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的NullPointerException异常

2013-03-01 226 views
1

我得到的NullPointerException当我点击commonButton提交页面：的NullPointerException异常

SEVERE: javax.servlet.ServletException 
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:606) 
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217) 
at ca.bc.gov.hlth.template.filter.ProcessFilter.doFilter(ProcessFilter.java:125) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655) 
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161) 
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231) 
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317) 
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195) 
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860) 
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757) 
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056) 
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229) 
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) 
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) 
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90) 
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) 
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) 
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59) 
at com.sun.grizzly.ContextTask.run(ContextTask.java:71) 
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) 
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) 
at java.lang.Thread.run(Thread.java:662) 
Caused by: java.lang.NullPointerException 
at javax.faces.component.UIComponentBase.getRenderer(UIComponentBase.java:1402) 
at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:785) 
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1181) 
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1176) 
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1176) 
at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:933) 
at com.sun.faces.extensions.avatar.components.PartialTraversalViewRootImpl.processDecodes(PartialTraversalViewRootImpl.java:147) 
at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78) 
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) 
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) 
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) 
... 29 more

的web.xml：

<?xml version="1.0" encoding="UTF-8"?> 
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"> 
    <display-name>SSD</display-name> 
    <context-param> 
     <param-name>org.richfaces.skin</param-name> 
     <param-value>CUSTOM</param-value> 
    </context-param> 
    <context-param> 
    <param-name>org.richfaces.enableControlSkinning</param-name> 
    <param-value>true</param-value> 
    </context-param> 
    <context-param> 
     <param-name>org.richfaces.push.jms.enabled</param-name> 
     <param-value>true</param-value> 
    </context-param> 
    <context-param> 
     <param-name>javax.faces.STATE_SAVING_METHOD</param-name> 
     <param-value>client</param-value> 
    </context-param> 
    <context-param> 
     <param-name>com.sun.faces.validateXml</param-name> 
     <param-value>false</param-value> 
    </context-param> 
    <context-param> 
     <param-name>com.sun.faces.verifyObjects</param-name> 
     <param-value>false</param-value> 
    </context-param> 
    <context-param> 
     <param-name>com.sun.faces.expressionFactory</param-name> 
     <param-value>com.sun.el.ExpressionFactoryImpl</param-value> 
    </context-param> 
    <servlet> 
     <servlet-name>ExceptionHandlerServlet</servlet-name> 
     <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> 
     <init-param> 
      <param-name>errorHost</param-name> 
      <param-value>localhost</param-value> 
     </init-param> 
     <init-param> 
      <param-name>errorPort</param-name> 
      <param-value>24444</param-value> 
     </init-param> 
    </servlet> 
    <servlet> 
     <servlet-name>JsonSearch</servlet-name> 
     <servlet-class>ca.bc.gov.hlth.swt.map.JsonSearchServlet</servlet-class> 
    </servlet> 
    <servlet-mapping> 
     <servlet-name>JsonSearch</servlet-name> 
     <url-pattern>*.json</url-pattern> 
    </servlet-mapping> 
    <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>/faces/*</url-pattern> 
    </servlet-mapping> 
    <filter> 
     <filter-name>ProcessFilter</filter-name> 
     <filter-class>ca.bc.gov.hlth.template.filter.ProcessFilter</filter-class> 
     <init-param> 
      <param-name>error-page</param-name> 
      <param-value>/faces/Error.xhtml</param-value> 
     </init-param> 
    </filter> 
    <filter-mapping> 
     <filter-name>ProcessFilter</filter-name> 
     <servlet-name>Faces Servlet</servlet-name> 
     <dispatcher>REQUEST</dispatcher> 
    </filter-mapping> 
    <listener> 
     <listener-class>com.sun.faces.config.ConfigureListener</listener-class> 
    </listener> 
    <listener> 
     <listener-class>ca.bc.gov.hlth.swt.util.StartupListener</listener-class> 
    </listener> 
    <session-config> 
     <session-timeout> 
      30 
     </session-timeout> 
    </session-config> 
    <welcome-file-list> 
     <welcome-file>faces/Home.xhtml</welcome-file> 
    </welcome-file-list> 
    <error-page> 
     <error-code>403</error-code> 
     <location>/faces/AccessDenied.xhtml</location> 
    </error-page> 
    <error-page> 
     <error-code>500</error-code> 
     <location>/faces/Error.xhtml</location> 
    </error-page> 
    <jsp-config> 
     <jsp-property-group> 
      <url-pattern>*.jspf</url-pattern> 
     </jsp-property-group> 
    </jsp-config> 
</web-app>

