Excel的批量导入是很常见的功能，这里采用 Jxl实现，数据量或样式要求较高可以采用 poi
框架环境：Spring + SpringMvc（注解实现）
首先导入依赖jar包
<dependency><groupId>net.sourceforge.jexcelapi</groupId><artifactId>jxl</artifactId><version>2.6.10</version></dependency>
前端页面–jsp（enctype必须为"multipart/form-data"）
<%@ taglib prefix="c" uri="/jsp/jstl/core" %><%@ page contentType="text/html;charset=UTF-8" language="java" %><div style="width: 600px;"><form class="form" method="post" data-submit="ajax" enctype="multipart/form-data" action="/hpersonnel/import.do">//<input type="hidden" name="id" value="<%= request.getParameter("id") %>" /> <div class="form-group"> <label class="form-label w100"> </label><label class="form-label ">1、下载模板。<a class="btn btn-default submit-form" href="/template/personnel.xls">下载</a></label></div><div class="form-group"><label class="form-label w100"> </label><label class="form-label ">2、按照模板表头填写内容，请勿修改文件格式</label></div><div class="form-group"><label class="form-label w100"> </label><label class="form-label ">3、<input type="file" name="file" /></label></div> <div class="btns dialog-button"><button class="dialog-btn-yes" type="submit">提交</button><button class="dialog-btn-no" type="button" onclick="app.closeDialog(this)">取消</button></div></form></div>
视图模板
Controller
@ResponseBody@RequestMapping(value = "import")public Object import(MultipartFile file) {if (file.isEmpty()) {return ResultObject.failure("文件为空");}ResultObject result = new ResultObject();//记录集合List<Map> mapList = new ArrayList<Map>();//校验结果boolean reqFlag = true;//回复消息String reqMsg = "";//报错消息数Integer error = 0;//解析文件try {//转换成输入流InputStream is = file.getInputStream();//得到excelWorkbook workbook = Workbook.getWorkbook(is);//得到sheetSheet sheet = workbook.getSheet(0);//得到列数int colsNum = sheet.getColumns();//得到行数int rowsNum = sheet.getRows();if (rowsNum == 1) return ResultObject.failure("没有数据");//单元格Cell cell;//数据校验for (int i = 1; i < rowsNum; i++) {//第一行是标题,所以i从1开始Map<Integer, Object> map = new HashMap<Integer, Object>();for (int j = 0; j < colsNum; j++) {cell = sheet.getCell(j, i);//第一个参数是列.第二个参数是行if (j < 4 && "".equals(cell.getContents())) {//----这里判断必填项（前4列）reqFlag = false;reqMsg += "第" + (i + 1) + "行错误，错误信息：" + "必填项缺漏";reqMsg += "<br>";error++;break;}String cellString = cell.getContents();cellString = cellString.trim();switch (j) {case 1: {//进行校验处理，例如手机号if (!StringUtil.isMobileNo(cellString)) {reqFlag = false;reqMsg += "第" + (i + 1) + "行错误，错误信息：" + "联系电话有误";reqMsg += "<br>";error++;} else {map.put(j, cellString);}break;}case 2: {### break; }case 3: {### break; }//无需校验，归入defaultdefault: {map.put(j, cell.getContents());}}}if (reqFlag) {//校验通过mapList.add(map);}}} catch (IOException e) {e.printStackTrace();} catch (BiffException e) {e.printStackTrace();}//入库try {if (mapList.size() > 0 && reqFlag) {//此处try,catch应优化为事务处理maplist实现全记录成功或失败result.setSuccess("提交成功");} else {if (error > 10) {//设置要显示的错误数int index = StringUtil.getIndex(reqMsg, 10, "<br>");reqMsg = reqMsg.substring(0, index + 4);reqMsg += "未显示错误数：" + (error - 10) + "条";reqMsg += "<br>";}result.setFailure(reqMsg);}} catch (Exception e) {result.setFailure("入库错误，请联系管理员！");e.printStackTrace();}return result;}
