C# winfrom 串口连接处理数据

主窗体：

  public SerialPortClient portClient = new SerialPortClient();private void FrmMain_Load(object sender, EventArgs e){InitCmb();InitPort();}private void InitCmb(){// 绑定端口号portClient.PortName = Port;//波特率portClient.BaudRate = (BaudRates)Enum.Parse(typeof(BaudRates), BaudRate);//数据位portClient.DataBits = (DataBits)Enum.Parse(typeof(DataBits), DataBits);//校验位portClient.Parity = (Parity)Enum.Parse(typeof(Parity), Parity1 == "奇校验" ? "1" : Parity1 == "偶校验" ? "2" : "0");//停止位portClient.StopBits = (StopBits)Enum.Parse(typeof(StopBits), StopBit);}private void InitPort(){portClient.DataReceived += new Action<List<byte>>(datapool =>{while (true){if (datapool.Count < 4) break;if ((datapool[0] == 0x7B)){datapool.RemoveAt(0);continue;}int index = -1;//正确作法是记住上次最末尾的索引，避免重复匹配for (int i = 0; i < datapool.Count - 1; i++){if (datapool[i] == 0x7D){index = i;break;}}if (index != -1){try{byte[] data = datapool.GetRange(0, index).ToArray();datapool.RemoveRange(0, index + 2);string msg = Encoding.UTF8.GetString(data, 0, data.Length);}catch (Exception ex){}}else break;}});}private void button1_Click(object sender, EventArgs e){logicForDD.portClient.Open();}private void button2_Click(object sender, EventArgs e){logicForDD.portClient.Close();}

SerialPortClient类：

    public class SerialPortClient{#region 静态方法/// <summary>/// 设置串口号/// </summary>/// <param name="obj">需要绑定的项的集合（如：ComboBox中项的集合ComboBox.Items）</param>public static void SetPortNameValues(IList obj){obj.Clear();try{foreach (string str in SerialPort.GetPortNames()){obj.Add(str);}}catch (Exception e){Console.WriteLine("未能查询到串口名称——" + e.ToString());}}/// <summary>/// 设置波特率/// </summary>/// <param name="obj">需要绑定的项的集合（如：ComboBox中项的集合ComboBox.Items）</param>public static void SetBauRateValues(IList obj){obj.Clear();foreach (BaudRates rate in Enum.GetValues(typeof(BaudRates))){obj.Add(((int)rate).ToString());}}/// <summary>/// 设置数据位/// </summary>/// <param name="obj">需要绑定的项的集合（如：ComboBox中项的集合ComboBox.Items）</param>public static void SetDataBitsValues(IList obj){obj.Clear();foreach (DataBits databit in Enum.GetValues(typeof(DataBits))){obj.Add(((int)databit).ToString());}}/// <summary>/// 设置校验位列表/// </summary>/// <param name="obj">需要绑定的项的集合（如：ComboBox中项的集合ComboBox.Items）</param>public static void SetParityValues(IList obj){obj.Clear();foreach (string str in Enum.GetNames(typeof(Parity))){obj.Add(str);}}/// <summary>/// 设置停止位/// </summary>/// <param name="obj">需要绑定的项的集合（如：ComboBox中项的集合ComboBox.Items）</param>public static void SetStopBitValues(IList obj){obj.Clear();foreach (string str in Enum.GetNames(typeof(StopBits))){obj.Add(str);}}#endregion#region 变量属性public event Action<List<byte>> DataReceived;public event SerialErrorReceivedEventHandler ErrorReceived;private SerialPort comPort = new SerialPort();private string portName = "COM1";//串口号，默认COM1private BaudRates baudRate = BaudRates.BR_9600;//波特率private Parity parity = Parity.None;//校验位private StopBits stopBits = StopBits.One;//停止位private DataBits dataBits = DataBits.Eight;//数据位        /// <summary>/// 串口号/// </summary>public string PortName{get { return portName; }set { portName = value; }}/// <summary>/// 波特率/// </summary>public BaudRates BaudRate{get { return baudRate; }set { baudRate = value; }}/// <summary>/// 奇偶校验位/// </summary>public Parity Parity{get { return parity; }set { parity = value; }}/// <summary>/// 数据位/// </summary>public DataBits DataBits{get { return dataBits; }set { dataBits = value; }}/// <summary>/// 停止位/// </summary>public StopBits StopBits{get { return stopBits; }set { stopBits = value; }}#endregion#region 构造函数/// <summary>/// 无参构造函数/// </summary>public SerialPortClient(){BoundEvents();}void BoundEvents(){comPort.DataReceived += new SerialDataReceivedEventHandler(comPort_DataReceived);comPort.ErrorReceived += new SerialErrorReceivedEventHandler(comPort_ErrorReceived);}/// <summary>/// 参数构造函数（使用枚举参数构造）/// </summary>/// <param name="baud">波特率</param>/// <param name="par">奇偶校验位</param>/// <param name="sBits">停止位</param>/// <param name="dBits">数据位</param>/// <param name="name">串口号</param>public SerialPortClient(string name, BaudRates baud, Parity par, DataBits dBits, StopBits sBits){this.portName = name;this.baudRate = baud;this.parity = par;this.dataBits = dBits;this.stopBits = sBits;BoundEvents();}/// <summary>/// 参数构造函数（使用字符串参数构造）/// </summary>/// <param name="baud">波特率</param>/// <param name="par">奇偶校验位</param>/// <param name="sBits">停止位</param>/// <param name="dBits">数据位</param>/// <param name="name">串口号</param>public SerialPortClient(string name, string baud, string par, string dBits, string sBits){this.portName = name;this.baudRate = (BaudRates)Enum.Parse(typeof(BaudRates), baud);this.parity = (Parity)Enum.Parse(typeof(Parity), par);this.dataBits = (DataBits)Enum.Parse(typeof(DataBits), dBits);this.stopBits = (StopBits)Enum.Parse(typeof(StopBits), sBits);BoundEvents();}#endregion#region 事件处理函数/// <summary>/// 数据仓库/// </summary>List<byte> datapool = new List<byte>();//存放接收的所有字节/// <summary>/// 数据接收处理/// </summary>void comPort_DataReceived(object sender, SerialDataReceivedEventArgs e){if (comPort.IsOpen)     //判断是否打开串口{Byte[] receivedData = new Byte[comPort.BytesToRead];        //创建接收字节数组comPort.Read(receivedData, 0, receivedData.Length);         //读取数据//触发整条记录的处理if (DataReceived != null){datapool.AddRange(receivedData);DataReceived(datapool);}}else{Console.WriteLine("请打开某个串口", "Error");}}/// <summary>/// 错误处理函数/// </summary>void comPort_ErrorReceived(object sender, SerialErrorReceivedEventArgs e){if (ErrorReceived != null){ErrorReceived(sender, e);}}#endregion#region 串口关闭/打开/// <summary>/// 端口是否已经打开/// </summary>public bool IsOpen{get{return comPort.IsOpen;}}/// <summary>/// 打开端口/// </summary>/// <returns></returns>public void Open(){if (comPort.IsOpen) comPort.Close();comPort.PortName = portName;comPort.BaudRate = (int)baudRate;comPort.Parity = parity;comPort.DataBits = (int)dataBits;comPort.StopBits = stopBits;comPort.Open();}/// <summary>/// 关闭端口/// </summary>public void Close(){if (comPort.IsOpen) comPort.Close();}/// <summary>/// 丢弃来自串行驱动程序的接收和发送缓冲区的数据/// </summary>public void DiscardBuffer(){comPort.DiscardInBuffer();comPort.DiscardOutBuffer();}#endregion#region 写入数据/// <summary>/// 写入数据/// </summary>/// <param name="buffer"></param>public void Write(byte[] buffer, int offset, int count){if (!(comPort.IsOpen)) comPort.Open();comPort.Write(buffer, offset, count);}/// <summary>/// 写入数据/// </summary>/// <param name="buffer">写入端口的字节数组</param>public void Write(byte[] buffer){if (!(comPort.IsOpen)) comPort.Open();comPort.Write(buffer, 0, buffer.Length);}#endregion}#region 波特率、数据位的枚举/// <summary>/// 串口数据位列表（5,6,7,8）/// </summary>public enum DataBits : int{Five = 5,Six = 6,Sevent = 7,Eight = 8}/// <summary>/// 串口波特率列表。/// 75,110,150,300,600,1200,2400,4800,9600,14400,19200,28800,38400,56000,57600,/// 115200,128000,230400,256000/// </summary>public enum BaudRates : int{BR_75 = 75,BR_110 = 110,BR_150 = 150,BR_300 = 300,BR_600 = 600,BR_1200 = 1200,BR_2400 = 2400,BR_4800 = 4800,BR_9600 = 9600,BR_14400 = 14400,BR_19200 = 19200,BR_28800 = 28800,BR_38400 = 38400,BR_56000 = 56000,BR_57600 = 57600,BR_115200 = 115200,BR_128000 = 128000,BR_230400 = 230400,BR_256000 = 256000}#endregion

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C# winfrom 串口连接处理数据

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