求救jasperreport生成excel中文乱码

Question

iText.jar,iTextAsian.jar我已经下载放到web-inf/lib下了
我使用JasperRunManager.runReportToHtmlFile(business_rpt.getPath(),parameters,conn);
      JasperRunManager.runReportToPdfFile(business_rpt.getPath(),parameters,conn);
都能正常显示,应该不属于各位说的问题；
由于jasperreport中没有runReportToXlsFile故用上面的程序生成xls文件，各位遇到同样问题的大虾再帮忙看看，不胜感激

Answer 1

我使用ireport运行可以正常生成xls文件

Answer 2

终于成功了
换成以下代码就可以了,不过还是莫名其妙,不管了,先把项目做完再说
   JasperPrint jasperPrint =
                      JasperFillManager.fillReport(
                      business_rpt.getPath(),
                      parameters,
                      conn
                      );                                      
      response.setContentType("application/vnd.ms-excel");
JRExporter exporter = new JRXlsExporter();
 
   byte[] bytes;
      ByteArrayOutputStream baos = new ByteArrayOutputStream();
 
      exporter.setParameter(JRExporterParameter.JASPER_PRINT,
              jasperPrint);
      exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, baos);
        exporter.exportReport();
        
        bytes = baos.toByteArray();
        if (bytes != null && bytes.length > 0) 
        {
            response.reset();
            response.setContentType("application/vnd.ms-excel");
            response.setHeader("Content-disposition",
                               "attachment; filename=yourReport.xls");
            response.setContentLength(bytes.length);
            ServletOutputStream ouputStream = response.getOutputStream();
            ouputStream.write(bytes, 0, bytes.length);
            ouputStream.flush();
            ouputStream.close();        }
        conn.close();  
     }
     catch(Exception e){
      throw e;
     }