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POPhoto size not getting updated in the database
 

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  1. POPhoto size not getting updated in the database
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    <p>I am trying insert the details of a picture in a database. Whenever I am submitting the data I am getting a null point exception on line 52 of my PictureBean, it showing that uploadedFile.getSize() is returning null. Other details of picture are not causing any problem.</p> <p>Here is my xhtml file</p> <pre><code>&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt; &lt;html xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core" xmlns:p="http://primefaces.org/ui"&gt; &lt;h:head&gt;Add Photo&lt;/h:head&gt; &lt;h:form enctype="multipart/form-data"&gt; &lt;h:panelGrid columns="2"&gt; &lt;h:outputText value="Photo"/&gt; &lt;p:fileUpload fileUploadListener="#{pictureBean.handleFileUpload}"/&gt; &lt;h:outputText value="Picture ID: " /&gt; &lt;p:inputText styleClass="outputLabel" value="#{pictureBean.picture.pictureId}" /&gt; &lt;h:outputText value="Picture Name: " /&gt; &lt;p:inputText styleClass="outputLabel" value="#{pictureBean.picture.pictureName}" /&gt; &lt;h:outputText value="Picture Details: " /&gt; &lt;p:inputText styleClass="outputLabel" value="#{pictureBean.picture.pictureDetails}" /&gt; &lt;h:outputText value="Album ID: " /&gt; &lt;p:inputText styleClass="outlabel" value="#{pictureBean.picture.albumId}"/&gt; &lt;p:commandButton value="Add Photo" action="#{pictureBean.save}"/&gt; &lt;/h:panelGrid&gt; &lt;/h:form&gt; &lt;/html&gt; </code></pre> <p>Here is my PictureBean</p> <pre><code>package com.bean; import javax.faces.context.FacesContext; import javax.faces.event.PhaseId; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence.Persistence; import javax.servlet.http.HttpSession; import org.primefaces.event.FileUploadEvent; import org.primefaces.model.UploadedFile; import com.entity.Picture; import com.entity.User; public class PictureBean { Picture picture; private UploadedFile uploadedFile; private EntityManager em; public PictureBean(){ picture = new Picture(); EntityManagerFactory emf=Persistence.createEntityManagerFactory("FreeBird"); em =emf.createEntityManager(); } public Picture getPicture() { return picture; } public void setPicture(Picture picture) { this.picture = picture; } public void handleFileUpload(FileUploadEvent e) { System.out.println("file handler called"); uploadedFile = e.getFile(); String fileName=uploadedFile.getFileName(); fileName=fileName.substring(fileName.lastIndexOf("\\")+1); System.out.println(fileName); byte[] a = uploadedFile.getContents(); PhaseId currentPhaseId = FacesContext.getCurrentInstance().getCurrentPhaseId(); System.out.println("current phase id"+currentPhaseId); picture.setPicture(a); } public String save(){ FacesContext context = FacesContext.getCurrentInstance(); HttpSession session = (HttpSession) context.getExternalContext().getSession(true); User user = (User) session.getAttribute("userdet"); picture.setEmail(user.getEmail()); picture.setPictureSize(uploadedFile.getSize()); System.out.println("picture save called"); em.getTransaction().begin(); em.persist(picture); em.getTransaction().commit(); return "success"; } } </code></pre> <p>Here is the exception that I am getting.</p> <pre><code>WARNING: #{pictureBean.save}: java.lang.NullPointerException javax.faces.FacesException: #{pictureBean.save}: 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 org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79) 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:722) 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 com.bean.PictureBean.save(PictureBean.java:52) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) 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 </code></pre>
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