这是我的脸，配置.xml：

<?xml version='1.0' encoding='UTF-8'?> 

<!-- =========== FULL CONFIGURATION FILE ================================== --> 

<faces-config version="2.1" 
    xmlns="http://java.sun.com/xml/ns/javaee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_2_1.xsd"> 
    <faces-config-extension> 
    <facelets-processing> 
     <file-extension>.jspx</file-extension> 
     <process-as>jspx</process-as> 
    </facelets-processing> 
    </faces-config-extension> 

    <managed-bean> 
     <managed-bean-name>Map</managed-bean-name> 
     <managed-bean-class>swtwar.Map</managed-bean-class> 
     <managed-bean-scope>session</managed-bean-scope> 
    </managed-bean> 
    <managed-bean> 
     <managed-bean-name>Search</managed-bean-name> 
     <managed-bean-class>swtwar.Search</managed-bean-class> 
     <managed-bean-scope>session</managed-bean-scope> 
    </managed-bean> 
    <managed-bean> 
     <managed-bean-name>Home</managed-bean-name> 
     <managed-bean-class>swtwar.Home</managed-bean-class> 
     <managed-bean-scope>session</managed-bean-scope> 
    </managed-bean> 
    <managed-bean> 
     <managed-bean-name>LayoutWide</managed-bean-name> 
     <managed-bean-class>swtwar.LayoutWide</managed-bean-class> 
     <managed-bean-scope>session</managed-bean-scope> 
    </managed-bean> 
    <managed-bean> 
     <managed-bean-name>Tester</managed-bean-name> 
     <managed-bean-class>swtwar.Tester</managed-bean-class> 
     <managed-bean-scope>session</managed-bean-scope> 
    </managed-bean> 
    <navigation-rule>

这是我用于CommondButton的代码; ＃{Home.search}返回'搜索'： view plaincopy to clipboardprint？ 注意：在码块文本内容是自动字包裹

<h:commandButton onclick="document.getElementById('form1:procedureFilter').value='';" action="#{Home.search}" value="Select Search Criteria" />

两个Home.xhtml和Search.xhtml（home.xhtml - > Search.xhtml）是在相同的文件夹中。 我还发现glassfish 3.1给出以下错误： view plaincopy to clipboardprint？ 注：在代码块文本内容自动为自动换行

SEVERE: Application was not properly initialized at startup, could not find Factory: javax.faces.application.ApplicationFactory. Attempting to find backup.

任何帮助吗？

感谢

Harbinder

更新：经过一番工作，围绕我发现，我实际上从ManagedBean得到NullPointerException异常：

WARNING: #{Home.search}: java.lang.NullPointerException 
javax.faces.FacesException: #{Home.search}: java.lang.NullPointerException 
    at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118) 
    at javax.faces.component.UICommand.broadcast(UICommand.java:315) 
    at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794) 
    at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259) 
    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) 
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) 
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) 
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217) 
    at ca.bc.gov.hlth.template.filter.ProcessFilter.doFilter(ProcessFilter.java:125) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655) 
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161) 
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231) 
    at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317) 
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195) 
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860) 
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757) 
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056) 
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229) 
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) 
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) 
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90) 
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) 
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) 
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59) 
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71) 
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) 
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) 
    at java.lang.Thread.run(Thread.java:662) 
Caused by: javax.faces.el.EvaluationException: java.lang.NullPointerException 
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102) 
    at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) 
    ... 36 more 
Caused by: java.lang.NullPointerException 
    at swtwar.Home.search(Home.java:87) 
    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 com.sun.el.parser.AstValue.invoke(AstValue.java:254) 
    at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:302) 
    at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) 
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) 
    ... 37 more 

