我有一个用于连接GSM Modem发送短信的Windows应用程序。我仅使用AT命令连接端口并发送文本。
我的问题是,我无法发送超过一个部分的消息(每个部分对于英文是160个字符,对于波斯语是70个字符)。
以下是我使用AT命令命令端口发送短信的部分:
我的问题是,我无法发送超过一个部分的消息(每个部分对于英文是160个字符,对于波斯语是70个字符)。
以下是我使用AT命令命令端口发送短信的部分:
ExecCommand(port, "AT", 300, "No phone connected at " + strPortName + ".");
ExecCommand(port, "AT+CMGF=1", 300, "Failed to set message format.");
var command = "AT+CSCS=\"" + "HEX" + "\"";
ExecCommand(port, command, 300, "Failed to support unicode");
ExecCommand(port, "AT+CSMP=1,167,0,8", 300, "Failed to set message properties.");
command = "AT+CMGS=\"" + phoneNo + "\"";
ExecCommand(port, command, 300, "Failed to accept phoneNo");
message = message.ToCharArray().Select(Convert.ToInt32).Select(value => String.Format("{0:X}", value)).Aggregate("", (current, hexOutput) => current + hexOutput.PadLeft(4, '0'));
command = message + char.ConvertFromUtf32(26) + "\r";
var recievedData = ExecCommand(port, command, 3000, "Failed to send message");
这里是ExecCommand方法。
public string ExecCommand(SerialPort port, string command, int responseTimeout, string errorMessage)
{
try
{
// receiveNow = new AutoResetEvent();
port.DiscardOutBuffer();
port.DiscardInBuffer();
receiveNow.Reset();
port.Write(command + "\r");
//Thread.Sleep(3000); //3 seconds
string input = ReadResponse(port, responseTimeout);
if ((input.Length == 0) || ((!input.EndsWith("\r\n> ")) && (!input.EndsWith("\r\nOK\r\n"))))
throw new ApplicationException("No success message was received.");
return input;
}
catch (Exception ex)
{
throw new ApplicationException(errorMessage, ex);
}
}