我的 WebApp 抛出异常，我不知道为什么。当我按下 primefaces dataexporter 按钮时会发生错误。
我正在使用NetBeans 7.4、Mojarra 2.1.27、PrimeFaces 3.5
我还包括了包含 RichTextString.class 的 apache poi-3.9（也尝试过 3.7），那么为什么应用程序在运行时找不到它呢？有任何想法吗？
如果缺少某些信息，请告诉我。
堆栈跟踪：
警告：StandardWrapperValve [Faces Servlet]：PWC1406：Servlet Faces Servlet 的 Servlet.service() 在 java.net.URLClassLoader$1.run(URLClassLoader. java:366) 在 java.net.URLClassLoader$1.run(URLClassLoader.java:355) 在 java.security.AccessController.doPrivileged(Native Method) 在 java.net.URLClassLoader.findClass(URLClassLoader.java:354) 在 java. lang.ClassLoader.loadClass(ClassLoader.java:425) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at org.primefaces.component.export.ExporterFactory.getExporterForType(ExporterFactory.java:30) at org.primefaces .component.export.DataExporter.processAction(DataExporter.java:87) 在 javax.faces.event.ActionEvent.processListener(ActionEvent.java:88) 在 javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:769) 在 javax.faces.component.UICommand.broadcast(UICommand.java:300) 在 javax.faces.component.UIData.broadcast(UIData.java) :1093) 在 javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794) 在 javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259) 在 com.sun.faces.lifecycle.InvokeApplicationPhase.execute( InvokeApplicationPhase.java:81) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) at javax.faces.webapp .FacesServlet.service(FacesServlet.java:593) 在 org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550) 在 org.apache.catalina.core.StandardWrapperValve。在 org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655) 在 org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 在 org.apache 调用(StandardWrapperValve.java:281) .catalina.core.StandardPipeline.invoke(StandardPipeline.java:595) 在 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161) 在 org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java :331) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231) at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317) at com。 sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195) 在 com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860) 在 com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757) 在 com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056) 在 com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter. java:229) 在 com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) 在 com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) 在 com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain .java:90) 在 com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) 在 com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) 在 com.sun.grizzly.SelectionKeyContextTask。在 com.sun.grizzly.ContextTask.run(ContextTask.java:71) 在 com.sun.grizzly.util 调用 (SelectionKeyContextTask.java:59)。AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) at java.lang.Thread.run(Thread.java:744)
项目.xml
<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://www.netbeans.org/ns/project/1">
<type>org.netbeans.modules.web.project</type>
-<configuration>
-<data xmlns="http://www.netbeans.org/ns/web-project/3">
<name>RDBS</name>
<minimum-ant-version>1.6.5</minimum-ant-version>
-<web-module-libraries>
-<library dirs="200">
<file>${file.reference.commons-fileupload-1.3.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.commons-io-2.4.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.jaxen-1.1.6.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.poi-ooxml-3.9.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.poi-ooxml-schemas-3.9.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.primefaces-extensions-0.7.0-20130409.040543-51.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.xdb6.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.xmlparserv2.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.dynamicreports-adhoc-3.1.4.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.dynamicreports-core-3.1.4.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.avalon-framework-impl-4.2.0.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.barbecue-1.5-beta1.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.barcode4j-2.0.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.batik-anim-1.7.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.batik-awt-util-1.7.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.batik-bridge-1.7.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.batik-css-1.7.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.batik-dom-1.7.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.batik-ext-1.7.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.batik-gvt-1.7.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.batik-parser-1.7.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.batik-script-1.7.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.batik-svg-dom-1.7.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.batik-util-1.7.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.batik-xml-1.7.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.bcprov-jdk14-138.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.commons-beanutils-1.8.0.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.commons-collections-3.2.1.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.commons-digester-2.1.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.commons-lang-2.5.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.commons-lang3-3.1.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.commons-logging-1.1.1.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.hsqldb-1.8.0.10.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.itext-2.1.7.js2.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.jackson-annotations-2.0.5.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.jackson-core-2.0.5.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.jackson-databind-2.0.5.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.jasperreports-5.0.4.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.jcommon-1.0.15.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.jdtcore-3.1.0.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.jfreechart-1.0.12.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.json-20080701.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.jxl-2.6.10.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.log4j-1.2.14.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.serializer-2.7.1.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.spring-beans-2.5.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.spring-core-2.5.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.velocity-1.7.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.xalan-2.7.1.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.xml-apis-1.3.04.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.xml-apis-ext-1.3.04.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.xbean.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.dom4j-1.6.1.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.primefaces-3.5.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
-<library dirs="200">
<file>${file.reference.poi-3.9.jar}</file>
<path-in-war>WEB-INF/lib</path-in-war>
</library>
</web-module-libraries>
<web-module-additional-libraries/>
-<source-roots>
<root id="src.dir"/>
</source-roots>
-<test-roots>
<root id="test.src.dir"/>
</test-roots>
</data>
</configuration>
</project>