How to generate a jasper report in java
This tutorial will guide you in generating a jasper report in java. You need: 1.) Eclipse 2.) iReport - http://community.jaspersoft.com...
https://www.czetsuyatech.com/2013/03/javaee-generate-a-jasper-report.html
This tutorial will guide you in generating a jasper report in java.
You need:
1.) Eclipse
2.) iReport - http://community.jaspersoft.com/project/ireport-designer
Steps:
1.) First we need to create a model for our report. For example we have a Student model:
2.) We need to create the report in iReport.
a.) Create a datasource:
Factory class=com.czetsuya.jasper.edition.StudentReportBean
Static method=createBeanCollection
3.) Drag a list component to the report designer and set the data source to our newly created one. You should see something like:
5.) And in our case a managed bean that gets trigger from a command button in UI.
6.) You should be able to download the generated report from a browser.
*Note: You can download the project from my google code account:
https://code.google.com/p/czetsuya/source/browse/#svn%2Ftrunk%2Fjasper-demo
You need:
1.) Eclipse
2.) iReport - http://community.jaspersoft.com/project/ireport-designer
Steps:
1.) First we need to create a model for our report. For example we have a Student model:
public class Student { private String name; private int age; private String address; }
2.) We need to create the report in iReport.
a.) Create a datasource:
Factory class=com.czetsuya.jasper.edition.StudentReportBean
Static method=createBeanCollection
3.) Drag a list component to the report designer and set the data source to our newly created one. You should see something like:
4.) Create the StudentReportBean class, the one that generates the data.
public class StudentReportBean { public StudentReportBean() { } public static List<student> createBeanCollection() { List<student> students = new ArrayList<student>(); Student a = new Student(); a.setName("Tifa Lockheart"); a.setAge(19); a.setAddress("Final Fantasy VII"); students.add(a); Student b = new Student(); b.setName("Rinoa Heartilly"); b.setAge(19); b.setAddress("Final Fantasy VIII"); students.add(b); return students; } }
5.) And in our case a managed bean that gets trigger from a command button in UI.
public void run() throws JRException, IOException { Collection<student> students = StudentReportBean.createBeanCollection(); JRBeanCollectionDataSource beanCollectionDataSource = new JRBeanCollectionDataSource( students, false); String reportPath = FacesContext.getCurrentInstance().getExternalContext() .getRealPath("/WEB-INF/classes/StudentReport.jasper"); JasperReport jasperReport; jasperReport = (JasperReport) JRLoader.loadObjectFromFile(reportPath); Map<string object=""> params = new HashMap<string object="">(); JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, params, beanCollectionDataSource); HttpServletResponse response = (HttpServletResponse) FacesContext.getCurrentInstance() .getExternalContext().getResponse(); ServletOutputStream out = response.getOutputStream(); response.setContentType("application/pdf"); response.setHeader("Content-disposition", "attachment; filename=student-report.pdf"); JasperExportManager.exportReportToPdfStream(jasperPrint, out); out.flush(); out.close(); }
6.) You should be able to download the generated report from a browser.
*Note: You can download the project from my google code account:
https://code.google.com/p/czetsuya/source/browse/#svn%2Ftrunk%2Fjasper-demo
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