使用Java自动检测哪个Com Port连接到USB GSM调制解调器
我写了一个Java应用程序，它从USB GSM调制解调器读取和发送SMS消息。 我正在使用SMSLib（使用JavaCommAPI），它在Windows上运行。 我需要传入COM PORT，调制解调器似乎已连接到。
到目前为止，我一直在使用Windows设备管理器手动查找COM PORT，并将其写入属性文件。 我想知道是否有办法检测哪个COM PORT，调制解调器以编程方式连接？
- 它可以省去每次查找它的麻烦
- 如果我有时拔下/重新插入端口号会更改
谢谢！！
package com.cubepro.util; import java.util.Collection; import java.util.Collections; import java.util.Enumeration; import java.util.Formatter; import org.apache.log4j.Logger; import org.smslib.helper.CommPortIdentifier; import com.cubepro.general.CommonConstants; import com.cubepro.util.SendMessage; public class CommPortTester { private static final String _NO_DEVICE_FOUND = " no device found"; private final static Formatter _formatter = new Formatter(System.out); private static Logger log = Logger.getLogger(CommPortTester.class); static CommPortIdentifier portId; static Enumeration portList; static int bauds[] = { 9600, 14400, 19200, 28800, 33600, 38400, 56000, 57600, 115200 }; public static final String MAINCLASS = "org.smslib.Service"; public CommPortTester() throws Exception { Class.forName(MAINCLASS); } /** * Wrapper around {@link CommPortIdentifier#getPortIdentifiers()} to be * avoid unchecked warnings. */ private static Enumeration getCleanPortIdentifiers() { return CommPortIdentifier.getPortIdentifiers(); } public String testAndQualifyPort() throws Exception { String status = CommonConstants.MODEM_STATUS_ERROR; SendMessage sendMessage = new SendMessage(); log.debug("\nSearching for devices..."); portList = getCleanPortIdentifiers(); while (portList.hasMoreElements()) { portId = portList.nextElement(); if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) { _formatter.format("%nFound port: %-5s%n", portId.getName()); try { if(portId.getName() boolean comPortSuccess = sendMessage.doIt(portId.getName()); if(comPortSuccess == true){ return portId.getName(); } } catch (final Exception e) { log.debug(" Modem error occured -",e); } } } log.debug("\nTest complete."); return status; } public static void main(String[]args){ try{ CommPortTester tester = new CommPortTester(); tester.testAndQualifyPort(); }catch(Exception e){ e.printStackTrace(); } } }