• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 291
  • Last Modified:

load and parse xml

i want to generate  report using jasper report with xml as datasource
i m getting the null value in doc of this line
  System.out.println("After Parse method_______________->++++++ "+doc);

my xml file is in reports folder of my project

and it gives the following exception  
i m sending the whole code
in code block i give the action class

package net.ensode.jasperbook.struts;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.HashMap;
import javax.servlet.ServletContext;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.sql.DataSource;
import net.sf.jasperreports.engine.JRResultSetDataSource;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperRunManager;
import net.sf.jasperreports.engine.data.JRXmlDataSource;
import org.apache.struts.Globals;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.w3c.dom.Document;
public class GenerateReportAction extends Action
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception
     ServletContext application=servlet.getServletContext();
     ServletOutputStream servletOutputStream =response.getOutputStream();
         System.out.println("Compiling report...");
         JasperCompileManager.compileReportToFile("C:/Documents and Settings/ashish/My Documents/NetBeansProjects/StrutsJasperCompleteApplication/reports/RemoteReport.jrxml");
         System.out.println("Compilation Succesfully----------------------->");
         BasicDom basicDom=new BasicDom();
         Document doc =basicDom.parseXmlFile("reports/userxml.xml", false);
         System.out.println("After Parse method_______________->++++++ "+doc);
         JRXmlDataSource xmlDataSource = new JRXmlDataSource(doc,"/userData/M55_USERS_NEW");
         System.out.println("Filling report...");
         InputStream reportStream=new FileInputStream("C:/Documents and Settings/ashish/My Documents/NetBeansProjects/StrutsJasperCompleteApplication/reports/RemoteReport.jasper");
         JasperRunManager.runReportToPdfStream(reportStream,servletOutputStream, new HashMap(),xmlDataSource);
        }catch(Exception e){
     return mapping.getInputForward();
this is my  BasicDom.java 
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
package net.ensode.jasperbook.struts;
import java.io.*;
    import javax.xml.parsers.*;
    import org.w3c.dom.*;
    import org.xml.sax.*;
    public class BasicDom {
        // Parses an XML file and returns a DOM document.
        // If validating is true, the contents is validated against the DTD
        // specified in the file.
        public static Document parseXmlFile(String filename, boolean validating) {
            try {
                // Create a builder factory
                DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
                System.out.println("In Parse Methood++++++++++++++++++++++++++++++++++");
                // Create the builder and parse the file
                Document doc = factory.newDocumentBuilder().parse(new File(filename));
                return doc;
            } catch (SAXException e) {
                // A parsing error occurred; the xml input is not valid
            } catch (ParserConfigurationException e) {
            } catch (IOException e) {
            return null;

Open in new window

Adwait Chitaley
Adwait Chitaley
  • 3
  • 2
1 Solution
how are you running it?

If you would answer some of my questions I can get it working for you ;)


Document doc =basicDom.parseXmlFile(getClass().getResourceAsStream("/reports/userxml.xml", false));

Open in new window

Typo sorry
Document doc =basicDom.parseXmlFile(getClass().getResourceAsStream("/reports/userxml.xml"), false);

Open in new window

7 new features that'll make your work life better

It’s our mission to create a product that solves the huge challenges you face at work every day. In case you missed it, here are 7 delightful things we've added recently to monday to make it even more awesome.

Sorry - i see it's file-based. Ignore that
> how are you running it?

If you are running it in a web application then use this:

ServletContext application = getServlet().getServletContext();
Document doc =basicDom.parseXmlFile(application.getRealPath("reports/userxml.xml"), false);

hummm i think this the problem with the path of file you are giving......

as i do not have you folder structure, the approach below is just a work around for you to find if that really is the problem. Its long and weird, but really helpful in determining the paths problem.
use the following code to create file in your code above.

File file = new File("abc.txt");

this will create file somewhere in you project's directory, check if that is created parallel to "reports" folder? Most likely answer will be "No" and this is where your problem is. Now, use location of "abc.txt"  to determine the right path to your required XML.


Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Never miss a deadline with monday.com

The revolutionary project management tool is here!   Plan visually with a single glance and make sure your projects get done.

  • 3
  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now