INFO: HP_excptn:javax.servlet.ServletException: java.lang.NullPointerException: java.lang.NullPointerException 
SEVERE: javax.servlet.ServletException: java.lang.NullPointerException 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:606) 
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217) 
    at ca.bc.gov.hlth.template.filter.ProcessFilter.doFilter(ProcessFilter.java:125) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655) 
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161) 
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231) 
    at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317) 
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195) 
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860) 
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757) 
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056) 
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229) 
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) 
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) 
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90) 
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) 
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) 
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59) 
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71) 
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) 
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) 
    at java.lang.Thread.run(Thread.java:662) 
Caused by: javax.faces.el.EvaluationException: java.lang.NullPointerException 
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102) 
    at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) 
    at javax.faces.component.UICommand.broadcast(UICommand.java:315) 
    at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794) 
    at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259) 
    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) 
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) 
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) 
    ... 29 more 
Caused by: java.lang.NullPointerException 
    at swtwar.Home.search(Home.java:87) 
    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 com.sun.el.parser.AstValue.invoke(AstValue.java:254) 
    at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:302) 
    at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) 
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) 
    ... 37 more

这里Home.Search指向：

@ManagedProperty(value = "#{Search}") 
private Search search; 
@ManagedProperty(value = "#{Tester}") 
private Tester tester; 

public Home() { 
} 

public Search getSearch(){ 
    return this.search; 
} 

public void setSearch(Search search){ 
    this.search = search; 
} 
public String search() { 
    if (siteId == null) { 
     init(); 
    } 

    tester.testing(); 
    return "tester"; 
}

而测试者指向Tester.xhtml和tes婷（）是它的bean类的测试程序：

@ManagedBean 
    public class Tester implements Serializable 
    { 
    public Tester(){ 
    } 

    @PostConstruct 
    public void testing(){ 
    System.out.println("HP_Tester_Testing....."); 
    } 
    }

来源

2013-03-01 Harbinder

+0

我会把一个断点ca.bc .gov.hlth.template.filter.ProcessFilter.doFilter（ProcessFilter.java:125）并查看正在发生的事情... – 2013-03-01 16:51:47

+0

根据您的浏览器打开检查员或萤火虫。实际上是你在客户端使用'form1：procedureFilter' id引用的过滤器吗？也许你正在引用一个不存在的id。 – 2013-03-01 17:51:46

+0

@ XtremeBiker ..我不认为JavaScript中的'id'不匹配会导致空指针！ – SRy 2013-03-01 23:12:39

回答

0

对于我的情况下（TomEE加1.7.2，JSF 2.2，MyFaces的2.1.17和Eclipse月神）F：阿贾克斯需要一个渲染工具包来完成清爽的相关部分。

我有这个错误在我的堆栈跟踪：

java.lang.NullPointerException 
javax.faces.component.UIComponentBase.getRenderer(UIComponentBase.java:1304) 
...

类似于你

Caused by: java.lang.NullPointerException 
at javax.faces.component.UIComponentBase.getRenderer(UIComponentBase.java:1402) 
...

我加渲染的面孔配置套件申报并添加相关的库添加到项目解决了这个问题。当然，对于其他实现，这些库可能会有所不同。

<application> 
<default-render-kit-id>org.apache.myfaces.trinidad.core</default-render-kit-id> 
</application>

特立尼达库：

千里API-2.0.1.jar

千里IMPL-2.0.1.jar

来源

2015-08-24 10:23:34

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