Streaming JasperReport to Apache Tomcat Server with OutputStream

[RebeccaS.]

Hi,

I created a JasperReport  and saved the .jrxml at <reportLocation>. It was no problem to write a Java program which creates a PDF file from this report.

But now I want to write a Spring Boot Project to stream this report to a Tomcat Server, to show it in the browser.

But the output has the wrong format. It looks like this:

It should have HTML layout. How can I do that?

Another problem that I have is that if the report is to long, it doesn't fit in the outputStream and I get an Error.

This is my SpringBootApplication:

@SpringBootApplication@Controllerpublic class TestProject2Application {    @RequestMapping(method = RequestMethod.GET)    @ResponseBody    public void RepPerformance2(OutputStream outputStream) {        // create a database connection        MyOracleConnection conManager = new MyOracleConnection("jdbc:oracle:thin:@/...");        Connection con = conManager.openConnection(...);        // create the report        reports.createReport(outputStream);        // close database connection        conManager.closeConnection(con);    }    public static void main(String[] args) {        SpringApplication.run(TestProject2Application.class, args);    }}[/code]

This runs my JasperReport:

   private boolean runReport(String reportLocation, HashMap<String, Object> parameter, OutputStream outputStream) {        parameter.put(JRParameter.REPORT_VIRTUALIZER, virtualizer);        try {            JasperReport jasperReport = JasperCompileManager.compileReport(reportLocation);            JasperFillManager.fillReportToStream(jasperReport, outputStream, parameter, con);        } catch (JRException ex) {            System.out.println("JRException");            ex.printStackTrace();            return false;        }        virtualizer.cleanup();        return true;    }[/code]

Thanks for your ideas,

Rebecca