复制代码 代码如下:
import gnu.io.*;
import java.util.*;
import java.io.*;
public class CommTest
{
static CommPortIdentifier portId;
static Enumeration portList;
static int bauds[] = { 9600, 19200, 57600, 115200 }; //检测端口所支持的波特率
public static void main(String[] args)
{
portList = CommPortIdentifier.getPortIdentifiers();
System.out.println("短信设备端口连接测试...");
while (portList.hasMoreElements())
{
portId = (CommPortIdentifier) portList.nextElement();
if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL)
{
System.out.println("找到串口: " + portId.getName());
for (int i = 0; i < bauds.length; i++)
{
System.out.print(" Trying at " + bauds[i] + "...");
try
{
SerialPort serialPort;
InputStream inStream;
OutputStream outStream;
int c;
String response;
serialPort = (SerialPort) portId.open("SMSLibCommTester", 1971);
serialPort.setFlowControlMode(SerialPort.FLOWCONTROL_RTSCTS_IN);
serialPort.setSerialPortParams(bauds[i], SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
inStream = serialPort.getInputStream();
outStream = serialPort.getOutputStream();
serialPort.enableReceiveTimeout(1000);
c = inStream.read();
while (c != -1)
c = inStream.read();
outStream.write('A');
outStream.write('T');
outStream.write('r');
try
{
Thread.sleep(1000);
}
catch (Exception e)
{
}
response = "";
c = inStream.read();
while (c != -1)
{
response += (char) c;
c = inStream.read();
}
if (response.indexOf("OK") >= 0)
{
try
{
System.out.print(" 获取设备信息...");
outStream.write('A');
outStream.write('T');
outStream.write('+');
outStream.write('C');
outStream.write('G');
outStream.write('M');
outStream.write('M');
outStream.write('r');
response = "";
c = inStream.read();
while (c != -1)
{
response += (char) c;
c = inStream.read();
}
System.out.println(" 发现设备: " + response.replaceAll("s+OKs+", "").replaceAll("n", "").replaceAll("r", ""));
}
catch (Exception e)
{
System.out.println(" 没有发现设备!");
}
}
else System.out.println(" 没有发现设备!");
serialPort.close();
}
catch (Exception e)
{
System.out.println(" 没有发现设备!");
}
}
}
}
}
}
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