Download the image blob field
Hello experts,
I am trying to download an image via the input file to convert it to a blob field and then save it in the database.
So I linked the value of the input file to create the blob through bean, I found on the internet.
My Page binding components:
< af:inputFile id = value = "#{UploadBean.file}" / 'inputImage' >
< af:button text = 'Upload' id = 'btnUpload' action = "#{UploadBean.uploadImage}" / >
My Bean:
private BlobDomain img;
private UploadedFile inasmuch;
public UploadBean() {}
Super();
}
public UploadedFile getFile() {}
return inasmuch;
}
{} public void next (file UploadedFile)
Inasmuch = file;
}
public void uploadImage() {}
UploadedFile myfile = (UploadedFile) this.getFile ();
IMG = createBlobDomain (myfile);
System.out.println (IMG);
}
Private BlobDomain createBlobDomain (file UploadedFile) {}
InputStream in = null;
BlobDomain blobDomain = null;
OutputStream out = null;
try {}
in = file.getInputStream ();
blobDomain = new BlobDomain();
out = blobDomain.getBinaryOutputStream ();
ubyte [] buffer = new byte [8192];
int bytesRead = 0;
While ((bytesRead = in.read (buffer, 0, 8192))! = - 1) {}
out. Write (buffer, 0, bytesRead);
}
in. Close();
} catch (IOException e) {}
e.printStackTrace ();
} catch (SQLException e) {}
e.fillInStackTrace ();
}
Return blobDomain;
}
But it seems to me that the file is still set to null after choosing an image, because it throws the following error message:
<oracle.adf.common> <AdfDiagnosticsJarsVersionDumpImpl> <executeDump> <Pfad für den Dump der JAR-Version :C:\Users\user\AppData\Roaming\JDeveloper\system12.1.3.0.41.140521.1008\DefaultDomain\servers\DefaultServer\adr\diag\ofm\defaultdomain\defaultserver\incident\incdir_45/adf_DiagnosticsJarsVersionDump42_i45.txt>
< oracle.dfw.impl.incident.DiagnosticsDataExtractorImpl > < DiagnosticsDataExtractorImpl > < createADRIncident > < 46 event mit Problemschlussel 'ADFC-00032 [ADFc]' is >
< oracle.adf.view > < RichExceptionHandler > < _logUnhandledException > < ADF_FACES - 60098:Faces - empfangt nicht behandelte Exceptions in Phase INVOKE_APPLICATION 5 cases >
javax.faces.FacesException: #{UploadBean.uploadImage}: //C:/Users/user/AppData/Roaming/JDeveloper/system12.1.3.0.41.140521.1008/o.j2ee/drs/REA/ViewPflegeWebApp.war/de/test/viewpflege/pages/UploadPage.jsff @13,85 action = "#{UploadBean.uploadImage}": java.lang.NullPointerException "
...
What I'm missing or doing wrong?
Uusing JDeveloper 12.1.3
Thank you!
Hello
Make sure that the UsesUpload of the
also, for more information check this: https://tompeez.wordpress.com/2011/11/26/jdev11-1-2-1-0-handling-imagesfiles-in-adf-part-1/ Kind regards Habib
Tags: Java
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