/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
*/
package servlets;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRExporterParameter;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.export.JRHtmlExporter;
import net.sf.jasperreports.engine.export.JRHtmlExporterParameter;
import net.sf.jasperreports.engine.util.JRLoader;
import net.sf.jasperreports.j2ee.servlets.ImageServlet;
import datasource.WebappDataSource;
/**
* @author Teodor Danciu (teodord@users.sourceforge.net)
* @version $Id: HtmlServlet.java 3031 2009-08-27 11:14:57Z teodord $
*/
public class HtmlServlet extends HttpServlet
{
/**
*
*/
public void service(
HttpServletRequest request,
HttpServletResponse response
) throws IOException, ServletException
{
ServletContext context = this.getServletConfig().getServletContext();
response.setContentType("text/html");
PrintWriter out = response.getWriter();
try
{
File reportFile = new File(context.getRealPath("/reports/WebappReport.jasper"));
if (!reportFile.exists())
throw new JRRuntimeException("File WebappReport.jasper not found. The report design must be compiled first.");
JasperReport jasperReport = (JasperReport)JRLoader.loadObject(reportFile.getPath());
Map parameters = new HashMap();
parameters.put("ReportTitle", "Address Report");
parameters.put("BaseDir", reportFile.getParentFile());
JasperPrint jasperPrint =
JasperFillManager.fillReport(
jasperReport,
parameters,
new WebappDataSource()
);
JRHtmlExporter exporter = new JRHtmlExporter();
request.getSession().setAttribute(ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE, jasperPrint);
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_WRITER, out);
exporter.setParameter(JRHtmlExporterParameter.IMAGES_URI, "image?image=");
exporter.exportReport();
}
catch (JRException e)
{
out.println("<html>");
out.println("<head>");
out.println("<title>JasperReports - Web Application Sample</title>");
out.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"../stylesheet.css\" title=\"Style\">");
out.println("</head>");
out.println("<body bgcolor=\"white\">");
out.println("<span class=\"bnew\">JasperReports encountered this error :</span>");
out.println("<pre>");
e.printStackTrace(out);
out.println("</pre>");
out.println("</body>");
out.println("</html>");
}
}
}