EXCEL通过配置导入规则，实现任意格式EXCEL文件解析
2024-06-09 04:43:18
EXCEL文件导入到数据库，是一种常见的文件导入格式。
本文实现的EXCEL文件解析方法，优点是适合任意格式的EXCEL文件，缺点是每一张表单都需要配置对应的导入规则，在字段数量多时，配置导入规则就尴尬了，好在也只需要配置一遍。
先看效果，以下两张图是我测试的EXCEL文件，其中第二张图中，有5个工作表。这两个表单字段也会不定期变动，这就需要重新修改导入规则。（对于字段变动的问题，用到的是表单引擎技术，这里就不进行说明了）
先看导入规则表字段：
| 字段名称 | 中文名称 | 说明 |
| ID | 主键 | |
| BIAODANYUID | 表单域ID | 导入表的字段名称；name，sex |
| BIAODANYUMINGCHEN | 表单域名称 | 导入表的字段中文名；姓名，性别 |
| EXCELLIEHAO | EXCEL列号 | 姓名所在的列，B |
| EXCELHANGHAO | EXCEL行号 | 姓名所在的行，2 |
| SHIFUBITIANJIAOYAN | 是否必填 | 字段必填校验 |
| SHIFUCHONGFUJIAOYAN | 是否唯一 | 字段唯一性校验 |
| SHUJULEIXING | 数据类型 | 日期类型，数值类型，字典类型，图片类型 |
| SHUJUGESHI | 数据格式 | 日期的格式yyyy-MM-dd，数值的格式#.0000 |
下面开始导入EXCEL文件了
1 JSP页面上传文件
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Excel导入</title>
<style type="text/css">
.table td, .table th {border: 1px solid #cad9ea;padding: 0 1em 0;
}.table tr {height: 18px;
}#loading{position:fixed;_position:absolute;top:40%;left:50%;width:120px;height:120px;overflow:hidden;background:url(${root!}/static/img/importExcel/1.gif) no-repeat;z-index:10;display:none;}</style></head>
<body><form id="importForm" method="post" action=""enctype="multipart/form-data"><table width="90%" class="table" style="margin-top: 5px;"><tr><td style="align: center;"><input id="files" name="files" type="file" multiple="multiple" class="file "></td></tr><tr><td style="text-align: center;"><div style="height: 20px;">文件只限于xls,xlsx格式</div><div style="height: 20px;">上传文件最大数量:${excelNumber!}</div><div style="height: 20px;">上传文件总大小:${excelSize!}M</div></td></tr></table></form><div id="loading"></div> <script type='text/javascript'>$(document).ready(function () {$('#loading').hide();//隐藏loading});function submit() {var excelNumber = "${excelNumber!}";var excelSize = "${excelSize!}";var filepath = $("input[name='files']").val();var extStart = filepath.lastIndexOf(".");var ext = filepath.substring(extStart, filepath.length).toUpperCase();var fileCount = document.getElementById("importForm")["files"].files.length;if(fileCount == 0 ){
// window.alert('请选择上传文件！');layer.msg("请选择上传文件！", {icon: 2,time:1500});return false;}if (ext != ".XLS" && ext != ".XLSX") {
// alert("文件只限于xls,xlsx格式");layer.msg("文件只限于xls,xlsx格式", {icon: 2,time:1500});return false;}if (fileCount > excelNumber) {
// window.alert('文件数不能超过'+excelNumber+'个，你选择了' + fileCount + '个');layer.msg("文件数不能超过"+excelNumber+"个，您选择了" + fileCount + "个", {icon: 2,time:1500});return false;}var fileSize = 0;var i = 0;for (i; i < fileCount; i++) {fileSize = fileSize + $("#files")[0].files[i].size;}var size = fileSize / (1024 * 1024);if (size > excelSize) {
// alert("上传的文件大小不能超过"+excelSize+"M！");layer.msg("上传的文件大小不能超过"+excelSize+"M！", {icon: 2,time:1500});return false;}$( '#importForm').attr("action",Power.rootPath + "${url!}"+"?buttonName=确认导入&flag=end" );$("#loading").show();//显示loading$( '#importForm').submit();}</script>
</body>
</html>2 控制层接收文件
