["Class not found when loading object" Error]

Hi all,

 

Please help with my encountered problem!

I have a master report with different sub-reports created with iReport 1.3.2. The master report can be run with the pdf engine inside iReport. But then when i put the jasper files to my Tomcat application and called the master.jasper via a servlet, the following error comes out.

 

Class not found when loading object from file: /usr/local/tomcat/webapps/motor/master.jasper

 

All the jasper files are put in /usr/local/tomcat/webapps/motor directory. And here are the coding in servlet

 

Code:

import javax.naming.*;
import javax.sql.*;

import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.engine.export.*;
import java.util.*;
import java.io.*;
import java.sql.*;
import javax.servlet.*; 
import javax.servlet.http.*;

//import dori.jasper.engine.*;
 
public class PrintForm extends HttpServlet {
	private ServletContext application;
	
	public void init(ServletConfig config) throws ServletException {
        super.init(config);  
    }
	
	public void destroy() {
    }
	
	protected void processRequest(HttpServletRequest request,
	        HttpServletResponse response) throws ServletException, IOException {
	
		try {
			application = getServletConfig().getServletContext();
			File reportFile = new File(application.getRealPath("/master.jasper"«»));
			BufferedReader input = new BufferedReader(new FileReader(reportFile)); 
		
			String connstr = input.readLine(); 
			input.close(); 
		
			Map parameters = new HashMap();
			parameters.put("quono", request.getParameter("quono"«»));
			parameters.put("clauses", request.getParameter("clauses"«»));
			parameters.put("namedDriver_percentage", request.getParameter("namedDriver_percentage"«»));
			parameters.put("travelToChina_percentage", request.getParameter("travelToChina_percentage"«»));
			parameters.put("rebate", request.getParameter("rebate"«»));
			parameters.put("loading", request.getParameter("loading"«»));
			parameters.put("mib", request.getParameter("mib"«»));
								
			// Get connection to PMDDLIB
			String DbDriver = "com.microsoft.jdbc.sqlserver.SQLServerDriver";
			String DbUrl = "jdbc:microsoft:«»sqlserver://10.168.2.41:1433;databasename=QM_SYS";
			String DbUser = "qmsys";
			String DbPassword = "it06cyber97";
	
			Connection dbCon = null;
	  	
			Class.forName(DbDriver);
	  	
			dbCon = DriverManager.getConnection(DbUrl, DbUser, DbPassword);
	  	
			byte[] bytes = JasperRunManager.runReportToPdf(reportFile.getPath(), parameters, dbCon);
		
			response.setContentType("application/pdf"«»);
			response.setContentLength(bytes.length);
			ServletOutputStream ouputStream = response.getOutputStream();
			ouputStream.write(bytes, 0, bytes.length);
			ouputStream.flush();
			ouputStream.close();
		
	  	} catch(Exception ioe) {
			System.err.println(ioe.getMessage());
		}
		
	}
	    	
	protected void doGet(HttpServletRequest request,
	      HttpServletResponse response) throws ServletException, IOException {
	      processRequest(request, response);
	}
	   	
	protected void doPost(HttpServletRequest request,
	      HttpServletResponse response) throws ServletException, IOException {
	      processRequest(request, response);
	}
}

 

The PrintForm class is put inside /usr/local/tomcat/webapps/motor/WEB-INF/classes

 

Anyone can help?

 

Many thanks,

Gloria

[Problem with creating multiple pages iReport]

Hi Kaunietiss,

 

Thanks for the information, i can create the subreport successfully. It was due to the page size problem of the one i created, now fixed!

 

Thanks,

Gloria

[Problem with creating multiple pages iReport]

Or can anyone share a sample with 2 subreports that contains only static text? Thanks

[Problem with creating multiple pages iReport]

Hi all,

 

I want to create a iReport with 7 pages but I don't know how it can be done with iReport. I tried to create subreports for each page and create another main report to put these 7 subreports to it but finally the report displayed as a blank PDF. Please help!

 

Million thanks!

 

Best Regards,

Gloria