JNA 실천
19089 단어 java 기초
JNA 사용 요약
환경 구축
1. JDK 버전의 자릿수, DLL 자릿수와 일치해야 합니다. 그렇지 않으면 다음 오류로 돌아갑니다.
"Exception in thread"main"Java.lang. UnsatisfiedLink Error: Unable to load library"RWBIF.dll": 지정된 모듈을 찾을 수 없습니다."2. JAVA DLL 경로 지정
public static String DEFAULT_NXT_DLL_NAME = "RWBIF";
NxtService nxtServiceInstance = Native.loadLibrary(DEFAULT_NXT_DLL_NAME,
NxtService.class);
NxtManager.programName = "C:\\java\\code\
xt_plus\\RWBIF.dll";
NxtService nxtServiceInstance = (NxtService) Native.loadLibrary(NxtManager.programName, NxtService.class);
// https://mvnrepository.com/artifact/net.java.dev.jna/jna
compile group: 'net.java.dev.jna', name: 'jna', version: '4.5.0'
JNA 사용
1. Java 및 JNA 유형 매핑http://java-native-access.github.io/jna/4.4.0/javadoc/overview-summary.html#structures2. Java 및 JNA 기본 유형 매핑
```
typedef struct _tag_RWBIF_PANELIDINFO_EX
{
TCHAR szBarcode[68];//typedefine char TCHAR
INT nLane;
} RWBIF_PANELIDINFO_EX, *PRWBIF_PANELIDINFO_EX;
```
Java:
public static class RWBIF_PANELIDINFO_EX extends Structure {
public byte[] szBarcode = new byte[68];
public int nLane;
@Override
protected List getFieldOrder() {
// TODO Auto-generated method stub
return Arrays.asList(new String[] { "szBarcode", "nLane" });
}
}
[ ]：fileOrder
구조체 구조체 포인터나 구조체 인용을 호출하여 Structure를 실현합니다.ByReference 직접 전송은 Structure를 실현해야 합니다.ByValue
C++
typedef struct _tag_RWBIF_AUTO_JOB_CHG_RESULT
{
TCHAR szMcName[32];
DWORD dwErrorCode;
} RWBIF_AUTO_JOB_CHG_RESULT, *PRWBIF_AUTO_JOB_CHG_RESULT;
java
public static class RWBIF_AUTO_JOB_CHG_RESULT extends Structure {
public static class ByReference extends RWBIF_AUTO_JOB_CHG_RESULT implements Structure.ByReference {
}
public static class ByValue extends RWBIF_AUTO_JOB_CHG_RESULT implements Structure.ByValue {
}
public byte[] szMcName = new byte[32];
public int dwErrorCode;
@Override
protected List getFieldOrder() {
// TODO Auto-generated method stub
return Arrays.asList(new String[] { "szMcName", "dwErrorCode" });
}
}
복잡한 구조체, 그 구성원 함수는 구조체의 지침이나 인용을 포함한다
C++
typedef struct _tag_RWBIF_HELPS_CHGOVERJOB
{
INT nLane;
RWBIF_JOBINFO_EX stJob;
} RWBIF_HELPS_CHGOVERJOB, *PRWBIF_HELPS_CHGOVERJOB;
RWBIF_JOBINFO_EX ，
java
public static class PRWBIF_HELPS_CHGOVERJOB extends Structure {
public static class ByReference extends PRWBIF_HELPS_CHGOVERJOB implements Structure.ByReference {
}
public static class ByValue extends PRWBIF_HELPS_CHGOVERJOB implements Structure.ByValue {
}
public int nLane;
public RWBIF_JOBINFO_EX stJob;
@Override
protected List getFieldOrder() {
// TODO Auto-generated method stub
return Arrays.asList(new String[] { "nLane", "stJob" });
}
}
C++
typedef INT (*pChangeOverJob)(LPCTSTR szSrv, LPCTSTR szLine, LPCTSTR szEquip, INT nJobChgMode, INT nQty, INT nSize, PRWBIF_HELPS_CHGOVERJOB pArg);
PRWBIF_HELPS_CHGOVERJOB ， java
java
int iChangeOverJob(String szSrv, String szLine, String szEquip, int nJobChgMode, int nQty, int nSize,
PRWBIF_HELPS_CHGOVERJOB[] pArg);
PRWBIF_HELPS_CHGOVERJOB[] pArg
복합 매개변수:포인터 참조, JNA 매개변수 대체
C++
typedef INT (*pGetAutoJobChgResult)(PRWBIF_AUTO_JOB_CHG_RESULT &rval);
PRWBIF_AUTO_JOB_CHG_RESULT ， byReference[]
int iGetAutoJobChgResult(RWBIF_AUTO_JOB_CHG_RESULT.ByReference[] rval);
JNA ：C++
public interface NxtService extends Library {
/** The default nxt dll name. */
public static String DEFAULT_NXT_DLL_NAME = "RWBIF";
/**
* The Class _tag_RWBIF_PANELIDINFO_EX.
