1 using System;
  2 using System.Collections.Generic;
  3 using System.Configuration;
  4 using System.IO.Ports;
  5 using System.Linq;
  6 using System.Text;
  7 using System.Threading;
  8 using System.Threading.Tasks;
  9 
 10 namespace ZPZSerialPort.ComSerialPort
 11 {
 12     public sealed class ComDeviceManager
 13     {
 14         private NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();//NLog日志记录串口信息
 15         private static ComDeviceManager _comManager;
 16         private static readonly object _instAsync = new object();
 17         public SerialPort ComDeviceComputerChip { get; private set; }
 18 
 19         public Action<Byte[]> ActionComputerChip { get; set; }
 20 
 21         /// <summary>
 22         /// 此处配置根据实际串口进行配置，也可以配置为可变的参数
 23         /// </summary>
 24         private ComDeviceManager()
 25         {
 26             ComDeviceComputerChip = new SerialPort();//实例化一个SerialPort
 27             ComDeviceComputerChip.PortName = ConfigurationManager.AppSettings["protnamexyt"];//端口号此处端口号不固定此处配置为可变参数
 28             ComDeviceComputerChip.BaudRate = 115200;// 串行波特率指定为115200
 29             ComDeviceComputerChip.Parity = (Parity)Convert.ToInt32("0");//
 30             ComDeviceComputerChip.DataBits = Convert.ToInt32("8");
 31             ComDeviceComputerChip.StopBits = (StopBits)Convert.ToInt32("1");
 32             ComDeviceComputerChip.DataReceived += ComDevice1_DataReceived;
 33 
 34         }
 35         /// <summary>
 36         /// 接受端口数据事件
 37         /// </summary>
 38         /// <param name="sender"></param>
 39         /// <param name="e"></param>
 40         private void ComDevice1_DataReceived(object sender, SerialDataReceivedEventArgs e)
 41         {
 42             byte[] buffers = new byte[ComDeviceComputerChip.BytesToRead];
 43             ComDeviceComputerChip.Read(buffers, 0, buffers.Length);
 44             ActionComputerChip?.Invoke(buffers);
 45         }
 46         /// <summary>
 47         /// 当前设备
 48         /// </summary>
 49         public static ComDeviceManager CurrentDevice
 50         {
 51             get
 52             {
 53                 if (_comManager == null)
 54                 {
 55                     lock (_instAsync)
 56                     {
 57                         if (_comManager == null)
 58                         {
 59                             return _comManager = new ComDeviceManager();
 60                         }
 61                     }
 62                 }
 63 
 64                 return _comManager;
 65             }
 66         }
 67         /// <summary>
 68         /// 打开端口
 69         /// </summary>
 70         /// <returns></returns>
 71         public bool OpenDevice()
 72         {
 73             try
 74             {
 75                 if (!ComDeviceComputerChip.IsOpen)
 76                 {
 77                     ComDeviceComputerChip.Open();
 78                 }
 79                 return true;
 80             }
 81             catch (Exception ex)
 82             {
 83                 logger.Error("打开设备错误："+ex);
 84             }
 85 
 86             return false;
 87         }
 88         /// <summary>
 89         /// 发送数据
 90         /// </summary>
 91         /// <param name="data"></param>
 92         /// <returns></returns>
 93         public bool SendDzxp(byte[] data)
 94         {
 95             try
 96             {
 97                 if (ComDeviceComputerChip.IsOpen)
 98                 {
 99                     Thread.Sleep(10);// 延迟发送必须做延迟发送不然发送给校牌接受不到，这个问题浪费了一上午事件才发送在发送得时候需要做延迟
100                     ComDeviceComputerChip.Write(data, 0, data.Length);//发送数据给串口端口
101                     Thread.Sleep(10);// 延迟发送
102                     return true;
103                 }
104             }
105             catch (Exception ex)
106             {
107                 logger.Error(ex);
108             }
109 
110             return false;
111         }
112 
113 
114     }
115 }