Server.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Web.Script.Serialization;
using Model;
namespace BLL
{
public class Server
{
private string _ip; //本地IP地址
private Socket _server; //服务端
private List<Client> _client; //所有客户端
private Timer timerListenClient;
private const int PORT = 12000; //端口
public Server(string localIP)
{
_ip = localIP;
_client = new List<Client>();
Common.nodeInfos = new List<ClientNode>();
ThreadPool.SetMaxThreads(20, 20); //线程池最大数量
}
/// <summary>
/// 开启服务
/// </summary>
public void Start()
{
try
{
IPEndPoint localEP = new IPEndPoint(IPAddress.Any, PORT);
_server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
_server.Bind(localEP);
_server.Listen(100);
_client = new List<Client>();
timerListenClient = new Timer(ListenClient, null, 50, Timeout.Infinite);
Common.log.Info("AGV服务启动");
}
catch (Exception ex)
{
Common.log.Error("Start", ex);
}
}
/// <summary>
/// 停止服务
/// </summary>
public void Stop()
{
for (int i = 0; i < _client.Count; i++)
_client[i].Clear();
if (timerListenClient != null)
timerListenClient.Dispose();
Common.log.Info("AGV服务关闭");
}
/// <summary>
/// 更新节点界面
/// </summary>
/// <param name="nodeIndex"></param>
public void NodeRefresh(int nodeIndex)
{
//NodeChanged?.Invoke(nodeIndex);
}
///// <summary>
///// 小车到达
///// </summary>
///// <param name="info"></param>
///// <returns></returns>
//public bool Arrive(Agv_Info info)
//{
// //int idx;
// //int n = 0;
// //do
// //{
// // idx = FindClient(info.Place);
// // if (idx == -1)
// // {
// // Common.log.Info("没有找到" + info.Place);
// // Thread.Sleep(500);
// // n++;
// // }
// // else
// // {
// // n = 10;
// // }
// //} while (n < 4);
// //if (idx == -1) return false;
// //ClientNode node = new ClientNode(info.Place, info.RFID, ClientAction.Arrive);
// //Common.log.Info("SendTo " + info.Place + " " + ClientAction.Arrive);
// //byte[] buff = Encode(node);
// //return Send(idx, buff);
//}
///// <summary>
///// 小车已准备好
///// </summary>
///// <param name="info"></param>
///// <returns></returns>
//public bool Ready(Agv_Info info)
//{
// //int idx;
// //int n = 0;
// //do
// //{
// // idx = FindClient(info.Place);
// // if (idx == -1)
// // {
// // Common.log.Info("没有找到" + info.Place);
// // Thread.Sleep(500);
// // n++;
// // }
// // else
// // {
// // n = 10;
// // }
// //} while (n < 4);
// //if (idx == -1) return false;
// //ClientNode node = new ClientNode(info.Place, info.RFID, ClientAction.Ready);
// //Common.log.Info("SendTo " + info.Place + " " + ClientAction.Ready);
// //byte[] buff = Encode(node);
// //return Send(idx, buff);
//}
///// <summary>
///// 关门
///// </summary>
///// <param name="info"></param>
///// <returns></returns>
//public bool CloseDoor(Agv_Info info)
//{
// //int idx;
// //int n = 0;
// //do
// //{
// // idx = FindClient(info.Place);
// // if (idx == -1)
// // {
// // Common.log.Info("没有找到" + info.Place);
// // Thread.Sleep(500);
// // n++;
// // }
// // else
// // {
// // n = 10;
// // }
// //} while (n < 4);
// //if (idx == -1) return false;
// //ClientNode node = new ClientNode(info.Place, info.RFID, ClientAction.CloseDoor);
// //Common.log.Info("SendTo " + info.Place + " " + ClientAction.CloseDoor);
// //byte[] buff = Encode(node);
// //return Send(idx, buff);
//}
///// <summary>
///// 需要进入料架
///// </summary>
///// <param name="info"></param>
///// <returns></returns>
//public bool EnterShelf(Agv_Info info)
//{
// //int idx;
// //int n = 0;
// //do
// //{
// // idx = FindClient(info.Place);
// // if (idx == -1)
// // {
// // Common.log.Info("没有找到" + info.Place);
// // Thread.Sleep(500);
// // n++;
// // }
// // else
// // {
// // n = 10;
// // }
// //} while (n < 4);
// //if (idx == -1) return false;
// //ClientNode node = new ClientNode(info.Place, info.RFID, ClientAction.EnterShelf);
// //Common.log.Info("SendTo " + info.Place + " " + ClientAction.EnterShelf);
// //byte[] buff = Encode(node);
// //return Send(idx, buff);
//}
/// <summary>
/// 监听客户端
/// </summary>
private void ListenClient(object obj)
{
try
{
Socket socket = _server.Accept();
IPEndPoint ep = (IPEndPoint)socket.RemoteEndPoint;
string ip = ep.Address.ToString();
if (ip == _ip) ip += ":" + ep.Port;
//重连后关闭旧连接