*/
public static class RWBIF_PANELIDINFO_EX extends Structure {
public byte[] szBarcode = new byte[68];
public int nLane;
@Override
protected List getFieldOrder() {
// TODO Auto-generated method stub
return Arrays.asList(new String[] { "szBarcode", "nLane" });
}
}
public static class RWBIF_AUTO_JOB_CHG_RESULT extends Structure {
public static class ByReference extends RWBIF_AUTO_JOB_CHG_RESULT implements Structure.ByReference {
}
public static class ByValue extends RWBIF_AUTO_JOB_CHG_RESULT implements Structure.ByValue {
}
public byte[] szMcName = new byte[32];
public int dwErrorCode;
@Override
protected List getFieldOrder() {
// TODO Auto-generated method stub
return Arrays.asList(new String[] { "szMcName", "dwErrorCode" });
}
}
public static class RWBIF_JOBINFO_EX extends Structure {
public static class ByReference extends RWBIF_JOBINFO_EX implements Structure.ByReference {
}
public static class ByValue extends RWBIF_JOBINFO_EX implements Structure.ByValue {
}
public byte[] szJobName = new byte[128];
public byte[] szRevision = new byte[16];
public int nSide;
@Override
protected List getFieldOrder() {
// TODO Auto-generated method stub
return Arrays.asList(new String[] { "szJobName", "szRevision", "nSide" });
}
}
public static class PRWBIF_HELPS_CHGOVERJOB extends Structure {
public static class ByReference extends PRWBIF_HELPS_CHGOVERJOB implements Structure.ByReference {
}
public static class ByValue extends PRWBIF_HELPS_CHGOVERJOB implements Structure.ByValue {
}
public int nLane;
public RWBIF_JOBINFO_EX stJob;
@Override
protected List getFieldOrder() {
// TODO Auto-generated method stub
return Arrays.asList(new String[] { "nLane", "stJob" });
}
}
int iSendBarcodeIdEx(String szSrv, String szLine, String szEquip, int nJobChgMode, int nQty, int nSize,
RWBIF_PANELIDINFO_EX[] pArg);
int iGetRecipeChgProgress(String szSrv, String szLine, String szEquip, IntByReference rdwStatus);
int iGetAutoJobChgEquipQty(IntByReference rnQty, String szSrv, String szLine, String szEquip);
void iDelGetAutoJobChgResult();
int iGetAutoJobChgResult(RWBIF_AUTO_JOB_CHG_RESULT.ByReference[] rval);
int iChangeOverJob(String szSrv, String szLine, String szEquip, int nJobChgMode, int nQty, int nSize,
PRWBIF_HELPS_CHGOVERJOB[] pArg);
}
JNA ：
public class NxtManager {
public static String DEFAULT_NXT_PROPERTIES = "nxt.properties";
private static String programName;
private static String m_strRWBSeverPC;
private static String m_strLine;
private static String m_strEquip;
private static String barcodeID;
private static String lane;
private static String szJobName;
private static String version;
private static String nSide;
private static String encode;
static {
InputStream inputStream = Thread.currentThread().getContextClassLoader()
.getResourceAsStream(DEFAULT_NXT_PROPERTIES);
Properties properties = new Properties();
try {
properties.load(inputStream);
programName = properties.getProperty("programName");
m_strRWBSeverPC = properties.getProperty("server");
m_strLine = properties.getProperty("lineName");
m_strEquip = properties.getProperty("equipName");
barcodeID = properties.getProperty("barcodeId");
lane = properties.getProperty("lane");
szJobName = properties.getProperty("jobName");