@RequestMapping(value = "/uploadFile", method = RequestMethod.POST)public String uploadFile(HttpServletRequest request,HttpServletResponse response, ModelMap map,@RequestParam(value = "files", required = true) MultipartFile[] files) {String appCode = approveConstant.getProperty("app.code");// 过滤用户所能看到的机构String userId = "";try {userId = getCurrentUser().get("ID");} catch (SessionException e1) {e1.printStackTrace();}PubUserOrganizatiion userOrg = userOrganizatiionService.getEntityByUserId(userId);try {String realPath = request.getRealPath("/");Map<String, String> msg = importExcelService.importExcels(files, appCode, userOrg, "10", realPath, true, true, false);net.sf.json.JSONObject jsonObject = net.sf.json.JSONObject.fromObject(msg);setAttr("importMsg",jsonObject);jjgbglImportExcelService.insertImportMsg(jsonObject,getCurrentUser().getStr("ID"),"10");//干部信息10，干部事项报告20JSONObject table = formConnectionService.getModelByTask("10"); // 开启的表代号String formId = table.getString("DaoRuBiaoDanID");this.setAttr("formId", formId);setAttr("year",table.getString("NianDuXuanZe"));setAttr("task","10");} catch (Exception e) {e.printStackTrace();}return this.getIndexView("inspection/cadreInformation/information_index", map);}3 service层解析文件 代码量较大
package com.inspur.inspection.system.service;import java.sql.Connection;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;import com.alibaba.fastjson.JSONObject;
import com.inspur.approval.base.dao.FormDao;
import com.inspur.approval.base.service.DictService;
import com.inspur.approval.base.service.FormConnectionService;
import com.inspur.inspection.system.userOrganization.po.PubUserOrganizatiion;
import com.inspur.mng.core.db.Record;
import com.inspur.punish.business.attachment.servise.EnforceServise;
import com.inspur.service.FormService;
import com.inspur.utils.excel.ImportExcel;@Service("com.inspur.inspection.system.service.ImportExcelService")
public class ImportExcelService {@Autowiredprivate FormConnectionService formConnectionService;@Autowiredprivate EnforceServise enforceservise;@Autowiredprivate FormService formService;@Autowiredprivate FormDao formDao;@Autowiredprivate DictService dictService;@Autowiredprivate Properties approveConstant;/*** 导入EXCEL* @param files 文件* @param appCode * @param userOrg* @param task 开启的表单编号* @param realPath requset的真实路径* @param savePic 是否保存照片* @param ShiFuDiaoChu 是否给ShiFuDiaoChu隐藏域设置默认值* @param NianFen 是否给NianFen隐藏域设置默认值* @return* @throws Exception*/public Map<String, String> importExcels( MultipartFile[] files, String appCode, PubUserOrganizatiion userOrg , String task ,String realPath, boolean savePic,boolean ShiFuDiaoChu , boolean NianFen)throws Exception {Map<String, String> importFeedback = new HashMap<String, String>();// 导入结果反馈信息int total = files.length; // excel文件总数int success = 0;// 导入成功数int fail = files.length;// 导入失败数String msg = "";//导入失败信息msg = fileCheck(files); //检查文件数量，大小if (msg != null && (!msg.equals(""))) {getImportFeedbackMap(importFeedback, total, success, fail, msg);return importFeedback;}JSONObject table = formConnectionService.getModelByTask(task); // 开启的表代号String formId = "";String year = ""; //年份String formDataId ="";if (table != null) {formId = table.getString("DaoRuBiaoDanID"); // 导入模板IDyear = table.getString("NianDuXuanZe"); // 年份formDataId = table.getString("formDataId");// 表单数据ID}else{if(task.equals("20")){msg = "[{'result':'模板对照配置异常','fileName':'模板对照配置异常'}]";}else{msg = "[{'result':'模板对照配置异常','fileName':'模板对照配置异常'}]";}getImportFeedbackMap(importFeedback, total, success, fail, msg);return importFeedback;}fail = 0;List<Map<String, String>> failList = new ArrayList<Map<String, String>>();// 失败原因之多个文件for (MultipartFile file : files) {boolean flag = true; // 数据校验标志Map<String, String> fileFailMsg = new HashMap<String, String>();// 失败原因之文件Map<String, String> resultMsg = new HashMap<String, String>();// 失败原因之表单域String excelName = file.getOriginalFilename();ImportExcel excel = new ImportExcel(excelName,file.getInputStream(), 0, 0);Workbook wb = excel.getWb();Sheet sheet = null;Map<String, String> map = new HashMap<String, String>();// 数据mapList<String> numList = queryRuleSheetNum(formDataId);//工作表sheet编号List<Record> list = new ArrayList<Record>();String picName ="";if(savePic){try{picName = savePic(realPath, wb);// 保存照片}catch (Exception e){flag = false;resultMsg.put("个人一寸照片", "导入异常");}}for (String num : numList) {list = queryRule(formDataId,num);// 导入规则try{sheet = wb.getSheetAt(Integer.valueOf(num)-1);}catch(IllegalArgumentException e){resultMsg.put("文件读取异常", "工作表数量不匹配");flag = false;}for (Record record : list) {String biaoDanYuId = record.getStr("BIAODANYUID"); // 表单域IDString biaoDanYuMingChen = record.getStr("BIAODANYUMINGCHEN");// 表单域名称String columnString = record.getStr("EXCELLIEHAO");// EXCEL列号String rowString = record.getStr("EXCELHANGHAO");// EXCEL行号String isRequired = record.getStr("SHIFUBITIANJIAOYAN");// 是否必填String isUnique = record.getStr("SHIFUCHONGFUJIAOYAN");// 是否唯一String shuJuGeShi = record.getStr("SHUJUGESHI");// 数据格式String shuJuLeiXing = record.getStr("SHUJULEIXING");// 数据类型if ((!biaoDanYuId.equals("ShiFuDiaoChu"))&& (!biaoDanYuId.equals("NianFen"))) { //过滤隐藏域int column = ImportExcel.columnFormat(columnString);int row = ImportExcel.rowFormat(rowString);String cellValue = ImportExcel.getCellValue(sheet, row, column,shuJuLeiXing,shuJuGeShi);String value = getValueFromDic(formId, biaoDanYuId, cellValue,appCode);if(biaoDanYuId.equals("SuoShuJiGou")){//所属机构，导入权限设置boolean power = false ;if (userOrg != null && userOrg.getOrganization() != null&& !"".equals(userOrg.getOrganization())) {String[] params = userOrg.getOrganization().split(",");for (String s : params) {if(s.equals(value)){power = true;}}} if(!power){resultMsg.put(biaoDanYuMingChen, "未拥有该机构数据导入权限");flag = false;}}if ("1".equals(isRequired)) {// 必填校验if (!biaoDanYuId.equals("GeRenYiCunZhaoPian")) {if (value.trim().equals("") || value == null) {resultMsg.put(biaoDanYuMingChen, "必填项缺失");flag = false;}}}if ("1".equals(isUnique)) {// 唯一校验boolean b = isUniqueMethod(formId, biaoDanYuId, value , task , year);if (b) {resultMsg.put(biaoDanYuMingChen, "记录重复");flag = false;}}if (biaoDanYuId.equals("GeRenYiCunZhaoPian")) {if ("1".equals(isRequired)) {// 必填校验if(picName==null||picName.trim().equals("")){resultMsg.put(biaoDanYuMingChen, "必填项缺失");flag = false;}else{map.put(biaoDanYuId, picName);}}else{map.put(biaoDanYuId, picName);}} else{map.put(biaoDanYuId, value);}}}}if(ShiFuDiaoChu){map.put("ShiFuDiaoChu", "20");// 是否调出隐藏域赋值}if(NianFen){map.put("NianFen", year );// 年份}net.sf.json.JSONObject formData = net.sf.json.JSONObject.fromObject(map);JSONObject formData1 = JSONObject.parseObject(formData.toString());if (flag) {JSONObject json = formService.saveFormData(appCode, null,formId, formData1);String state = json.getString("state");if ("200".equals(state)) {success++;} else {flag = false;fail++;resultMsg.put("系统异常", "写入数据库失败");}} else {fail++;}if (!flag) {fileFailMsg.put("fileName", excelName);net.sf.json.JSONObject jsonObject = net.sf.json.JSONObject.fromObject(resultMsg);fileFailMsg.put("result",jsonObject.toString().replaceAll("\"", "").replaceAll("\\{", "").replaceAll("\\}", "") );failList.add(fileFailMsg);}}net.sf.json.JSONArray jsonObject = net.sf.json.JSONArray.fromObject(failList);msg = jsonObject.toString().replaceAll("\"", "'");getImportFeedbackMap(importFeedback, total, success, fail, msg);return importFeedback;}/*** 封装反馈信息Map* @param importFeedback* @param total* @param success* @param fail* @param msg*/public void getImportFeedbackMap(Map<String, String> importFeedback , int total , int success , int fail , String msg){importFeedback.put("total", String.valueOf(total));importFeedback.put("success", String.valueOf(success));importFeedback.put("fail", String.valueOf(fail));importFeedback.put("msg", msg);}/*** 校验文件数量和大小* * @param files* @return*/public String fileCheck(MultipartFile[] files) {String msg = "" ; //失败信息String excelNumber = approveConstant.getProperty("excel.number");String excelSize = approveConstant.getProperty("excel.size");// 文件数量校验if (files.length == 0) {msg = "文件数量为空";return msg;}if (files.length > Integer.valueOf(excelNumber)) {msg ="文件数量超过" + excelNumber + "个";return msg;}// 文件大小校验long size = Long.valueOf(excelSize) * 1024 * 1024;long fileSize = 0L;for (MultipartFile multipartFile : files) {fileSize = fileSize + multipartFile.getSize();}if (fileSize == 0) {msg ="文件大小为0";return msg;}if (fileSize > size) {msg ="文件大小为超过了" + excelSize + "M";return msg;}return msg;}/*** 获取导入规则 工作表sheet的编号种类* * @param formDataId* @return* @throws SQLException*/public List<String> queryRuleSheetNum(String formDataId) throws SQLException {StringBuffer sql = new StringBuffer();sql.append(" SELECT DISTINCT ( GONGZUOBIAOBIANHAO ) ");sql.append(" FROM DAORUGUIZE ");sql.append(" WHERE ");sql.append(" MOBANDUIZHAOID = " + formDataId);sql.append(" ORDER BY GONGZUOBIAOBIANHAO ASC ");Object[] paramArrayOfObject = {};Connection connection = null;List<String> numList = new ArrayList<String>();try {connection = formConnectionService.getDataSource().getConnection();List<Record> list = formDao.getRecordList(connection,sql.toString(), paramArrayOfObject);for (Record record : list) {String num = record.getStr("GONGZUOBIAOBIANHAO");numList.add(num);}} catch (Exception e) {e.printStackTrace();} finally {if (connection != null) {connection.close();}}return numList;}/*** 获取导入规则列表* * @param formDataId* @param num 工作表 sheet 编号* @return* @throws SQLException*/public List<Record> queryRule(String formDataId , String num) throws SQLException {StringBuffer sql = new StringBuffer();sql.append(" SELECT * ");sql.append(" FROM DAORUGUIZE ");sql.append(" where ");sql.append(" MOBANDUIZHAOID = " + formDataId);sql.append(" AND GongZuoBiaoBianHao = " + num );sql.append(" ORDER BY CAST( PAIXUHAO AS INTEGER ) ASC");Object[] paramArrayOfObject = {};Connection connection = null;try {connection = formConnectionService.getDataSource().getConnection();List<Record> list = formDao.getRecordList(connection,sql.toString(), paramArrayOfObject);return list;} catch (Exception e) {e.printStackTrace();} finally {if (connection != null) {connection.close();}}return null;}/*** 根据字典获取值* * @param formId* 表单ID* @param biaoDanYuId* 表单域ID* @param cellValue* EXCEL单元格值* @param appCode* @return*/public String getValueFromDic(String formId, String biaoDanYuId,String cellValue, String appCode) {String value = "";Map<String, String> dictMap = new HashMap<String, String>();try {dictMap = formConnectionService.getDictCodes(formId);// 表单字典} catch (SQLException e) {e.printStackTrace();}if (dictMap != null && dictMap.size() != 0) {String code = dictMap.get(biaoDanYuId);List<Map<String, Object>> dicList = dictService.getListByDictCode(code, appCode);if (dicList.size() > 0) {for (Map<String, Object> map2 : dicList) {String name = (String) map2.get("NAME");if (name.equals(cellValue.trim())) {value = (String) map2.get("CODE");break;}}} else {value = cellValue;}}return value;}/*** 上传照片至网盘* * @param realPath* @param wb* @return* @throws Exception*/public String savePic(String realPath, Workbook wb) throws Exception{String filePath = ImportExcel.saveTempPic(realPath, wb); // 保存图片至临时目录String ext = "";String docid = "";if (filePath != null && !"".equals(filePath.trim())) {// filePath不为空，图片存在,将图片上传至网盘ext = filePath.substring(filePath.lastIndexOf(".") + 1);net.sf.json.JSONObject obj = enforceservise.fileUpload(filePath); // 上传至网盘ImportExcel.delTempPic(filePath);// 删除临时图片docid = obj.get("docid").toString();// 保存成功时返回的文件Id}String picName = docid + "." + ext;return picName;}/*** 唯一性校验* * @param formId* 表单Id* @param biaoDanYuId* 表单域Id* @param value* 需要校验的值* @param task* 表单代号* @return* @throws SQLException*/public boolean isUniqueMethod(String formId, String biaoDanYuId,String value , String task , String year) throws SQLException {StringBuffer sql = new StringBuffer("select " + biaoDanYuId+ " from " + formId + " where " + biaoDanYuId + " = '"+ value + "'");if(task.equals("20")){sql.append(" and NIANFEN = '" + year + "'");}Object[] paramArrayOfObject = {};Connection connection = null;try {connection = formConnectionService.getDataSource().getConnection();List<Record> list = formDao.getRecordList(connection,sql.toString(), paramArrayOfObject);if (list != null && list.size() > 0) {return true;}} catch (Exception e) {e.printStackTrace();} finally {if (connection != null) {connection.close();}}return false;}}
4 EXCEL解析通用工具类
package com.inspur.utils.excel;import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.UUID;import org.apache.commons.lang3.StringUtils;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.DateUtil;
import org.apache.poi.ss.usermodel.PictureData;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;/*** 导入Excel文件（支持“XLS”和“XLSX”格式）* * @author JiangP* @version 2017-03-20*/
public class ImportExcel {/*** 工作薄对象*/private Workbook wb;/*** 工作表对象*/private Sheet sheet;/*** 标题行号*/private int headerNum;/*** 构造函数* * @param path* 导入文件对象* @param headerNum* 标题行号，数据行号=标题行号+1* @param sheetIndex* 工作表编号* @throws InvalidFormatException* @throws IOException*/public ImportExcel(String fileName, InputStream is, int headerNum,int sheetIndex) throws InvalidFormatException, IOException {if (StringUtils.isBlank(fileName)) {throw new RuntimeException("导入文档为空!");} else if (fileName.toLowerCase().endsWith("xls")) {this.wb = new HSSFWorkbook(is);} else if (fileName.toLowerCase().endsWith("xlsx")) {this.wb = new XSSFWorkbook(is);} else {throw new RuntimeException("文档格式不正确!");}if (this.wb.getNumberOfSheets() < sheetIndex) {throw new RuntimeException("文档中没有工作表!");}this.sheet = this.wb.getSheetAt(sheetIndex);this.headerNum = headerNum;}/*** 获取行对象* * @param rownum* @return*/public Row getRow(int rownum) {return this.sheet.getRow(rownum);}/*** 获取数据行号* * @return*/public int getDataRowNum() {return headerNum + 1;}public Workbook getWb() {return wb;}public void setWb(Workbook wb) {this.wb = wb;}/*** 获取最后一个数据行号* * @return*/public int getLastDataRowNum() {if (headerNum == 0) {return this.sheet.getLastRowNum() + headerNum + 1;}return this.sheet.getLastRowNum() + headerNum;}/*** 获取最后一个列号* * @return*/public int getLastCellNum() {return this.getRow(headerNum).getLastCellNum();}/*** 判断指定的单元格是否是合并单元格* * @param sheet* @param row* 行下标* @param column* 列下标* @return*/public static boolean isMergedRegion(Sheet sheet, int row, int column) {int sheetMergeCount = sheet.getNumMergedRegions();for (int i = 0; i < sheetMergeCount; i++) {CellRangeAddress range = sheet.getMergedRegion(i);int firstColumn = range.getFirstColumn();int lastColumn = range.getLastColumn();int firstRow = range.getFirstRow();int lastRow = range.getLastRow();if (row >= firstRow && row <= lastRow) {if (column >= firstColumn && column <= lastColumn) {return true;}}}return false;}/*** 获取合并单元格的值* * @param sheet* @param row* @param column* @return*/public static String getMergedRegionValue(Sheet sheet, int row, int column,String shuJuLeiXing,String shuJuGeShi) {int sheetMergeCount = sheet.getNumMergedRegions();for (int i = 0; i < sheetMergeCount; i++) {CellRangeAddress ca = sheet.getMergedRegion(i);int firstColumn = ca.getFirstColumn();int lastColumn = ca.getLastColumn();int firstRow = ca.getFirstRow();int lastRow = ca.getLastRow();if (row >= firstRow && row <= lastRow) {if (column >= firstColumn && column <= lastColumn) {Row fRow = sheet.getRow(firstRow);Cell fCell = fRow.getCell(firstColumn);return getCellValue(fCell,shuJuLeiXing, shuJuGeShi);}}}return null;}/*** 获取非合并单元格的值* * @param sheet* @param row* @param column* @return*/public static String getRichStringCellValue(Sheet sheet, int row,int column,String shuJuLeiXing , String shuJuGeShi) {Row sheetRow = sheet.getRow(row);String cellValue = "";if(sheetRow!=null){cellValue = getCellValue(sheetRow.getCell(column),shuJuLeiXing, shuJuGeShi);}return cellValue;}/*** 获取单元格的值* * @param sheet* @param row* @param column* @return*/public static String getCellValue(Sheet sheet, int row, int column,String shuJuLeiXing,String shuJuGeShi) {String cellValue = "";boolean b = isMergedRegion(sheet, row, column);if (b) {cellValue = getMergedRegionValue(sheet, row, column,shuJuLeiXing, shuJuGeShi);} else {cellValue = getRichStringCellValue(sheet, row, column,shuJuLeiXing, shuJuGeShi);}return cellValue;}/*** 获取单元格的值* * @param cell* @return*/public static String getCellValue(Cell cell,String shuJuLeiXing, String shuJuGeShi) {if (cell == null)return "";if (cell.getCellType() == Cell.CELL_TYPE_STRING) {return cell.getStringCellValue();} else if (cell.getCellType() == Cell.CELL_TYPE_BOOLEAN) {return String.valueOf(cell.getBooleanCellValue());} else if (cell.getCellType() == Cell.CELL_TYPE_FORMULA) {return cell.getCellFormula();} else if (cell.getCellType() == Cell.CELL_TYPE_NUMERIC) {try{if (shuJuLeiXing!