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- package com.steerinfo.dil.util;
- import org.apache.commons.lang3.StringUtils;
- import org.apache.poi.hssf.usermodel.HSSFCell;
- import org.apache.poi.hssf.usermodel.HSSFDataFormat;
- import org.apache.poi.hssf.usermodel.HSSFDateUtil;
- import org.apache.poi.hssf.usermodel.HSSFWorkbook;
- import org.apache.poi.ss.usermodel.*;
- import org.apache.poi.xssf.usermodel.XSSFWorkbook;
- import org.apache.tomcat.util.http.fileupload.FileItem;
- import org.apache.tomcat.util.http.fileupload.FileItemFactory;
- import org.apache.tomcat.util.http.fileupload.disk.DiskFileItemFactory;
- import org.springframework.web.multipart.MultipartFile;
- import java.io.*;
- import java.text.DecimalFormat;
- import java.text.NumberFormat;
- import java.text.SimpleDateFormat;
- import java.util.*;
- /**
- * @Author fubo
- * @Description excel导入
- * @Date 2020/6/10 8:46
- **/
- public class ExcelToolUtils {
- /**
- * MultipartFile转 FileItem 并删除本地临时文件
- **/
- public static FileItem MultipartFileItem(MultipartFile file) throws Exception {
- File files = multipartFileToFile(file);
- FileItem fielitem = createFileItem(files, files.getName());
- delteTempFile(files);
- return fielitem;
- }
- /*
- 创建FileItem
- */
- public static FileItem createFileItem(File file, String fieldName) {
- FileItemFactory factory = new DiskFileItemFactory(16, null);
- FileItem item = factory.createItem(fieldName, "text/plain", true, file.getName());
- int bytesRead = 0;
- byte[] buffer = new byte[8192];
- try {
- FileInputStream fis = new FileInputStream(file);
- OutputStream os = item.getOutputStream();
- while ((bytesRead = fis.read(buffer, 0, 8192)) != -1) {
- os.write(buffer, 0, bytesRead);
- }
- os.close();
- fis.close();
- } catch (IOException e) {
- e.printStackTrace();
- }
- return item;
- }
- /**
- * MultipartFile 转 File
- *
- * @param file
- * @throws Exception
- */
- public static File multipartFileToFile(MultipartFile file) throws Exception {
- File toFile = null;
- if (file.equals("") || file.getSize() <= 0) {
- file = null;
- } else {
- InputStream ins = null;
- ins = file.getInputStream();
- toFile = new File(file.getOriginalFilename());
- inputStreamToFile(ins, toFile);
- ins.close();
- }
- return toFile;
- }
- //获取流文件
- private static void inputStreamToFile(InputStream ins, File file) {
- try {
- OutputStream os = new FileOutputStream(file);
- int bytesRead = 0;
- byte[] buffer = new byte[8192];
- while ((bytesRead = ins.read(buffer, 0, 8192)) != -1) {
- os.write(buffer, 0, bytesRead);
- }
- os.close();
- ins.close();
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
- /**
- * 删除本地临时文件
- *
- * @param file
- */
- public static void delteTempFile(File file) {
- if (file != null) {
- File del = new File(file.toURI());
- del.delete();
- }
- }
- private static NumberFormat numberFormat = NumberFormat.getInstance();
- static {
- numberFormat.setGroupingUsed(false);
- }
- /**
- * 解析文件的方法.
- *
- * @param inputStream 文件输入流, 要解析的Excel文件输入流
- * @param fileName 文件名.
- * @param startRow 从第几行开始读取数据.
- * @return List<String [ ]> 集合中的一个元素对应一行解析的数据.
- * 元素为字符串数组类型. 数组中的每个元素对应一列数据.
