那些遇到过的问题

Primefaces扩展ajaxErrorHandler无法正常工作

SJu*_*n76 1 primefaces jsf-2 primefaces-extensions wildfly-8

在WildFly 8-1我primefaces-5.1.jar和primefaces-extensions-2.1.0.jar我的webapps WEB-INF/lib目录下.

我配置了WEB-INF/faces-config.xml:

<?xml version="1.0" encoding="UTF-8"?>
<faces-config
  xmlns="http://xmlns.jcp.org/xml/ns/javaee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd"
version="2.2">
  <application>
    <el-resolver>org.primefaces.application.exceptionhandler.PrimeExceptionHandlerELResolver</el-resolver>
  </application>

  <factory>
    <exception-handler-factory>org.primefaces.application.exceptionhandler.PrimeExceptionHandlerFactory</exception-handler-factory>
  </factory>
</faces-config>
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我有以下JSF.

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
  xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
  xmlns:h="http://xmlns.jcp.org/jsf/html"
  xmlns:f="http://xmlns.jcp.org/jsf/core"
  xmlns:p="http://primefaces.org/ui"
  xmlns:pe="http://primefaces.org/ui/extensions">
<h:head></h:head>
<h:body>
  <h:form id="form">
    <pe:ajaxErrorHandler body="ERROR"/>
    <p:commandButton actionListener="#{dossierResumen.excepcion}" value="Excepción"/>
  </h:form>
</h:body>
</html>
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这里DossierResumen#excepcion()是

public void excepcion() {
  throw new NullPointerException("EXCEPCION! EXCEPCION!");
}
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当我点击按钮时,我根本没有弹出窗口; 页面被重定向到定义的错误500的URL web.xml.在日志中,我得到以下堆栈跟踪墙:

