使用IE10中不工作的Java导出到excel

Question

我在IE10中打开excel表格时遇到问题。在我的项目中，我将在选择特定部门后生成一份报告，当我单击“打开”打开报告时，它将以excel格式打开，名称为ConstraintReport。xls。当我点击另一个部门并给出生成报告时，它应该以ConstarintReport（1）的名义打开。xls。但它会抛出一个错误，声明“无法打开两个同名文件”。能做些什么

         if(mode != null && mode.equalsIgnoreCase(TLOConstants.REPORT_CONTROL)){
        List controlList = getReportService().getControlReportList(reportsVO);  
        if(controlList.size()!=0){
            resultArray1 = controlReportFormatList(controlList); 
            byteArrayStream = WorkbookUtil.generateControlPlanReport(resultArray1);
            excelSheet = TLOConstants.CONTROL_REPORT;
            openExcel = true;
        }
    }

  if(openExcel==true){
        response.setHeader(TLOConstants.CACHE_CTRL, TLOConstants.PUBLIC);
        response.setHeader(TLOConstants.PRAGMA, TLOConstants.PUBLIC);
        response.setHeader(TLOConstants.EXPIRES,TLOConstants.ZERO);
        response.setHeader(TLOConstants.CONTENT_DISPOSITION, TLOConstants.ATTACH_FILE_NAME +               excelSheet + ".xls\";");
        response.setContentType(TLOConstants.APPLICATION_VNDMS_XLS);
        if (byteArrayStream != null) {
            response.getOutputStream().write(byteArrayStream.toByteArray());
        }
        response.getOutputStream().flush();
        byteArrayStream.close();

        logMethodExit(TLOConstants.ON_SUBMIT);
        return null;