version = properties.getProperty("revision");
nSide = properties.getProperty("side");
encode = properties.getProperty("encode");
System.setProperty("jna.encoding", encode);
} catch (IOException e) {
// TODO Auto-generated catch block
System.out.format("load nxt properties failed.");
e.printStackTrace();
}
}
public void onChangeoverJob() {
NxtService nxtServiceInstance = (NxtService) Native.loadLibrary(NxtManager.programName, NxtService.class);
int nDataQty = 1;
int nIndex = 1;
System.out.println("init---------->set value:");
System.out.println("nLane:" + Integer.valueOf(NxtManager.lane));
System.out.println("szJobName:" + NxtManager.szJobName);
System.out.println("szRevision:" + NxtManager.version);
System.out.println("nSide:" + Integer.valueOf(NxtManager.nSide));
PRWBIF_HELPS_CHGOVERJOB[] prwbifHelpsChangeoverJob = (PRWBIF_HELPS_CHGOVERJOB[]) new NxtService.PRWBIF_HELPS_CHGOVERJOB()
.toArray(nDataQty);
prwbifHelpsChangeoverJob[0].nLane = Integer.valueOf(NxtManager.lane);
RWBIF_JOBINFO_EX.ByValue stJobRef = new RWBIF_JOBINFO_EX.ByValue();
stJobRef.nSide = Integer.valueOf(NxtManager.nSide);
// ，java
System.arraycopy(NxtManager.szJobName.getBytes(), 0, stJobRef.szJobName, 0, NxtManager.szJobName.getBytes().length);
System.arraycopy(NxtManager.version.getBytes(), 0, stJobRef.szRevision, 0, NxtManager.version.getBytes().length);
prwbifHelpsChangeoverJob[0].stJob = stJobRef;
System.out.println("init---------->set value:end");
int nJobChgMode = 1;
int nSize = 152;
System.out.println("iChangeOverJob---------->start");
int nRet = nxtServiceInstance.iChangeOverJob(NxtManager.m_strRWBSeverPC, NxtManager.m_strLine,
NxtManager.m_strEquip, nJobChgMode, nDataQty, nSize, prwbifHelpsChangeoverJob);
if (0 != nRet) {
System.out.format("API call [iChangeOverJob]: Error Code = %08x )", nRet);
return;
}
System.out.println("iChangeOverJob---------->end");
try {
System.out.format(" 7s");
Thread.sleep(TimeUnit.SECONDS.toMillis(7));
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return;
}
while (true) {
IntByReference dwStatus = new IntByReference(0);
System.out.println("iGetRecipeChgProgress---------->LOOP");
nRet = nxtServiceInstance.iGetRecipeChgProgress(NxtManager.m_strRWBSeverPC, NxtManager.m_strLine,
NxtManager.m_strEquip, dwStatus);
if (0 != nRet) {
System.out.format("API call [iGetRecipeChgProgress]: Error Code = %08x )", nRet);
return;
}
int dwStatusValue = dwStatus.getValue();
if (2 == dwStatusValue) {
break;
}
try {
System.out.format(" 7s ， complete(2)");
Thread.sleep(TimeUnit.SECONDS.toMillis(7));
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return;
}
}
System.out.println("iGetRecipeChgProgress---------->end,LOOP");
IntByReference rnQty = new IntByReference(0);
System.out.println("iGetAutoJobChgEquipQty---------->start");
nRet = nxtServiceInstance.iGetAutoJobChgEquipQty(rnQty, NxtManager.m_strRWBSeverPC, NxtManager.m_strLine,
NxtManager.m_strEquip);
if (0 != nRet) {
nxtServiceInstance.iDelGetAutoJobChgResult();
}
System.out.println("iGetAutoJobChgEquipQty---------->end");
int rnQtyValue = rnQty.getValue();
if (0 >= rnQtyValue) {
nxtServiceInstance.iDelGetAutoJobChgResult();
System.out.format("Error : Change over Result.(1)");
return;
}
