错误的ELF类：ELFCLASS32（可能的原因：体系结构字宽不匹配）
谷梁子昂
问题内容：
问题答案：
我有一个奇怪的异常，说错误的ELF类，但包装器设置正确。
要从Belgiun ID卡发行商的官方网站上使用此SDK读取Belgiun
ID卡：http
://eid.belgium.be/en/binaries/beid-
sdk-3.5.3-ubuntu-9.10-i686-6193_tcm147-94066_tcm406-114986 。
g
$ uname -a # Using NetBeans IDE 7.3 in Ubuntu 12.10 64-bit
Linux sun-M14xR2 3.5.0-25-generic #39-Ubuntu SMP Mon Feb 25 18:26:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
$ java -version
java version "1.7.0_15"
OpenJDK Runtime Environment (IcedTea7 2.3.7) (7u15-2.3.7-0ubuntu1~12.10.1)
OpenJDK 64-Bit Server VM (build 23.7-b01, mixed mode)
码：
package javaapplication1;
import java.lang.*;
import be.belgium.eid.*;
public class JavaApplication1 {
//*****************************************************************************
// Get the data and dump to the screen
// Beware: The data coming from the cards is encoded in UTF8!
//*****************************************************************************
private static void getSISData(BEID_SISCard card) throws Exception {
BEID_SisId sisId = card.getID();
System.out.println();
System.out.println("\tPeronal data:");
System.out.println("\t-------------");
System.out.println("\tName : " + sisId.getName());
System.out.println("\tSurname : " + sisId.getSurname());
System.out.println("\tInitials : " + sisId.getInitials());
System.out.println("\tGender : " + sisId.getGender());
System.out.println("\tDateOfBirth : " + sisId.getDateOfBirth());
System.out.println("\tSocialSecurityNumber : " + sisId.getSocialSecurityNumber());
System.out.println();
System.out.println("\tCard data:");
System.out.println("\t----------");
System.out.println("\tLogicalNumber : " + sisId.getLogicalNumber());
System.out.println("\tDateOfIssue : " + sisId.getDateOfIssue());
System.out.println("\tValidityBeginDate : " + sisId.getValidityBeginDate());
System.out.println("\tValidityEndDate : " + sisId.getValidityEndDate());
}
//*****************************************************************************
// Get the data from a Belgian SIS card
//*****************************************************************************
private static void getSISCardData(BEID_ReaderContext readerContext) throws Exception {
BEID_SISCard card = readerContext.getSISCard();
getSISData(card);
}
//*****************************************************************************
// Get the data and dump to the screen
// Beware: The data coming from the cards is encoded in UTF8!
//*****************************************************************************
private static void getEIDData(BEID_EIDCard card) throws Exception {
BEID_EId eid = card.getID();
if (card.isTestCard()) {
card.setAllowTestCard(true);
System.out.println("");
System.out.println("Warning: This is a test card.");
}
System.out.println("\tDocumentVersion : " + eid.getDocumentVersion());
System.out.println("\tDocumentType : " + eid.getDocumentType());
System.out.println();
System.out.println("\tPeronal data:");
System.out.println("\t-------------");
System.out.println("\tFirstName : " + eid.getFirstName());
System.out.println("\tSurname : " + eid.getSurname());
System.out.println("\tGender : " + eid.getGender());
System.out.println("\tDateOfBirth : " + eid.getDateOfBirth());
System.out.println("\tLocationOfBirth : " + eid.getLocationOfBirth());
System.out.println("\tNobility : " + eid.getNobility());
System.out.println("\tNationality : " + eid.getNationality());
System.out.println("\tNationalNumber : " + eid.getNationalNumber());
System.out.println("\tSpecialOrganization: " + eid.getSpecialOrganization());
System.out.println("\tMemberOfFamily : " + eid.getMemberOfFamily());
System.out.println("\tAddressVersion : " + eid.getAddressVersion());
System.out.println("\tStreet : " + eid.getStreet());
System.out.println("\tZipCode : " + eid.getZipCode());
System.out.println("\tMunicipality : " + eid.getMunicipality());
System.out.println("\tCountry : " + eid.getCountry());
System.out.println("\tSpecialStatus : " + eid.getSpecialStatus());
System.out.println("");
System.out.println("\tCard data:");
System.out.println("\t----------");
System.out.println("\tLogicalNumber : " + eid.getLogicalNumber());
System.out.println("\tChipNumber : " + eid.getChipNumber());
System.out.println("\tValidityBeginDate : " + eid.getValidityBeginDate());
System.out.println("\tValidityEndDate : " + eid.getValidityEndDate());
System.out.println("\tIssuingMunicipality: " + eid.getIssuingMunicipality());
}
//*****************************************************************************
// Get the data from a Belgian kids EID card
//*****************************************************************************
private static void getKidsCardData(BEID_ReaderContext readerContext) throws Exception {
BEID_KidsCard card = readerContext.getKidsCard();
getEIDData(card);
}
//*****************************************************************************
// Get the data from a Belgian foreigner EID card
//*****************************************************************************
private static void getForeignerCardData(BEID_ReaderContext readerContext) throws Exception {
BEID_ForeignerCard card = readerContext.getForeignerCard();
