如何ASP.NET2.0中的WEBFORM中使用SERIALPORT

Question

我想在ASP.NET2.0中使用SERIALPORT类来操作串口,但无法实现,请各位大侠给点思路或全程
项目已因此停滞三天了!

Answer 1

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
using System.IO.Ports;namespace ConsoleApplication1
{
    class CommPort
    {
        protected SerialPort commPort = new SerialPort();        private readonly StringBuilder strReceive = new StringBuilder();           //   接收到数据的缓冲区         #region   CommPort   构造函数        ///   <summary > 
        ///   CommPort   构造函数 
        ///   </summary > 
        public CommPort()
        {
            //   初始化串口   
            commPort.BaudRate = 1200;
            commPort.Parity = Parity.Even;
            commPort.Encoding = Encoding.UTF8;            //   串口的数据接收事件 
            commPort.DataReceived += commPort_DataReceived;
        }        #endregion        #region   commPort_DataReceived   数据抵达        ///   <summary > 
        ///   commPort_DataReceived   数据抵达 
        ///   </summary > 
        ///   <param   name= "sender " > </param > 
        ///   <param   name= "e " > </param > 
        void commPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            try
            {
                #region   接收数据                //   接收缓冲区中数据的字节数 
                int int_Len = commPort.BytesToRead;                //   接收数据 
                byte[] bytes = new byte[int_Len];
                commPort.Read(bytes, 0, int_Len);                #endregion                #region   将数据存入缓冲                //   将数据存入字符串缓冲区中 
                for (int i = 0; i < bytes.Length; i++)
                {
                    strReceive.Append(bytes[i] + "   ");
                }                #endregion            }
            catch (Exception ex)
            {            }
        }        #endregion        #region   IsOpen   测试串口是否已经打开        ///   <summary > 
        ///   测试串口是否已经打开 
        ///   </summary > 
        ///   <returns > </returns > 
        public bool IsOpen()
        {
            try
            {
                if (commPort == null) return false;                return commPort.IsOpen;
            }
            catch (Exception ex)
            {
            }            return false;
        }        #endregion        #region   Open   打开串口        ///   <summary > 
        ///   打开串口 
        ///   </summary > 
        ///   <returns > </returns > 
        public bool Open()
        {
            try
            {
                if (!commPort.IsOpen)
                {
                    commPort.Open();
                }                return true;
            }
            catch (Exception ex)
            {
                return false;
            }
        }        #endregion        #region   Close   关闭串口        ///   <summary > 
        ///   关闭串口 
        ///   </summary > 
        ///   <returns > </returns > 
        public bool Close()
        {
            try
            {
                if (commPort.IsOpen)
                {
                    commPort.Close();
                }                return true;
            }
            catch (Exception ex)
            {
                return false;
            }
        }        #endregion        #region   Write   往串口中写数据        ///   <summary > 
        ///   往串口中写数据 
        ///   </summary > 
        public void Write(byte[] bytes)
        {
            try
            {
                if (commPort.IsOpen)
                {
                    commPort.Write(bytes, 0, bytes.Length);
                }
                else
                {
                    Open();
                    commPort.Write(bytes, 0, bytes.Length);
                }
            }
            catch (Exception ex)
            {
            }
        }        #endregion        }
}