我究竟做错了什么？

15:44:14,206 ERROR [stderr](默认任务-42)java.lang.NullPointerException:EXCEPCION!EXCEPCION!15:44:14,206 ERROR [stderr](默认任务-42)at es.imasmallorca.selene.webone.jsf.controller.dossier.DossierResumen.excepcion(DossierResumen.java:55)15:44:14,206 ERROR [stderr](默认任务-42)at es.imasmallorca.selene.webone.jsf.controller.dossier.DossierResumen $ Proxy $ _ $$ WeldClientProxy.excepcion(Unknown Source)15:44:14,206 ERROR [stderr](默认任务-42)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)15:44:14,206错误[stderr](默认任务-42)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)15:44:14,207 ERROR [stderr] (默认任务-42)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)15:44:14,207 ERROR [stderr](默认任务-42)在java.lang.reflect.Method.invoke(Method.java) :606)15:44:14,207错误[stderr](默认任务-42)at com.sun.el.parser.AstValue.invoke(AstValue.java:275)15:44:14,207 ERROR [stderr](默认任务 - 42)在com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)15:44:14,207 ERROR [stderr](默认任务-42)在org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)15:44:14,207 ERROR [stderr](默认任务-42)org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)15:44:14,208 org.jboss.weld.util.el上的ERROR [stderr](默认任务-42). ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)15:44:14,208 ERROR [stderr](默认任务-42)at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)15:44:14,208 ERROR [stderr](默认任务-42)javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:149)15:44:14,208 javax.faces.event.ActionEvent中的ERROR [stderr](默认任务-42). processListener(ActionEvent.java:88)15:44:14,208错误[stderr](默认任务-42)在javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:813)15:44:14,208 ERROR [stderr](默认任务-42)在javax.faces.com ponent.UICommand.broadcast(UICommand.java:300)15:44:14,209错误[stderr](默认任务-42)at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)15:44:14,209 ERROR [stderr](默认任务-42),位于com.sun.faces.lifecycle的javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)15:44:14,209 ERROR [stderr](默认任务-42). InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)15:44:14,209错误[stderr](默认任务-42)at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)15:44:14,209 ERROR [stderr](默认任务-42)at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)15:44:14,209错误[stderr](默认任务-42)在javax.faces.webapp. FacesServlet.service(FacesServlet.java:646)15:44:14,210 ERROR [stderr](默认任务-42)at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)15:44:14,210 ERROR [stderr](默认任务-42)在io.undertow.servlet.handlers.security.ServletSecurityRoleHand ler.handleRequest(ServletSecurityRoleHandler.java:61)15:44:14,210 ERROR [stderr](默认任务-42)在io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)15:44:14,210错误[stderr](默认任务-42)atg.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)15:44:14,210 ERROR [stderr](默认任务-42)在io.undertow. server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25)15:44:14,210 ERROR [stderr](默认任务-42)at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:113) 15:44:14,211 ERROR [stderr](默认任务-42)在io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56)15:44:14,211 ERROR [stderr](默认任务-42 )at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.j)ava:25)15:44:14,211 ERROR [stderr](默认任务-42)at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45)15:44:14,211 ERROR [stderr](默认任务-42)at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:61)15:44:14,211 ERROR [stderr](默认任务-42)位于io.undertow.security.handlers.AuthenticationMechanismsHandler. handleRequest(AuthenticationMechanismsHandler.java:58)15:44:14,212 ERROR [stderr](默认任务-42)在io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70)15:44:14,212错误[stderr](默认任务-42)位于io.undertow.server的io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)15:44:14,212 ERROR [stderr](默认任务-42). handlers.PredicateHandler.handleRequest(PredicateHandler.java:25)15:44:14,212 ERROR [stderr](默认任务-42)org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)15:44:14,212 ERROR [stderr](默认任务-42)at io .undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25)15:44:14,212 ERROR [stderr](默认任务-42)at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25 )15:44:14,213 ERROR [stderr](默认任务-42)at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:240)15:44:14,213 ERROR [stderr](默认任务-42) at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:227)15:44:14,213 ERROR [stderr](默认任务-42)位于io.undertow.servlet.handlers.ServletInitialHandler.access $ 000(ServletInitialHandler. java:73)15:44:14,213 ERROR [stderr](默认任务-42)在io.undertow.servlet.handlers.ServletInitialHandler $ 1.handleRequest(ServletInitialHandler.java:1 46)15:44:14,213 ERROR [stderr](默认任务-42)在io.undertow.server.Connectors.executeRootHandler(Connectors.java:177)15:44:14,213 ERROR [stderr](默认任务-42)at io.undertow.server.HttpServerExchange $ 1.run(HttpServerExchange.java:727)15:44:14,214 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)中的ERROR [stderr](默认任务-42)15 :44:14,214 ERROR [stderr](默认任务-42)在java.util.concurrent.ThreadPoolExecutor $ Worker.run(ThreadPoolExecutor.java:615)15:44:14,214错误[stderr](默认任务-42)在java .lang.Thread.run(Thread.java:745)15:44:14,214 SEVERE [org.primefaces.application.exceptionhandler.PrimeExceptionHandler](默认任务-42)EXCEPCION!EXCEPCION!:java.lang.NullPointerException:EXCEPCION!EXCEPCION!at es.imasmallorca.selene.webone.jsf.controller.dossier.DossierResumen.excepcion(DossierResumen.java:55)[classes:] at es.imasmallorca.selene.webone.jsf.controller.dossier.DossierResumen $ Proxy $ $$ _WeldClientProxy.excepcion(未知来源)[classes:] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[rt.jar:1.7.0_55] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)[rt. jar:1.7.0_55] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[rt.jar:1.7.0_55] at java.lang.reflect.Method.invoke(Method.java:606)[rt. jar:1.7.0_55] at com.sun.el.parser.AstValue.invoke(AstValue.java:275)[javax.el-3.0.0.jar:] at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl. java:304)[javax.el-3.0.0.jar:] at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)[weld-core-impl-2.1.2.Final. jar:2014-01-09 09:23] org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java :50)[焊接-core-impl-2.1.2.Final.jar:2014-01-09 09:23] org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)[焊接] -core-impl-2.1.2.Final.jar:2014-01-09 09:23]在org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)[weld-core-impl-2.1. 2.Final.jar:2014-01-09 09:23]在javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:149)[jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6 ] javax.faces.event.ActionEvent.processListener(ActionEvent.java:88)[jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6] at javax.faces.component.UIComponentBase.broadcast(UIComponentBase. java:813)[jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]在javax.faces.component.UICommand.broadcast(UICommand.java:300)[jboss-jsf-api_2.2_spec-2.2 .jar:2.2.6]在javax.faces的javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)[jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]. component.UIViewRoot.processApplication(UIViewRoot.java:12 82)[jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6] at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)[jsf-impl-2.2.6-jbossorg -4.jar:] com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)[jsf-impl-2.2.6-jbossorg-4.jar:] at com.sun.faces.lifecycle. LifecycleImpl.execute(LifecycleImpl.java:198)[jsf-impl-2.2.6-jbossorg-4.jar:] at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)[jboss-jsf-api_2. 2_spec-2.2.6.jar:2.2.6] at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)[undertow-servlet-1.0.15.Final.jar:1.0.15.Final] at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61)[undertow-servlet-1.0.15.Final.jar:1.0.15.Final] at io.undertow.servlet.handlers.ServletDispatchingHandler .handleRequest(ServletDispatchingHandler.java:36)[underow-servlet-1.0.15.Final.jar:1.0.15.Final] org.wildfly.extension.undertow.security.SecurityContextAssociationHan do.handleRequest(SecurityContextAssociationHandler.java:78)at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25)[undertow-core-1.0.15.Final.jar:1.0.15.Final] at io .undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:113)[undertow-servlet-1.0.15.Final.jar:1.0.15.Final] at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler .handleRequest(ServletAuthenticationCallHandler.java:56)[undertow-servlet-1.0.15.Final.jar:1.0.15.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25)[下载 - core-1.0.15.Final.jar:1.0.15.Final] at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45)[undertow-core-1.0.15.Final.jar:1.0. 15.Final] at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:61)[un dertow-servlet-1.0.15.Final.jar:1.0.15.Final] at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58)[undertow-core-1.0.15.Final.jar:在io.undertow的io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70)[undertow-servlet-1.0.15.Final.jar:1.0.15.Final]的1.0.15.Final] io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java)中的.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)[undertow-core-1.0.15.Final.jar:1.0.15.Final] :25)在io.undertow的org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)上的[undertow-core-1.0.15.Final.jar:1.0.15.Final]. server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25)[undertow-core-1.0.15.Final.jar:1.0.15.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler).java:25)[underow-core-1.0.15.Final.jar:1.0.15.Final] at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:240)[undertow-servlet-1.0. 15.Final.jar:1.0.15.Final] at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:227)[undertow-servlet-1.0.15.Final.jar:1.0.15.Final] at io.undertow.servlet.handlers.ServletInitialHandler.access $ 000(ServletInitialHandler.java:73)[undertow-servlet-1.0.15.Final.jar:1.0.15.Final] at io.undertow.servlet.handlers.ServletInitialHandler $ 1 .handleRequest(ServletInitialHandler.java:146)[undertow-servlet-1.0.15.Final.jar:1.0.15.Final] at io.undertow.server.Connectors.executeRootHandler(Connectors.java:177)[underow-core- 1.0.15.Final.jar:1.0.15.Final] at io.undertow.server.HttpServerExchange $ 1.run(HttpServerExchange.java:727)[undertow-core-1.0.15.Final.jar:1.0.15.Final ]在java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)[rt.jar:1.7.0_55] a t java.util.concurrent.ThreadPoolExecutor $ Worker.run(ThreadPoolExecutor.java:615)[rt.jar:1.7.0_55] at java.lang.Thread.run(Thread.java:745)[rt.jar:1.7. 0_55]