getEIDData(card);
}
//*****************************************************************************
// Get the data from a Belgian EID card
//*****************************************************************************
private static void getEidCardData(BEID_ReaderContext readerContext) throws Exception {
BEID_EIDCard card = readerContext.getEIDCard();
getEIDData(card);
}
//*****************************************************************************
// get a string representation of the card type
//*****************************************************************************
private static String getCardTypeStr(BEID_ReaderContext readerContext) throws Exception {
String strCardType = "UNKNOWN";
BEID_CardType cardType = readerContext.getCardType();
if (cardType == BEID_CardType.BEID_CARDTYPE_EID) {
strCardType = "BEID_CARDTYPE_EID";
} else if (cardType == BEID_CardType.BEID_CARDTYPE_KIDS) {
strCardType = "BEID_CARDTYPE_KIDS";
} else if (cardType == BEID_CardType.BEID_CARDTYPE_FOREIGNER) {
strCardType = "BEID_CARDTYPE_FOREIGNER";
} else if (cardType == BEID_CardType.BEID_CARDTYPE_SIS) {
strCardType = "BEID_CARDTYPE_SIS";
} else {
strCardType = "BEID_CARDTYPE_UNKNOWN";
}
return strCardType;
}
//*****************************************************************************
// Show the info of the card in the reader
//*****************************************************************************
private static void showCardInfo(String readerName) throws Exception {
BEID_ReaderContext readerContext = BEID_ReaderSet.instance().getReaderByName(readerName);
if (readerContext.isCardPresent()) {
System.out.println("\tType : " + getCardTypeStr(readerContext));
BEID_CardType cardType = readerContext.getCardType();
if (cardType == BEID_CardType.BEID_CARDTYPE_EID) {
getEidCardData(readerContext);
} else if (cardType == BEID_CardType.BEID_CARDTYPE_KIDS) {
getKidsCardData(readerContext);
} else if (cardType == BEID_CardType.BEID_CARDTYPE_FOREIGNER) {
getForeignerCardData(readerContext);
} else if (cardType == BEID_CardType.BEID_CARDTYPE_SIS) {
getSISCardData(readerContext);
} else {
}
}
}
//*****************************************************************************
// Show the reader info an get the data of the card if present
//*****************************************************************************
private static void showReaderCardInfo(String readerName) throws Exception {
BEID_ReaderContext readerContext = BEID_ReaderSet.instance().getReaderByName(readerName);
System.out.println("Reader: " + readerName);
System.out.println("\tCard present: " + (readerContext.isCardPresent() ? "yes" : "no"));
showCardInfo(readerName);
System.out.println("");
}
//*****************************************************************************
// scan all the card readers and if a card is present, show the content of the
// card.
//*****************************************************************************
private static void scanReaders() throws Exception {
long nrReaders = BEID_ReaderSet.instance().readerCount();
System.out.println("Nr of card readers detected: " + nrReaders);
for (int readerIdx = 0; readerIdx < nrReaders; readerIdx++) {
String readerName = BEID_ReaderSet.instance().getReaderName(readerIdx);
showReaderCardInfo(readerName);
}
}
//*****************************************************************************
// Main entry point
//*****************************************************************************
public static void main(String argv[]) {
System.out.println("[Info] eID SDK sample program: read_eid");
String osName = System.getProperty("os.name");
if (-1 != osName.indexOf("Windows")) {
System.out.println("[Info] Windows system!!");
System.loadLibrary("beid35libJava_Wrapper");
} else {
System.loadLibrary("beidlibJava_Wrapper");
}
try {
BEID_ReaderSet.initSDK();
scanReaders();
} catch (BEID_Exception e) {
System.out.println("[Catch] BEID_Exception:" + e.GetError());
} catch (Exception e) {
System.out.println("[Catch] Exception:" + e.getMessage());
}
try {
BEID_ReaderSet.releaseSDK();
} catch (BEID_Exception e) {
System.out.println("[Catch] BEID_Exception:" + e.GetError());
} catch (Exception e) {
System.out.println("[Catch] Exception:" + e.getMessage());
}
}
}
输出：
[Info] eID SDK sample program: read_eid
Exception in thread "main" java.lang.UnsatisfiedLinkError: /home/sun/Downloads/beidsdk/beidlib/Java/unsigned/libbeidlibJava_Wrapper.so.3.5.3: /home/sun/Downloads/beidsdk/beidlib/Java/unsigned/libbeidlibJava_Wrapper.so.3.5.3: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch)
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1750)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1675)
at java.lang.Runtime.loadLibrary0(Runtime.java:840)
at java.lang.System.loadLibrary(System.java:1047)
at javaapplication1.JavaApplication1.main(JavaApplication1.java:269)
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)
编辑：
https://code.google.com/p/eid-viewer/ https://code.google.com/p/eid-mw/
问题答案：
它不起作用，因为您使用的是64位版本的Java，并且您尝试使用的SDK包含32位本机库（libbeidlibJava_Wrapper.so.3.5.3）。64位JRE无法加载32位本机库。
您需要使用32位Java版本，或者查找具有64位本机库的SDK版本。
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