LaserRemoval.cs
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using HHECS.BllModel;
using HHECS.Infrastructure.Enums;
using HHECS.Infrastructure.Notice;
using System;
using System.Collections.Generic;
using System.Net.Sockets;
using System.ServiceModel.Channels;
using System.Text;
using System.Threading;
namespace HHECS.Executor.EquipmentHandler.Marking
{
/// <summary>
///
/// 激光除锈信号发送
/// </summary>
public class LaserRemoval
{
private static Dictionary<string, ServerConnection> servers = new Dictionary<string, ServerConnection>();
private static readonly object serversLock = new object();
private static bool isRunning = true;
public static BllResult ConnectToServer(string serverId, string host, int port)
{
// 检查是否已连接到该服务器
lock (serversLock)
{
if (servers.ContainsKey(serverId))
{
return BllResultFactory.Success($"已连接到服务器 {serverId}");
}
}
// 创建新的服务器连接
ServerConnection connection = new ServerConnection
{
ServerId = serverId,
Host = host,
Port = port,
LastHeartbeat = DateTime.Now
};
// 启动连接线程
Thread connectThread = new Thread(() => Connect(connection));
connectThread.IsBackground = true;
connectThread.Start();
return BllResultFactory.Success();
}
static void Connect(ServerConnection connection)
{
try
{
TcpClient client = new TcpClient();
client.Connect(connection.Host, connection.Port);
// 连接成功，更新连接信息
lock (serversLock)
{
connection.Client = client;
connection.Connected = true;
servers[connection.ServerId] = connection;
}
NoticeBus.Notice($"成功连接到服务器 {connection.ServerId}", Level.Info);
// 发送设备标识
//SendMessage(connection, new Message
//{
// Type = "IDENTIFY",
// DeviceId = "ClientDevice",
// Content = "Client Connected"
//});
// 启动接收线程
Thread receiveThread = new Thread(() => ReceiveMessages(connection));
receiveThread.IsBackground = true;
receiveThread.Start();
// 启动心跳线程
Thread heartbeatThread = new Thread(() => SendHeartbeats(connection));
heartbeatThread.IsBackground = true;
heartbeatThread.Start();
}
catch (Exception ex)
{
NoticeBus.Notice($"连接服务器 {connection.ServerId} 失败: {ex.Message}", Level.Error);
// 连接失败，尝试重连
Reconnect(connection);
}
}
public static void Reconnect(ServerConnection connection)
{
// 标记为未连接
lock (serversLock)
{
connection.Connected = false;
if (connection.Client != null)
{
try { connection.Client.Close(); } catch { }
connection.Client = null;
}
}
Thread.Sleep(5000);
// 重新连接
if (isRunning)
{
Thread connectThread = new Thread(() => Connect(connection));
connectThread.IsBackground = true;
connectThread.Start();
}
}
static void ReceiveMessages(ServerConnection connection)
{
NetworkStream stream = null;
byte[] buffer = new byte[1024];
try
{
while (isRunning && connection.Connected && connection.Client.Connected)
{
if (stream == null)
stream = connection.Client.GetStream();
if (!IsConnected(connection.Client))
break;
// 检查是否有数据可读
if (connection.Client.Available > 0)
{
int bytesRead = stream.Read(buffer, 0, buffer.Length);
if (bytesRead > 0)
{
string data = Encoding.UTF8.GetString(buffer, 0, bytesRead);
Message message = Message.Parse(data);
message.DeviceId = connection.ServerId;
message.Type = "COMMAND";
// 更新心跳时间
connection.LastHeartbeat = DateTime.Now;
// 处理不同类型的消息
switch (message.Type)
{
case "HEARTBEAT":
NoticeBus.Notice($"收到来自服务器 {connection.ServerId} 的心跳", Level.Error);
break;
case "COMMAND":
NoticeBus.Notice($"收到来自服务器 {connection.ServerId} 的命令: {message.Content}", Level.Info);
// 处理命令...
