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JasperReports: is it possible to use multiple data sources, or if not, to use collections in parameters?


JasperReports: is it possible to use multiple data sources, or if not, to use collections in parameters?

By : Matt Nelson
Date : October 28 2020, 08:00 PM
I wish this helpful for you I think what you want is a Subreport within your report.
A Subreport can have a different datasource than the main report.
code :


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JasperReports and custom data sources

JasperReports and custom data sources


By : Muhammad Rashed Otah
Date : March 29 2020, 07:55 AM
With these it helps Every JasperReports template can have two different data sources. One is hooking it directly to a database using some jdbc driver or, in your case, providing a collection of java beans (POJO's), usually list.
JasperReports template is similar to a method definition. It has a name, i.e. compiled JR object and parameters (data source and a list of input parameters of some of the most popular Java types).
How to pass multiple parameters to reports and export to PDF in JasperReports from Java

How to pass multiple parameters to reports and export to PDF in JasperReports from Java


By : springzen
Date : March 29 2020, 07:55 AM
it should still fix some issue I'm trying to use Jasper Reports to help with reporting in my application. I will have to display my reports in HTML (JSP) and would also need to be able to export the reports to PDF from within my web page.
code :
//Preparing data - change this as per your requirement
List<DataDTO> dataDTOList = new ArrayList<DataDTO>();
DataDTO dataDTO = new DataDTO; 
dataDTO.setFirstName("FirstName"); // in your Jasper field name is 'firstName' as type String
dataDTO.setLastName("LastName"); // in your Jasper field name is 'lastName' as type String
dataDTOList.add(dataDTO);

// Adding data
JRDataSource jrdatasource = new JRBeanCollectionDataSource(dataDTOList);

// Exporting report
File jasperFile = new File("C:/YourReport.jasper"); // change this
JasperReport jasperReport = (JasperReport) JRLoader.loadObject(new FileInputStream(jasperFile.getAbsolutePath()));             
Map parameters = new HashMap();
JRConcurrentSwapFile jrSwapFile = new JRConcurrentSwapFile("C:/PDFOutput/"),30,2);
JRSwapFileVirtualizer virtualizer = new JRSwapFileVirtualizer(2,jrSwapFile,true);
parameters.put(JRParameter.REPORT_VIRTUALIZER, virtualizer);
JasperPrint jpPrintObj = JasperFillManager.fillReport(jasperReport,parameters,jrdatasource);
JasperExportManager.exportReportToPdfFile(jpPrintObj,"C:/PDFOutput/");`
JasperReports parameters works in iReport but fails on JasperReports Server (II)

JasperReports parameters works in iReport but fails on JasperReports Server (II)


By : Almer Delos Santos
Date : March 29 2020, 07:55 AM
hop of those help? I have a very similar problem to the one described at [JasperReport parameters works in iReport but fails on JasperServer] post. , Actually that is a simple bug:
I just found out that:
code :
value column: id  
value column: serialnr  
JasperReports API: How to pass multiple parameters to report

JasperReports API: How to pass multiple parameters to report


By : Akshay Rale
Date : March 29 2020, 07:55 AM
it should still fix some issue Since you are using a HashMap you can store there many values. You can do it like:
code :
HashMap hm = new HashMap();  
hm.put(perameterName, billNo);
hm.put("thisDate", thisDate);
hm.put("theDate", theDate);
hm.put("anotherParam", paramValue);
public void prints(  String fileName, String outFileName, HashMap hm){
loop in bash for parameters that uses multiple sources

loop in bash for parameters that uses multiple sources


By : user2213781
Date : March 29 2020, 07:55 AM
I hope this helps you . In loop (using .sh extensions for bash scripts is not great practice):
code :
#!/bin/bash
for i in ~/config/*.conf; do
  i_basename=${i##*/}            # change ~/config/foo.conf to just foo.conf
  i_basename=${i_basename%.conf} # change foo.conf to just foo
  ./get "$i_basename"
  sleep 5
done
#!/bin/bash

# Using POSIX function syntax; see http://wiki.bash-hackers.org/scripting/obsolete
testFunction() {
  echo "$var"
}

cfg_file="config/$1.conf"

if [ -f "$cfg_file" ]; then
  . "$cfg_file"
  testFunction
else
  echo "$cfg_file doesn't exist"
  exit 1
fi
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