使用插件导入Excel表到数据库

<script type="text/javascript" src="${ctxStatic}/admin/js/Huploadify/jquery.Huploadify.js"></script>

在使用插件之前首先到入js库

$('#excle').Huploadify({'uploader': '${ctx}/meeting/import','fileObjName': 'fileToUpload','fileTypeExts': '*.xlsx; *.xsl;','auto': true,'multi': false,'fileObjName': 'file','fileSizeLimit': 20480 * 60,'showUploadedPercent': true,'showUploadedSize': true,'onUploadSuccess': function (file, data) {
//            var josobj = JSON.parse(data);
//            var url=josobj.src;
//            var fileName=josobj.name;
//            $("#picture_address").val(url);if(data=='2'){layer.msg("导入会议签到表失败",{icon:2});}if(data ==""){layer.msg("有非参会人员签到，请确认信息是否正确!导入失败",{icon:2});}if(data =='1'){layer.msg("导入会议签到表成功",{icon:1});}//window.location.reload();//$('#file_picShow').html(' <span class="picSpan"><img class="picture" height="80px" width="80px" vedioSrc="' + josobj.src + '"  src="${ctxStatic}/Huploadify/fujian.png"></img>' + josobj.name + '</span>');},'onUploadError': function (file, errorCode, errorMsg, errorString) {alert('文件' + file.name + ' 上传错误: ' + errorMsg);},});

将一个div绑定上面的事件，在后台将导入的Excel数据存入磁盘

/*** 导入Excel数据*/
@RequiresPermissions(value = {"meeting:meeting:import", "meetingParticipants:meetingParticipants:export"}, logical = Logical.OR)
@RequestMapping(value = "import", method = RequestMethod.POST)
@ResponseBody
public String importFile(MultipartFile file, RedirectAttributes redirectAttributes, Meeting meeting,Model model,HttpServletRequest request) {String filepath = "";LayFileJsonData data = new LayFileJsonData();// 判断文件是否为空if (!file.isEmpty()) {// 文件保存路径String realPath = "files/";// 转存文件File saveDir = new File(request.getSession().getServletContext().getRealPath(realPath));//如果目录不存在，就创建目录?if(!saveDir.exists()){saveDir.mkdir();}String meetingNo = file.getOriginalFilename().substring(5,19);//根据会议的编号查找会议meeting=meetingService.getMeetingNo(meetingNo);//String type = file.getContentType().substring(file.getContentType().indexOf("/") + 1);if(meeting==null){return "2";}try {file.transferTo(new File(request.getSession().getServletContext().getRealPath("/") + realPath +Md5Util.parseStrToMd5L32(file.getOriginalFilename()+new SimpleDateFormat("yyyy-MM-dd").format(new Date()))));} catch (IOException e) {e.printStackTrace();}filepath = request.getContextPath() + realPath + Md5Util.parseStrToMd5L32(file.getOriginalFilename()+new SimpleDateFormat("yyyy-MM-dd").format(new Date()));data.setName(file.getOriginalFilename());data.setSrc(filepath);}try {InputStream input = new FileInputStream(Global.getUrlPath()+data.getSrc());  //建立输入流//这里导入Excel表的数据//XSSFWorkbook wb = new XSSFWorkbook(file.getInputStream());XSSFWorkbook wb = new XSSFWorkbook(input);XSSFSheet sheet = wb.getSheetAt(0);Integer rowNum = sheet.getLastRowNum();//遍历单元格的每一行for (int i = 1; i <= rowNum; i++) {XSSFRow row = sheet.getRow(i);//获取第i行第一列XSSFCell cel0 = row.getCell(0);//获取第i行第二列XSSFCell cel1 = row.getCell(1);//获取第i行第三列XSSFCell cel2 = row.getCell(2);XSSFCell cel3 = row.getCell(3);XSSFCell cel4 = row.getCell(4);XSSFCell cel5 = row.getCell(5);XSSFCell cel6 = row.getCell(6);XSSFCell cel7 = row.getCell(7);XSSFCell cel8 = row.getCell(8);XSSFCell cel9 = row.getCell(9);XSSFCell cel10 = row.getCell(10);MeetingIn meetingIn = new MeetingIn();//单位电话和名称,如果不为空说明,这是新的单位if (cel0 != null && (!cel0.getStringCellValue().equals(""))) {User user = new User();user.setName(cel0.getStringCellValue());if (cel1 == null) {user.setOfficePhone("");} else {user.setOfficePhone(cel1.getStringCellValue());}user = systemService.getNamneAndPhone(user);if(user !=null){//根据userID会议的ID查找meetingIn.setUserId(user.getId());meetingIn.setMeetingId(meeting.getId());meetingIn.setType("2");MeetingIn meetingIn1 =meetingInService.getMeetingidAndUseridAndType(meetingIn);if (meetingIn1!=null){meetingIn1.setMeetingId(meeting.getId());//根据会议ID和自己的ID查找List<MeetingParticipants> list=meetingInService.getByMeetingidAndMeetingInidAndimport(meetingIn1);if (list.size() != 0){for (MeetingParticipants meetingParticipants:list){String type = cel10.getStringCellValue();//判断签到状态if ("未签到".equals(type)) {meetingParticipants.setType("0");} else if ("已签到".equals(type)) {meetingParticipants.setType("1");} else if ("迟到".equals(type)) {meetingParticipants.setType("2");} else {//如果有请假人要对整个meetingIn更新meetingParticipants.setType("3");meetingIn = meetingInService.getId(meetingIn.getId());meetingIn.setWhetherLeave("1");meetingInService.save(meetingIn);}meetingParticipantsService.save(meetingParticipants);}}else {addMessage(redirectAttributes,"有非参会人员签到，请确认信息是否正确导入失败");//return "redirect:" + Global.getAdminPath() + "/meeting/detail?id="+meeting.getId();return "";}}}else {addMessage(redirectAttributes,"有非参会人员签到，请确认信息是否正确导入失败");//return "redirect:" + Global.getAdminPath() + "/meeting/detail?id="+meeting.getId();return "";}}}input.close();} catch (Exception e) {addMessage(redirectAttributes, "导入会议失败！失败信息：" + e.getMessage());return "2";}//return "redirect:" + Global.getAdminPath() + "/meeting/detail?id="+meeting.getId();return "1";
}

