Load blob image in a table component

[macaxrc]

Hi, I have a problem when load a blob image stored in a MySql data base.

I'm try to do this http://stackoverflow.com/questions/15833031/jaspersoft-studio-report-how-to-insert-images-from-database but not works.

I have a fileld ${image_blob} type java.io.InputStream and in a table put and image and in the expresion select this field. 

When I execute the report show the second error:

net.sf.jasperreportengine.JRException: Image Read failed at 

net.sf.jasperreportengine.utilJRJdk14ImageReader.readImage(JRJdk14ImageReader.java:73....

Can I help me?

 

Thanks

[macaxrc]

Can I help me please? I do not know what to do

[mlopez_1]

This what i did:

- Create an object of type Image

- Put a SQL Select with the name of the fileds who have images

- Read all fileds from Select an then change Class Type to java.io.InputStream for those who were images

This works for me since Jasper Server 5.5 against Oracle 11g r2

 

Regards,

 

Mariano

[macaxrc]

Thanks, but I'm try this and don't work. I get an error message like the one I have set appears.

It's possible that this error is for jdk verison?

[tchen]

How did you test the report with this BLOB image embedded? Do not use iReport 5.5/5.6, use JasperStudio or JasperReports Server to test the report instead.

[macaxrc]

Yes, to test de jasper I'm using Jasper Report Server 5.5, I test it using browers and conecting to the server. 

I have run all the resources , I  have seen some case also get the same error .[/code]

Any idea?

[tchen]

How did you define the image type of the BLOB column and how did you display it in the report table?

The following should work in JRS 5.5:

<field name="image" class="java.io.InputStream"/>[/code]

<imageExpression><![CDATA[$F{image}]]></imageExpression>[/code]

 

[tchen]

Import this sample report into your JRS 5.5 repository and test the report in publicTTCsample_report_using_blob_image folder. The report output looks like the following:

[macaxrc]

Hi! Yes, this exemple run perfectly, but I don't find the stored image data. Is possible to see the data?

I think that is possible that my image is stored in diferent codification that java.io not able to read.

How you stored the image in MySql Data base?

Thanks

 

[tchen]

I am not sure how you tested my sample report (by saying "this exemple run perfectly"). If you indeed have imported the sample into your JRS 5.5 repository, you should have seen image file is under the same report unit folder.

This report image is stored in JRS repository database. That is the reason I provide you that sample zip file for you to IMPORT into JRS. In the zip file, it contains not only the report design, but also all report deployment resources including data source connection information and image file. After running the import, you should have everything stored in the reposiotry database ready for report execution.

 

You can review report design using Studio JRS plugin to see where the image blob is comming from

select f.id, f.data as image from jifileresource finner join jiresource r on r.id = f.id and f.file_type = 'img' and r.description = $P{image_description}[/code]

 

and review report unit deployment in JRS web UI to see all the pieces - refer to JRS User Guide adn jasper Studio User Guide for detail (sorry, but I do not wish to recite User Guide information here). The report is deployed in publicTTCsample_report_using_blob_image folder.