Pessoal,
Estou com um problema típico, pelo q eu tenho lido pelos tópicos, porém nenhuma solução sugerida servio para o meu caso, alguém pode me ajudar?
Minha classe não está conseguindo acessar o método da DLL, dá o seguinte erro:
2008-03-18 11:56:24,306 [http-8080-Processor4] ERROR org.apache.catalina.core.ContainerBase.[null].[localhost].[/].[default] - Servlet.service() for servlet default threw exception
java.lang.UnsatisfiedLinkError: Error looking up function 'method3': Não foi possível encontrar o procedimento especificado.
at com.sun.jna.Function.<init>(Function.java:126)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:219)
at com.sun.jna.Library$Handler.invoke(Library.java:191)
at $Proxy0.method3(Unknown Source)
at Servlet.JNI$Tarefa1.run(JNI.java:68)
at Servlet.FiltroLog.doFilter(FiltroLog.java:59)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:870)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
at java.lang.Thread.run(Unknown Source)
O meu código está estruturado da seguinte forma:
package Interface;
import com.sun.jna.Library;
public interface MySharedLibrary extends Library
{
public abstract int startProcess();
public abstract int GetCodigoAtivacao(String s);
public abstract String method2();
public abstract String method3(String conteudo);
}
package Servlet;
import java.io.IOException;
import java.io.OutputStream;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.codec.BinaryDecoder;
import org.apache.commons.codec.BinaryEncoder;
import org.apache.commons.codec.Decoder;
import org.apache.commons.codec.DecoderException;
import org.apache.commons.codec.Encoder;
import org.apache.commons.codec.EncoderException;
import com.sun.jna.Native;
import Interface.MySharedLibrary;
public class JNI extends HttpServlet implements BinaryDecoder, BinaryEncoder, Decoder, Encoder{
/**
*
*/
private static final long serialVersionUID = -7060817561462662817L;
static Class class$Interface$MySharedLibrary;
MySharedLibrary lib = null;
HttpServletRequest req;
HttpServletResponse res;
RequestDispatcher rd;
public String parametro;
/** Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
* @param request servlet request
* @param response servlet response
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
req = request;
res = response;
response.setContentType("application/x-shockwave-flash");
Tarefa1 carrega = new Tarefa1();
carrega.run();
}
public class Tarefa1{
public void run() {
System.setProperty("jna.library.path", System.getProperty("user.dir")) ;
MySharedLibrary lib = (MySharedLibrary) Native.loadLibrary("Projeto_DLL", MySharedLibrary.class);
try{
lib.method3(parametro);
OutputStream fos = res.getOutputStream();
fos.flush();
fos.close();
}catch(IOException io){
io.printStackTrace();
log("LOGGER JNI: " +io.getMessage());
}
}
}
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
/** Handles the HTTP <code>GET</code> method.
* @param request servlet request
* @param response servlet response
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/** Handles the HTTP <code>POST</code> method.
* @param request servlet request
* @param response servlet response
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/** Returns a short description of the servlet.
*/
public String getServletInfo() {
return "Short description";
}
// </editor-fold>
public byte[] decode(byte[] b) throws DecoderException {
return b;
}
public Object decode(Object object) throws DecoderException {
return object;
}
public byte[] encode(byte[] b) throws EncoderException {
return b;
}
public Object encode(Object object) throws EncoderException {
return object;
}
static Class _mthclass$(String x0)
{
try {
return Class.forName(x0);
} catch (ClassNotFoundException e) {
e.getMessage();
e.printStackTrace();
}
ClassNotFoundException x1 = null;
try {
throw (new NoClassDefFoundError()).initCause(x1);
} catch (Throwable e) {
e.printStackTrace();
}
return class$Interface$MySharedLibrary;
}
}
Já tentei tanta coisa, mais não achei uma solução, inclusive utilizei o software Anywhere PE Viewver 0.1.7 para constaatr se realmente posso utilizar o JNA e é possível visualizar o método o qual estou tentando chamar.
Estou com um problema muito parecido como pode ver, no meu caso, a classe não reconhece o método da DLL... você conseguiu achar uma solução para o seu caso?
