Without the stacktrace or error message, I'd say you are have Google App Engine enabled. GAE does not allow you to use databases or open socket connections. Try disabling GAE, its a preference in Eclipse.
--Sri On 7 May 2010 23:46, bhargava <[email protected]> wrote: > Hey Guys, > I have integrated Jasper Reports on my netbeans platform and i am able > to generate reports using the following code. > > Map<String, Object> params = new HashMap<String, Object>(); > Connection conn = > DriverManager.getConnection("databaseUrl", "userid","password"); > JasperReport jasperReport = > JasperCompileManager.compileReport(reportSource); > JasperPrint jasperPrint = > JasperFillManager.fillReport(jasperReport, params, conn); > JasperExportManager.exportReportToHtmlFile(jasperPrint, > reportDest); > JasperViewer.viewReport(jasperPrint); > > This stuff works perfect. > > But not i am trying to integrate Jasper with GWT.I have my server as > glass fish server. > > I am getting the Connection object using the followind code. > > public static Connection getConnection() { > > try { > String JNDI = "JNDI name"; > InitialContext initCtx = new InitialContext(); > javax.sql.DataSource ds = (javax.sql.DataSource) > initCtx.lookup(JNDI); > Connection conn = (Connection) ds.getConnection(); > return conn; > } catch (Exception ex) { > ex.printStackTrace(); > } > return null; > } > > and then > > Map<String, Object> params = new HashMap<String, Object>(); > JasperReport jasperReport = > JasperCompileManager.compileReport(reportSource); > JasperPrint jasperPrint = > JasperFillManager.fillReport(jasperReport, params, getConnection()); > JasperExportManager.exportReportToHtmlFile(jasperPrint, > reportDest); > JasperViewer.viewReport(jasperPrint); > > but i always get Error.I am implementing this on Server.I am having > RPC calls to get this method to work when a button is clicked. > > Can you please help me how to work on this.(That is to integrate > Jasper reports with GWT). > > I would highly appreciate any explanation with some code as i am just > a beginner. > > Thanks > > -- > You received this message because you are subscribed to the Google Groups > "Google Web Toolkit" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-web-toolkit%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-web-toolkit?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
