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PONullPointerException in File Upload by tomahawk
 

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  1. PONullPointerException in File Upload by tomahawk
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    <p>I want to upload an Excel file to a JBoss Server with JSF, so I used Tomahawk.</p> <p>Here is the view:</p> <pre><code>&lt;%@ taglib uri="http://myfaces.apache.org/extensions" prefix="x"%&gt; &lt;h:form id="MF" enctype="multipart/form-data" &gt; &lt;x:inputFileUpload id="fileupload" value="#{dataentryctl.minvoice}" storage="file" required="false" /&gt; &lt;h:commandButton id="Submit" type="button" action="#{invoiceentryctl.PersistData}" value="save" onclick="revalidateF12();submitForm()" onkeydown="keyDownEvents(this)" /&gt; &lt;/h:form&gt; </code></pre> <p>Here is the controller/model:</p> <pre><code>package panaceaFACweb.FACCtlbean; import org.apache.myfaces.custom.fileupload.UploadedFile; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; public class dataentryctl { private UploadedFile minvoice; public UploadedFile getMinvoice() { return minvoice; } public void setMinvoice(UploadedFile minvoice) { this.minvoice = minvoice; } public String PersistData() { load(); return null; } public void load() { ParseXLS parseXls = new ParseXLS(); try { InputStream input = minvoice.getInputStream(); // ... } catch (IOException e) { e.printStackTrace(); }catch (Exception e) { e.printStackTrace(); } } } </code></pre> <p>I have the following JARs:</p> <ul> <li>tomahawk-1.1.9.jar</li> <li>commons-el-1.0.jar</li> <li>commons-logging-1.1.1.jar</li> <li>commons-fileupload-1.2.2-javadoc.jar</li> <li>commons-io-1.4.jar</li> </ul> <p>Other JARs related to JSF are already there. Other JSP pages work fine.</p> <p>I am getting a <code>NullPointerException</code> on the line <code>InputStream input = minvoice.getInputStream();</code>.</p>
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    1. USUthay
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      1. PONullPointerException in File Upload by tomahawk
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    1. COFormat your code in a code block.
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      1. PONullPointerException in File Upload by tomahawk
      1. USMukul Goel
    2. COWhy are you using MyFaces extensions taglib instead of Tomahawk taglib? Replace `http://myfaces.apache.org/extensions` by `http://myfaces.apache.org/tomahawk` and `<x:inputFileUpload>` by `<t:inputFileUpload>`, just to be sure. What exactly are those JS onclick/onkeydown functions on the submit button doing? Remove them and retry, just to be sure that they didn't do wrong stuff. Do you have MyFaces extensions filter configured in `web.xml`?
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      1. PONullPointerException in File Upload by tomahawk
      1. USBalusC
    3. COYes Mr Mukul , I had changed to http://myfaces.apache.org/tomahawk and <t:inputFileUpload> . Now I am getting "http://myfaces.apache.org/tomahawk" Not found. Error :(. I had Added the Jar and i had also Configured web.xml .
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