我试图加载我创建的碧玉报告（.jrxml），我将报告命名为“JREmp1.xml”。但我得到了这个错误
HTTP状态500 -请求处理失败;nested exception is net.sf.jasperreports.engine.JRException：java.io.FileNotFoundException:D：\printpdf.metadata.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\JasperExample\jasper\JREmp1.jrxml（系统找不到指定的路径）”
如何得到确切的位置？下面是我的JREmp1.xml文件位置：

下面是我的控制器类中的代码：

@RequestMapping(value = "/generateReport", method = RequestMethod.POST)
public String generateReport(
        @Valid @ModelAttribute("jasperInputForm") JasperInputForm jasperInputForm,
        BindingResult result, Model model, HttpServletRequest request,
        HttpServletResponse response) throws JRException, IOException,
        NamingException {

    if (result.hasErrors()) {
        System.out.println("validation error occured in jasper input form");
        return "loadJasper";

    }

    String reportFileName = "JREmp1";
    JasperReportDAO jrdao = new JasperReportDAO();

    Connection conn = null;

    try {
        conn = jrdao.getConnection();

        String rptFormat = jasperInputForm.getRptFmt();
        String noy = jasperInputForm.getNoofYears();

        System.out.println("rpt format " + rptFormat);
        System.out.println("no of years " + noy);

        HashMap<String, Object> hmParams = new HashMap<String, Object>();

        hmParams.put("noy", new Integer(noy));

        hmParams.put("Title", "Employees working more than " + noy
                + " Years");

        JasperReport jasperReport = jrdao.getCompiledFile(reportFileName,
                request);

        if (rptFormat.equalsIgnoreCase("html")) {
            JasperPrint jasperPrint = JasperFillManager.fillReport(
                    jasperReport, hmParams, conn);
            jrdao.generateReportHtml(jasperPrint, request, response); // For
            // HTML
            // report
        }
        else if (rptFormat.equalsIgnoreCase("pdf")) {
            jrdao.generateReportPDF(response, hmParams, jasperReport, conn); // For
            // PDF
            // report
        }
    } catch (SQLException sqlExp) {
        System.out.println("Exception::" + sqlExp.toString());
    } finally {
        if (conn != null) {
            try {
                conn.close();
                conn = null;
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }
    return null;
}

下面是我的JasperReportDAO类中的代码：

public JasperReport getCompiledFile(String fileName, HttpServletRequest request) throws JRException {
    System.out.println("path " + request.getSession().getServletContext().getRealPath("/jasper/" + fileName + ".jasper"));
    File reportFile = new File( request.getSession().getServletContext().getRealPath("/jasper/" + fileName + ".jasper"));
    // If compiled file is not found, then compile XML template
    if (!reportFile.exists()) {
        JasperCompileManager.compileReportToFile(request.getSession().getServletContext().getRealPath("/jasper/" + fileName + ".jrxml"),request.getSession().getServletContext().getRealPath("/jasper/" + fileName + ".jasper"));
    }
    JasperReport jasperReport = (JasperReport) JRLoader.loadObjectFromFile(reportFile.getPath());
    return jasperReport;
}

public void generateReportHtml( JasperPrint jasperPrint, HttpServletRequest req, HttpServletResponse resp) throws IOException, JRException {
    HtmlExporter exporter=new HtmlExporter();
    List<JasperPrint> jasperPrintList = new ArrayList<JasperPrint>();
    jasperPrintList.add(jasperPrint);
    exporter.setExporterInput(SimpleExporterInput.getInstance(jasperPrintList));
    exporter.setExporterOutput( new SimpleHtmlExporterOutput(resp.getWriter()));
    SimpleHtmlReportConfiguration configuration =new SimpleHtmlReportConfiguration();
    exporter.setConfiguration(configuration);
    exporter.exportReport();

}

public void generateReportPDF (HttpServletResponse resp, Map parameters, JasperReport jasperReport, Connection conn)throws JRException, NamingException, SQLException, IOException {
    byte[] bytes = null;
    bytes = JasperRunManager.runReportToPdf(jasperReport,parameters,conn);
    resp.reset();
    resp.resetBuffer();
    resp.setContentType("application/pdf");
    resp.setContentLength(bytes.length);
    ServletOutputStream ouputStream = resp.getOutputStream();
    ouputStream.write(bytes, 0, bytes.length);
    ouputStream.flush();
    ouputStream.close();
}

下面是我的JasperInputForm类：

public class JasperInputForm {

    @NotEmpty
    private String noofYears;
    private String rptFmt="Html";

    public String getRptFmt() {
        return rptFmt;
    }

    public void setRptFmt(String rptFmt) {
        this.rptFmt = rptFmt;
    }

    public String getNoofYears() {
        return noofYears;
    }

    public void setNoofYears(String noofYears) {
        this.noofYears = noofYears;
    }

}

如何正确获取JREmp1.jrxml文件位置？我为Spring MVC应用程序开发此报表
更新：这是我用@Wilson answer更新后的完整函数代码（我用@Wilson说的第二个选项）：这个函数在JasperReportDAO中：

public JasperReport getCompiledFile(String fileName, HttpServletRequest request) throws JRException, MalformedURLException, URISyntaxException {
    System.out.println("path " + request.getSession().getServletContext().getRealPath("/jasper/" + fileName + ".jasper"));
    //File reportFile = new File( request.getSession().getServletContext().getRealPath("/jasper/" + fileName + ".jasper"));
    URL resourceUrl = request.getSession().getServletContext().getResource("/WEB-INF/jasper/" + fileName + ".jrxml");
    File reportFile = new File(resourceUrl.toURI());

    // If compiled file is not found, then compile XML template
    if (!reportFile.exists()) {
               JasperCompileManager.compileReportToFile(request.getSession().getServletContext().getRealPath("/jasper/" + fileName + ".jrxml"),request.getSession().getServletContext().getRealPath("/jasper/" + fileName + ".jasper"));
        }
        JasperReport jasperReport = (JasperReport) JRLoader.loadObjectFromFile(reportFile.getPath());
       return jasperReport;
}

我得到了这个错误
HTTP状态500 -请求处理失败;嵌套异常为java.lang.IllegalArgumentException：URI方案不是“文件”
如何解决这个问题？