C#Tcp简单使用
不说废话了，自己弄，最原始的代码。
客户端
using System;
using System.Collections.Concurrent;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace RaftCore.Connections.NodeServer.TcpServers
{
public class TCPClient
{
///
/// 服务端IP
///
public string ServerIP { get; set; }
///
/// 服务端端口
///
public int Port { get; set; }
///
/// 缓存区大小，默认5M
///
public int BufferSize { get; set; } = 1024 * 1024 * 5;
///
/// 是否连接
///
public bool IsConnected { get { return clientSocket.Connected; } }
private readonly Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
///
/// 回复的数据
///
readonly ConcurrentDictionary dic = new ConcurrentDictionary();
///
/// 连接
///
///
/// 接收数据返回
///
private async void ReceiveMessage()
{
byte[] recvLen = new byte[4];//接收数据长度
int bytesLen=-1;
Memory memory = new Memory(new byte[BufferSize]);
long id = -1;
while (true)
{
bytesLen =await clientSocket.ReceiveAsync(recvLen);
int len = BitConverter.ToInt32(recvLen);
if (len < BufferSize)
{
bytesLen = await clientSocket.ReceiveAsync(memory);
var msg = TcpDelimiter.GetMessage(memory, bytesLen, ref id);
dic[id] = msg;
}
else
{
byte[] recvBytes = new byte[len + 8];
await clientSocket.ReceiveAsync(recvBytes);
var msg = TcpDelimiter.GetMessage(recvBytes, ref id);
dic[id] = msg;
}
if(!clientSocket.Connected)
{
break;
}
}
}
///
/// 发送并且接收数据
///
/// 发送的数据
///
/// SendGetReply(byte[] data, TimeSpan timeout)
{
byte[] buf = new byte[0];
if (clientSocket.Connected)
{
long id = -1;
int num = 1;
var bytes = TcpDelimiter.BuildMessage(data, ref id);
await clientSocket.SendAsync(bytes);
while (true)
{
if (dic.TryGetValue(id, out buf))
{
break;
}
num++;
Thread.Sleep(100);
if (num * 100> timeout.TotalMilliseconds)
{
break;
}
}
}
return buf;
}
///
/// 发送接收字符串
///
///
///
/// SendGetReply(string data, TimeSpan timeout)
{
var tmp = Encoding.UTF8.GetBytes(data);
var r = await this.SendGetReply(tmp, timeout);
return Encoding.UTF8.GetString(r);
}
///
/// 只发送
///
///
/// -1没有连接
public int Send(byte[] data)
{
if (clientSocket.Connected)
{
long id = -1;
var bytes = TcpDelimiter.BuildMessage(data, ref id);
return clientSocket.Send(bytes);
}
return -1;
}
///
/// 关闭
///
public void Close()
{
clientSocket.Close();
}
}
}
服务端
using System;
using System.Collections.Concurrent;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace RaftCore.Connections.NodeServer.TcpServers
{
public class TCPClient
{
///
/// 服务端IP
///
public string ServerIP { get; set; }
///
/// 服务端端口
///
public int Port { get; set; }
///
/// 缓存区大小，默认5M
///
public int BufferSize { get; set; } = 1024 * 1024 * 5;
///
/// 是否连接
///
public bool IsConnected { get { return clientSocket.Connected; } }
private readonly Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
///
/// 回复的数据
///
readonly ConcurrentDictionary dic = new ConcurrentDictionary();
///
/// 连接
///
///
/// 接收数据返回
///
private async void ReceiveMessage()
{
byte[] recvLen = new byte[4];//接收数据长度
int bytesLen=-1;
Memory memory = new Memory(new byte[BufferSize]);
long id = -1;
while (true)
{
bytesLen =await clientSocket.ReceiveAsync(recvLen);
int len = BitConverter.ToInt32(recvLen);
if (len < BufferSize)
{
bytesLen = await clientSocket.ReceiveAsync(memory);
var msg = TcpDelimiter.GetMessage(memory, bytesLen, ref id);
dic[id] = msg;
}
else
{
byte[] recvBytes = new byte[len + 8];
await clientSocket.ReceiveAsync(recvBytes);
var msg = TcpDelimiter.GetMessage(recvBytes, ref id);
dic[id] = msg;
}
if(!clientSocket.Connected)
{
break;
}
}
}
///
/// 发送并且接收数据
///
/// 发送的数据
///
/// SendGetReply(byte[] data, TimeSpan timeout)
{
byte[] buf = new byte[0];
if (clientSocket.Connected)
{
long id = -1;
int num = 1;
var bytes = TcpDelimiter.BuildMessage(data, ref id);
await clientSocket.SendAsync(bytes);
while (true)
{
if (dic.TryGetValue(id, out buf))
{
break;
}
num++;
Thread.Sleep(100);
if (num * 100> timeout.TotalMilliseconds)
{
break;
}
}
}
return buf;
}
///
/// 发送接收字符串
///
///
///
/// SendGetReply(string data, TimeSpan timeout)
{
var tmp = Encoding.UTF8.GetBytes(data);
var r = await this.SendGetReply(tmp, timeout);
return Encoding.UTF8.GetString(r);
}
///
/// 只发送
///
///
/// -1没有连接
public int Send(byte[] data)
{
if (clientSocket.Connected)
{
long id = -1;
var bytes = TcpDelimiter.BuildMessage(data, ref id);
return clientSocket.Send(bytes);
}
return -1;
}
///
/// 关闭
///
public void Close()
{
clientSocket.Close();
}
}
}
数据解析
using System;
namespace RaftCore.Connections.NodeServer.TcpServers
{
///
/// 数据解析
///
internal class TcpDelimiter
{
static readonly SnowflakeIdGenerator snowflake = new SnowflakeIdGenerator();
public static byte[] BuildMessage(byte[] message,ref long id)
{
byte[] result = new byte[message.Length + 4 + 8];
Memory memory = new Memory(result);
byte[] len = BitConverter.GetBytes(message.Length+8);
id = snowflake.nextId();
byte[] ids = BitConverter.GetBytes(id);
Array.Copy(len, result, 4);
Array.Copy(ids, 0, result, 4, 8);
Array.Copy(message, 0, result, 8 + 4, message.Length);
return result;
}
public static byte[] BuildMessage(byte[] message, long id)
{
byte[] result = new byte[message.Length + 4 + 8];
Memory memory = new Memory(result);
byte[] len = BitConverter.GetBytes(message.Length);
byte[] ids = BitConverter.GetBytes(id);
Array.Copy(len, result, 4);
Array.Copy(ids, 0, result, 4, 8);
Array.Copy(message, 0, result, 8 + 4, message.Length);
return result;
}
public static byte[] GetMessage(byte[] message, ref long id)
{
Memory memory = new Memory(message);
var bytes = memory.Slice(0, 8).ToArray();
id = BitConverter.ToInt64(bytes);
return memory.Slice(8).ToArray();
}
//
public static byte[] GetMessage(Memory memory,int len, ref long id)
{
id = BitConverter.ToInt64(memory.Slice(0,8).Span);
return memory.Slice(8, len-8).ToArray();
}
}
}