Hi,
I'm implementing a very basic file uploader portlet such, actually I'm trying
the portlet provided in the samples:
| public class ResumeTask extends GenericPortlet {
|
| public void processAction(ActionRequest req, ActionResponse resp)
throws PortletException, PortletSecurityException, IOException
| {
|
| //
| List fileNames = new ArrayList();
| List fileSizes = new ArrayList();
| List descriptions = new ArrayList();
|
| //
| try
| {
| DiskFileItemFactory factory = new DiskFileItemFactory();
| PortletFileUpload upload = new PortletFileUpload(factory);
| List fileItems = upload.parseRequest(req);
| for (Iterator iterator = fileItems.iterator();
iterator.hasNext();)
| {
| FileItem item = (FileItem)iterator.next();
| if (item.getFieldName().equals("File"))
| {
| fileNames.add("" + item.getName());
| fileSizes.add("" + item.getSize());
| }
| else if (item.getFieldName().equals("Description"))
| {
| descriptions.add("" +
item.getString(req.getCharacterEncoding()));
| }
| }
| }
| catch (FileUploadException e)
| {
| throw new PortletException(e);
| }
|
| //
| resp.setRenderParameter("fileNames",
(String[])fileNames.toArray(new String[fileNames.size()]));
| resp.setRenderParameter("fileSizes",
(String[])fileSizes.toArray(new String[fileSizes.size()]));
| resp.setRenderParameter("contents",
(String[])descriptions.toArray(new String[descriptions.size()]));
| }
|
| protected void doView(RenderRequest req, RenderResponse resp) throws
PortletException, PortletSecurityException, IOException
| {
| //
| resp.setContentType("text/html");
|
| //
| PrintWriter writer = resp.getWriter();
|
| String[] fileNames = req.getParameterValues("fileNames");
| String[] fileSizes = req.getParameterValues("fileSizes");
| String[] descriptions = req.getParameterValues("contents");
| if (descriptions != null)
| {
| for (int i = 0; i < descriptions.length; i++)
| {
| writer.println("Received description " + descriptions +
"<br/>");
| }
| }
| if (fileNames != null && fileSizes != null && fileNames.length ==
fileSizes.length)
| {
| for (int i = 0; i < fileNames.length; i++)
| {
| writer.println("Received file " + fileNames + " with size "
+ fileSizes + "<br/>");
| }
| }
|
| //
| writer.println("<form action=\"" + resp.createActionURL() + "\"
method=\"post\" enctype=\"multipart/form-data\">");
| writer.println("<table>");
| writer.println("<tr><td>Description:</td>");
| writer.println("<td><input type=\"text\"
name=\"Description\"></td></tr>");
| writer.println("<tr><td>File:</td>");
| writer.println("<td><input type=\"file\"
name=\"File\"></td></tr>");
| writer.println("<tr><td><input type=\"submit\"
name=\"Upload\"></td></tr>");
| writer.println("</table>");
| writer.println("</form>");
| }
| }
|
But I'm getting a nasty exception:
anonymous wrote :
|
| 18:11:53,078 ERROR [DefaultPortalControlPolicy] Rendering portlet window
produced an error
| org.jboss.portal.portlet.PortletInvokerException:
javax.servlet.ServletException
| at
org.jboss.portal.portlet.container.PortletContainerInvoker.invoke(PortletContainerInvoker.java:212)
| at
org.jboss.portal.portlet.state.producer.ProducerPortletInvoker.invoke(ProducerPortletInvoker.java:233)
| at
org.jboss.portal.core.impl.portlet.state.ProducerPortletInvoker.org$jboss$portal$core$impl$portlet$state$ProducerPortletInvoker$invoke$aop(ProducerPortletInvoker.java:53)
| at
org.jboss.portal.core.impl.portlet.state.ProducerPortletInvoker$invoke_N8654503705355129869.invokeNext(ProducerPortletInvoker$invoke_N8654503705355129869.java)
| at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126)
| at
org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:195)
| at
org.jboss.portal.core.impl.portlet.state.ProducerPortletInvoker$invoke_N8654503705355129869.invokeNext(ProducerPortletInvoker$invoke_N8654503705355129869.java)
| at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126)
| at
org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:195)
| at
org.jboss.portal.core.impl.portlet.state.ProducerPortletInvoker$invoke_N8654503705355129869.invokeNext(ProducerPortletInvoker$invoke_N8654503705355129869.java)
| at
org.jboss.portal.core.impl.portlet.state.ProducerPortletInvoker.invoke(ProducerPortletInvoker.java)
| at
org.jboss.portal.portlet.federation.impl.FederatedPortletInvokerService.invoke(FederatedPortletInvokerService.java:147)
| at
org.jboss.portal.portlet.federation.impl.FederatingPortletInvokerService.invoke(FederatingPortletInvokerService.java:150)
| at
org.jboss.portal.core.impl.model.instance.InstanceContainerImpl$1.invoke(InstanceContainerImpl.java:99)
| at
org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:131)
| at
org.jboss.portal.portlet.management.PortletContainerManagementInterceptorImpl.invoke(PortletContainerManagementInterceptorImpl.java:58)
| at
org.jboss.portal.portlet.invocation.PortletInterceptor.invoke(PortletInterceptor.java:38)
|
|
|
|
|
| Caused by: java.lang.LinkageError: loader constraints violated when linking
org/apache/commons/fileupload/FileItemFactory class
| at com.mnemo.siwo.portlet.ResumeTask.processAction(ResumeTask.java:62)
| at
org.jboss.portal.portlet.impl.jsr168.PortletContainerImpl.invokeAction(PortletContainerImpl.java:458)
| at
org.jboss.portal.portlet.impl.jsr168.PortletContainerImpl.dispatch(PortletContainerImpl.java:401)
| at
org.jboss.portal.portlet.container.PortletContainerInvoker$1.invoke(PortletContainerInvoker.java:86)
| at
org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:131)
| at
org.jboss.portal.core.aspects.portlet.TransactionInterceptor.org$jboss$portal$core$aspects$portlet$TransactionInterceptor$invokeNotSupported$aop(TransactionInterceptor.java:86)
| at
org.jboss.portal.core.aspects.portlet.TransactionInterceptor$invokeNotSupported_N4547270787964792031.invokeNext(TransactionInterceptor$invokeNotSupported_N4547270787964792031.java)
| at org.jboss.aspects.tx.TxPolicy.invokeInNoTx(TxPolicy.java:66)
| at
org.jboss.aspects.tx.TxInterceptor$NotSupported.invoke(TxInterceptor.java:112)
| at
org.jboss.portal.core.aspects.portlet.TransactionInterceptor$invokeNotSupported_N4547270787964792031.invokeNext(TransactionInterceptor$invokeNotSupported_N4547270787964792031.java)
| at org.jboss.aspects.tx.TxPolicy.invokeInNoTx(TxPolicy.java:66)
| at
org.jboss.aspects.tx.TxInterceptor$NotSupported.invoke(TxInterceptor.java:102)
| at
org.jboss.portal.core.aspects.portlet.TransactionInterceptor$invokeNotSupported_N4547270787964792031.invokeNext(TransactionInterceptor$invokeNotSupported_N4547270787964792031.java)
| at
org.jboss.portal.core.aspects.portlet.TransactionInterceptor.invokeNotSupported(TransactionInterceptor.java)
| at
org.jboss.portal.core.aspects.portlet.TransactionInterceptor.invoke(TransactionInterceptor.java:56)
|
|
The error occurs at line:
PortletFileUpload upload = new PortletFileUpload(factory);
Please advise. Tx!
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