- * @throws IOException
- */
- public static List<String[]> parseExcel(InputStream inputStream, String fileName, int startRow)
- throws Exception {
- // 1. 定义excel对象变量
- Workbook workbook = null;
- //获取后缀
- String suffix = fileName.substring(fileName.lastIndexOf("."));
- // 2. 判断后缀.决定使用的解析方式. 决定如何创建具体的对象
- if (".xls".equals(suffix)) {
- // 2003
- workbook = new HSSFWorkbook(inputStream);
- } else if (".xlsx".equals(suffix)) {
- // 2007
- workbook = new XSSFWorkbook(inputStream);
- } else {
- // 未知内容
- throw new Exception("请选择xls或者xlsx文件!");
- }
- // 获取工作表 excel分为若干个表. sheet
- Sheet sheet = workbook.getSheetAt(0);
- if (sheet == null) {
- return null;
- }
- // 获取表格中最后一行的行号
- int lastRowNum = sheet.getLastRowNum();
- // 最后一行的行号小于startRow
- if (lastRowNum < startRow) {
- throw new Exception("请输入数据");
- }
- List<String[]> result = new ArrayList<>();
- // 定义行变量和单元格变量
- Row row = null;
- Cell cell = null;
- // 循环读取
- try{
- for (int rowNum = startRow; rowNum <= lastRowNum; rowNum++) {
- row = sheet.getRow(rowNum);
- // 获取当前行的第一列和最后一列的标记(列数)
- short firstCellNum = row.getFirstCellNum();//第一列从0开始
- short lastCellNum = row.getLastCellNum();//最后一列
- if (lastCellNum != 0) {
- String[] rowArray = new String[lastCellNum];
- for (int cellNum = firstCellNum; cellNum < lastCellNum; cellNum++) {
- cell = row.getCell(cellNum);
- // 判断单元格是否有数据
- if (cell == null) {
- rowArray[cellNum] = null;
- } else {
- rowArray[cellNum] = parseCell(cell);
- }
- }
- if(rowArray[0] != null || !rowArray[0].equals("")){
- result.add(rowArray);
- }
- }
- }
- } catch (Exception e){
- throw new Exception("文件存在隐藏行或合并列!");
- }
- return result;
- }
- /**
- * 解析文件的方法.
- *
- * @param inputStream 文件输入流, 要解析的Excel文件输入流
- * @param fileName 文件名.
- * @param startRow 从第几行开始读取数据.
- * @return List<String []> 集合中的一个元素对应一行解析的数据.
- * 元素为字符串数组类型. 数组中的每个元素对应一列数据.
- * @throws IOException
- */
- public static List<List<String[]>> parseExcels(InputStream inputStream, String fileName, int startRow)
- throws Exception {
- // 1. 定义excel对象变量
- Workbook workbook = null;
- //获取后缀
- String suffix = fileName.substring(fileName.lastIndexOf("."));
- // 2. 判断后缀.决定使用的解析方式. 决定如何创建具体的对象
- if (".xls".equals(suffix)) {
- // 2003
- workbook = new HSSFWorkbook(inputStream);
- } else if (".xlsx".equals(suffix)) {
- // 2007
- workbook = new XSSFWorkbook(inputStream);
- } else {
- // 未知内容
- throw new Exception("请选择xls或者xlsx文件!");
- }
- List<List<String[]>> result = new ArrayList<>();
- for (int k = 0; k < workbook.getNumberOfSheets();k++) {
- // 获取工作表 excel分为若干个表. sheet
- Sheet sheet = workbook.getSheetAt(k);
- if (sheet == null) {
- return null;
- }
- // 获取表格中最后一行的行号
- int lastRowNum = sheet.getLastRowNum();
- // 最后一行的行号小于startRow
- if (lastRowNum < startRow) {
- throw new Exception("请输入数据");
- }
- List<String[]> res = new ArrayList<>();
- // 定义行变量和单元格变量
- Row row = null;
- Cell cell = null;
- // 循环读取
- try {
- for (int rowNum = startRow; rowNum <= lastRowNum; rowNum++) {
- row = sheet.getRow(rowNum);
- // 获取当前行的第一列和最后一列的标记(列数)
- short firstCellNum = row.getFirstCellNum();//第一列从0开始
- short lastCellNum = row.getLastCellNum();//最后一列
- if (lastCellNum != 0) {
