使用Tomahawk将数据导出为PDF格式？

在我的应用程序中，我试图使用Apache TomaHawk将数据从<h:DataTable>导出为PDF文件。加载页面时，我收到一个异常。我已经粘贴了我的代码和下面的例外。使用Tomahawk将数据导出为PDF格式？

JSF代码

<%@ page session="false" contentType="text/html;charset=utf-8"%> 
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%> 
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%> 
<%@ taglib uri="http://myfaces.apache.org/tomahawk" prefix="t"%> 
<%@ taglib uri="http://myfaces.apache.org/sandbox" prefix="s"%> 
<f:view> 
<html> 
    <body> 
     <h:form> 
      <p> 
       This component allows to export the datatable contents to an excel 
       or pdf file. 
      </p> 

      <br> 
      <t:dataTable id="tbl_cars" var="car" value="#{exBean.list}" 
       preserveDataModel="false"> 
       <t:column> 
        <f:facet name="header"> 
         <h:outputText value="Id" /> 
        </f:facet> 
        <h:outputText value="#{car.id}" /> 
       </t:column> 

       <t:column> 
        <f:facet name="header"> 
         <h:outputText value="Type" /> 
        </f:facet> 
        <h:outputText value="#{car.type}" /> 
       </t:column> 

       <t:column> 
        <f:facet name="header"> 
         <h:outputText value="Color" /> 
        </f:facet> 
        <h:outputText value="#{car.color}" /> 
       </t:column> 

      </t:dataTable> 
      <h:commandButton action="" value="Export as excel"> 
       <s:exporterActionListener for="tbl_cars" fileType="XLS" /> 
      </h:commandButton> 

      <br> 

      <h:commandButton action="" value="Export as pdf"> 
       <s:exporterActionListener for="tbl_cars" fileType="PDF" /> 
      </h:commandButton> 


     </h:form> 

    </body> 

</html> 
    </f:view>

异常

java.lang.NoClassDefFoundError: Could not initialize class org.apache.myfaces.shared_tomahawk.config.MyfacesConfig 
at org.apache.myfaces.renderkit.html.util.ExtensionsPhaseListener.writeCodeBeforeBodyEnd(ExtensionsPhaseListener.java:130) 
at org.apache.myfaces.renderkit.html.util.ExtensionsPhaseListener.getCodeBeforeBodyEnd(ExtensionsPhaseListener.java:104) 
at org.apache.myfaces.renderkit.html.util.ExtensionsPhaseListener.getJavaScriptCodeAndStoreInRequest(ExtensionsPhaseListener.java:94) 
at org.apache.myfaces.renderkit.html.util.ExtensionsPhaseListener.afterPhase(ExtensionsPhaseListener.java:70) 
at org.apache.myfaces.lifecycle.PhaseListenerManager.informPhaseListenersAfter(PhaseListenerManager.java:92) 
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:142) 
at org.apache.myfaces.custom.ppr.PPRLifecycleWrapper.render(PPRLifecycleWrapper.java:84) 
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:182) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178) 
at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290) 
at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:388) 
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) 
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849) 
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) 
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454) 
at java.lang.Thread.run(Thread.java:619)

来源

2010-02-23 Hariharbalaji

java.lang.NoClassDefFoundError: Could not initialize class 
    org.apache.myfaces.shared_tomahawk.config.MyfacesConfig

无论是类路径是脏（复制其获得每个OTH相撞不同版本的JAR文件呃），或者你只是忘了安装Tomahawk和/或其依赖关系commons-fileupload,commons-logging,commons-io和/或commons-el（只需将JAR文件放入/WEB-INF/lib）。

来源

2010-02-23 12:08:48 BalusC

已经检查了你所说的所有事情。按照你刚才提到的步骤行事。 – Hariharbalaji 2010-02-23 13:34:13

对不起，但例外情况证明，否则。如果你只*确定战斧安装正确，那么毫无疑问就是版本冲突。清理旧版本重复的类路径并对齐所有版本。或者重新读取堆栈跟踪来查找任何**根本原因**（下面的部分），对于您还没有完成/理解的情况。 – BalusC 2010-02-23 13:48:31

使用Tomahawk将数据导出为PDF格式？

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