/// <summary>
/// 接收客户端发来的信息，客户端套接字对象
/// </summary>
/// <param name="socketclientpara"></param>
private void recv(object socketclientpara)
{
Socket socketServer = socketclientpara as Socket;
while (true)
{
//创建字节数组接收客户端的数据 返回值length表示接收了多少字节的数据,根据结构体计算出来长度大小
byte[] arrServerRecMsg = new byte[Marshal.SizeOf(typeof(SocketDateStruct)) + 2];
//将接收到的信息存入到内存缓冲区，并返回其字节数组的长度
try
{
int length = socketServer.Receive(arrServerRecMsg);
byte[] dataValue = new byte[Marshal.SizeOf(typeof(SocketDateStruct))]; //数据用于crc
Array.Copy(arrServerRecMsg, 0, dataValue, 0, length - 2);
byte[] myCRC = SoftCRC16.CRC16(dataValue);
if (myCRC[myCRC.Length - 1] == arrServerRecMsg[myCRC.Length - 1] && myCRC[myCRC.Length - 2] == arrServerRecMsg[myCRC.Length - 2]) //验证CRC高位和地位是否相等
{
SocketDateStruct socketDateStruct = new SocketDateStruct();
socketDateStruct = MarshalHelper.BytesToStruct <SocketDateStruct>(arrServerRecMsg);
string strStruct = socketDateStruct.devId + ";" + socketDateStruct.Temperature.ToString() + ";" + socketDateStruct.Humidity.ToString() +
";" + socketDateStruct.Distance.ToString() + ";" + socketDateStruct.XAxisAcceleration.ToString() +
";" + socketDateStruct.YAxisAcceleration.ToString() + ";" + socketDateStruct.ZAxisAcceleration.ToString() +
";" + socketDateStruct.PitchAngle.ToString() + ";" + socketDateStruct.RollAngle.ToString() + ";" + socketDateStruct.CourseAngle.ToString();
writeListBox("接收到了一条消息：结构体数据->" + strStruct);
}
else
{
writeListBox("接收到了一条消息：收到的数据CRC错误");
}
string strData2 = BitConverter.ToString(arrServerRecMsg); //只把接收到的数据（0 - length）进行转化
writeListBox("接收到了一条消息：原始的byte->" + strData2);
//将机器接受到的字节数组转换为人可以读懂的字符串
//string strSRecMsg = Encoding.UTF8.GetString(arrServerRecMsg, 0, length);
string strSRecMsg = "12345";
//将发送的字符串信息附加到文本框txtMsg上
writeListBox("\r\n[客户端：" + socketServer.RemoteEndPoint + " 时间：" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:fff") + "]\r\n" + strSRecMsg);
//Thread.Sleep(3000);
//socketServer.Send(Encoding.UTF8.GetBytes("[" + socketServer.RemoteEndPoint + "]："+strSRecMsg));
//发送客户端数据
if (ClientConnectionItems.Count > 0)
{
foreach (var socketTemp in ClientConnectionItems)
{
socketTemp.Value.Send(Encoding.UTF8.GetBytes("[" + socketServer.RemoteEndPoint + "]：" + strSRecMsg));
}
}
}
catch (Exception)
{
ClientConnectionItems.Remove(socketServer.RemoteEndPoint.ToString());
//提示套接字监听异常
writeListBox("\r\n[客户端\"" + socketServer.RemoteEndPoint + "\"已经中断连接！ 客户端数量：" + ClientConnectionItems.Count + "]");
//关闭之前accept出来的和客户端进行通信的套接字
socketServer.Close();
break;
}
}
}
/// <summary>
/// 发送数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="common">发送数据</param>
/// <param name="data">命令码</param>
/// <returns></returns>
public ComResult <RT> Send <T, RT>(int common, T data)
where T : struct
where RT : struct
{
ComResult <RT> result = new ComResult <RT>();
try
{
//发送命令码
byte[] commonData = BitConverter.GetBytes(common);
byte[] sendStruct = MarshalHelper.StructToBytes(data);
//发送数据
byte[] sendData = new byte[sendStruct.Length + 11];
sendData[0] = 0xff;
sendData[1] = 0x01;
sendData[2] = 0x00;
Array.Copy(commonData, 0, sendData, 3, 4);
sendData[7] = 0x01;
Array.Copy(BitConverter.GetBytes(sendStruct.Length), 0, sendData, 8, 2);
Array.Copy(sendStruct, 0, sendData, 10, sendStruct.Length);
sendData[sendData.Length - 1] = DataCheck(sendData);
//准备接收缓冲区
int receiveDataSize = Marshal.SizeOf(typeof(RT));
//发送数据
var receiveDate = SendData(sendData, receiveDataSize);
if (receiveDate[0] == 0xff && receiveDate[2] == 0x01)
{
//校验数据
if (receiveDate[receiveDate.Length - 1] != DataCheck(receiveDate))
{
result.Result = ComResultEnum.VerificationError;
}
//解析数据
int dataLength = BitConverter.ToInt16(receiveDate, 8); //获取数据长度
if (dataLength == receiveDataSize)
{
byte[] dataBytes = new byte[dataLength];
Array.Copy(receiveDate, 10, dataBytes, 0, dataLength);
result.Data = MarshalHelper.BytesToStruct <RT>(dataBytes);
}
else
{
result.Result = ComResultEnum.VerificationError;
}
}
else
{
result.Result = ComResultEnum.VerificationError;
}
}
catch (Exception ex)
{
result.Result = ComResultEnum.TimeOut;
}
return(result);
}