我有一个生成Excel文件并以字节[]形式输出的Jasper报告,我希望该文件在浏览器中显示为下载内容,但此刻它只是打印原始代码到浏览器。设置字节[]作为文件下载
代码的相关部分低于,这是从一个AJAX请求开始(页面已经加载):
JasperReport jasperReport;
JasperPrint jasperPrint;
HttpServletResponse response = (HttpServletResponse) context.getExternalContext().getResponse();
byte[] excel = null;
FacesContext facesContext = FacesContext.getCurrentInstance();
try {
ArrayList<SwimDataReport> dataList = getData();
if(dataList!=null){
JRBeanCollectionDataSource dataSource = new JRBeanCollectionDataSource(dataList, false);
jasperReport = JasperCompileManager.compileReport(reportFile.getPath());
jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, dataSource);
JRXlsExporter exporter = new JRXlsExporter();
ByteArrayOutputStream xlsReport = new ByteArrayOutputStream();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, xlsReport);
exporter.exportReport();
excel = xlsReport.toByteArray();
response.reset();
response.setContentType("application/vnd.ms-excel");
response.setHeader("Content-disposition", "attachment; filename=\"Export.xls\"");
xlsReport.close();
OutputStream ouputStream = response.getOutputStream();
ouputStream.write(excel);
ouputStream.close();
facesContext.responseComplete();
this.cleanUp();
}else{
return;
}
} catch (JRException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
任何想法,我要去的地方错了吗?与此类似
感谢您的建议Stefano,我试过了,但它仍然只是在网页上显示原始代码 – DaveB