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File exe_rpt = new File(this.getServletContext().getRealPath("/report/report1.jasper"));
Map parameters = new HashMap();
parameters.put("username", name);
try {
byte[] bytes = JasperRunManager.runReportToPdf(exe_rpt.getPath(),null,conn);
response.setContentType("application/pdf");
response.setContentLength(bytes.length);
ServletOutputStream outStream = response.getOutputStream();
outStream.write(bytes,0,bytes.length);
outStream.flush();
outStream.close();
out.clear();
out = pageContext.pushBody();