AutoCAD.net支持后台线程-Socket通讯

最近因为公司项目的需求，CAD作为服务端在服务器中常驻运行，等待客户端远程发送执行任务的指令，最终确认用Socket-tcp通讯，CAD需要实时监听客户端发送的消息，这时就需要开启线程执行Socket的监听任务。

这样问题就来了，CADAPI不支持多线程，您只能从主线程调用API函数，如果您处于不同的线程，则必须将调用集中到主线程上。

最后查了半天的资料发现，最简单的实现方式，是建立在主线程system.windows.forms.control对象并调用它的启动功能，做最后处理invoke()功能。

下面分别是客户端和服务端的demo

  class Program
     {
         private static byte[] result = new byte[];
         static void Main(string[] args)
         {
             //设定服务器IP地址
             IPAddress ip = IPAddress.Parse("10.19.10.237");
             //IPAddress ip = IPAddress.Parse("127.0.0.1");
             Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
             try
             {
                 clientSocket.Connect(new IPEndPoint(ip, )); //配置服务器IP与端口
                 Console.WriteLine("连接服务器成功");
             }
             catch
             {
                 Console.WriteLine("连接服务器失败，请按回车键退出！");
                 return;
             }
             //通过clientSocket接收数据
             int receiveLength = clientSocket.Receive(result);
             Console.WriteLine("接收服务器消息：{0}", Encoding.UTF8.GetString(result, , receiveLength));
             //通过 clientSocket 发送数据
             for (int i = ; i < ; i++)
             {
                 try
                 {
                     Thread.Sleep();    //等待1秒钟
                     string sendMessage = "C:\\Users\\Administrator\\Desktop\\原始CAD文件\\14412-kujiale.dxf";
                     clientSocket.Send(Encoding.UTF8.GetBytes(sendMessage));
                     Console.WriteLine("向服务器发送消息：{0}" + sendMessage);
                     receiveLength = clientSocket.Receive(result);
                     Console.WriteLine("接收服务器消息：{0}", Encoding.UTF8.GetString(result, , receiveLength));
                 }
                 catch
                 {
                     clientSocket.Shutdown(SocketShutdown.Both);
                     clientSocket.Close();
                     break;
                 }
             }
             clientSocket.Shutdown(SocketShutdown.Both);
             clientSocket.Close();
             Console.WriteLine("发送完毕，按回车键退出");
             Console.ReadLine();
         }
     }

Socket客户端-控制台测试

  public class SocketServer
     {
         //通过winform控件进行后台处理，CADAPI不支持多线程
         static Control syncCtrl;
         //承载接收数据
         private static byte[] result = new byte[];
         //端口
         private static int myProt = ;

         private static Socket serverSocket;

         delegate void FinishedProcessingDelegate();
         public static void InitSocket()
         {
             //创建控件
             syncCtrl = new Control();
             syncCtrl.CreateControl();
             //创建通讯对象
             serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
             //绑定IP地址：端口
             serverSocket.Bind(new IPEndPoint(IPAddress.Any, myProt));
             //设定最多10个排队连接请求
             serverSocket.Listen();
             //通过Clientsoket发送数据
             Thread myThread = new Thread(ListenClientConnect);
             myThread.Start();
         }
         /// <summary>
         /// 监听客户端连接
         /// </summary>
         private static void ListenClientConnect()
         {
             while (true)
             {
                 Socket clientSocket = serverSocket.Accept();
                 try
                 {

                     clientSocket.Send(Encoding.UTF8.GetBytes("我是牛魔王"));
                     Thread receiveThread = new Thread(ReceiveMessage);
                     receiveThread.Start(clientSocket);
                 }
                 catch (Exception)
                 {

                     clientSocket.Shutdown(SocketShutdown.Both);
                     clientSocket.Close();
                 }

             }
         }

         /// <summary>
         /// 接收消息
         /// </summary>
         /// <param name="clientSocket"></param>
         private static void ReceiveMessage(object clientSocket)
         {
             Socket myClientSocket = (Socket)clientSocket;
             while (true)
             {
                 try
                 {
                     //通过clientSocket接收数据
                     int receiveNumber = myClientSocket.Receive(result);
                     if (receiveNumber>)
                     {
                         //获取文件名称
                         string filePath = Encoding.UTF8.GetString(result, , receiveNumber);
                         //判断文件是否存在
                         if (FileOperate.FileExists(filePath))
                         {
                             FileStandardization.filePathByJava = filePath;
                             if (syncCtrl.InvokeRequired)
                             {
                                 //开始执行CAD数据处理的任务
                                 syncCtrl.Invoke(new FinishedProcessingDelegate(FileStandardization.TransMianByJava));
                             }
                             myClientSocket.Send(Encoding.UTF8.GetBytes("我是牛魔王:处理结果是" + FileStandardization.resultJava));
                             FileOperate.Log(SystemData.logPath, "我是牛魔王，文件处理完成：" + filePath);
                         }
                         else
                         {
                             myClientSocket.Send(Encoding.UTF8.GetBytes("我是牛魔王:文件不存在"));
                         }
                     }
                     else
                     {
                         FileOperate.Log(SystemData.logPath, "没有收到数据了");
                         myClientSocket.Shutdown(SocketShutdown.Both);
                         myClientSocket.Close();
                         break;
                     }

                 }
                 catch (Exception ex)
                 {
                     FileOperate.Log(SystemData.logPath,"文件处理异常："+ex.Message);
                     myClientSocket.Shutdown(SocketShutdown.Both);
                     myClientSocket.Close();
                     break;
                 }
             }
         }

     }

Socket服务端