break;
default:
NoticeBus.Notice($"收到来自服务器 {connection.ServerId} 的未知类型消息: {message.Type}", Level.Error);
break;
}
}
}
else
{
Thread.Sleep(100);
}
}
}
catch (Exception ex)
{
NoticeBus.Notice($"从服务器 {connection.ServerId} 接收消息时出错: {ex.Message}", Level.Error);
}
finally
{
// 连接断开，尝试重连
if (isRunning)
{
Reconnect(connection);
}
}
}
static void SendHeartbeats(ServerConnection connection)
{
while (isRunning && connection.Connected)
{
try
{
//if (connection.Client != null && connection.Client.Connected)
//{
// SendMessage(connection, new Message
// {
// Type = "HEARTBEAT",
// DeviceId = "ClientDevice",
// Content = "Ping"
// });
//}
//else
//{
// break;
//}
}
catch (Exception ex)
{
NoticeBus.Notice($"向服务器 {connection.ServerId} 发送心跳时出错: {ex.Message}", Level.Error);
break;
}
// 每5秒发送一次心跳
Thread.Sleep(5000);
}
}
public static BllResult SendMessage(ServerConnection connection, Message message)
{
if (!connection.Connected || connection.Client == null || !connection.Client.Connected)
{
return BllResultFactory.Error(($"无法发送消息到服务器 {connection.ServerId}: 未连接"));
}
try
{
string json = message.ToJson();
byte[] data = Encoding.UTF8.GetBytes(json);
NetworkStream stream = connection.Client.GetStream();
stream.Write(data, 0, data.Length);
return BllResultFactory.Success();
}
catch (Exception ex)
{
Reconnect(connection);
return BllResultFactory.Error($"向服务器 {connection.ServerId} 发送消息时出错: {ex.Message}");
}
}
// 检查Socket连接是否仍然有效
public static bool IsConnected(TcpClient client)
{
if (client == null || !client.Connected)
return false;
Socket socket = client.Client;
return !(socket.Poll(1000, SelectMode.SelectRead) && socket.Available == 0);
}
}
// 服务器连接信息类
public class ServerConnection
{
public string ServerId { get; set; }
public string Host { get; set; }
public int Port { get; set; }
public TcpClient Client { get; set; }
public bool Connected { get; set; }
public DateTime LastHeartbeat { get; set; }
}
// 消息类
public class Message
{
public string Type { get; set; }
public string DeviceId { get; set; }
public string Content { get; set; }
public string ToJson()
{
return $"{{\"type\":\"{Type}\",\"deviceId\":\"{DeviceId}\",\"content\":\"{Content}\"}}";
}
public static Message Parse(string json)
{
try
{
// 简单解析，实际应用中应使用JSON库
Message message = new Message();
// 提取type字段
int typeStart = json.IndexOf("\"type\":\"") + 8;
int typeEnd = json.IndexOf("\"", typeStart);
if (typeStart > 7 && typeEnd > typeStart)
message.Type = json.Substring(typeStart, typeEnd - typeStart);
// 提取deviceId字段
int deviceIdStart = json.IndexOf("\"deviceId\":\"") + 11;
int deviceIdEnd = json.IndexOf("\"", deviceIdStart);
if (deviceIdStart > 10 && deviceIdEnd > deviceIdStart)
message.DeviceId = json.Substring(deviceIdStart, deviceIdEnd - deviceIdStart);
// 提取content字段
int contentStart = json.IndexOf("\"content\":\"") + 11;
int contentEnd = json.LastIndexOf("\"");
if (contentStart > 10 && contentEnd > contentStart)
message.Content = json.Substring(contentStart, contentEnd - contentStart);
return message;
}
catch
{
return new Message { Type = "UNKNOWN", DeviceId = "UNKNOWN", Content = json };
}
}
}
}