Hallo Community,
Ich programmiere zurzeit ein Projekt mit Hibernate und GWT.
Ich komme zurzeit einfach nicht weiter ich bekomme andauernd den Fehler "Uncaught exception escaped"
Hier die Fehler Log:
21:52:12.029 [ERROR] [gui] Uncaught exception escaped
java.lang.NullPointerException: null
at ourProject.client.common.LoginUI$2.onClick(LoginUI.java:96)
at com.google.gwt.event.dom.client.ClickEvent.dispatch(ClickEvent.java:54)
at com.google.gwt.event.dom.client.ClickEvent.dispatch(ClickEvent.java:1)
at com.google.gwt.event.shared.HandlerManager$HandlerRegistry.fireEvent(HandlerManager.java:65)
at com.google.gwt.event.shared.HandlerManager$HandlerRegistry.access$1(HandlerManager.java:53)
at com.google.gwt.event.shared.HandlerManager.fireEvent(HandlerManager.java:178)
at com.google.gwt.user.client.ui.Widget.fireEvent(Widget.java:52)
at com.google.gwt.event.dom.client.DomEvent.fireNativeEvent(DomEvent.java:116)
at com.google.gwt.user.client.ui.Widget.onBrowserEvent(Widget.java:100)
at com.google.gwt.user.client.DOM.dispatchEventImpl(DOM.java:1307)
at com.google.gwt.user.client.DOM.dispatchEvent(DOM.java:1263)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
at com.google.gwt.dev.shell.BrowserChannel.reactToMessagesWhileWaitingForReturn(BrowserChannel.java:1714)
at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:165)
at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:120)
at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:507)
at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:264)
at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
at com.google.gwt.core.client.impl.Impl.apply(Impl.java)
at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:188)
at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
at com.google.gwt.dev.shell.BrowserChannel.reactToMessages(BrowserChannel.java:1669)
at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:401)
at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:222)
at java.lang.Thread.run(Unknown Source)
Hier der Aufruf des RPC's
In diesen Klasse hab ich die Methode Implementiert:
UserAdminImpl:
Und das ist das sind die beiden Interface die noch benötigt werden:
Hat irgendwer ne Idee wo das Problem liegt?
greetz
compi
PS.: Ich glaub ich bin im Falschen teil des Forums kann das vielleicht nen Mod verschieben?
Ich programmiere zurzeit ein Projekt mit Hibernate und GWT.
Ich komme zurzeit einfach nicht weiter ich bekomme andauernd den Fehler "Uncaught exception escaped"
Hier die Fehler Log:
21:52:12.029 [ERROR] [gui] Uncaught exception escaped
java.lang.NullPointerException: null
at ourProject.client.common.LoginUI$2.onClick(LoginUI.java:96)
at com.google.gwt.event.dom.client.ClickEvent.dispatch(ClickEvent.java:54)
at com.google.gwt.event.dom.client.ClickEvent.dispatch(ClickEvent.java:1)
at com.google.gwt.event.shared.HandlerManager$HandlerRegistry.fireEvent(HandlerManager.java:65)
at com.google.gwt.event.shared.HandlerManager$HandlerRegistry.access$1(HandlerManager.java:53)
at com.google.gwt.event.shared.HandlerManager.fireEvent(HandlerManager.java:178)
at com.google.gwt.user.client.ui.Widget.fireEvent(Widget.java:52)
at com.google.gwt.event.dom.client.DomEvent.fireNativeEvent(DomEvent.java:116)
at com.google.gwt.user.client.ui.Widget.onBrowserEvent(Widget.java:100)
at com.google.gwt.user.client.DOM.dispatchEventImpl(DOM.java:1307)
at com.google.gwt.user.client.DOM.dispatchEvent(DOM.java:1263)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
at com.google.gwt.dev.shell.BrowserChannel.reactToMessagesWhileWaitingForReturn(BrowserChannel.java:1714)
at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:165)
at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:120)
at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:507)
at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:264)
at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
at com.google.gwt.core.client.impl.Impl.apply(Impl.java)
at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:188)
at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
at com.google.gwt.dev.shell.BrowserChannel.reactToMessages(BrowserChannel.java:1669)
at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:401)
at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:222)
at java.lang.Thread.run(Unknown Source)
Hier der Aufruf des RPC's
Java:
callback = new AsyncCallback() {
@Override
public void onFailure(Throwable caught) {
GWT.log(caught.toString());
}
@Override
public void onSuccess(Object result) {
GWT.log("Works fine!");
}
};
// In diesem Button werden die RPC Methoden genutzt
this.btLogin.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
txtUser.setText(useradmin.PruefungLogin("compi", "hallo").toString());
}
});
In diesen Klasse hab ich die Methode Implementiert:
UserAdminImpl:
Java:
package ourProject.server.RPCUser;
import org.hibernate.Session;
import org.hibernate.criterion.Restrictions;
import ourProject.client.User.UserAdmin;
import ourProject.server.HibernateUtil;
import ourProject.server.useradmin.User;
import com.google.gwt.core.client.GWT;
import com.google.gwt.user.server.rpc.RemoteServiceServlet;
public class UserAdminImpl extends RemoteServiceServlet implements UserAdmin {
@Override
public Integer PruefungLogin(String Name, String Passwort) {
Session session = HibernateUtil.getFactory().getCurrentSession();
Name.toLowerCase();
User user = (User) session.createCriteria(User.class)
.add(Restrictions.naturalId()
.set("Nick", Name)
).uniqueResult();
System.out.printf(user.getMailaddy(),user.getNick(),user.getPassword());
if (user.getPassword() == Passwort) {
session.close();
GWT.log(Integer.toString(user.getUserId()));
return user.getUserId();
} else if (user.getPassword() == null) {
GWT.log("das ergebnis ist null");
session.close();
return 10;
}
else {
session.close();
return 10;
}
}
Und das ist das sind die beiden Interface die noch benötigt werden:
Java:
package ourProject.client.User;
import com.google.gwt.user.client.rpc.RemoteService;
public interface UserAdmin extends RemoteService {
Integer PruefungLogin(String Name, String Passwort);
}
Java:
package ourProject.client.User;
import com.google.gwt.user.client.rpc.AsyncCallback;
public interface UserAdminAsync {
public void PruefungLogin(String Name, String Passwort, AsyncCallback<Integer> callback);
}
Hat irgendwer ne Idee wo das Problem liegt?
greetz
compi
PS.: Ich glaub ich bin im Falschen teil des Forums kann das vielleicht nen Mod verschieben?
Zuletzt bearbeitet: