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  • 把日志从数据库导出到Excel表格中(poi)

    前台页面

    1 <div class="padding border-bottom">
    2             <a href="download" class="button border-blue"
    3             >下载</a>
    4             </div>
    View Code

    后台代码

     1     @RequestMapping("download")
     2     
     3     public void download(HttpServletResponse resp,HttpServletRequest req) throws IOException{
     4         try {
     5         req.setCharacterEncoding("UTF-8");
     6         resp.setContentType("text/html;charset=UTF-8");
     7         String outputFile="F:\outFile\outFile.xls"; 
     8         HSSFWorkbook workbook = new HSSFWorkbook();
     9         HSSFSheet sheet = workbook.createSheet();
    10         workbook.setSheetName(0, "demo");
    11         HSSFRow row = sheet.createRow((int)0);
    12         HSSFCellStyle style = workbook.createCellStyle();
    13         style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
    14         String [] excelHeader = {"日志编号","操作人","操作内容","时间"};
    15         for (int i = 0; i < excelHeader.length; i++) {
    16             HSSFCell cell = row.createCell(i);
    17             cell.setCellValue(excelHeader[i]);
    18             cell.setCellStyle(style);
    19 //            sheet.autoSizeColumn(i);
    20         }
    21         List<Log> logs = logService.selectLogs();
    22         for (int i = 0; i < logs.size(); i++) {
    23             Log log = logs.get(i);
    24             HSSFRow hssfRow = sheet.createRow(i+1);
    25             hssfRow.createCell(0).setCellValue(log.getId());
    26             hssfRow.createCell(1).setCellValue(log.getUserName());
    27             hssfRow.createCell(2).setCellValue(log.getMethod());
    28             hssfRow.createCell(3).setCellValue(log.getTime());
    29             sheet.autoSizeColumn(i);
    30         }
    31         
    32             FileOutputStream fos = new FileOutputStream(outputFile);
    33             workbook.write(fos);
    34             fos.close();
    35         } catch (FileNotFoundException e) {
    36             // TODO Auto-generated catch block
    37             e.printStackTrace();
    38         } catch (IOException e) {
    39             // TODO Auto-generated catch block
    40             e.printStackTrace();
    41         }
    42         resp.getWriter().print("导出日志成功!");
    43     }
    View Code

    截图

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  • 原文地址:https://www.cnblogs.com/xaoco/p/9121464.html
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