=null && shuJuLeiXing.trim().equals("30")) {DecimalFormat df=new DecimalFormat(shuJuGeShi); //数值类型String cellValue = df.format(cell.getNumericCellValue());return cellValue;} else if(shuJuLeiXing!=null && shuJuLeiXing.trim().equals("20")) {SimpleDateFormat dateformat = new SimpleDateFormat(shuJuGeShi);Date dt = HSSFDateUtil.getJavaDate(cell.getNumericCellValue());// 获取成DATE类型String cellValue = dateformat.format(dt);return cellValue;}}catch(Exception e){e.printStackTrace();}}return "";}public static boolean isCellDateFormatted(Cell cell) {if (cell == null)return false;boolean bDate = false;double d = cell.getNumericCellValue();if (DateUtil.isValidExcelDate(d)) {CellStyle style = cell.getCellStyle();if (style == null)return false;int i = style.getDataFormat();String f = style.getDataFormatString();f = f.replaceAll("[\"|\']","").replaceAll("[年|月|日|时|分|秒|毫秒|微秒]", ""); bDate = DateUtil.isADateFormat(i, f);}return bDate;}/*** 行号转换* * @param rowString* @return*/public static int rowFormat(String rowString) throws Exception {try {int row = Integer.valueOf(rowString.trim());row = row - 1;return row;} catch (NumberFormatException exception) {throw new Exception("行号转换异常!");}}/*** 列号转换* * @param columString* @return*/public static int columnFormat(String columString) throws Exception {try {char[] c = columString.trim().toUpperCase().toCharArray();int colum = 0;int length = c.length;for (int i = 0; i < c.length; i++) {length = length - i;int charNum = (int) c[i];colum = colum + (charNum - 64)* ((int) Math.pow(26, length - 1));}colum = colum - 1;return colum;} catch (Exception e) {throw new Exception("列号转换异常!");}}public static String saveTempPic(String realPath,Workbook workbook) throws Exception {@SuppressWarnings("unchecked")List<PictureData> picList = (List<PictureData>) workbook.getAllPictures();// 获取工作表中所有图片if (picList.size() == 0) {return null;}if (picList.size() > 1) {throw new Exception("工作表中的照片超过一张!");}PictureData pic = picList.get(0); // 一张图片的情况下// 将此图片保存到临时目录byte[] buf = pic.getData();String ext = pic.suggestFileExtension();String fileName = UUID.randomUUID() + "." + ext;String dir = realPath + "assets\\data\\"; // 临时文件路径String filePath = dir + File.separator + fileName; // 临时存放路径BufferedOutputStream bos = null;FileOutputStream fos = null;File file = null;try {File directory = new File(dir);if (!directory.exists()) {// 创建目录boolean result = directory.mkdirs();if (!result) {throw new Exception("创建临时目录失败");}}file = new File(filePath);fos = new FileOutputStream(file);bos = new BufferedOutputStream(fos);bos.write(buf);} catch (Exception e) {e.printStackTrace();} finally {if (bos != null) {try {bos.close();} catch (IOException e) {e.printStackTrace();}}if (fos != null) {try {fos.close();} catch (IOException e) {e.printStackTrace();}}}return filePath;}public static void delTempPic(String filePath) throws Exception {File tempFile = new File(filePath);if (tempFile.exists()) {boolean result = tempFile.delete();if (!result) {throw new Exception("删除临时图片失败！");}}}}
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