更新:

在Guaido79的要求下,我的web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
  <display-name>seleneWar</display-name>
  <welcome-file-list>
    <welcome-file>index.xhtml</welcome-file>
  </welcome-file-list>
  <servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.xhtml</url-pattern>
  </servlet-mapping>

  <error-page>
    <error-code>500</error-code>
    <location>/error/500.xhtml</location>
  </error-page>

  <context-param>
    <param-name>javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL</param-name>
    <param-value>true</param-value>
  </context-param>

  <context-param>
    <param-name>primefaces.CLIENT_SIDE_VALIDATION</param-name>
    <param-value>true</param-value>
  </context-param>

  <resource-ref>
    <res-ref-name>jsf/ProjectStage</res-ref-name>
    <res-type>java.lang.String</res-type>
  </resource-ref>

</web-app>
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mrg*_*ser 5

该组件有两种模式:简单模式和扩展模式.

在简单模式下,您无需在您的任何内容中指定任何内容faces-config.xml.所以你可以删除这些行:

<application>
    <el-resolver>org.primefaces.application.exceptionhandler.PrimeExceptionHandlerELResolver</el-resolver>
</application>

<factory>
    <exception-handler-factory>org.primefaces.application.exceptionhandler.PrimeExceptionHandlerFactory</exception-handler-factory>
</factory>
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或删除整个faces-config.xml文件,因为它是你在那里唯一的东西.然后,您可以测试简单模式,该模式工作正常,无需在web.xml中定义任何其他内容.这可能足以满足您的需求.

从错误跟踪看来,在扩展模式下(使用该faces-config.xml配置),组件需要在您的中定义错误页面web.xml.您不希望重定向到错误页面,因此如果您将以下代码添加到您web.xml的示例中,但不能满足您的需求:

<error-page>
   <exception-type>java.lang.Throwable</exception-type>
   <location>/error/500.xhtml</location>
</error-page>
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无论如何,强烈建议使用本p:ajaxExceptionHandler机组件,因为看起来PrimeFaces Extensions的作者可能会在将来删除该组件,因为它已经不再需要(链接)已经删除了3.2.0版本中的组件.(链接)

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