopClient();
}
}
}
6、运行程序，点击CForm中的“连接”按钮，再在TextBox1中输入部分信息，单击“发送”按钮，看看在C:\SocketService.log中是否记录了CForm窗口中TextBox1中的内容。