服务器端：
防止数据粘包类
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
class Message
{
private byte[] data = new byte[1024];
private int startIndex = 0; //我们存取了多少个字节的数据都在数组里面
public void AddCount(int count)
{
startIndex += count;
}
public byte[] Data
{
get {
return data; }
}
public int StartIndex
{
get {
return startIndex; }
}
public int RemainSize
{
//剩余的字节量
get {
return data.Length - startIndex; }
}
/// <summary>
/// 解析数据或者是叫做读取数据
/// </summary>
public void ReadMessage()
{
while (true)
{
if (startIndex <= 4) return;
int count = BitConverter.ToInt32(data,0);
if ((startIndex - 4) >= count)
{
string s = Encoding.UTF8.GetString(data, 4, count);
Console.WriteLine("解析出一条数据:" + s);
Array.Copy(data, count + 4, data, 0, startIndex - 4 - count);
startIndex -= (count + 4);
}
else
{
break;
}
}
}
}
}
服务器端接受客户端数据处理代码:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
using System.Net;
//服务器端
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
StartServerAsync();
Console.ReadKey();
}
static void StartServerAsync()
{
Socket serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
//本机IP：192.168.0.109 万能IP:127.0.0.1 此IP在任何电脑上都是指本机的局域网IP
//IpAddree:IPV4地址 IpEndPoint IPV4地址:port 也就是IPV4地址加上端口号
//IPAddress ipAddress = new IPAddress(new byte[] { 192, 168, 0, 109 });
//上面连接IP这种方式不推荐使用，推荐使用下面一种方式
IPAddress ipAddress = IPAddress.Parse("192.168.0.109");
IPEndPoint ipEndPoint = new IPEndPoint(ipAddress, 88);
//绑定IP和端口号
serverSocket.Bind(ipEndPoint);
//开始监听端口号
serverSocket.Listen(0);
//接受一个客服端连接
//Socket clientSocket = serverSocket.Accept();
//让服务器可以接受多个服务器传递过来的消息
serverSocket.BeginAccept(AcceptCallBack, serverSocket);
}
static Message msg = new Message();
static void AcceptCallBack(IAsyncResult ar)
{
Socket serverSocket = ar.AsyncState as Socket;
Socket clientSocket = serverSocket.EndAccept(ar);
//向客服端发送一条消息
string msgStr = "Hello client! 你好...";
//把字符串文本格式转化为字节数组格式
byte[] data = System.Text.Encoding.UTF8.GetBytes(msgStr);
clientSocket.Send(data);
clientSocket.BeginReceive(msg.Data, msg.StartIndex, msg.RemainSize, SocketFlags.None, ReceiveCallBack, clientSocket);
serverSocket.BeginAccept(AcceptCallBack, serverSocket);
}
static byte[] dataBuffer = new byte[1024];
static void ReceiveCallBack(IAsyncResult ar)
{
Socket clientSocket = null;
try
{
clientSocket = ar.AsyncState as Socket;
int count = clientSocket.EndReceive(ar);
if (count == 0)
{
//如果从客服端接受到的数据长度为0，也就是客服端正常关闭
clientSocket.Close();
return;
}
msg.AddCount(count);
//string msg = Encoding.UTF8.GetString(dataBuffer, 0, count);
//Console.WriteLine("从客服端接收到数据:" + msg);
msg.ReadMessage();
//clientSocket.BeginReceive(dataBuffer, 0, 1024, SocketFlags.None, ReceiveCallBack, clientSocket);
clientSocket.BeginReceive(msg.Data, msg.StartIndex, msg.RemainSize, SocketFlags.None, ReceiveCallBack, clientSocket);
}
catch (Exception e)
{
Console.WriteLine(e);
if (clientSocket != null)
{
//处理的是客户端强制关闭
clientSocket.Close();
}
}
//finally块是不管程序有没出错，都会执行
}
}
}
客服端
客服端给服务器端传输的数据最前端加上数据长度限制类:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace 客服端
{
class Message
{
public static byte[] GetBytes(string data)
{
byte[] dataBytes = Encoding.UTF8.GetBytes(data);
int dataLength = dataBytes.Length;
byte[] lengthBytes = BitConverter.GetBytes(dataLength);
byte[] newBytes = lengthBytes.Concat(dataBytes).ToArray();
return newBytes;
}
}
}
客户端发送数据到服务器端
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
using System.Net;
namespace 客服端
{
class Program
{
static void Main(string[] args)
{
Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
clientSocket.Connect(new IPEndPoint(IPAddress.Parse("192.168.0.109"), 88));
byte[] data = new byte[1024];
int count = clientSocket.Receive(data);
string msg = Encoding.UTF8.GetString(data, 0, count);
Console.Write(msg);
//while (true)
//{
// string s = Console.ReadLine();
// if (s == "c")
// {
// //如果按下键盘上的c键就关闭掉客户端
// clientSocket.Close();
// return;
// }
// clientSocket.Send(Encoding.UTF8.GetBytes(s));
//}
//粘包Demo
for (int i = 0; i < 100; i++)
{
clientSocket.Send(Message.GetBytes(i.ToString()));
}
//分包Demo
// string s = @"回复我uefhweoifwhfweiofhweefoihfowiehfwfwe富瀚微凤凰网覅欧文符号位ufiwhfowigfwfhieowf腹黑欧文回复我if外婆桥fwioefhwoifehwqfw氛围IE哦回复我饿哦if和我覅偶
// 回复我uefhweoifwhfweiofhweefoihfowiehfwfwe富瀚微凤凰网覅欧文符号位ufiwhfowigfwfhieowf腹黑欧文回复我if外婆桥fwioefhwoifehwqfw氛围IE哦回复我饿哦if和我覅偶
// 回复我uefhweoifwhfweiofhweefoihfowiehfwfwe富瀚微凤凰网覅欧文符号位ufiwhfowigfwfhieowf腹黑欧文回复我if外婆桥fwioefhwoifehwqfw氛围IE哦回复我饿哦if和我覅偶
// 回复我uefhweoifwhfweiofhweefoihfowiehfwfwe富瀚微凤凰网覅欧文符号位ufiwhfowigfwfhieowf腹黑欧文回复我if外婆桥fwioefhwoifehwqfw氛围IE哦回复我饿哦if和我覅偶
// 回复我uefhweoifwhfweiofhweefoihfowiehfwfwe富瀚微凤凰网覅欧文符号位ufiwhfowigfwfhieowf腹黑欧文回复我if外婆桥fwioefhwoifehwqfw氛围IE哦回复我饿哦if和我覅偶
// 回复我uefhweoifwhfweiofhweefoihfowiehfwfwe富瀚微凤凰网覅欧文符号位ufiwhfowigfwfhieowf腹黑欧文回复我if外婆桥fwioefhwoifehwqfw氛围IE哦回复我饿哦if和我覅偶
// 回复我uefhweoifwhfweiofhweefoihfowiehfwfwe富瀚微凤凰网覅欧文符号位ufiwhfowigfwfhieowf腹黑欧文回复我if外婆桥fwioefhwoifehwqfw氛围IE哦回复我饿哦if和我覅偶";
//clientSocket.Send(Encoding.UTF8.GetBytes(s));
Console.ReadKey();
clientSocket.Close();
}
}
}