返回的事json数据，这里有两点很重要，一是要对系统做区别，还有对文件进行加密（不是必须的）下面是加密的类

/*** 获取硬盘上的绝对路径*/
public static String getUrlPath(){//linux下String classPath = Global.class.getClassLoader().getResource("/").getPath();String rootPath  = "";if("/".equals(File.separator)){rootPath  = classPath.substring(0,classPath.indexOf("/WEB-INF/classes"));rootPath = rootPath.replace("\\", "/")+"/";}//windows下if("\\".equals(File.separator)){rootPath = classPath.substring(1,classPath.indexOf("/WEB-INF/classes"));rootPath = rootPath.replace("/", "\\")+"\\";}return rootPath;
}

public class Md5Util {/*** @Description: 32位小写MD5*/public static String parseStrToMd5L32(String str) {String reStr = null;try {MessageDigest md5 = MessageDigest.getInstance("MD5");byte[] bytes = md5.digest(str.getBytes());StringBuffer stringBuffer = new StringBuffer();for (byte b : bytes) {int bt = b & 0xff;if (bt < 16) {stringBuffer.append(0);}stringBuffer.append(Integer.toHexString(bt));}reStr = stringBuffer.toString();} catch (NoSuchAlgorithmException e) {e.printStackTrace();}return reStr;}/*** @Description: 32位大写MD5*/public static String parseStrToMd5U32(String str) {String reStr = parseStrToMd5L32(str);if (reStr != null) {reStr = reStr.toUpperCase();}return reStr;}/*** @Description: 16位小写MD5*/public static String parseStrToMd5U16(String str) {String reStr = parseStrToMd5L32(str);if (reStr != null) {reStr = reStr.toUpperCase().substring(8, 24);}return reStr;}/*** @Description: 16位大写MD5*/public static String parseStrToMd5L16(String str) {String reStr = parseStrToMd5L32(str);if (reStr != null) {reStr = reStr.substring(8, 24);}return reStr;}public static String encodePassword(String rawPass) {String saltedPass = mergePasswordAndSalt(rawPass, "PONY", false);MessageDigest messageDigest = getMessageDigest();byte[] digest;try {digest = messageDigest.digest(saltedPass.getBytes("UTF-8"));} catch (UnsupportedEncodingException e) {throw new IllegalStateException("UTF-8 not supported!");}return null;}protected static String mergePasswordAndSalt(String password, Object salt, boolean strict) {if (password == null) {password = "";}if ((strict) && (salt != null) && ((salt.toString().lastIndexOf("{") != -1) || (salt.toString().lastIndexOf("}") != -1))) {throw new IllegalArgumentException("Cannot use { or } in salt.toString()");}if ((salt == null) || ("".equals(salt))) {return password;}return password + "{" + salt.toString() + "}";}protected final static MessageDigest getMessageDigest() {String algorithm = "MD5";try {return MessageDigest.getInstance(algorithm);} catch (NoSuchAlgorithmException e) {throw new IllegalArgumentException("No such algorithm [" + algorithm + "]");}}public boolean isPasswordValid(String encPass, String rawPass) {String pass1 = "" + encPass;String pass2 = encodePassword(rawPass);return pass1.equals(pass2);}public static void main(String[] args) {System.out.println(parseStrToMd5L32("111"));System.out.println(parseStrToMd5U32("111"));System.out.println(encodePassword("111"));}}

这个是区分系统的，这个很重要

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