Hi everyone,
This thread has already been posted, but no response was given...
So i give more infos about my config.
I desperatly try to display a report in HTML format from a servlet...
==> It works perfectly in PDF format (with the JasperExportManager.exportReportToPdf() method)
My webapp is deployed on JONAS server, in a war file, not in a explode form.
But Jonas creates automatically an exploded tree, from the war file.
##################
## in my servlet :
##################
PrintWriter out = res.getWriter();
res.setContentType("text/html");
JRHtmlExporter exporter = new JRHtmlExporter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_WRITER, out);
exporter.setParameter(JRHtmlExporterParameter.IMAGES_URI, "images/");
exporter.setParameter(JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, new Boolean(false));
try {
exporter.exportReport();
} catch (JRException jrex) {
...
}
##########################################################
## in my JRXML file, the image is renferenced like this :
##########################################################
<jasperReport
name="CnxPerDayChartScriptlet"
columnCount="1"
printOrder="Vertical"
orientation="Portrait"
columnWidth="515"
columnSpacing="0"
leftMargin="40"
rightMargin="40"
topMargin="50"
bottomMargin="50"
scriptletClass="com.axiliance.realsentry.wssologs.charts.CnxPerDayChartScriptlet"
whenNoDataType="NoPages"
isTitleNewPage="false"
isSummaryNewPage="false">
[...]
<!--
* PARAMETERS :
* - a Dataset object
* - a ChartConfig object : report characteristics
-->
<parameter name="dataset" isForPrompting="true" class="org.jfree.data.category.CategoryDataset"/>
<parameter name="chartDimension" isForPrompting="true" class="com.mycompany.charts.ChartDimension"/>
[...]
<image scaleImage="Clip" vAlign="Top" hAlign="Center"
isUsingCache="false" evaluationTime="Now"
hyperlinkType="Reference" hyperlinkTarget="Self" >
<reportElement
mode="Opaque"
x="0"
y="60"
width="510"
height="660"
forecolor="#000000"
backcolor="#FFFFFF"
key="image"
stretchType="NoStretch"
positionType="FixRelativeToTop"
isPrintRepeatedValues="true"
isRemoveLineWhenBlank="false"
isPrintInFirstWholeBand="false"
isPrintWhenDetailOverflows="false"/>jasperreports-1.2.0
<box border="Thin" borderColor="#000000" />
<graphicElement stretchType="NoStretch" pen="None"
fill="Solid" />
<imageExpression class="java.awt.Image">
<![CDATA[
((com.mycompany.charts.CnxPerDayChartScriptlet)$P{REPORT_SCRIPTLET}).generateChart($P{dataset},$P{chartDimension})
]]>
</imageExpression>
</image>
[...]
==> The generateChart() method of my CnxPerDayChartScriptlet
(JRDefaultScriptlet) is responsible for generating the buffered image
##############################################
# in the html generated code, the IMG tag is :
##############################################
<img src="" ..../></td>
BUT BUT BUT...
... this image is not created, so when the browser GET the image, the response is 404...
I don't see any images in the exploded directory of my webapp.
I had a look to JRHtmlExporter class, trying to debug it.
I don't understand where or when the image is generated,
(i mean when the exportReport() method of JRHtmlExporter handles the ChartScriptlet work)
>>> A help would be deeply welcomed.
(JasperReports version : JasperReports 1.2.0)
Thanx in advance.
