java.lang.illegalstateException في com.sun.faces.context.facescontextImpl.Assertnotreledes
https://stackoverflow.com/questions/4605118
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login.xhtml
<h:form>
<p:panel header="Login">
<p:messages id="msgs" showDetail="true"/>
<h:panelGrid columns="2" columnClasses="column" cellpadding="5">
<h:outputLabel for="user" value="Username" />
<h:inputText id="user" value="#{login.username}" />
<h:outputLabel for="pw" value="Passwort" />
<h:inputSecret id="pw" redisplay="false" value="#{login.password}" />
</h:panelGrid>
<p:commandButton value="Anmelden" action="#{login.login}" type="submit" update="msgs" />
</p:panel>
</h:form>
Login.java
@ManagedBean
@ViewScoped
public class Login {
private FacesContext fCtx;
private String username;
private String password;
public Login() {
fCtx = FacesContext.getCurrentInstance();
}
public String login(){
// HttpSession session = (HttpSession) fCtx.getExternalContext().getSession(true);
// String sessionId = session.getId();
fCtx.addMessage(null, new FacesMessage(FacesMessage.SEVERITY_INFO,"Info: ", getUsername()+", "+getPassword()+", "));
return "start.xhtml";
}
public void setUsername(String username) {
this.username = username;
}
public String getUsername() {
return username;
}
public void setPassword(String password) {
this.password = password;
}
public String getPassword() {
return password;
}
}
Error Stack Trace
05.01.2011 15:24:00 com.sun.faces.application.ActionListenerImpl processAction
SCHWERWIEGEND: java.lang.IllegalStateException
javax.faces.el.EvaluationException: java.lang.IllegalStateException
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:98)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:98)
at javax.faces.component.UICommand.broadcast(UICommand.java:311)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:781)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1246)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:308)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:306)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:108)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:558)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:379)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:259)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:281)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.IllegalStateException
at com.sun.faces.context.FacesContextImpl.assertNotReleased(FacesContextImpl.java:635)
at com.sun.faces.context.FacesContextImpl.addMessage(FacesContextImpl.java:471)
at org.dhbw.stg.wwi2008c.mopro.ui.managedBeans.Login.login(Login.java:24)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.el.parser.AstValue.invoke(AstValue.java:262)
at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:102)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:84)
... 23 more
05.01.2011 15:24:00 com.sun.faces.lifecycle.InvokeApplicationPhase execute
WARNUNG: #{login.login}: java.lang.IllegalStateException
javax.faces.FacesException: #{login.login}: java.lang.IllegalStateException
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:114)
at javax.faces.component.UICommand.broadcast(UICommand.java:311)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:781)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1246)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:308)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:306)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:108)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:558)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:379)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:259)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:281)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: javax.faces.el.EvaluationException: java.lang.IllegalStateException
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:98)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:98)
... 22 more
Caused by: java.lang.IllegalStateException
at com.sun.faces.context.FacesContextImpl.assertNotReleased(FacesContextImpl.java:635)
at com.sun.faces.context.FacesContextImpl.addMessage(FacesContextImpl.java:471)
at org.dhbw.stg.wwi2008c.mopro.ui.managedBeans.Login.login(Login.java:24)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.el.parser.AstValue.invoke(AstValue.java:262)
at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:102)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:84)
... 23 more
javax.faces.FacesException: #{login.login}: java.lang.IllegalStateException
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:85)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:308)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:306)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:108)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:558)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:379)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:259)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:281)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: javax.faces.FacesException: #{login.login}: java.lang.IllegalStateException
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:114)
at javax.faces.component.UICommand.broadcast(UICommand.java:311)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:781)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1246)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
... 18 more
Caused by: javax.faces.el.EvaluationException: java.lang.IllegalStateException
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:98)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:98)
... 22 more
Caused by: java.lang.IllegalStateException
at com.sun.faces.context.FacesContextImpl.assertNotReleased(FacesContextImpl.java:635)
at com.sun.faces.context.FacesContextImpl.addMessage(FacesContextImpl.java:471)
at org.dhbw.stg.wwi2008c.mopro.ui.managedBeans.Login.login(Login.java:24)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.el.parser.AstValue.invoke(AstValue.java:262)
at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:102)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:84)
... 23 more
ما هي المشكلة كيف يمكنني إصلاحها؟
المحلول
خطأك هنا:
@ManagedBean
@ViewScoped
public class Login {
private FacesContext fCtx;
public Login() {
fCtx = FacesContext.getCurrentInstance();
}
}
يجب مطلقا تعيين FacesContext كمتغير مثيل لعرض/جلسة/تطبيق Scoped Managed Bean وإعادة استخدامه في طلبات مختلفة ، لأن المثيل الحالي لـ FacesContext يرتبط بالطلب الحالي الذي يجعله طلبًا بطبيعته (ولكن من الأفضل أيضًا عدم ذلك في طلب الفاصوليا المنتشر بسبب الأسلوب الضعيف الذي قد يكون مربكًا للمبتدئين).
ال FacesContext يتم إصدار مثيل حسب نهاية الطلب. في الطلبات اللاحقة ، لم يعد المثال الذي تم الحصول عليه في طلب سابق صالحًا. إذا كان من شأنه أن ينجح ، فعندئذ جميع أساليب getter ExternalContext كان من شأنه أن يعيد لك الخصائص (المعلمات ، ملفات تعريف الارتباط ، الرؤوس ، إلخ) لطلب HTTP السابق وجميع أساليب Setter التي تُعتزم على استجابة HTTP السابقة التي كانت ملتزمة بالفعل لفترة طويلة. كل هذا ليس صحيحًا.
يجب عليك دائمًا الحصول عليها على أساس كل موضوع محلي (أي مباشرة داخل كتلة الطريقة). في حالتك المحددة ، فقط الحصول عليها مباشرة داخل login() طريقة:
public String login() {
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_INFO, "Info: ", getUsername() + ", " + getPassword() + ", "));
return "start.xhtml";
}
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