Trying to call Jasper iReport through portlet & getting error

Question

Hi,
I have written the following code which is linked to a button in my portlet.
package com.ext.portlet.drpdwn.action;
import com.liferay.portal.struts.PortletAction;
import com.liferay.portal.util.Constants;
import javax.portlet.WindowState;
import javax.servlet.jsp.PageContext;
import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.PortletConfig;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.HashMap;
import java.util.Map;
import java.sql.*;
import javax.portlet.PortletException;
import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.engine.design.JasperDesign;
import net.sf.jasperreports.engine.xml.JRXmlLoader;
import net.sf.jasperreports.engine.export.*;
public class QualityReportAction extends PortletAction
     public void processAction(ActionMapping mapping, ActionForm form,PortletConfig config,ActionRequest req, ActionResponse res)
throws Exception
          String typeofreport_val = req.getParameter("types_of_reports").trim();
          System.out.println("Report Name is:" +typeofreport_val);
          JasperReport jasperReport;
          JasperPrint jasperPrint;
          JasperDesign jasperDesign;
          Connection connection = null;
          if ( null == typeofreport_val || "".equals("typeofreport_val"))
               setForward(req,"portlet.ext.drpdwn.error");
          else
               try
                    Class.forName("org.postgresql.Driver");
                    String url = "jdbc:postgresql://10.10.33.39:5432/globus_db?user=postgres&password=marines@123";
                    connection = DriverManager.getConnection(url);
                    // load JasperDesign from XML and compile it into JasperReport
                    jasperDesign = JRXmlLoader.load("C:/testRep/CCQR.jrxml");
                    jasperReport = JasperCompileManager.compileReport(jasperDesign);
                    // fill JasperPrint using fillReport() method
                    jasperPrint = JasperFillManager.fillReport(jasperReport,null,connection);
                    JasperExportManager.exportReportToPdfFile(jasperPrint,"C:/testRep/ccqr.pdf");
               catch (SQLException ex)
                    setForward(req,"portlet.ext.drpdwn.error");
                    System.out.println("-------------------------------------------");
                    while (ex != null)
                         ex.printStackTrace();
                         ex = ex.getNextException();
                    System.out.println("-------------------------------------------");
               catch(Exception e)
                    System.out.println("-------------------------------------------");
                    System.out.println("Exception is --> "+e);
                    System.out.println("-------------------------------------------");
               setForward(req,"portlet.ext.drpdwn.success");                    
     public ActionForward render(ActionMapping mapping,ActionForm form,PortletConfig config, RenderRequest req,RenderResponse res) throws Exception
          if (getForward(req) != null && !getForward(req).equals(""))
               return mapping.findForward(getForward(req));
          else
               return
               mapping.findForward("portlet.ext.drpdwn.view");
}When I try to run this code I get the following error:
exception  javax.servlet.ServletException: Servlet execution threw an exception
     com.liferay.filters.secure.SecureFilter.doFilter(SecureFilter.java:144)
     com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.doFilter(VirtualHostFilter.java:136)
     com.liferay.portal.servlet.FriendlyURLServlet.service(FriendlyURLServlet.java:126)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
     com.liferay.filters.strip.StripFilter.doFilter(StripFilter.java:95)
     com.liferay.filters.secure.SecureFilter.doFilter(SecureFilter.java:144)
     com.liferay.filters.compression.CompressionFilter.doFilter(CompressionFilter.java:116)
     com.liferay.filters.doubleclick.DoubleClickFilter.doFilter(DoubleClickFilter.java:138)
     com.liferay.portal.servlet.filters.layoutcache.LayoutCacheFilter.doFilter(LayoutCacheFilter.java:170)
     com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.doFilter(AutoLoginFilter.java:106)
     com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.doFilter(VirtualHostFilter.java:136) 
root cause  java.lang.NoClassDefFoundError: net/sf/jasperreports/engine/xml/JRXmlLoader     com.ext.portlet.drpdwn.action.QualityReportAction.processAction(QualityReportAction.java:59)I have the following necessary files in my class path:
itext-1.3.1.jar
iReport.jar
commons-logging-1.0.2.jar
commons-javaflow-20060411.jar
commons-digester-1.7.jar
commons-collections-2.1.jar
commons-beanutils-1.7.jar
jasperreports-2.0.2.jar
jdt-compiler-3.1.1.jar
log4j-1.2.15.jar
xercesImpl.jar   Please suggest me where I am going wrong.
Thanks & Regards
Saurabh.
Edited by: Saurabh.J on Nov 27, 2007 2:33 PM

Answer 1

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