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我在問這個問題之前只是搜索一下，在C＃中尋找TCP服務器和客戶端的例子。多線程TCP服務器和客戶端
我發現this鏈接，我只是使用鏈接給出的代碼，但不幸的是有一個問題，我已經放養了！
下面的代碼是用於服務器的完整代碼（控制檯）
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
namespace TCP_Server_Console
{
class Program
{
static void Main(string[] args)
{
TcpListener serverSocket = new TcpListener(8888);
int requestCount = 0;
TcpClient clientSocket = default(TcpClient);
serverSocket.Start();
Console.WriteLine(" >> Server Started");
clientSocket = serverSocket.AcceptTcpClient();
Console.WriteLine(" >> Accept connection from client");
requestCount = 0;
while ((true))
{
try
{
requestCount = requestCount + 1;
NetworkStream networkStream = clientSocket.GetStream();
byte[] bytesFrom = new byte[10025];
networkStream.Read(bytesFrom, 0, (int)clientSocket.ReceiveBufferSize);
string dataFromClient = System.Text.Encoding.ASCII.GetString(bytesFrom);
dataFromClient = dataFromClient.Substring(0, dataFromClient.IndexOf("$"));
Console.WriteLine(" >> Data from client - " + dataFromClient);
string serverResponse = "Last Message from client" + dataFromClient;
Byte[] sendBytes = Encoding.ASCII.GetBytes(serverResponse);
networkStream.Write(sendBytes, 0, sendBytes.Length);
networkStream.Flush();
Console.WriteLine(" >> " + serverResponse);
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
clientSocket.Close();
serverSocket.Stop();
Console.WriteLine(" >> exit");
Console.ReadLine();
}
}
}
/*HandleClient Class */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace TCP_Server_Console
{
public class HandleClient
{
TcpClient clientSocket;
string clNo;
public void startClient(TcpClient inClientSocket, string clineNo)
{
this.clientSocket = inClientSocket;
this.clNo = clineNo;
Thread ctThread = new Thread(doChat);
ctThread.Start();
}
private void doChat()
{
int requestCount = 0;
byte[] bytesFrom = new byte[10025];
string dataFromClient = null;
Byte[] sendBytes = null;
string serverResponse = null;
string rCount = null;
requestCount = 0;
while ((true))
{
try
{
requestCount = requestCount + 1;
NetworkStream networkStream = clientSocket.GetStream();
networkStream.Read(bytesFrom, 0, (int)clientSocket.ReceiveBufferSize);
dataFromClient = System.Text.Encoding.ASCII.GetString(bytesFrom);
dataFromClient = dataFromClient.Substring(0, dataFromClient.IndexOf("$"));
Console.WriteLine(" >> " + "From client-" + clNo + dataFromClient);
rCount = Convert.ToString(requestCount);
serverResponse = "Server to clinet(" + clNo + ") " + rCount;
sendBytes = Encoding.ASCII.GetBytes(serverResponse);
networkStream.Write(sendBytes, 0, sendBytes.Length);
networkStream.Flush();
Console.WriteLine(" >> " + serverResponse);
}
catch (Exception ex)
{
Console.WriteLine(" >> " + ex.ToString());
}
}
}
}
}
下面的代碼是客戶端的完整代碼（Windows窗體）：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Net.Sockets;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace TCP_Client_Sample
{
public partial class Form1 : Form
{
System.Net.Sockets.TcpClient clientSocket = new System.Net.Sockets.TcpClient();
NetworkStream serverStream;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
label_status.Text = "Client Started, Connecting...";
try {
clientSocket.Connect("127.0.0.1", 8888);
if (clientSocket.Connected)
{
label_status.Text = "Connected";
label_status.ForeColor = Color.Green;
}
}
catch (Exception xe) {
MessageBox.Show("OOPS!!! SERVER MUST BE STARTED FIRST! \n\n" + xe.ToString());
}
}
//Function to Send Message to Server (On Button Click)
private void btn_send_Click(object sender, EventArgs e)
{
try {
NetworkStream serverStream = clientSocket.GetStream();
byte[] outStream = System.Text.Encoding.ASCII.GetBytes("Message From Client$");
serverStream.Write(outStream, 0, outStream.Length);
serverStream.Flush();
byte[] inStream = new byte[10025];
serverStream.Read(inStream, 0, (int)clientSocket.ReceiveBufferSize);
string returnData = System.Text.Encoding.ASCII.GetString(inStream);
chatBox.AppendText(">> Server: " + returnData);
}
catch (Exception ex) {
MessageBox.Show("Unable to Send Data: " + ex);
}
}
}
}
每次我執行它工作並啓動的服務器的代碼。但是當我執行客戶端時，服務器給我一個異常錯誤「Specified Argument was out of the range」。
下面是完整的異常錯誤：
System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: size
at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
at TCP_Server_Console.Program.Main(String[] args) in C:\Users\user\Documents\Visual Studio 2015\Projects\TCP_Server_Console\TCP_Server_Console\Program.cs:line 50
我也得到同樣的錯誤每次我從客戶端窗體點擊btn_send。
我在這裏的股票，我不知道是什麼問題，因爲這是我第一次與TCP套接字工作。
Anynone能幫助我嗎？
對我來說，這是很多代碼。你能縮小到實際重要的東西嗎？ –
@UweKeim - 抱歉，儘管發佈完整代碼會更好。 – Servas
您將btye數組聲明爲10025，但是接下來使用recievebuffersize讀取大量字節，它表明這些不一樣。 – BugFinder