Can a report of Jasper operate with an af:button on a page fragment (jsff) or simply on a jsf page?

Mr President.

Because I'm running report jasper jsff page but it does not work but the same report runs on a jsf page.

Concerning

Cherish!

The answer to this question is Yes

We can run report jasper with a button on a page jsff using the servlet class

The same code for jdev worm 12.1.3.0.0 is as below

package ash.view;

import ash.model.SchoolAppModuleImpl;

import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

import java.util.HashMap;
import java.util.Locale;
import java.util.Map;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.design.JasperDesign;
import net.sf.jasperreports.engine.xml.JRXmlLoader;

import oracle.jbo.client.Configuration;

@WebServlet(name = "ReportServlet", urlPatterns = { "/reportservlet" })
public class ReportServlet extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=UTF-8";

    public void init(ServletConfig config) throws ServletException {
        super.init(config);
    }

    protected Connection getConnection() {

        PreparedStatement st = null;
        String amDef = "ash.model.SchoolAppModule";
        String config = "SchoolAppModuleLocal";
        SchoolAppModuleImpl am = (SchoolAppModuleImpl ) Configuration.createRootApplicationModule(amDef, config);

        st = am.getDBTransaction().createPreparedStatement("select 1 from dual", 0);
        Connection conn = null;    

        try {
            conn = st.getConnection();
            return conn;
        } catch (SQLException e) {
        }   

        return null;
    }

    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String var0 = "";
        try {
            var0 = request.getParameter("classId");
        } catch (Exception e) {
            e.printStackTrace();
        }
        response.setContentType(CONTENT_TYPE);
        Map parameters = new HashMap();
               parameters.put("format", "pdf");
               parameters.put("WEBDIR", getServletContext().getRealPath("/"));
               parameters.put("REPORT_LOCALE", new Locale("ar"));

               parameters.put("classId", new String(var0));
               Connection conn = null;
               InputStream is = null;
               try
               {
                 conn = getConnection();
                 is = getServletContext().getResourceAsStream("/WEB-INF/reports/ClassDataReport.jrxml");

                 response.setContentType("application/pdf");
                 response.addHeader("Content-Disposition", "attachment; filename=ClassDataReport.pdf");

                 JasperDesign jasperDesign = JRXmlLoader.load(is);
                 JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign);
                 JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, conn);
                 JasperExportManager.exportReportToPdfStream(jasperPrint, response.getOutputStream());

                 conn.close();
               }
               catch (Exception e) {
                 e.printStackTrace();
               } finally {
                 closeConnection(conn);
                 try {
                     if(is !=null){
                         is.close();
                     }                   

                 } catch (Exception localException1)
                 {
                 }
               }

        PrintWriter out = response.getWriter();
        out.println("");
        out.println("ReportServlet");
        out.println("");
        out.println("The servlet has received a GET. This is the reply.");
        out.println("");
        out.close();
    }

    protected static void closeConnection(Connection conn) {
        try {
            if(conn !=null){
                conn.close();
            }
        } catch (Exception ex) {
            //  System.out.println("Developer Msg : Exception in printReport1Servlet.closeConnection()");
        }
    }
}

Concerning

Tags: Java

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