hi everybody
could anybody point me, y i'm getting this error?
Error: 500 Location: /servlet/IfI.querryInternal
Servlet Error:java.lang.NullPointerException
at IfI.querry.init(querry.java:17)
at javax.servlet.GenericServlet.init(GenericServlet.java:258)
at org.apache.tomcat.core.ServletWrapper.doInit(ServletWrapper.java:317)
at org.apache.tomcat.core.Handler.init(Handler.java:215)
at org.apache.tomcat.core.ServletWrapper.init(ServletWrapper.java:296)
at org.apache.tomcat.core.Handler.service(Handler.java:254)
at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:79
7)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
at
org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpC
onnectionHandler.java:210)
at
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498)
at java.lang.Thread.run(Thread.java:484)
here is the code:
package IfI;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class querry extends HttpServlet {
private static final String CONTENT_TYPE = "text/html";
/**Globale Variablen initialisieren*/
public void init() throws ServletException {
super.init();
String sDB_URL = getInitParameter("url");
String sDB_DRIVER = getInitParameter("driver");
String sDB_USER = getInitParameter("user");
String sDB_PWD = getInitParameter("pwd");
if
((sDB_URL.equals(""))||(sDB_DRIVER.equals(""))||(sDB_USER.equals(""))||(sDB_
PWD.equals("")))
{
System.err.println("keine Datenbankparameter gefunden, kann
Datenbankverbindung nicht aufbauen");
}
}
/**Die HTTP-Anforderung Post bearbeiten*/
public void doPost(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
String sLieferantenNummer = request.getParameter("lieferantenNummer");
String sLieferantenName = request.getParameter("lieferantenName");
String sEwaNummer = request.getParameter("ewaNummer");
String sBezeichnung = request.getParameter("bezeichnung");
String sLieferantBestellNummer =
request.getParameter("lieferantBestellNummer");
String sEinsatzOrt = request.getParameter("einsatzOrt");
if ((sLieferantenNummer.equals(""))&&(sLieferantenName.equals(""))
&&(sEwaNummer.equals(""))&&(sBezeichnung.equals(""))
&&(sLieferantBestellNummer.equals(""))&&(sEinsatzOrt.equals("")))
{
gotoPage("querry.jsp", request, response);
}
}
private void gotoPage(String address, HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException
{
RequestDispatcher dispatcher =
getServletContext().getRequestDispatcher(address);
dispatcher.forward(request, response);
}
/**Ressourcen bereinigen*/
public void destroy() {
}
}
_______________________________
Christian Häring
Siemens AG
A&D AS OIL B16
Werner von Siemens Str. 50
92224 Amberg
mailto:[EMAIL PROTECTED]
Tel: +49 9621 80 3127
Fax: +49 9621 80 2274
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