- String[] rowArray = new String[lastCellNum];
- for (int cellNum = firstCellNum; cellNum < lastCellNum; cellNum++) {
- cell = row.getCell(cellNum);
- // 判断单元格是否有数据
- if (cell == null) {
- rowArray[cellNum] = null;
- } else {
- rowArray[cellNum] = parseCell(cell);
- }
- }
- res.add(rowArray);
- if (rowArray[0] != null && !"".equals(rowArray[0])) {
- res.add(rowArray);
- }
- }
- }
- result.add(res);
- } catch (Exception e) {
- e.printStackTrace();
- throw new Exception("文件存在隐藏行或合并列!");
- }
- }
- return result;
- }
- /**
- * 解析单元格
- *
- * @return String 单元格数据
- */
- private static String parseCell(Cell cell) {
- //空返回空
- if(cell == null){
- return null;
- }
- String result = null;
- switch (cell.getCellType()) {
- case HSSFCell.CELL_TYPE_NUMERIC:// 判断单元格的值是否为数字类型
- if (HSSFDateUtil.isCellDateFormatted(cell)) {// 处理日期格式、时间格式
- SimpleDateFormat sdf = null;
- if (cell.getCellStyle().getDataFormat() == HSSFDataFormat
- .getBuiltinFormat("h:mm")) {
- sdf = new SimpleDateFormat("HH:mm");
- } else {// 日期
- sdf = new SimpleDateFormat("yyyy-MM-dd");
- }
- Date date = cell.getDateCellValue();
- result = sdf.format(date);
- } else if (cell.getCellStyle().getDataFormat() == 58) {
- // 处理自定义日期格式:m月d日(通过判断单元格的格式id解决,id的值是58)
- /*yyyy年m月d日----->31
- yyyy-MM-dd----- 14
- yyyy年m月------- 57
- m月d日 ----------58
- HH:mm-----------20
- h时mm分 ------- 32*/
- SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
- double value = cell.getNumericCellValue();
- Date date = DateUtil
- .getJavaDate(value);
- result = sdf.format(date);
- } else {
- // 返回数值类型的值
- Object inputValue = null;// 单元格值
- Long longVal = Math.round(cell.getNumericCellValue());
- Double doubleVal = cell.getNumericCellValue();
- if (Double.parseDouble(longVal + ".0") == doubleVal) { //判断是否含有小数位.0
- inputValue = longVal;
- } else {
- inputValue = doubleVal;
- }
- DecimalFormat df = new DecimalFormat("#.##"); //格式化为四位小数,按自己需求选择;
- result = String.valueOf(df.format(inputValue)); //返回String类型
- // double value = cell.getNumericCellValue();
- // CellStyle style = cell.getCellStyle();
- // DecimalFormat format = new DecimalFormat("0.00");
- // String temp = style.getDataFormatString();
- // // 单元格设置成常规
- // if (temp.equals("General")) {
- // format.applyPattern("#");
- // }
- // result = format.format(value);
- }
- break;
- case HSSFCell.CELL_TYPE_STRING:// 判断单元格的值是否为String类型
- result = cell.getRichStringCellValue().toString();
- break;
- case HSSFCell.CELL_TYPE_BLANK://判断单元格的值是否为布尔类型
- result = "";
- default:
- result = "";
- break;
- }
- return result;
- }
-
-
-
- /**
- * 生成随机数:当前年月日时分秒+四位随机数
- *
- * @return
- */
- public static String getRandom() {
- SimpleDateFormat simpleDateFormat;
- simpleDateFormat = new SimpleDateFormat("yyyyMMdd");
- Date date = new Date();
- String str = simpleDateFormat.format(date);//当前年月日
- Random random = new Random();
- int rannum = (int) (random.nextDouble() * (9999 - 1000 + 1)) + 1000;// 获取5位随机数
- return str + rannum;
- }
- /**
- * 发货单页面生成的随机发货单编号-按前端设定
- *
- * @return
- */
- public static String Random() {
- SimpleDateFormat simpleDateFormat;
- simpleDateFormat = new SimpleDateFormat("yyyyMMdd");
- Date date = new Date();
