java - netbeans glassfish nullpointer server error -
package servlet; import manager.usermanager; import model.user; import java.io.ioexception; import java.io.printwriter; import javax.servlet.requestdispatcher; import javax.servlet.servletexception; import javax.servlet.http.httpservlet; import javax.servlet.http.httpservletrequest; import javax.servlet.http.httpservletresponse; import utils.iconstants; import utils.stringutils; public class loginservlet extends httpservlet { /** * processes requests both http <code>get</code> , <code>post</code> * methods. * * @param request servlet request * @param response servlet response * @throws servletexception if servlet-specific error occurs * @throws ioexception if i/o error occurs */ protected void processrequest(httpservletrequest request, httpservletresponse response) throws servletexception, ioexception {string email = request.getparameter("email"); string password = request.getparameter("password"); if (stringutils.isstringempty(email) || stringutils.isstringempty(password)) { requestdispatcher rd = request.getrequestdispatcher("/index.html"); rd.forward(request, response); } else { usermanager umgr = new usermanager(); user user = umgr.loginuser(email, password); if (user == null) { requestdispatcher rd = request.getrequestdispatcher("/index.html"); rd.forward(request, response); } else { request.getsession(true).setattribute(iconstants.session_key_user, user); if (user.getusertype().equals(iconstants.user_type_admin)) { requestdispatcher rd = request.getrequestdispatcher("/adminhome.jsp"); rd.forward(request, response); } else if (user.getusertype().equals(iconstants.user_type_general_user)) { requestdispatcher rd = request.getrequestdispatcher("/genuserhome.jsp"); rd.forward(request, response); } else { requestdispatcher rd = request.getrequestdispatcher("/index.html"); rd.forward(request, response); } } } } // <editor-fold defaultstate="collapsed" desc="httpservlet methods. click on + sign on left edit code."> /** * handles http <code>get</code> method. * * @param request servlet request * @param response servlet response * @throws servletexception if servlet-specific error occurs * @throws ioexception if i/o error occurs */ @override protected void doget(httpservletrequest request, httpservletresponse response) throws servletexception, ioexception { processrequest(request, response); } /** * handles http <code>post</code> method. * * @param request servlet request * @param response servlet response * @throws servletexception if servlet-specific error occurs * @throws ioexception if i/o error occurs */ @override protected void dopost(httpservletrequest request, httpservletresponse response) throws servletexception, ioexception { processrequest(request, response); } /** * returns short description of servlet. * * @return string containing servlet description */ @override public string getservletinfo() { return "short description"; }// </editor-fold> } when run code , try , login, keep getting this: server error 500: "java.lang.nullpointerexception"
were trying pass contents of html text fields function searches db email , password , returns user class.
if user class has type of "admin" login should take him admin page doesn't.
all nullpointexceptions seem linked passing email , password user manager ive tested setting specific values match db variable email , password still getting same error.
help appreciated.
output stack glassfish server: http://pastebin.com/yc6gtvip
you got lots of sql errors because database cannot found. underlying problem this:
java.io.filenotfoundexception: c:\users\112419442\desktop\bootstraplogin\sql\createdb.txt which prevents creation of database.
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