int idx = _client.FindIndex(s => s.IP == ip);
if (idx > -1)
{
_client[idx].Clear();
_client.RemoveAt(idx);
}
//新的客户端
Client client = new Client { IP = ip, IsConn = true, Socket = socket };
_client.Add(client);
client.ListenNet = new Timer(ListenNet, _client.Count - 1, 100, 100);
Common.log.Info(string.Format("[{0}] 已连接", client.IP));
}
catch (SocketException)
{
//关闭连接，退出阻塞Accept
}
catch (Exception ex)
{
Common.log.Error("ListenClient", ex);
}
}
/// <summary>
/// 客户端数据接收
/// </summary>
/// <param name="obj">索引</param>
private void ListenNet(object obj)
{
Client client = _client[(int)obj];
byte[] temp = new byte[200];
int time = 0;
try
{
if (client.Socket.Available > 0)
{
time = 0;
int count = client.Socket.Receive(temp);
byte[] buff = new byte[count];
Array.Copy(temp, 0, buff, 0, count);
ClientNode node = Decode(buff);
if (node == null)
Common.log.Info("命令解析失败: " + HexBuff(buff));
else
Common.log.Info("From Server: " + node.ToText());
UpdateNode(client, node);
}
else
{
time += 100;
if (time > 10000)
{
Offline(client);
Common.log.Info("[" + client.IP + "] 超过10s没有收到数据，关闭连接");
}
}
}
catch (Exception ex)
{
Common.log.Error("ListenNet", ex);
}
}
private byte[] Encode(ClientNode node)
{
List<string> arr = new List<string>
{
"name:\"" + node.Name + "\"",
"mark:\"" + node.Mark + "\"",
"rfid:\"" + node.RFID + "\"",
"action:\"" + node.Action.ToString() + "\"",
"level:\"" + node.Level.ToString() + "\""
};
string s = "{" + string.Join(",", arr) + "}";
byte[] buff = Encoding.UTF8.GetBytes(s);
return buff;
}
private ClientNode Decode(byte[] buff)
{
string json = Encoding.UTF8.GetString(buff);
JavaScriptSerializer serializer = new JavaScriptSerializer();
Dictionary<string, object> dic = (Dictionary<string, object>)serializer.DeserializeObject(json);
if (dic == null) return null;
ClientNode node = new ClientNode();
if (dic.TryGetValue("name", out object value))
node.Name = value.ToString();
if (dic.TryGetValue("mark", out value))
node.Mark = value.ToString();
if (dic.TryGetValue("rfid", out value))
node.RFID = value.ToString();
if (dic.TryGetValue("action", out value))
{
if (Enum.TryParse(value.ToString(), out ClientAction action))
node.Action = action;
}
if (dic.TryGetValue("level", out value))
{
if (Enum.TryParse(value.ToString(), out ClientLevel level))
node.Level = level;
}
return node;
}
private string HexBuff(byte[] buff)
{
string s = "";
if (buff == null) return s;
for (int i = 0; i < buff.Length; i++)
s += buff[i].ToString("X2") + " ";
return s;
}
private void UpdateNode(Client client, ClientNode node)
{
if (node == null) return;
int idx = client.NodeName.FindIndex(s => s == node.Name);
if (idx == -1) client.NodeName.Add(node.Name);
idx = Common.nodeInfos.FindIndex(s => s.Name == node.Name);
//int idx = Common.nodeInfo.FindIndex(s => s.Name == node.Name);
//if (idx == -1)
//{
// Common.log.Info(node.Name + " 不存在");
// return;
//}
//if (!Common.nodeInfo[idx].Online)
//{
// Common.nodeInfo[idx].Online = true;
// NodeOnline?.Invoke(idx);
// NodeChanged?.Invoke(idx);
//}
//if (Common.nodeInfo[idx].Mark != node.Mark ||
// Common.nodeInfo[idx].Action != node.Action ||
// Common.nodeInfo[idx].Level != node.Level ||
// Common.nodeInfo[idx].RFID != node.RFID)
//{
// Common.nodeInfo[idx].Mark = node.Mark;
// Common.nodeInfo[idx].Action = node.Action;
// Common.nodeInfo[idx].Level = node.Level;
// Common.nodeInfo[idx].RFID = node.RFID;
// Common.log.Info(node.Name + "更新 " + node.ToText());
// NodeChanged?.Invoke(idx);
//}
}
private void Offline(Client client)
{
//client.Loop = false;
//client.IsConn = false;
//client.Socket.Close();
//for (int i = 0; i < client.nodeName.Count; i++)
//{
// int idx = AGVControl.Common.nodeInfo.FindIndex(s => s.Name == client.nodeName[i]);
// if (idx == -1) continue;
// AGVControl.Common.nodeInfo[idx].Offline();
// NodeChanged(idx);
// NodeOnline(idx);
//}
//client.nodeName.Clear();
}
private class Client
{
public string IP;
public bool IsConn;
public List<string> NodeName;
public Socket Socket;
public Timer ListenNet;
public Client()
{
IP = "";
IsConn = false;
NodeName = new List<string>();
}
public void Clear()
{
IP = "";
IsConn = false;
NodeName.Clear();
Socket.Close();
ListenNet.Dispose();
}
}
}
}