java - servlet throws a NPE cant figur out why - 


public class addmovieservlet extends httpservlet { private static final long serialversionuid = 1l;  /**  * @see httpservlet#httpservlet()  */ public addmovieservlet() {     super();     // todo auto-generated constructor stub }  @override protected void dopost(httpservletrequest req, httpservletresponse resp)         throws servletexception, ioexception {     super.dopost(req, resp);      process(req,resp); }   @override protected void doget(httpservletrequest req, httpservletresponse resp)         throws servletexception, ioexception {     // todo auto-generated method stub     super.doget(req, resp);     process(req,resp); }   //my process method protected void process(httpservletrequest req , httpservletresponse resp) {     //we set requests of elements of our movie      string name = req.getparameter("name");     long date = long.parselong(req.getparameter("reldate").tostring());     string lang = req.getparameter("lang");     int rating = integer.parseint(req.getparameter("rating"));     string descr = req.getparameter("descr");      string dburl = "jdbc:mysql://localhost:8080/moviedb";     string query = "insert movietable values (?,?,?,?,?)";      connection myconnection = null;     preparedstatement mystatement = null;      try {         class.forname("com.mysql.jdbc.driver");         myconnection = drivermanager.getconnection(dburl,"root","root");         mystatement = myconnection.preparestatement(query);         mystatement.setstring(1, name);         mystatement.setlong(2, (int)date);         mystatement.setstring(3, lang);         mystatement.setint(4, rating);         mystatement.setstring(5, descr);         int insertedornot = mystatement.executeupdate();         system.out.println("inserted " + insertedornot);     } catch (classnotfoundexception | sqlexception e) {         // todo auto-generated catch block         e.printstacktrace();     }finally     {         try {             if(myconnection!=null)                 myconnection.close();         } catch (sqlexception e) {             // todo auto-generated catch block             e.printstacktrace();         }     }  }

}

severe: servlet.service() servlet addmovieservlet threw exception java.lang.nullpointerexception @ wimc.serv.addmovieservlet.process(addmovieservlet.java:52) @ wimc.serv.addmovieservlet.doget(addmovieservlet.java:42) @ javax.servlet.http.httpservlet.service(httpservlet.java:617) @ javax.servlet.http.httpservlet.service(httpservlet.java:717) @     org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:290) @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206) @ org.apache.catalina.core.standardwrappervalve.invoke(standardwrappervalve.java:233) @ org.apache.catalina.core.standardcontextvalve.invoke(standardcontextvalve.java:191) @ org.apache.catalina.core.standardhostvalve.invoke(standardhostvalve.java:127) @ org.apache.catalina.valves.errorreportvalve.invoke(errorreportvalve.java:102) @ org.apache.catalina.core.standardenginevalve.invoke(standardenginevalve.java:109) @ org.apache.catalina.connector.coyoteadapter.service(coyoteadapter.java:298) @ org.apache.coyote.http11.http11processor.process(http11processor.java:857) @    org.apache.coyote.http11.http11protocol$http11connectionhandler.process(http11protocol.java:588) @ org.apache.tomcat.util.net.jioendpoint$worker.run(jioendpoint.java:489) @ java.lang.thread.run(unknown source)

req.getparameter("reldate") returns null.


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