Primefaces數據導出器不工作

我正在使用primefaces 5.1。我試圖簡單地將數據作爲pdf從數據表導出爲primefaces。要使用primefaces 5.1的dataexporter，需要添加itext 2.1.7依賴項。我的項目是一個基於Maven的項目。我加了depenendency：Primefaces數據導出器不工作

<dependency> 
    <groupId>com.lowagie</groupId> 
    <artifactId>itext</artifactId> 
    <version>2.1.7</version> 
</dependency>

代碼的相關部分是：

<p:commandButton value="Export" ajax="false"> 
    <p:dataExporter type="pdf" target="tbl" fileName="cars"/> 
</p:commandButton>

數據表工作正常。我不認爲代碼是問題。無論如何，這是我從玻璃魚4.1控制檯得到的錯誤：

Warning: StandardWrapperValve[Faces Servlet]: Servlet.service() for  servlet Faces Servlet threw exception 
java.lang.ClassNotFoundException: com.lowagie.text.Phrase 
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366) 
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358) 
    at org.primefaces.component.export.ExporterFactory.getExporterForType(ExporterFactory.java:34) 
    at org.primefaces.component.export.DataExporter.processAction(DataExporter.java:88) 
    at javax.faces.event.ActionEvent.processListener(ActionEvent.java:88) 
    at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:813) 
    at javax.faces.component.UICommand.broadcast(UICommand.java:300) 
    at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790) 
    at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282) 
    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) 
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) 
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198) 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646) 
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160) 
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734) 
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673) 
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174) 
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:415) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:282) 
    at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459) 
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167) 
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201) 
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175) 
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235) 
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119) 
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284) 
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201) 
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133) 
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112) 
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77) 
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561) 
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112) 
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117) 
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56) 
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137) 
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565) 
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545) 
    at java.lang.Thread.run(Thread.java:745)

任何幫助將是偉大的！

來源

2015-10-17 zxcvbnm

你停止服務器，清理及建造和部署？據我所知，Netbeans有時需要「依靠構建」。如果你擴展了構建的war，那麼這個jar是在/ WEB-INF/lib /中？ –

我有時會遇到類似的問題，通過手動將缺少的jar複製到服務器來解決;/glassfish/domains/domain1/lib/ext（實際上ext-folder的內部和外部都沒有發現哪一個工作）。但它不是最好的解決方案 –

它沒有你的建議。謝謝。 – zxcvbnm

也許，如果別人需要它！

<h:commandLink id="pdf"> 
       <p:graphicImage url="resources/demo/images/pdf.png" /> 
       <p:dataExporter type="pdf" target="tbl"           fileName="reporteTimbre" preProcessor="#{fullTimeView.preProcessPDF}" /> 
</h:commandLink>

，並

<dependency> 
    <groupId>com.lowagie</groupId> 
    <artifactId>itext</artifactId> 
     <version>2.1.7</version> 
</dependency>

另外順便說一下...

public void preProcessPDF(Object document) throws IOException, BadElementException, DocumentException { 
      Document pdf = (Document) document; 
      pdf.open(); 
      pdf.setPageSize(PageSize.A4); 
      pdf.setPageCount(0); 


      ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext(); 
      String logo = externalContext.getRealPath("") + File.separator + "resources" + File.separator + "demo" + File.separator + "images" + File.separator + "gadCuenca.png"; 

      pdf.add(Image.getInstance(logo)); 
    }

來源

2017-03-03 03:43:35

Primefaces數據導出器不工作

回答

相關問題