struts2导入、导出 excel

前台：

//前台页面

<form action="/service/wxExportTool/inputExce.action" method="post" enctype="multipart/form-data" id="form2">
                       <input type="file" name="file1" id="file1"/> 
                       <input type="hidden" name="uuid2" id="uuid2" value=""/> 
 </form>
           

//导入excel

function queRen_DR(){
    claseArt();
    coverit();
    var form = new FormData(document.getElementById("form2"));
    $.ajax({
        url:"/service/wxExportTool/inputExce.action",
        type:"post",
        data:form,
        processData:false,
        contentType:false,
        async: false,
        success:function(data){
            uncoverit();
            var flag = data.flag;
            if (flag == '0') {
                $("#file1").val("");
                $("#haved_SL").val("0");
                alert(data.msg);
                var res = data.data;
                var batchid = res.batchid;
                var successCount = res.successCount;
                $("#batchid").val(batchid);
                $("#successCount").html(successCount);
                shows();
            }else if(flag=='3'){
                var batchid = data.data.batchid;
                var htm="<a target=\"_blank\" href=\"/service/wxExportTool/outPuterrorExcel.action?batchid="+batchid+"\">导出失败数据</a>";
                $("#outputFail").html(htm);
                shows();
                alert(data.msg);
            } else{
                alert(data.msg);
                return;
            }
        },
        error:function(e){
            alert("导入出错！");
            uncoverit();
        }
    });
}
           

//转换成excel

Workbook rwb = Workbook.getWorkbook(in);
            Sheet rs=rwb.getSheet();//或者rwb.getSheet(0)
            int clos=rs.getColumns();//得到所有的列
            int rows=rs.getRows();//得到所有的行
            for (int i = ; i < rows; i++) {
                ItvBatchNew itv = new ItvBatchNew();
                for (int j = ; j < clos; j++) {
                    //第一个是列数，第二个是行数
                    //默认最左边编号也算一列 所以这里得j++
                    String username=rs.getCell(j++, i).getContents().trim();//用户名
                    itv.setUsername(username);
                    String identNbr=rs.getCell(j++, i).getContents().trim();//身份证号码
                    itv.setIdentnumber(identNbr);
                    String broadNbr=rs.getCell(j++, i).getContents().trim();//宽带接入号
                    itv.setBoradnumber(broadNbr);
                    String address=rs.getCell(j++, i).getContents().trim();//安装地址
                    itv.setItvaddress(address);
                    String userphone=rs.getCell(j++, i).getContents().trim();//联系电话
                    itv.setUserphone(userphone);
                    String remark=rs.getCell(j++, i).getContents().trim();//备注
                    itv.setRemark(remark);
                    itv.setCreator(creator);
                    itv.setBatchid(batchid);
                }
                }
           

//导出excel
request.setCharacterEncoding("utf-8");
          response.setCharacterEncoding("utf-8");
          response.setContentType("application/vnd.ms-excel");
          OutputStream out = response.getOutputStream();
          //报头用于提供一个推荐的文件名，并强制浏览器显示保存对话框
          //attachment表示以附件方式下载。如果要在页面中打开，则改为 inline
          response.setHeader("Content-Disposition", "attachment; filename="+batchid+new String("失败".getBytes("gbk"), "iso8859-1")+"excel.xls");
          //创建workbook工作薄
          HSSFWorkbook workbook = new HSSFWorkbook();
          //创建工作表
          HSSFSheet sheet = workbook.createSheet("第一页");
          //设置单元格样式
          HSSFCellStyle hssfCellStyle = (HSSFCellStyle) workbook.createCellStyle();
          hssfCellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);//居中显示
          hssfCellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);//纵向居中
        try {
            //创建行
              Row row = sheet.createRow();
              //创建单元格
              Cell cell = row.createCell();
             //设置第一行第一格的值
              cell.setCellValue("用户名");
              //设置单元格的文本居中显示
              cell.setCellStyle(hssfCellStyle);
              Cell cell1 = row.createCell();
              cell1.setCellValue("身份证号");
              cell1.setCellStyle(hssfCellStyle);
              Cell cell2 = row.createCell();
              cell2.setCellValue("宽带接入号");
              cell2.setCellStyle(hssfCellStyle);
              Cell cell3 = row.createCell();
              cell3.setCellValue("安装地址");
              cell3.setCellStyle(hssfCellStyle);
              Cell cell4 = row.createCell();
              cell4.setCellValue("联系电话");
              cell4.setCellStyle(hssfCellStyle);
              Cell cell5 = row.createCell();
              cell5.setCellValue("备注");
              cell5.setCellStyle(hssfCellStyle);
              Cell cell6 = row.createCell();
              cell6.setCellValue("失败原因");
              cell6.setCellStyle(hssfCellStyle);


               for (int i = ; i < list.size(); i++) {
                 //创建行
                   Row rows = sheet.createRow(i+);
                 //创建单元格
                      Cell mapcell = rows.createCell();
                      //设置第一行第一格的值
                      mapcell.setCellValue(list.get(i).get("USERNAME"));
                      //设置单元格的文本居中显示
                      mapcell.setCellStyle(hssfCellStyle);
                      Cell mapcell1 = rows.createCell();
                      mapcell1.setCellValue(list.get(i).get("IDENTNUMBER"));
                      mapcell1.setCellStyle(hssfCellStyle);
                      Cell mapcell2 = rows.createCell();
                      mapcell2.setCellValue(list.get(i).get("BROADNUMBER"));
                      mapcell2.setCellStyle(hssfCellStyle);
                      Cell mapcell3 = rows.createCell();
                      mapcell3.setCellValue(list.get(i).get("ADDRESS"));
                      mapcell3.setCellStyle(hssfCellStyle);
                      Cell mapcell4 = rows.createCell();
                      mapcell4.setCellValue(list.get(i).get("USERPHONE"));
                      mapcell4.setCellStyle(hssfCellStyle);
                      Cell mapcell5 = rows.createCell();
                      mapcell5.setCellValue(list.get(i).get("REMARK"));
                      mapcell5.setCellStyle(hssfCellStyle);
                      Cell mapcell6 = rows.createCell();
                      mapcell6.setCellValue(list.get(i).get("REASON"));
                      mapcell6.setCellStyle(hssfCellStyle);
               }

               workbook.write(out);
//            System.out.println("数据写入成功！");
              out.flush();
              out.close();

        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }