Java中COM端口的友好名称？

我正在开发一个项目，我必须访问COM端口。目前我正在使用winjcom访问并列出连接的设备。我的问题是我想显示友好名称而不是COM3，COM4等。Java中COM端口的友好名称？

我发现一个线程

Getting device/driver information related to a COM port?

能得到好记的名称，但是这是基于我知道的PID，VID和设备ID的脸。我想在所有连接的设备上使用它。

希望你们能帮助我。 :)

2012-04-17 René Josefsen

作为示例，我使用 https://stackoverflow.com/a/15348278/398348 中的代码调用WinRegistry.getStringSubKeys（）。请参阅，您不需要知道设备ID。您可以使用相同的逻辑，但可能必须在代码中使用递归来遍历较低的分支。

来源

2013-03-13 14:38:31 likejiujitsu

使用JNA（https://github.com/twall/jna）并看看下面的页面。这可能是一个有用的观点。

http://www.digitalinferno.com/wiki/Wiki.jsp?page=JNAPrintDevices

来源

2014-08-19 11:46:18 stefan222

该代码使用Windows动态链接库SETUPAPI通过JNA获得COM端口的描述：

final SetupApi2 setupApi = SetupApi2.INSTANCE; 
int SPDRP_FRIENDLYNAME = 12; 

WinNT.HANDLE handle = setupApi.SetupDiGetClassDevsA(null, null, null, SetupApi.DIGCF_ALLCLASSES); 

SetupApi.SP_DEVINFO_DATA devInfo = new SetupApi.SP_DEVINFO_DATA(); 
int indice = 0; 

while (setupApi.SetupDiEnumDeviceInfo (handle, indice, devInfo) 
    ) { 
     char[] windowText1 = new char[255]; 
    IntByReference flag = new IntByReference(0); 

    IntByReference PropertyRegDataType = new IntByReference(); 
    byte[] descripcionByte = new byte[255]; 

    if ((setupApi.SetupDiGetDeviceInstanceIdA(handle, devInfo, windowText1, windowText1.length, flag))) { 
     if ((setupApi.SetupDiGetDeviceRegistryPropertyA(handle, devInfo, SPDRP_FRIENDLYNAME, PropertyRegDataType, descripcionByte, descripcionByte.length, flag))) { 
      String descripcionString = Native.toString(descripcionByte); 
      System.out.println(descripcionString); 
     } 
    } 
    indice++; 
} 

import com.sun.jna.Library; 
import com.sun.jna.Native; 
import com.sun.jna.Pointer; 
import com.sun.jna.Structure; 
import com.sun.jna.platform.win32.Guid.GUID; 
import com.sun.jna.platform.win32.SetupApi; 
import com.sun.jna.platform.win32.SetupApi.SP_DEVICE_INTERFACE_DATA; 
import com.sun.jna.platform.win32.SetupApi.SP_DEVINFO_DATA; 
import com.sun.jna.platform.win32.WinBase; 
import com.sun.jna.platform.win32.WinDef; 
import com.sun.jna.platform.win32.WinNT; 
import com.sun.jna.ptr.IntByReference; 
import java.util.Arrays; 
import java.util.List; 

public interface SetupApi2 extends Library { 

SetupApi2 INSTANCE = (SetupApi2) Native.loadLibrary("setupapi", SetupApi2.class); 

public static class HDEVINFO extends WinNT.HANDLE { 
} 

public static class SP_DRVINFO_DATA extends Structure { 

    public SP_DRVINFO_DATA() { 
     DriverDate = new WinBase.FILETIME(); 
    } 
    public int cbSize; 
    public int DriverType; 
    public int Reserved; 
    public char[] Description = new char[255]; 
    public char[] MfgName = new char[255]; 
    public char[] ProviderName = new char[255]; 
    public WinBase.FILETIME DriverDate; 
    public int DriverVersion; 