RWBIF_AUTO_JOB_CHG_RESULT.ByReference[] pResult = (ByReference[]) new NxtService.RWBIF_AUTO_JOB_CHG_RESULT.ByReference()
.toArray(rnQtyValue);
System.out.println("iGetAutoJobChgResult---------->start");
nRet = nxtServiceInstance.iGetAutoJobChgResult(pResult);
if (0 != nRet) {
nxtServiceInstance.iDelGetAutoJobChgResult();
System.out.format("API call [iGetAutoJobChgEquipQty]: Error Code = %08x )", nRet);
return;
}
System.out.println("iGetAutoJobChgResult---------->end");
boolean bResultOK = false;
for (int i = 0; i < rnQtyValue; i++) {
System.out.println("iDelGetAutoJobChgResult---------->Loop");
String szMcNameStr = new String(pResult[i].szMcName);
if (NxtManager.m_strEquip.trim().equals(szMcNameStr.trim())) {
if (0 != pResult[i].dwErrorCode) {
nxtServiceInstance.iDelGetAutoJobChgResult();
System.out.format("Error Code = %08x" + pResult[i].dwErrorCode);
return;
}
bResultOK = true;
break;
}
}
System.out.println("iDelGetAutoJobChgResult---------->Loop end");
if (false == bResultOK) {
nxtServiceInstance.iDelGetAutoJobChgResult();
System.out.format("Error : Change over Result.(2)");
return;
}
nxtServiceInstance.iDelGetAutoJobChgResult();
System.out.format("Change over from job complete.");
return;
}
/*
* public static void main(String[] args) { NxtManager nxtManager = new
* NxtManager(); nxtManager.onChangeoverJob(); }
*/
public void OnChangeoverId() throws UnsupportedEncodingException {
System.out.println(System.getProperty("jna.encoding"));
NxtService nxtServiceInstance = (NxtService) Native.loadLibrary(NxtManager.programName, NxtService.class);
// String m_strRWBSeverPC = "10.187.0.54";
// String m_strLine = "H12";
// String m_strEquip = "NXT-H12";
int nJobChgMode = 1;
int nIndex = 1;
int nDataQty = 1;
int nSize = 140;
// set lane and barcode id
RWBIF_PANELIDINFO_EX[] pArg = (RWBIF_PANELIDINFO_EX[]) new NxtService.RWBIF_PANELIDINFO_EX().toArray(1);
pArg[0].szBarcode = NxtManager.barcodeID.getBytes();
pArg[0].nLane = Integer.valueOf(NxtManager.lane);
System.out.println("SendBarcodeId---------->start");
int nRet = nxtServiceInstance.iSendBarcodeIdEx(NxtManager.m_strRWBSeverPC, NxtManager.m_strLine,
NxtManager.m_strEquip, nJobChgMode, nDataQty, nSize, pArg);
if (0 != nRet) {
System.out.format("API call [iSendBarcodeIdEx]: Error Code = %08x )", nRet);
return;
}
System.out.println("SendBarcodeId---------->success");
try {
System.out.format(" 7s ， complete(2)");
Thread.sleep(TimeUnit.SECONDS.toMillis(7));
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return;
}
while (true) {
IntByReference dwStatus = new IntByReference(0);
System.out.println("GetRecipeChgProgress---------->Loop");
nRet = nxtServiceInstance.iGetRecipeChgProgress(NxtManager.m_strRWBSeverPC, NxtManager.m_strLine,
NxtManager.m_strEquip, dwStatus);
if (0 != nRet) {
System.out.format("API call [iGetRecipeChgProgress]: Error Code = %08x )", nRet);
return;
}
int dwStatusValue = dwStatus.getValue();
if (2 == dwStatusValue) {
break;
}
try {
System.out.format(" 7s ， complete(2)");
Thread.sleep(TimeUnit.SECONDS.toMillis(7));
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return;
}
}
System.out.println("GetRecipeChgProgress---------->loop end");
IntByReference rnQty = new IntByReference(0);
System.out.println("GetAutoJobChgEquipQty---------->start");
