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POHow to run jasper report in servlet
 

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  1. POHow to run jasper report in servlet
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    <p>I have a simple jasper report which shows some data from database. The jasper report runs well on ireport designer. The problem is when i try to run the report from servlet. I am trying to export the report as pdf when running from a servlet. I included dependencies like </p> <pre><code>- jasperreports-4.6.0.jar - itextpdf-5.1.1.jar - commons-logging-1.1.1.jar - commons-collections-3.2.1.jar - commons-beanutils-1.8.3.jar - commons-digester3-3.2.jar - cglib-2.2.jar </code></pre> <p>I have placed my report1.jasper file inside /web/report1.jasper Here is my servlet file:</p> <pre><code>protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { Connection connection; ServletOutputStream servletOutputStream =response.getOutputStream(); InputStream reportStream =getServletConfig().getServletContext().getResourceAsStream("/report1.jasper"); HashMap parameterMap = new HashMap(); String stdID="510BCT2010"; String semester="1"; parameterMap.put("stdID", stdID); parameterMap.put("semester", semester); try { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); connection = DriverManager.getConnection ("jdbc:odbc:ACEM","",""); JasperRunManager.runReportToPdfStream(reportStream,servletOutputStream, parameterMap, connection); connection.close(); response.setContentType("application/pdf"); servletOutputStream.flush(); servletOutputStream.close(); } catch (Exception e) { // display stack trace in the browser StringWriter stringWriter = new StringWriter(); PrintWriter printWriter = new PrintWriter(stringWriter); e.printStackTrace(printWriter); response.setContentType("text/plain"); response.getOutputStream().print(stringWriter.toString()); } } </code></pre> <p>When I run the servlet for the first time, i get the following error:</p> <pre><code>java.lang.NoClassDefFoundError: org/apache/commons/digester/Rule net.sf.jasperreports.components.ComponentsExtensionsRegistryFactory.&lt;clinit&gt;(ComponentsExtensionsRegistryFactory.java:100) java.lang.Class.forName0(Native Method) java.lang.Class.forName(Class.java:247) net.sf.jasperreports.engine.util.JRClassLoader.loadClassForRealName(JRClassLoader.java:157) net.sf.jasperreports.engine.util.JRClassLoader.loadClassForName(JRClassLoader.java:115) net.sf.jasperreports.engine.util.ClassUtils.instantiateClass(ClassUtils.java:53) net.sf.jasperreports.extensions.DefaultExtensionsRegistry.instantiateRegistry(DefaultExtensionsRegistry.java:237) net.sf.jasperreports.extensions.DefaultExtensionsRegistry.loadRegistries(DefaultExtensionsRegistry.java:214) net.sf.jasperreports.extensions.DefaultExtensionsRegistry.loadRegistries(DefaultExtensionsRegistry.java:162) net.sf.jasperreports.extensions.DefaultExtensionsRegistry.getRegistries(DefaultExtensionsRegistry.java:133) net.sf.jasperreports.extensions.DefaultExtensionsRegistry.getExtensions(DefaultExtensionsRegistry.java:105) net.sf.jasperreports.engine.util.JRStyledTextParser.&lt;clinit&gt;(JRStyledTextParser.java:83) net.sf.jasperreports.engine.fill.JRBaseFiller.&lt;init&gt;(JRBaseFiller.java:121) net.sf.jasperreports.engine.fill.JRVerticalFiller.&lt;init&gt;(JRVerticalFiller.java:88) net.sf.jasperreports.engine.fill.JRVerticalFiller.&lt;init&gt;(JRVerticalFiller.java:103) net.sf.jasperreports.engine.fill.JRVerticalFiller.&lt;init&gt;(JRVerticalFiller.java:61) net.sf.jasperreports.engine.fill.JRFiller.createFiller(JRFiller.java:153) net.sf.jasperreports.engine.fill.JRFiller.fill(JRFiller.java:55) net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:446) net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:407) net.sf.jasperreports.engine.JasperRunManager.runToPdfStream(JasperRunManager.java:201) net.sf.jasperreports.engine.JasperRunManager.runReportToPdfStream(JasperRunManager.java:720) com.reports.reportGenerator.doGet(reportGenerator.java:54) javax.servlet.http.HttpServlet.service(HttpServlet.java:621) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393) </code></pre> <p>When i run the servlet after that i get following error</p> <pre><code>java.lang.NoClassDefFoundError: Could not initialize class net.sf.jasperreports.engine.util.JRStyledTextParser net.sf.jasperreports.engine.fill.JRBaseFiller.&lt;init&gt;(JRBaseFiller.java:121) net.sf.jasperreports.engine.fill.JRVerticalFiller.&lt;init&gt;(JRVerticalFiller.java:88) net.sf.jasperreports.engine.fill.JRVerticalFiller.&lt;init&gt;(JRVerticalFiller.java:103) net.sf.jasperreports.engine.fill.JRVerticalFiller.&lt;init&gt;(JRVerticalFiller.java:61) net.sf.jasperreports.engine.fill.JRFiller.createFiller(JRFiller.java:153) net.sf.jasperreports.engine.fill.JRFiller.fill(JRFiller.java:55) net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:446) net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:407) net.sf.jasperreports.engine.JasperRunManager.runToPdfStream(JasperRunManager.java:201) net.sf.jasperreports.engine.JasperRunManager.runReportToPdfStream(JasperRunManager.java:720) com.reports.reportGenerator.doGet(reportGenerator.java:54) javax.servlet.http.HttpServlet.service(HttpServlet.java:621) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393) </code></pre> <p>It says java.lang.NoClassDefFoundError. Have I missed some dependencies? My report has no graphs, only fetches data from a database</p>
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    1. COPlease have a look at [http://stackoverflow.com/questions/3628302/jasperreports-noclassdeffounderror-exception-on-net-sf-jasperreports-engine-util][1] [1]: http://stackoverflow.com/questions/3628302/jasperreports-noclassdeffounderror-exception-on-net-sf-jasperreports-engine-util
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      1. USFelix Christy
 

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