    protected List getFieldOrder() { 
     return Arrays.asList("cbSize", 
       "DriverType", 
       "Reserved", 
       "Description", 
       "MfgName", 
       "ProviderName", 
       "DriverDate", 
       "DriverVersion"); 
    } 
} 

public static class SP_DEVICE_INTERFACE_DETAIL_DATA extends Structure { 

    public static class ByReference extends SP_DEVINFO_DATA implements Structure.ByReference { 

     public ByReference() { 
     } 

     public ByReference(Pointer memory) { 
      super(memory); 
     } 
    } 

    public SP_DEVICE_INTERFACE_DETAIL_DATA() { 
     cbSize = size(); 
     setAlignType(Structure.ALIGN_NONE); 
    } 

    public SP_DEVICE_INTERFACE_DETAIL_DATA(int size) { 
     cbSize = size(); 
     devicePath = new char[size]; 
     setAlignType(Structure.ALIGN_NONE); 
    } 

    public SP_DEVICE_INTERFACE_DETAIL_DATA(Pointer memory) { 
     super(memory); 
     read(); 
    } 

    /** 
    * The size, in bytes, of the SP_DEVINFO_DATA structure. 
    */ 
    public int cbSize; 

    public char[] devicePath = new char[1]; 

    protected List getFieldOrder() { 
     return Arrays.asList("cbSize", 
       "devicePath"); 
    } 
} 

public static int DIGCF_DEFAULT = 0x00000001; 
public static int DIGCF_PRESENT = 0x00000002; 
public static int DIGCF_ALLCLASSES = 0x00000004; 
public static int DIGCF_PROFILE = 0x00000008; 
public static int DIGCF_DEVICEINTERFACE = 0x00000010; 
public static int SPDRP_DRIVER = 0x00000009; 
public static int SPDRP_INSTALL_STATE = 0x00000022; 

WinNT.HANDLE SetupDiGetClassDevsA(GUID Guid, String Enumerator, WinDef.HWND Parent, int Flags); 

boolean SetupDiEnumDeviceInfo(WinNT.HANDLE DeviceInfoSet, int MemberIndex, SP_DEVINFO_DATA DeviceInfoData); 

int SetupDiEnumDeviceInterfaces(HDEVINFO DeviceInfoSet, SP_DEVINFO_DATA DeviceInfoData, GUID Guid, int MemberIndex, SP_DEVICE_INTERFACE_DATA DeviceInterfaceData); 

int SetupDiGetDeviceInterfaceDetail(HDEVINFO DeviceInfoSet, SP_DEVICE_INTERFACE_DATA DeviceInterfaceData, SP_DEVICE_INTERFACE_DETAIL_DATA DeviceInterfaceDetailData, int DeviceInterfaceDetailDataSize, IntByReference RequiredSize, SP_DEVINFO_DATA DeviceInfoData); 

int SetupDiDestroyDeviceInfoList(HDEVINFO DeviceInfoSet); 

boolean SetupDiGetDeviceInstanceIdA(WinNT.HANDLE DeviceInfoSet, SP_DEVINFO_DATA DeviceInfoData, char[] DeviceId, int DeviceInstanceIdSize, IntByReference RequiredSize); 

boolean SetupDiClassNameFromGuid(GUID Guid, char[] ClassName, int ClassNameSize, IntByReference RequiredSize); 

boolean SetupDiGetSelectedDriver(HDEVINFO DeviceInfoSet, SP_DEVINFO_DATA DeviceInfoData, SP_DRVINFO_DATA DriverInfoData); 

boolean SetupDiClassGuidsFromName(String ClassName, GUID[] ClassGuidList, int ClassGuidListSize, IntByReference RequiredSize); 

boolean SetupDiGetDeviceRegistryPropertyA(WinNT.HANDLE DeviceInfoSet, SP_DEVINFO_DATA DeviceInfoData, int Property, IntByReference PropertyRegDataType, byte[] PropertyBuffer, int PropertyBufferSize, IntByReference RequiredSize); 
}

来源

2017-07-04 22:45:22

Java中COM端口的友好名称？

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