nRet = nxtServiceInstance.iGetAutoJobChgEquipQty(rnQty, NxtManager.m_strRWBSeverPC, NxtManager.m_strLine,
NxtManager.m_strEquip);
if (0 != nRet) {
System.out.format("API call [iGetAutoJobChgEquipQty]: Error Code = %08x )", nRet);
return;
}
System.out.println("GetAutoJobChgEquipQty---------->end");
// RWBIF_AUTO_JOB_CHG_RESULT rval = new
// NxtService.RWBIF_AUTO_JOB_CHG_RESULT();
int size = rnQty.getValue();
System.out.println("------------DEBUG------------->size" + size);
if (0 >= size) {
nxtServiceInstance.iDelGetAutoJobChgResult();
System.out.format("Error : Change over Result.(1)");
return;
}
// RWBIF_AUTO_JOB_CHG_RESULT.ByValue[] rval = (ByValue[]) new NxtService.RWBIF_AUTO_JOB_CHG_RESULT.ByValue().toArray(size);
RWBIF_AUTO_JOB_CHG_RESULT.ByReference[] rval = (ByReference[]) new NxtService.RWBIF_AUTO_JOB_CHG_RESULT.ByReference().toArray(size);
System.out.println("GetAutoJobChgResult---------->start");
// nRet = nxtServiceInstance.iGetAutoJobChgResult(rval);
nRet = nxtServiceInstance.iGetAutoJobChgResult(rval);
if (0 != nRet) {
System.out.format("API call [iGetAutoJobChgResult]: Error Code = %08x )", nRet);
return;
}
System.out.println("GetAutoJobChgResult---------->end");
boolean bResultOK = false;
for (int i = 0; i < size; i++) {
System.out.println("debug:current system encode:" + StringUtils.getEncoding(NxtManager.m_strEquip));
String szMcNameStr = new String(rval[i].szMcName,StringUtils.getEncoding(NxtManager.m_strEquip));
System.out.println("debug:szMcNameStr ----->" + szMcNameStr + ":" + szMcNameStr.length());
System.out.println("debug:m_strEquip ----->" + NxtManager.m_strEquip + ":" + NxtManager.m_strEquip.length());
String tempStrEquip = new String(NxtManager.m_strEquip.getBytes(),StringUtils.getEncoding(NxtManager.m_strEquip));
if (NxtManager.m_strEquip.equals(tempStrEquip)) {
if (rval[i].dwErrorCode != 0) {
nxtServiceInstance.iDelGetAutoJobChgResult();
System.out.format("Error Code = %08x", rval[i].dwErrorCode);
return;
}
bResultOK = true;
System.out.println("debug:String equal:ok");
break;
}
}
if (false == bResultOK) {
nxtServiceInstance.iDelGetAutoJobChgResult();
System.out.format("Error : Change over Result.(2)");
return;
}
System.out.println("success");
nxtServiceInstance.iDelGetAutoJobChgResult();
System.out.format("Change over from barcode ID complete.");
}
public static void main(String[] args) {
if (args.length < 1 || args.length > 2) {
System.out.println(" ");
return;
}
boolean isExit = false;
try {
int model = Integer.valueOf(args[0]);
NxtManager nxtManager = new NxtManager();
switch (model) {
case 0:
System.out.println("OnChangeoverId: barcodeId ");
nxtManager.OnChangeoverId();
break;
case 1:
System.out.println("onChangeoverJob: jobName ");
nxtManager.onChangeoverJob();
break;
default:
System.out.println(" ");
break;
}
} catch (Exception e) {
// TODO Auto-generated catch block
System.out.println(" ");
e.printStackTrace();
}
}
}
이 내용에 흥미가 있습니까?
현재 기사가 여러분의 문제를 해결하지 못하는 경우 AI 엔진은 머신러닝 분석(스마트 모델이 방금 만들어져 부정확한 경우가 있을 수 있음)을 통해 가장 유사한 기사를 추천합니다:
Java 네트워크 프로그래밍의 UDP 서버 및 클라이언트 프로그램서버: 클라이언트: UDP: 클라이언트를 열어 데이터를 받을 때까지 기다린 다음 서버를 열어 데이터를 보냅니다....
텍스트를 자유롭게 공유하거나 복사할 수 있습니다.하지만 이 문서의 URL은 참조 URL로 남겨 두십시오.
CC BY-SA 2.5, CC BY-SA 3.0 및 CC BY-SA 4.0에 따라 라이센스가 부여됩니다.
좋은 웹페이지 즐겨찾기