- String str = simpleDateFormat.format(date);//当前年月日
- Random random = new Random();
- int rannum = (int) (random.nextDouble() * (99999 - 10000 + 1)) + 10000;// 获取5位随机数
- return "CX-" + str + rannum;
- }
- //截取字符串中数字-按MEs规则来(前八位位年月日,后面拼编号和英文做辨识)
- public static String getNumberText(String str){
- if(StringUtils.isBlank(str)){
- throw new RuntimeException("参数str不能为空");
- }
- StringBuffer number = new StringBuffer("");
- String[] strArray = str.split("");
- for (String string : strArray) {
- //if(!StringUtils.isBlank(string) && RegUtils.isNumberText(string)){
- // number.append(string);
- //}
- }
- return number.toString()+"XG";
- }
- /**
- * 获取Excel中的对象数组
- * @param file
- * @param startRow 默认0
- * @return
- * @throws Exception
- */
- public static List<Map<String,Object>> getExcelList(MultipartFile file, int startRow)
- throws Exception {
- File excel = multipartFileToFile(file);
- FileInputStream inputStream = null;
- String fileName = excel.getName();
- // 解决fileName兼容性问题
- int lastindex = fileName.lastIndexOf("\\");
- fileName = fileName.substring(lastindex + 1);
- if (fileName != null && fileName.length() > 0) {
- inputStream = new FileInputStream(excel);
- }
- //构建返回数组
- List<Map<String,Object>> list = new ArrayList<>();
- // 1. 创建工作簿
- Workbook workbook = null;
- // 2. 根据格式解析文件
- if (fileName.endsWith(".xls")) {
- workbook = new HSSFWorkbook(inputStream);
- }else if(fileName.endsWith(".xlsx")){
- workbook = new XSSFWorkbook(inputStream);
- }else {
- throw new Exception("请选择xls或者xlsx文件!");
- }
- for (int sheetIndex = 0; sheetIndex < workbook.getNumberOfSheets();sheetIndex++) {
- // 获取工作表 excel分为若干个表. sheet
- Sheet sheet = workbook.getSheetAt(sheetIndex);
- if (sheet == null) {
- break;
- }
- // 获取表格中最后一行的行号
- int lastRowNum = sheet.getLastRowNum();
- if (lastRowNum < startRow) {
- throw new Exception("第"+sheetIndex+"个工作簿无数据!请检查Excel!");
- }
- // 定义行变量和单元格变量
- Row row = null;
- Cell cell = null;
- //获取表头
- Row titlesRow = sheet.getRow(startRow);
- // 获取当前行的第一列和最后一列的标记(列数)
- int firstCellNum = titlesRow.getFirstCellNum();//第一列
- int lastCellNum = titlesRow.getLastCellNum();//最后一列
- String[] titles = new String[lastCellNum];
- if (lastCellNum > firstCellNum) {
- for (int cellNum = firstCellNum; cellNum < lastCellNum; cellNum++) {
- cell = titlesRow.getCell(cellNum);
- // 判断单元格是否有数据
- if (cell == null) {
- titles[cellNum] = null;
- } else {
- titles[cellNum] = parseCell(cell);
- }
- }
- }else {
- throw new Exception("第"+sheetIndex+"个工作簿无表头数据!请检查Excel!");
- }
- try {
- //遍历除表头外的所有行
- for (int rowNum = startRow+1; rowNum <= lastRowNum; rowNum++) {
- row = sheet.getRow(rowNum);
- //遍历行的所有列
- Map<String,Object> item = new HashMap<>();
- for (int cellNum = firstCellNum; cellNum < lastCellNum; cellNum++) {
- cell = row.getCell(cellNum);
- //获取表头对应数据
- if (titles[cellNum] != null && !titles[cellNum].equals("")
- && cell !=null && !cell.toString().equals("")) {
- item.put(titles[cellNum],parseCell(cell));
- }
- }
- if(item.keySet().toArray().length >0 ){
- list.add(item);
- }
- }
- } catch (Exception e) {
- e.printStackTrace();
- throw new Exception("文件存在隐藏行或合并列!");
- }
- }
- return list;
- }
- }
|